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UK83055500cUK – Translation of the original operating manual

Operating ManualHydraulic Module 2

Accessories fortwo Dual Air / Water Heat Pumps

HMD 2/(S)EHMD 2/R(S)E

2 Subject to change without notice | 83055500cUK – Translation of the original operating manual | ait-deutschland GmbH

Please read firstThis operating manual provides important information on handling the unit. It is an integral part of the product and must be kept ready to hand in the immediate vicin-ity of the unit. It must remain available throughout the entire service life of the unit. It must be handed over to subsequent owners or users of the unit.

Read the operating manual before working on or op-erating the unit. This applies in particular to the chap-ter on safety. Always follow all instructions completely and without restrictions.

It is possible that this operating manual may contain instructions that seem incomprehensible or unclear. In the event of any questions or if any details are unclear, contact the factory customer service department or the manufacturer's local partner.

As this operating manual has been written for sever-al unit models, always comply with the parameters for the respective model.

This operating manual is intended only for persons as-signed to work on or with the unit. Treat all constituent parts confidentially. The information contained herein is protected by copyright. No part of this manual may be reproduced, transmitted, copied, stored in electron-ic data systems or translated into another language, either wholly or in part, without the express written permission of the manufacturer.

SymbolsThe following symbols are used in the operating man-ual. They have the following meaning:

Information for operators.

Information or instructions for qualified technicians.

DANGER Indicates a direct impending danger result

ing in severe injuries or death.

WARNING Indicates a potentially dangerous situa

tion that could result in serious injuries or death.

CAUTION Indicates a potentially dangerous situation

that could result in moderate or slight injuries.

ATTENTION Indicates a potentially dangerous situation,

which could result in property damage.

NOTE Emphasised information.

9 Prerequisite for an action.

► Single-step instruction for action.

1., 2., 3., … Numbered step within a multi-step in-struction for action. Adhere to the given se-quence.

● List.

Reference to further information elsewhere in the operating manual or in another docu-ment.

€ ENERGY SAVING TIP Indicates suggestions that help to save energy,

raw materials and costs.

3Subject to change without notice | 83055500cUK – Translation of the original operating manual | ait-deutschland GmbH

ContentsPlease read first ........................................................ 2Symbols ..................................................................... 2Intended use .............................................................. 4Disclaimer .................................................................. 4Safety and Security ................................................... 4Contact ...................................................................... 5Warranty / Guarantee ................................................ 5Waste disposal .......................................................... 5Heat metering ............................................................ 5Operation ................................................................... 5Care of the unit .......................................................... 6Maintenance of the unit ............................................. 6Malfunctions .............................................................. 6Scope of supply ......................................................... 6

Components of the unit ........................................ 7Installation ................................................................. 8

Installation location ............................................... 8Transport to installation location .......................... 8Installation ............................................................ 8Unit lettering / labelling ......................................... 9Installation / Hydraulic connection

to heating circuit ............................................ 10Safety assembly ..................................................11Expansion vessels ..............................................11

Electrical connections ............................................. 12400 V / 230 V operation ..................................... 12Electrical connection of the heat pumps

to the hydraulic module ................................. 13Flushing, filling and bleeding the system ................. 15Insulating the hydraulic connections ....................... 15Set the overflow valve ............................................. 16Commissioning ........................................................ 16

Safety temperature limiter .................................. 16Dismantling .............................................................. 17

Technical data/Scope of supplyHMD 2/(S)E ........................................................ 18HMD 2/R(S)E ..................................................... 19

Free pressure .......................................................... 20Dimensioned drawings

HMD 2/(S)E ........................................................ 21HMD 2/R(S)E ..................................................... 22

Drilling pattern ......................................................... 23Installation plans

HMD 2/(S)E ........................................................ 24HMD 2/R(S)E ..................................................... 25

Pressure loss calculationsCalculation example ........................................... 26Calculation of your system ................................. 27

Flushing and venting processesFlushing and venting process, hot water circuit . 28Flushing and venting process, heating circuit .... 29Flushing and venting process, heat pump 1 ...... 30Flushing and venting process, heat pump 2 ...... 31

Hydraulic integrationRow tank ............................................................ 32Separate buffer tank and

unit variant R (cooling)................................... 33Legend Hydraulic integration.............................. 34

Schematic diagram of the electrical connections .... 36Terminal diagrams

400V: LWD … / HMD 2/… .................................. 37230V: LWD ... / HMD 2/… ................................... 38

Circuit diagrams ...................................................... 39EC declaration of conformity ................................... 43


Intended useThe hydraulic module is a functionally relevant acces-sory for dual air/water heat pumps intended for out-door installation. Taking into account the limits of use, the unit can be used in conjunction with up to two dual air/water heat pumps installed outdoors in new or ex-isting heating systems.The unit must be used solely for its intended purpose. This means, in conjunction with a dual air/water heat pump:

● for heating. ● for cooling (reversible variant only). ● for water heating.

The unit may be operated only within its technical pa-rameters.

“Technical Data / Scope of Supply” overview from Page 18 and “Technical Data / Scope of Sup-ply” overview of the operating manual of the heat pump to which the hydraulic module is connected.

DisclaimerThe manufacturer is not liable for damage or losses resulting from any use of the unit which is not its in-tended use.

The manufacturer's liability also expires:

● if work is carried out on the unit and its compo-nents contrary to the instructions in this oper-ating manual.

● if work is carried out improperly on the unit and its components.

● if work is carried out on the unit which is not described in this operating manual, and this work has not been explicitly approved by the manufacturer in writing.

● if the unit or components in the unit have been altered, modified or removed without the ex-plicit written consent of the manufacturer.

Safety and SecurityThe unit is safe to operate for its intended use. The construction and design of the unit conform to current state-of-the-art standards, all relevant DIN/VDE regu-lations and all relevant safety regulations.

Every person who performs work on the unit must have read and understood the operating manual prior to starting any work. This also applies if the respective person has already worked with such a unit or a simi-lar unit or has been trained by the manufacturer.

Every person who performs work on the unit must comply with the applicable accident prevention and safety regulations. This applies in particular to the wearing of personal protective equipment.

DANGER Risk of fatal electric shock! All electrical connection work must be car

ried out by qualified electricians only. Before opening the unit, disconnect the

system from the power supply and prevent it from being switched back on!

WARNING Only qualified personnel (trained heating,

cooling engineers and electricians) may carry out work on the unit and its components.

WARNING Observe safety labels on and in the unit.

ATTENTION For safety reasons: Never disconnect the unit from the power sup-

ply system, unless the unit is being opened.


ContactAddresses for purchasing accessories, for servicing or for answers to questions about the unit and this operating manual can be found on the internet and are kept up-to-date:

● Germany: www.alpha-innotec.de

● EU: www.alpha-innotec.com

Warranty / GuaranteeFor warranty and guarantee conditions, please refer to the purchase documents.

NOTE Please contact your dealer about all matters

concerning warranties and guarantees.

Waste disposalWhen decommissioning the unit, always comply with applicable laws, directives and standards for the re-covery, recycling and disposal of materials and com-ponents.

“Dismantling”, Page 17

Heat meteringIn addition to proof of the unit's efficiency, the EEWaer-meG also requires heat metering (hereafter referred to as HQR). Heat metering is mandatory for air/water heat pumps. A WME (heat metering) only has to be installed for brine/water and water/water heat pumps for a flow temperature ≥35 °C. The WME must record the total thermal energy output (heating and hot water) in the building. In heat pumps with heat metering, the analysis is carried out by the regulator. The regulator displays the thermal energy discharged in the heating system in kWh.

OperationYour decision to purchase a heat pump or a heat pump system is a long-term contribution to protecting the en-vironment through low emissions and reduced prima-ry energy use.You can operate and control the heat pump system with the control element of the heating and heat pump regulator.

NOTE Make sure that the control settings are correct.

Operating manual of the heating and heat pump controller.

To ensure that your heat pump or heat pump system operates efficiently and ecologically, the following are especially important:

€ ENERGY SAVING TIP Avoid unnecessarily high flow temperatures. A lower flow temperature on the hot water side

increases the efficiency of the system.

€ ENERGY SAVING TIP Preferably use purge ventilation. Compared to

continuously open windows, it is better to air rooms by fully opening windows for a short pe-riod, two to three times a day (so-called “rapid” or “purge” ventilation); this reduces energy consumption and your heating bill.


Care of the unitThe outer surfaces of the unit can be cleaned with a damp cloth and standard cleaning products.

Do not use cleaning or care products that contain abrasives, acids and/or chlorine. Such products would destroy the surfaces and could also damage the tech-nical components of the unit.

Maintenance of the unitThe components of the heating circuit and the heat source (valves, expansion vessels, circulation pumps, filters, dirt traps) should be checked and cleaned as necessary, however, at least annually, by qualified per-sonnel (heating or cooling system fitters).

It is best to sign a maintenance agreement with a heat-ing installation company. The company will arrange for the required maintenance at regular intervals.

MalfunctionsIn the event of a fault, you can read out the cause of the fault from the diagnostic program of the heating and heat pump regulator.


ATTENTION Only customer service personnel authorised

by the manufacturer may carry out service and repair work on the components of the unit.

Note that no malfunction is displayed if the safety tem-perature limiter on the electric heating element has tripped.

“Commissioning”, “Safety temperature limiter” section. Page 16

Scope of supply

1 Hydraulic module with integrated heating and heat pump controller

2 Safety assembly (in the case of the reversible variant these are the half-shells for insulation. The safety assembly itself is preassembled and installed.)

Example of layout of the accessory package:

1 Ball valve DN 32 (1x)2 Screws and anchors for

wall bracket (3x each)3 Ball valves DN 20 (2x)4 Heat transfer paste and clip for

fixing the return flow sensor5 Cable ties6 Strain relief screws (12x)7 Flat seals: 1" (2x), 1¼" (1x)not shown:Stickers for unit and cable labelling 2 jumpers for operation in the 230 V power supply system

1. Check the delivery for outwardly visible signs of damage.


2. Check the scope of supply for completeness. Any defects or incorrect deliveries must be report-

ed immediately.

NOTE Note the unit model.

“Technical Data / Scope of Supply” overview from Page 18 or rating plate on the unit.

Components of the unit2 versions of the hydraulic module are available:

HMD 2/(S)E

1 Heating circuit safety assembly (insulated)2 Control panel3 Switch cabinet4 Safety temperature limiter

with Reset button5 Flow inlet, heat pump 26 Flow inlet, heat pump 17 Flow outlet, heat pump 1 and 28 Instantaneous water heater 6 kW9 Energy efficient heating

circuit circulation pump

Reversible variant: HMD 2/R(S)E

1 Heating circuit safety assembly (insulated)2 Control panel3 Switch cabinet4 Safety temperature limiter

with Reset button5 Flow inlet, heat pump 26 Flow inlet, heat pump 17 Flow outlet, heat pump 1 and 28 Instantaneous flow heater 6 kW with

sensor tube for safety temperature limiter9 Energy efficient heating

circuit circulation pump


InstallationThe following applies to all work to be done:

NOTE Always comply with the applicable local acci-

dent prevention regulations, statutory regula-tions, ordinances, guidelines and directives.

Installation location

ATTENTION Install the unit inside buildings only.

The installation room must be frost-free and dry. It must fulfil the relevant local regulations.

Dimensioned drawing (from Page 21) and in-stallation plan (from Page 24) for the respective model.

Transport to installation locationTo prevent damage during transport, always transport the unit to final installation location in its original pack-aging.

ATTENTION Never use components and hydraulic connec-

tions on the unit for transport purposes.

Installation1. 2 people are needed to lift the hydraulic module

out of the box.

2. Undo the quick-release screws in the top section of the hydraulic module and remove the top sec-tion from the front.

1 Quarter-turn screws

3. Remove the inner packaging material (transport safeguard).

4. Align the mounting rail in line with the drilling pat-tern at an appropriate height on the wall and mark the drillholes on the wall.

Note the drilling pattern (Page 23), safety and service spacings, see installation plan (from Page 24) for the respective model.

5. Use the plugs and screws supplied to secure the fixing rail onto the wall.

CAUTION Ensure the wall has the necessary load

bearing capacity. The anchors supplied are only suitable for use in

the following types of walls: ● Concrete ● Solid lightweight concrete blocks ● Cavity block made of lightweight concrete ● Cellular concrete ● Prestressed concrete - hollow ceiling/floor

slabs ● Natural stone with dense, close-grained micro-

structure ● Solid sand-lime bricks ● Perforated sand-lime bricks ● Solid bricks


● Vertically perforated (honeycomb) bricks ● Hollow floors/ceilings made of clay bricks, con-

crete or similar ● Solid gypsum boards ● Gypsum boards and gypsum fibre boards ● Particle boards

The board material must be dimensioned with suffi-cient thickness to ensure secure fixing.Appropriate fixing material must be provided on site for other types of wall constructions.

Mounting rail installed on the wall

ATTENTION Leaving a gap between the unit and the wall

helps back ventilation and may not be sealed or closed off.

Cable ducts must be laid at a distance of at least 2 cm from the hydraulic module.

CAUTION Hands and fingers could be crushed dur

ing the following tasks!6. 2 people are needed to hang the hydraulic mod-

ule in the mounting rail.

Unit lettering / labellingBefore making the hydraulic and electrical connection you must label the two heat pumps outdoors and their connection cables.

1. Remove all stickers for unit and cable labelling from the separate package included with the hy-draulic module.

2. Attach the larger sticker with number 1 in a clearly visible position on the outer façade of one of your heat pumps.

1

3. Attach the smaller stickers with number 1 to all connection cables of this heat pump 1 – at the ends which will later be connected to the hydraulic module. This way it is clear at the hydraulic mod-ule inside the building that these connection ca-bles lead to heat pump 1.

4. Attach the larger sticker with number 2 in a clear-ly visible position on the outer façade of your sec-ond heat pump.

2

5. Attach the smaller stickers with number 2 to all connection cables of this heat pump 2 – at the ends which will later be connected to the hydraulic module. This way it is clear at the hydraulic mod-ule inside the building that these connection ca-bles lead to heat pump 2.


Installation / Hydraulic connection to heating circuitPressure loss calculation

NOTE There are two circulation pumps integrated in

the hydraulic module, which are appropriately dimensioned to ensure an adequately high vol-ume flow (flow rate) on the heat sink side. The free pressure available is limited, which makes planning in advance indispensable. For de-tails of how high the free pressures of the cir-culation pumps are at the corresponding heat pump volume flows, refer to the “free pressure” curves in the operating manual of the con-nected heat pumps.

Operating manuals of your heat pumps

A pressure loss calculation must be performed in ad-vance for the hydraulic connection of the hydraulic module, to dimension the components used (for ex-ample, the pipe diameter). This is the only way to de-termine the head of the still available free pressure, which is provided outside of the hydraulic module by the two integrated circulation pumps.

The free pressure available for the external piping of the heat sink side can be identified in the hydraulic module.

A calculation example of the hydraulic calculation / pressure loss calculation is given on Page 26 of this operating manual. On Page 27 there is a schematic, in which you can enter or calculate the data for your system.

The hydraulic components of a system must be cho-sen and dimensioned so that the sum of all pressure losses (heat pump, connection pipe, storage tank, changeover valves, heating circuit etc.) is less than the free pressure available in accordance with the operat-ing manual of the connected heat pumps.

As it is possible to operate two heat pumps with differ-ent heat outputs at the hydraulic module (for example, an LWD50A and an LWD70A) and therefore to operate them with different volume flows, this means that the two pipe runs of heat pump 1 and heat pump 2 can be loaded asymmetrically:

Depending on the connected heat pump types, the free pressure of pipe run 1, as a result of a higher pressure loss, can be lower than the free pressure of pipe run 2. In this case, for the further dimensioning it is important for the design to be based on the pipe run with the more unfavourable hydraulic conditions.

1. Calculate the hydraulics of your system in accord-ance with the schematic on Page 27 .

2. Flush the heating circuit thoroughly before con-necting the unit to the heating circuit.

NOTE Contamination and deposits in the heating cir-

cuit can cause malfunctions.

3. Install filling and draining devices, shut-off valves and non-return valves at the required locations in the heating circuit.

4. Check whether the units have already been la-belled. If not, label the units now.

Page 9, Unit lettering / labelling.

5. Make hydraulic connections to the hydraulic mod-ule according to the unit labelling. The connec-tions for the heating circuit are located on the un-derside of the hydraulic module.

NOTE The circulation pumps or rather the pipe runs

on or in the hydraulic module have already been labelled in the factory with number 1 for the connections of heat pump 1 and number 2 for the connections of heat pump 2.

ATTENTION When installing the connections, always se-

cure the connections on the unit against twist-ing, to prevent damage to the copper pipes in-side the unit.


1 Flow inlet, heat pump 12 Flow inlet, heat pump 23 Flow outlet, heat pump 1 and 2

“Hydraulic integration” documents.

Safety assemblyHMD 2/(S)EThe safety assembly for the heating circuit is in the ex-tra box. The connection for the safety assembly is lo-cated at the top of the hydraulic module.

1. Install the safety assembly at the connection pro-vided at the top of the hydraulic unit.

2. Lay the safety discharge of the safety valve via a funnel-shaped odour trap and into the drain ac-cording to the relevant standards and guidelines.

ATTENTION The safety discharge must be connected!

HMD 2/R(S)EThe safety assembly for the heating circuit is pre-in-stalled.

ATTENTION Perform leak test on the piping.

1. Take the insulation half-shells from the enclosed separate package and insulate the adapter from the hydraulic module to the safety assembly.

2. Lay the safety discharge of the safety valve via a funnel-shaped odour trap and into the drain ac-cording to the relevant standards and guidelines.

ATTENTION The safety discharge must be connected!

Expansion vessels

ATTENTION The expansion vessel for the heating circuit is

not included in the scope of supply! Always check whether the size of the expan-

sion vessel is large enough for the system. If necessary, an additional expansion vessel must be installed on site according to the rele-vant standards and guidelines.

NOTE The admission pressure of the expansion ves-

sel must be adjusted to the system (approx. 0.5 bar less than the system filling pressure) according to the calculation to the relevant standards (EN 12828).


Electrical connectionsThe following applies to all work to be done:

DANGER Risk of fatal electric shock! All electrical connection work must be car

ried out by qualified electricians only. Before opening the unit, disconnect the


WARNING Note and follow the relevant EN, VDE and/

or local safety regulations during installation and when carrying out electrical work.

Comply with technical connection requirements of the responsible power supply company (if required by the latter)!

WARNING Install electric connections only according

to the terminal diagram that applies to your model.

NOTE All live wires must be stripped before they are

installed in the cable duct of the switch cabi-nets!

ATTENTION The power supply for the heat pump and the

electric heating element must be equipped with an all-pole automatic circuit-breaker with at least 3 mm contact spacing to IEC 60947-2.

Note the level of the tripping current.

“Technical data / scope of supply” overview, “Elec-trics” section (from Page 18).

The electrical connection of the heat pumps outdoors is made only via the hydraulic module inside the build-ing.

“Schematic diagram of “Electrical connections”, Page 36

400 V / 230 V operationThe hydraulic module is compatible with heat pumps for the 3~400V power supply system (3~N/PE/400V/50Hz) and with heat pumps for the 1~230V power supply system (1~N/PE/230V/50Hz).

In the condition as-delivered from the factory the hy-draulic module is set up for operation with heat pumps for the 3~400V power supply system. You can see this condition as-delivered from the factory at the terminal block in the switch cabinet of the hydraulic module:

1L1

1L2

1L3

1N1

1N2

1N3

Condition as-delivered from the factory1 Jumper between 1N1 and 1N22 Jumper between 1N2 and 1N3

The following unit combinations are possible in condi-tion as-delivered from the factory (3~400V power sup-ply system):

Heat pump type Hydraulic moduleLWD 50A HMD 2/(S)ELWD 70A HMD 2/(S)ELWD 90A HMD 2/(S)ELWD 50A/RX HMD 2/R(S)ELWD 70A/RX HMD 2/R(S)E

Changeover 400 V connection to 230 VIf the hydraulic module is to be operated with heat pumps for the 1~230V power supply system, in addition to the jumpers in the condition as-delivered from the factory, you must set two additional jumpers between terminals 1L1 and 1L2 and between 1L2 and 1L3. The jumpers are enclosed in the separate package.


Electrical connection of the heat pumps to the hydraulic module

Example HMD 2/(S)E:

1 230 V inputs2 Terminal strip, external sensors3 LINBus cable connection

-X1 for heat pump 1 -X2 for heat pump 2

4 Terminal strip for control supply cables of the heat pumps

5 Terminal strip, power supply cables

● Heat pumps X8-1 for heat pump 1 X8-2 for heat pump 2

● Heating element6 Cable routing

1. Feed the connection cable through the ducts of the wall penetration from the outside into the in-side of the building. Use the lubricant.

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D

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14

15

2x F 2x H

2x R

P

C

12

8b

90°

90°

90°

O

10O

3Ph/400V

a

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16

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2x U

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ATTENTION When laying the cable, note that unshielded

power supply cables (power supply of outdoor units) and shielded cables (LINBus) must be laid separately from each other.

1L1

1L2

1L3

1N1

1N2

1N3

New jumpers to be set for operation in the 1~230V power supply system3 Jumper between 1L1 and 1L24 Jumper between 1L2 and 1L3

ATTENTION This termination is only allowed if the hydraulic

module is operated in the 1~230V power supply system and only with appropriate heat pumps designed for 1~230V power supply systems.

The following unit combinations are possible in the 1~230V power supply system:

Heat pump type Hydraulic moduleLWD 50A/SX HMD 2/(S)ELWD 70A/SX HMD 2/(S)ELWD 50A/RSX HMD 2/R(S)ELWD 70A/RSX HMD 2/R(S)E

ATTENTION Before each further action, check which heat

pump types are operated with the hydraulic mod-ule and if applicable set or remove jumpers.

Heat pumps for the 3~400V power supply sys-tem may not be operated in the 1~230V power supply system.

ATTENTION Heat pumps for the 1~230V power supply are

not available in all countries. Contact power company before the use of heat pumps for the 1~230V power supply.


4. Connect LINBus cable of heat pump 1 to termi-nal strip -X1.

5. Connect LINBus cable of heat pump 2 to terminal strip -X2.

NOTE The Commissioning (startup) Wizard of the

heating and heat pump controller will give you instructions on addressing the heat pumps when you start up the system for the first time.

Then follow the instructions displayed in the screen of the heating and heat pump control-ler.

6. Connect the control supply cables of heat pump 1 and heat pump 2 to the terminal strip for control supply cables.

Heat pump-specific assignment (heat pump 1 / heat pump 2) is not necessary here; the two ca-bles can be connected to the relevant terminal strip in any order.

7. Use cable ties and heat transfer compound to fix the return sensor to the joint return (heat carrying pipe) of heat pumps 1 and 2.

Hydraulic integration documents

Unshielded power supply cables (power sup-ply of outdoor units) and shielded cables (LIN-Bus) must be laid with the following minimum distances between them:

without separator ≥ 50 mmseparator made of aluminium ≥ 20 mm

separator made of steel ≥ 2 mm

2. From the cable labelling, find out which cables come from heat pump 1 and which cables come from heat pump 2.

If the units and cables have not yet been labelled, label the units and cables now.

Page 9, Unit lettering / labelling.

3. Connect the supply cable of heat pump 1 to ter-minal strip 1 (X8-1) and the supply cable of heat pump 2 to terminal strip 2 (X8-2).

NOTE In the hydraulic module, the terminal strips

for these supply cables have already been la-belled in the factory with the number 1 for the supply cable of heat pump 1 and number 2 for the connections of heat pump 2.

1 2

1 Terminal strip X8-1 for heat pump 1 supply cable

2 Terminal strip X8-2 for heat pump 2 supply cable


8. Seal the cable penetrations for cables, which are routed from the heat pumps into the buildings, in the outdoor area.

NOTE The control panel of the heating and heat

pump controller can be connected to a com-puter or network, via the left-hand LAN socket on its underside, using a suitable network ca-ble, enabling the heating and heat pump con-troller to be controlled remotely from there.

If such a connection is required, install a shielded network cable (category 6, with RJ45 connector) during the electrical connection work and con-nect it parallel to the existing control cable of the heating and heat pump regulator.

The network cable can be added subsequently at any time.

Flushing, filling and bleeding the system

ATTENTION The system must be absolutely free from air

before commissioning. Contamination and deposits in the system can

cause malfunctions.

ATTENTION Do not exceed a pressure of 2.5 bar when

flushing the unit. The drain line of the heat-ing circuit safety valve must be closed before flushing and filling.

Example with storage tanks connected in series:

1. Connect the hose to the filling and draining tap and lay it to a drain.

2. Connect the filling and drain tap at the hydraulic module (heating water inlet from the heat pump).

3. Close the shut-off valves in the hydraulic mod-ule to the heat pump. Open shut-off valves to the heating circuit.

Example diagram: “Hot water circuit flushing and venting process”, Page 28

“Changeover valve” operating manual

4. Dismantle the motor of the 3-way valve for water heating (accessory). To do so, remove the U-bolt on the motor base and carefully pull off the motor from above..

5. Turn the stem through 180° and flush the hot wa-ter charging circuit for approx. 1 minute.

6. Turn the spindle 180° back to its starting position (rounded side of the stem points to B).

7. Flush the heating circuit! If necessary, the heating and hot water circuit can be flushed at the same time! To do so, turn stem through 30°.

Example diagram: “Heating circuit flushing and venting process”, Page 29

8. After completing the flushing and filling process, place the stem in the initial position and install the motor of the 3-way valve.

9. The unit vents automatically if the venters (black cap) of the safety assembly are open. If the heat-ing circuit is filled or emptied, the bleeding valve opens.

10. Open the shut-off valves in the hydraulic mod-ule to the heat pump. Close shut-off valves to the heating circuit. Close the shut-off valves on site to the heat pump:

Example diagram: “Flushing and venting process, heat pump 1”, Page 30

Example diagram: “Flushing and venting process, heat pump 2”, Page 31

11. Swap the hoses at the filling and draining taps and flush the condenser of the heat pump via the re-turn.

12. Also open the venting valve at the condenser of the heat pump. Vent the condenser and then close the venting valve again when fully vented.

Insulating the hydraulic connectionsYou must insulate the fixed piping of the heating cir-cuit, the connection pipes between the hydraulic mod-ule and the heat pump and the connections of the hot water tank.In (R) variant, vapour diffusion tight.

NOTE Insulate in accordance with applicable local

standards and guidelines/directives.


Set the overflow valve REMARQUE

The activities in this section are only neces-sary for in-line tank integration.

Complete the worksteps quickly, otherwise the maximum return temperature can be exceeded and the heat pump switches to high-pressure fault.

Turn the adjusting knob at the overflow valve to the right to increase the temperature differ-ence (the temperature drop), turn it to the left to reduce it.

System is running in heating mode (ideally in cold condition).

1. In case of low heating curve: Set the system to “Forced heating”.


2. Shut off valves to the heating circuit.

3. Ensure that the total flow is routed via the over-flow valve.

4. Read out the flow and return temperature at the heating and heat pump controller.


5. Turn the adjusting knob (1) of the overflow valve (2) until the temperature drop between the flow and return temperature is set as follows:

External temperature Recommended settings-10 °C 4 K

0 °C 5 K10 °C 8 K20 °C 9 K30 °C 10 K

6. Open valves to heating circuit.

7. Reset the heating and heat pump controller.

Commissioning Follow the instructions in the section entitled

“Commissioning” in the operating manual for your heat pump.

Safety temperature limiterA safety temperature limiter is installed in the electric heating element. In the event of a malfunction in the heat pump or air in the system, check whether the re-set button of the safety temperature limiter has tripped. If this is the case, push in the button.

HMD 2/(S)E

1 Reset button of the safety temperature limiter at the electric heating element


Dismantling

DANGER Risk of fatal electric shock! All electrical work must be carried out by

qualified electricians only. Before opening the unit, disconnect the


WARNING Only qualified heating or cooling system

technicians are allowed to remove the unit from the system.

ATTENTION Recycle or provide for proper disposal of unit

components in accordance with the applicable regulations, standards and directives.

Removing the buffer battery

ATTENTION Before scrapping the heating and heat pump

controller, remove the buffer battery on the control board. The battery can be pushed out using a screwdriver. Ensure environmentally compatible disposal of the battery and elec-tronic components.

HMD 2/R(S)E

1 Sensor tube on the electric heating element

2 Reset button of the safety temperature limiter


Unit designationAccessories for LWD 50A - LWD 70A - LWD 90A - LWD 50A/SX - LWD 70A/SX • applicable ı — not applicable

Heat pump type LWD 50A/RX - LWD 70A/RX - LWD 50A/RSX - LWD 70A/RSX • applicable ı — not applicable

Functionally relevant • applicable ı — not applicable

Installation location Indoors ı Outdoors • applicable ı — not applicable

Maximum room temperature °C

Maximum relative humidity %

Conformity CE

Heating circuit Heating circuit efficiency pump integrated: • yes — no

Free pressure, heating circuit pump: ∆p **) ı ∆pmax ı Volume flow bar ı bar ı l/h

Volume flow: minimum flow rate ı maximum flow rate l/h

max. allowable operating pressure bar

Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar

Buffer tank integrated: • yes — no

Heat metering integrated: • yes — no

General unit data Total weight kg

Electric Voltage code ı all-pole fusing per heat pump LWD 50A*) … ı A

Voltage code ı all-pole fusing per heat pump LWD 70A*) … ı A


Voltage code ı all-pole fusing per heat pump LWD 50A/SX *) ***) … ı A


Voltage code ı circuit breaker control voltage *) … ı A

Voltage code ı fusing of electric heating element for 1~230V power supply system*) … ı A



Protection type IP

Output of electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW

Circulating pump, heating circuit: maximum power consumption ı current consumption kW ı A

Safety equipment Safety assembly heating circuit ı Safety assembly heat source included in scope of supply: • yes — no

Heating and heat pump regulator included in scope of supply: • yes — no

Overflow valve integrated: • yes — no

*) comply with local regulations **) factory setting ***) Heat pump is not available in all countries

HMD2/(S)E • —•

• ı —3560• •

0,45 ı 0,45 ı 2 x 1600 2 x 900 ı 2 x 2000

3——•

393~/N/PE/400V/50Hz ı C163~/N/PE/400V/50Hz ı C163~/N/PE/400V/50Hz ı C16

1~/N/PE/230V/50Hz ı 2 x C161~/N/PE/230V/50Hz ı 2 x C20

1~/N/PE/230V/50Hz ı B16

1~/N/PE/230V/50Hz ı B403~/PE/230V/50Hz ı B25A

3~/N/PE/400V/50Hz ı B16A

209 ı 6 ı 3

2 x 0,06 ı 2 x 0,26• ı —

•—

813315

Technical data/Scope of supply


Unit designationAccessories for LWD 50A - LWD 70A - LWD 90A - LWD 50A/SX - LWD 70A/SX • applicable ı — not applicable

Heat pump type LWD 50A/RX - LWD 70A/RX - LWD 50A/RSX - LWD 70A/RSX • applicable ı — not applicable

Functionally relevant • applicable ı — not applicable

Installation location Indoors ı Outdoors • applicable ı — not applicable

Maximum room temperature °C

Maximum relative humidity %

Conformity CE

Heating circuit Heating circuit efficiency pump integrated: • yes — no

Free pressure, heating circuit pump: ∆p **) ı ∆pmax ı Volume flow bar ı bar ı l/h

Volume flow: minimum flow rate ı maximum flow rate l/h

max. allowable operating pressure bar

Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar

Buffer tank integrated: • yes — no

Heat metering integrated: • yes — no

General unit data Total weight kg

Electric Voltage code ı all-pole fusing per heat pump LWD 50A*) … ı A





Voltage code ı circuit breaker control voltage *) … ı A




Protection type IP

Output of electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW

Circulating pump, heating circuit: maximum power consumption ı current consumption kW ı A

Safety equipment Safety assembly heating circuit ı Safety assembly heat source included in scope of supply: • yes — no

Heating and heat pump regulator included in scope of supply: • yes — no

Overflow valve integrated: • yes — no

*) comply with local regulations **) factory setting ***) Heat pump is not available in all countries

HMD2/R(S)E—••

• ı —3560• •

0,45 ı 0,45 ı 2 x 1600 2 x 900 ı 2 x 2000

3——•

403~/N/PE/400V/50Hz ı C163~/N/PE/400V/50Hz ı C163~/N/PE/400V/50Hz ı C16

1~/N/PE/230V/50Hz ı 2 x C161~/N/PE/230V/50Hz ı 2 x C20

1~/N/PE/230V/50Hz ı B16

1~/N/PE/230V/50Hz ı B403~/PE/230V/50Hz ı B25A

3~/N/PE/400V/50Hz ı B16A

209 ı 6 ı 3

2 x 0,06 ı 2 x 0,26• ı —

•—

813316


Bezeichnung:

Datei: 812036 Freie Pressung HMD 2

Seite: 1/1

Zeichnungsnummer:

Legende:“v” Volumenstrom Heizwasser in m3/h je Pumpenzweig, zwei Zweige verfügbar∆pmax maximale freie Pressung

Freie Pressung HMD 2

812036

Änd./ÄM/Ersteller/Datum

- /PEP 005-2014 / Mödder / 21.02.2014

812036

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,0 0,5 1,0 1,5 2,0 2,5 3,0

Δpm

ax [b

ar]

Δpmax

Δp

“” [m3/h]

Keys: UK812036

“” Heating water volume flow in m³/h per pump branch, two branches available∆pmax maximum free pressure

HMD 2/… Free pressure


951

695

650

134

590

109 109 108

125

1

46 5 3 2 93

108

280

79

11

Legende: D819439 Alle Maße in mm.

A Vorderansicht D Seitenansicht von rechts

Das Hydraulikmodul wird im Heizungsvorlauf installiert!

D A

87654321

www.ait-deutschland.euD - 95359 Kasendorf

Industriestraße 3ait-deutschland GmbH

1

1

Ers. d. Ers. f.

A

B

C

D

E

F F

E

D

C

B

A

4321

Benennung

Zust. Änderungstext

Datum

Von

Blatt

von

Werkstoff Gewicht

Maßstab 1:10 Det. Maßstab

Datum NameErstelltGepr.Norm.

24.4.2014 Aepfelbach

toleranzAllgemein- Oberflächen

ArtikelNr.

Schu

tzver

merk

ISO

1601

6 bea

chten

DIN ISO 2768 -c

Aepfelbach24.4.2014koex110.4.2014

RA

23.4.2014

PEP 005/2014-

819439

Hydraulikmodul HMD2 150858Maßbild

Keys: UK819439All dimensions in mm.

A Front viewD Side view from right

The hydraulic module is installed in the heating flow!

Pos. Designation Dim.1 Control element2 Penetrations for electric/sensor cables3 Return flow sensor approx. 5.5 m from unit4 Heating water inlet (from heat pump 2) Rp 1" IG5 Heating water outlet (flow) Rp 1¼" IG6 Heizwasser Eintritt (von Wärmepumpe 1) Rp 1" IG

Dimensioned drawings HMD 2/(S)E


103

7

125

695

650

590

109 109 108

134

1

6 5 4 3 2

270

79

108

93

11

Legende: D819440 Alle Maße in mm.

A Vorderansicht D Seitenansicht von rechts

Das Hydraulikmodul wird im Heizungsvorlauf installiert!

D A

87654321



1

1

Ers. d. Ers. f.

A

B

C

D

E

F F

E

D

C

B

A

4321

Benennung


Datum

Von

Blatt

von

Werkstoff Gewicht

Maßstab 1:10 Det. Maßstab




ArtikelNr.

Schu

tzverm

erk IS

O 16

016 b

each

ten

DIN ISO 2768 -c


RA

24.4.2014

PEP 005/2014-

819440

Hydraulikmodul HMD2 rev 150859Maßbild


A Front viewD Side view from right

The hydraulic module is installed in the heating flow!

Pos. Designation Dim.1 Control element2 Penetrations for electric/sensor cables3 Return flow sensor approx. 5.5 m from unit4 Heating water inlet (from heat pump 2) Rp 1" IG5 Heating water outlet (flow) Rp 1¼" IG6 Heizwasser Eintritt (von Wärmepumpe 1) Rp 1" IG

HMD 2/R(S)E Dimensioned drawings


250 250 69

470

2

15

12

1

2

Legende: D819443 Alle Maße in mm. Bohrung 12 für Dübel (im Beipack)

87654321



1

1

Ers. d. Ers. f.

A

B

C

D

E

F F

E

D

C

B

A

4321

Benennung


Datum

Von

Blatt

von

Werkstoff Gewicht

Maßstab 1:10 1:5Det. Maßstab




ArtikelNr.

Schu

tzverm

erk IS

O 16

016 b

each

ten

DIN ISO 2768 -c

Aepfelbach24.4.2014Aepfelbach11.4.2014

RA

24.4.2014

PEP 005/2014-

819443

Bohrbild für Wandaufhängung HMD2Maßbild

Keys: UK819443All dimensions in mm.Hole Ø 12 for anchor (enclosed in separate package)

Pos. Designation1 Wall mounting rail (in separate package)2 Sheet metal housing

HMD 2/…Drilling pattern


>1350

>200 >600

>17

0

FS

OKF

>50

0 >80

0

FS

Legende: 819441Alle Maße in mm.

OKF Oberkante FertigfussbodenFS Freiraum für Servicezwecke

87654321



1

1

Ers. d. Ers. f.

A

B

C

D

E

F F

E

D

C

B

A

4321

Benennung


Datum

Von

Blatt

von

Werkstoff Gewicht





ArtikelNr.

Schu

tzverm

erk IS

O 16

016 b

each

ten

DIN ISO 2768 -c


RA

23.4.2014

-

819441

Hydraulikmodul HMD 2, nur heizenAufstellungsplan, Mindestabstände


Pos. DesignationOKF Top edge of finished floorFS Free space for service purposes

Installation planHMD 2/(S)E


>200

>1350

>600 >

255

FS

OKF >

500 >

800

FS

Legende: 819442Alle Maße in mm.

OKF Oberkante FertigfussbodenFS Freiraum für Servicezwecke

87654321



1

1

Ers. d. Ers. f.

A

B

C

D

E

F F

E

D

C

B

A

4321

Benennung


Datum

Von

Blatt

von

Werkstoff Gewicht





ArtikelNr.

Schu

tzverm

erk IS

O 16

016 b

each

ten

DIN ISO 2768 -c


RA

23.4.2014

-

819442

Hydraulikmodul rev 150711/12Aufstellungsplan, Mindestabstände


Pos. DesignationOKF Top edge of finished floorFS Free space for service purposes

Installation plan HMD 2/R(S)E


0 Pa

RP

V1T1 LWD 50A

Vnom

V2T2 LWD 70A

Vnom

A1 HVLD 3m

A2 HVLD 3m

AV1 1.200 l/h

AV2 1.600 l/h

D1 3.000 Pa

D2 5.000 Pa

AV 2.800 l/h

21.820 Pa

WP1

WP2

21.820 Pa0,22 bar

RP

Calculation example

WP1 Heat pump 1T1 Type heat pump 1V1 Volume flow heat pump 1

(Vmin, Vnom or Vmax of heat pump 1)A1 Type of connection pipe heat pump 1AV1 Design volume flow heat pump 1D1 Pressure loss of the external

components used WP2 Heat pump 2T2 Type heat pump 2V2 Volume flow heat pump 2

(Vmin, Vnom or Vmax of heat pump 2)A2 Type of connection pipe heat pump 2AV2 Design volume flow heat pump 2D2 Pressure loss of the external

components usedAV Volume flow in joint flowRP Maximum free pressure, which is available

for the pressure loss of the heat sinkCalculation of pressure loss, heat pump 1 (here: LWD 50A)at AV1 of 1,200 l/h

Inherent pressure loss of heat pump 6,000 Pa

+ Inherent pressure loss of connection kit 5,000 Pa

+ Inherent pressure loss of connection pipe HVLD / WDF

1,080 Pa

= Pressure loss, heat pump 1 (at entry into building)

12,080 Pa

Calculation of pressure loss, heat pump 2 (here: LWD 70A)at AV1 of 1,600 l/h

Inherent pressure loss of heat pump 6,000 Pa

+ Inherent pressure loss of connection kit 8,500 Pa

+ Inherent pressure loss of connection pipe HVLD / WDF

1,680 Pa


16,180 Pa

Calculation of RP with LWD 50A + LWD 70APressure loss, heat pump 1 12,080 Pa

+ Pressure loss, external components (D1) 3,000 Pa= Interim result 1 15,080 Pa

Pressure loss, heat pump 2 16,180 Pa+ Pressure loss, external components (D2) 5,000 Pa= Interim result 2 21,180 Pa

Total free pressure, hydraulic module, for heat pump of the more unfavourable interim result

43,000 Pa

– more unfavourable interim result 21,180 Pa= RP 21,820 Pa

Volume flows (V1 / V2) heat pump

T1 / T2V in m³/h

Vmin Vnom VmaxLWD 50A/… 900 1200 1500LWD 70A/… 1200 1600 2000LWD 90A/… 1600 2000 2500

Inherent pressure losses of heat pump

T1 / T2Δp in Pa


Inherent pressure losses of connection kit

T1 / T2Δp in Pa


Inherent pressure losses of connection pipe

T1 / T2Δp in Pa (HVLD/WDF per m)


Total free pressure of hydraulic module

T1 / T2Δp in Pa


Type of connection pipe (A1 / A2)WDF 1m 1HVLD 3m 3HVLD 8m 8HVLD 14m 14HVLD 20m 20


0 Pa

RP

V1T1

V2T2

A1

A2

AV1

AV2

D1

D2

AV

WP1

WP2

RP

*)*)

*)*)

*)

*)

*)

*)

*)

*)

*)

*)

*)

Calculation of your system

Complete all fields and table rows marked with an asterisk *).

1. In the grey field T1, enter the type of your heat pump 1, enter the type of your heat pump 2 in the field T2.

2. When entering the value for V1 and V2, decide whether the dimensioning is to be carried out on the basis of Vmin (approx. 8 K difference), Vnom (5 K difference) or Vmax (approx. 3 K difference). Enter the value for the chosen dimensioning in the field V1 or V2.

3. Enter the design volume flow of heat pump 1 in the field AV 1, the design volume flow of heat pump 2 in the field AV2 and in the respective cal-culation tables.

4. Enter the design volume flow of the external com-ponents in the field AV.

5. Determine the pressure loss of the external com-ponents for heat pump 1 pipe run and enter in field D1.

6. Determine the pressure loss of the external com-ponents for heat pump 2 pipe run and enter in field D2.

7. Enter the inherent pressure loss of heat pump 1 (depending on Vmin, Vnom or Vmax) in calcula-tion table 1 and the inherent pressure loss of heat pump 2 (depending on Vmin, Vnom or Vmax) in cal-culation table 2.

8. Enter the inherent pressure loss of the connection kit of heat pump 1 in calculation table 1 and the in-herent pressure loss of the connection kit of heat pump 2 in calculation table 2 .

9. Enter the type of connection pipe for heat pump 1 in the grey field A1 and the type of connection pipe for heat pump 2 in the grey field A2.

10. Add the inherent pressure losses in the calcula-tion tables to the pressure loss of heat pump 1 and to the pressure loss of heat pump 2.

Calculation table for heat pump 1 pressure loss 1at AV1 of *) l/h

Inherent pressure loss of heat pump *) Pa

+ Inherent pressure loss of connec-tion kit *) Pa

+ Inherent pressure loss of connec-tion pipe HVLD / WDF *) Pa


*) Pa

Calculation table for heat pump 2 pressure loss 1at AV2 of *) l/h

Inherent pressure loss of heat pump *) Pa+ Inherent pressure loss of connec-

tion kit *) Pa

+ Inherent pressure loss of connec-tion pipe HVLD / WDF *) Pa


*) Pa

11. Calculate value RP and enter in the RP fields shown in the above figure.

RP calculationPressure loss, heat pump 1 *) Pa

+ Pressure loss of ext. components (D1) *) Pa= Interim result 1 *) Pa

Pressure loss, heat pump 2 *) Pa+ Pressure loss of ext. Components (D2) *) Pa= Interim result 2 *) PaTotal free pressure, hydraulic module, for heat pump of the more unfavour-able interim result

*) Pa

– more unfavourable interim result *) Pa= RP *) Pa


26 BUP

A

BAB

TAA

1

37

72

7 24

31

1

37

31

O

Z

VL HW

RL HW

RL WW

ZOZ

Keys:VL HW Heating water flow 1 Heat pumpRL WW Hot water return 7 Safety valveZ Shut-off valve closed 24 Pressure gaugeO Shut-off valve open 26 Hot water changeover valve (BUP)

31 Wall penetration37 Wall bracket

TA A Outdoor sensor 72 Wall-mounted buffer tank

Flushing and venting process, hot water circuit

ATTENTION Changeover valve (BUP)

must be open in the direc-tion of the hot water circuit.


26 BUP

A

BAB

TAA

1

37

72

7 24

31

1

37

31

O

Z

VL HW

RL HW

RL WW

ZOZ




Flushing and venting process, heating circuit

ATTENTION Changeover valve (BUP)

must be open in the direc-tion of the heating circuit.


TAA

1

37

72

7 24

31

1

37

31

Z

Z Z

VL HW

RL HW

RL WW

O




Flushing and venting process, heat pump 1


TAA

1

37

72

7 24

31

1

37

31

Z

VL HW

RL HW

RL WW

Z

O Z




Flushing and venting process, heat pump 2


Row tankHMD 2/…


Separate buffer tank and unit variant R (cooling)

HMD 2/…


Lege

nd h

ydra

ulic

dia

gram

m14

0304

1H

eat p

ump

51Se

pera

tion

tank

TA/A

Exte

rnal

sen

sor

2U

nder

floor

hea

ting

/ rad

iato

rs52

Gas

- or o

il-bo

iler

TBW

/BD

omes

tic h

ot w

ater

sen

sor

3Vi

brat

ion

isol

atio

n53

Woo

d bo

iler

TB1/

CFe

edw

ater

sen

sor m

ixer

circ

uits

14

Sylo

mer

stri

p m

achi

ne u

nder

lay

54H

ot w

ater

cyl

inde

rD

Floo

r tm

pera

ture

lim

iter

5C

losu

re a

nd d

rain

age

55Br

ine

pres

sure

sw

itch

TRL/

GSe

nsor

ext

erna

l ret

urn

6Ex

pans

ion

vess

el p

acki

ng li

st56

Swim

min

g po

ol h

eat e

xcha

nger

STA

Line

pre

ssur

e re

gula

tor v

alve

7Sa

fety

val

ve57

Geo

ther

mal

hea

t exc

hang

erTR

L/H

Sens

or re

turn

(hyd

raul

ic m

odul

e, d

ual)

8C

losu

re

58Ve

ntila

tion

syst

em9

Hea

ting

circ

ulat

ion

pum

p59

Plat

e he

at e

xcha

nger

79M

otor

val

ve10

Non

retu

rn v

alve

/ one

way

val

ve61

Coo

ling

cylin

der

80M

ixin

g va

lve

11In

divi

dual

room

regu

latio

n65

Com

pact

dis

tribu

tor

81Sp

lit h

eat p

ump

outd

oor u

nit

12O

verfl

ow v

alve

66Fa

ncoi

ls82

Split

hea

t pum

p in

door

uni

t 13

Stea

mtig

ht in

sula

tion

67So

lar/

serv

ice

wat

er c

ylin

der

83C

ircul

atio

npu

mp

14Se

rvic

e w

ater

circ

ulat

ion

pum

p68

Sola

r/ se

rvic

e w

ater

cyl

inde

r84

Switc

hing

val

ve15

Mix

er c

ircui

t thr

ee-w

ay m

ixer

(MK1

dis

char

ge)

69M

ultif

unct

ion

tank

113

Con

nect

ion

2nd

heat

gen

erat

or

16

Expa

nsio

n ve

ssel

sup

plie

d by

cus

tom

er71

Dua

l hyd

raul

ic m

odul

eBT

1O

utdo

or te

mpe

ratu

re s

enso

r18

Hea

ting

rod

(hea

ting)

72Bu

ffer t

ank

wal

l mou

nted

BT2

Flow

tem

pera

ture

sen

sor

19M

ixer

circ

uit f

our-w

ay m

ixer

(MK1

cha

rge)

73Pi

pe le

ad-in

BT3

Ret

urn

tem

pera

ture

sen

sor

20H

eatin

g ro

d (S

W)

74Ve

ntow

erBT

6D

omes

tic h

ot w

ater

tem

pera

ture

sen

sor

21M

ixer

circ

uit c

ircul

atio

n pu

mp

(FP1

)75

Scop

e of

del

iver

y, h

ydra

ulic

tow

er, d

ual

BT12

Flow

tem

pera

ture

liqu

efie

r23

Feed

circ

ulat

ing

pum

p (re

conn

ect t

he in

tegr

ated

circ

ulat

ing

pum

p in

the

heat

pum

p)76

Fres

h w

ater

sta

tion

BT19

Tem

pera

ture

sen

sor i

mm

ersi

on h

eate

r

24M

anifu

ld77

Scop

e of

sup

ply

wat

er/w

ater

boo

ster

BT24

Tem

pera

ture

sen

sor 2

nd h

eat g

ener

ator

25H

eatin

g ci

rcul

atio

n pu

mp

78Ac

cess

orie

s w

ater

/wat

er b

oost

er o

ptio

nal

26

Switc

hing

val

ve (h

eatin

g/se

rvic

e w

ater

)(B =

nor

mal

ly o

pen)

27H

eatin

g el

emen

t28

Brin

e ci

rcul

atio

n pu

mp

Com

fort

boar

d:29

Dirt

-trap

0.6

mm

mes

h15

Mix

er c

ircui

t thr

ee-w

ay m

ixer

(MK2

-3 d

isch

arge

)30

Spill-

tray

für b

rine

mix

100

Roo

m th

erm

osta

t for

coo

ling

(opt

iona

l)17

Tem

pera

ture

diff

eren

ce re

gula

tor

31W

all b

reak

thro

ugh

101

Con

trols

sup

plie

d by

cus

tom

er19

Mix

er c

ircui

t fou

r-way

mix

er (M

K2 c

harg

e)32

Inle

t pip

e10

2D

ew-p

oint

mon

itor (

optio

nal)

21M

ixer

circ

uit c

ircul

atio

n pu

mp

(FP2

-3)

33Br

ine

man

ifuld

103

Roo

m th

erm

osta

t for

refe

renc

e sp

ace

in p

acki

ng li

st22

Swim

min

g po

ol c

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atin

g pu

mp

34G

roun

d co

llect

or10

4Su

pply

hea

t pum

p44

Thre

e-w

ay m

ixer

val

ve (c

oolin

g fu

nctio

n M

K2)

35G

roun

d sl

inki

es10

5C

oolin

g ci

rcui

t mod

ule

box

rem

ovea

ble

for i

nsta

llatio

n47

C

hang

eove

r val

ve s

wim

min

g ba

th p

repa

ratio

n(B

= no

rmal

ly o

pen)

36G

roun

dwat

er s

prin

g pu

mp

106

Spec

ific

glyc

ole

mix

ture

60C

hang

eove

r val

ve c

oolin

g op

erat

ion(

B =

norm

ally

ope

n)37

Wal

l bra

cket

107

Scal

d pr

otec

tion

/ the

rmos

tatic

mix

er v

alve

62H

eat m

eter

(opt

iona

l)38

Flow

sw

itch

108

Sola

r pum

p as

sem

bly

63C

hang

eove

r val

ve s

olar

circ

uit(B

= n

orm

ally

ope

n)39

Suct

ion

wel

l10

9O

verfl

ow v

alve

mus

t be

clos

ed64

Coo

ling

circ

ulat

ion

pum

p40

Inve

rted

wel

l11

0Pa

ckin

g lis

t hyd

raul

ic to

wer

70So

lar s

eper

atio

n m

odul

e41

Rin

se fi

tting

hea

ting

circ

uit

111

Mou

ntin

g fo

r add

ition

al h

eatin

g el

emen

tTB

2-3/

CFe

edw

ater

sen

sor m

ixer

circ

uits

2-3

42C

ircul

atio

n pu

mp

112

Min

imum

dis

tanc

e to

ther

mal

dec

oupl

ing

of th

e m

ixin

g va

lve

TSS/

ESe

nsor

, tem

pera

ture

diff

eren

ce c

ontro

l (lo

w te

mpe

ratu

re)

43Br

ine

/ Wat

er h

eat e

xcha

nger

(coo

ling

func

tion)

TSK/

ESe

nsor

, tem

pera

ture

diff

eren

ce c

ontro

l (hi

gh te

mpe

ratu

re)

44Th

ree-

way

mix

er v

alve

(coo

ling

func

tion

MK1

)TE

E/F

Sens

or e

xter

nal e

nerg

y so

urce

45C

ap v

alve

46Fi

ller a

nd d

rain

age

valv

e48

Dom

estic

hot

wat

er c

harg

ing

pum

p49

Dire

ctio

n of

gro

undw

ater

flow

50Bu

ffer s

tora

ge

Impo

rtant

not

ice

!

Thes

e hy

drau

lic d

iagr

ams

are

sche

mat

ic re

pres

enta

tions

and

are

for a

ssis

tanc

e on

ly. T

hey

do n

ot re

lieve

of t

he o

blig

atio

n to

car

ry o

ut a

ppro

pria

te p

lann

ing!

The

y do

not

incl

ude

all n

eces

sary

shu

t-off

valv

es, v

entil

ator

fit

tings

or s

afet

y de

vice

s. T

hese

mus

t be

inco

rpor

ated

in a

ccor

danc

e w

ith th

e st

anda

rds

and

regu

latio

ns a

pplic

able

to th

e re

spec

tive

inst

alla

tion.

All

coun

try-s

peci

fic s

tand

ards

, law

s an

d re

gula

tions

mus

t be

obse

rved

! The

tu

bes

have

to b

e di

men

sion

ed a

ccor

ding

to th

e no

min

al v

olum

e flo

w o

f the

hea

t pum

p re

sp. t

he fr

ee p

ress

ing

of th

e in

tegr

ated

circ

ulat

ing

pum

p. F

or d

etai

led

info

rmat

ion

and

advi

ce p

leas

e co

ntac

t our

loca

l sal

es p

artn

er!


UV

Z-VD 1

Z-VD 2

Z-HS

Z-ST

WS

1 2

3

HWE-1 HWE-2

HWA(VL)

Z-1 Z-2

ATTENTION When laying the cable, note that unshielded power supply cables (power supply of outdoor

units) and shielded cables (LINBus) must be laid separately from each other. Minimum spacings for cable laying, Page 13

Keys:UV Electricity subdistribution

Z-VD 1 Supply cable for compressor of heat pump 1

Z-VD 1 Supply cable for compressor of heat pump 2

Z-HS Supply cable for heating element

Z-ST Supply cable for controls

HWE-1 Heating water inlet from heat pump 1

HWE-2 Heating water inlet from heat pump 2

HWA (VL) Heating water outlet (flow)

WS Heat sink

1 Heat pump 1Z-1 Supply cables for heat pump 1

(label each with sticker 1!)1 x Supply cable for compressor1 x Supply cable for controls1 x LINBus connection (Note minimum

distance from compressor and controls supply cable!)

2 Heat pump 2Z-1 Supply cables for heat pump 2

(label each with sticker 2!)1 x Supply cable for compressor1 x Supply cable for controls1 x LINBus connection (Note minimum

distance from compressor and controls supply cable!)

3 Hydraulic module HMD 2/(S)E or HMD 2/R(S)E

Schematic diagram of the electrical connections


-F11

-F12

-F9

-F10

A1

A2

3

-X2

3

-X1

22

11

1P

E

X10

3~N/PE/400V/50Hz

Lin-Bus distrib

utor circuit board

PE

3

X10-2

L3

X8

N

X20

L3

A4

N

IN2

NTC7

LIN-1

PE

13

-X5

-2

A1

1

L2

L1

/ A

PE

A2

OUT5

3-pole miniature circuit-breaker of com

pressor; Attention: C

lockwise

rotary field is absolutely necessary! WP

2

-X5

-1

L1

GND1

OUT7

NTC6

Sub-distribution unit intern

al installation

3~N/PE/400V/50Hz

UK

83

1187

am

ps

ZIP

GND5

M

1~N/PE/230V/50Hz

Pum

p for mixing circuit 1

GND4

FP

1

IN5

L2

/ B

5

N

EV

U

-X1

0

Sensor m

ixing circuit 1

NTC9

IN1

L1

NTC5

NTC1

GND2

PE

OUT2

GND3

GND6

NTC8

OUT1

B

GN

D

L1

L

-X3

-2

HU

P

-X4

BWT

TB1

GND8

N

3

OUT4

GND7

TRL

M

IN5

L1

OUT6

OUT3

FP

1

Cut out a

uxiliary heating

A3

OUT8

IN4

5

NTC2

N

12V

ZU

P

-X3

-1

Auxiliary circulation pum

p

1L2

F12

BU

P

OU

T4

Heat pu

mp 1

HU

P

1L3

NT

C2

OU

T6

MA

1/MIS

IN3

TRL ext.

IN1

OU

T8

NTC4

1N3

Heat pu

mp 2

NTC3

Controller board; A

ttention: I-max =

6A

/230VA

C

OU

T2

IN4

TA

ZW

1

3-pole miniature circuit-breaker of com

pressor; Attention: C

lockwise

rotary field is absolutely necessary! WP

1F

9

2

Lin-2

F10

NT

C8

24

40

0V

po

we

r su

pp

ly

1N2

MZ

1/MIS

4

IN2

X8-2

X10-1

circulation pump

X8-1

OU

T3

A1

NT

C4

X8

NT

C5

5

X20

NT

C3

-X6

A3

TA

1L1

2

1N1

L

Term

inal strip in sw

itch box wall regu

lator; N/P

E distribution for external 2

30V devices

Return sensor

I nfo

rmatio

n o

n fu

se

s c

an

be fo

un

d in

the te

ch

nic

al d

ata

ZU

P

TR

L ext.

OU

T5

A4

Nam

e

Heating circuit circulating pum

p

External return sensor

Safety tem

perature limiter for underfloor heating

, bridge if not available

TB

1

External sensor

F11

ST

B F

BH

Charge/discharge/m

ixer 1 open

IN3

Hot w

ater gauge/therm

ostat

X10

ZIP

PE

BU

P

TR

L

OU

T7

Cut out controller unit

GND9

BW

T

3~N/PE/400V/50Hz

Function

Charge/discharge/m

ixer 1 closed

OU

T1

Leg

en

d:

EV

U1

Diverting valve for dom

estic hot water

Term

inals

Energy supplier contact; close

d on release; bridge if no blocking inte

rval

A2

Control signal of add

itional heat generator

Abbreviation

MIS

EV

U2

27.0

5.2

014

1

A. P

fleger

1/2

Achim

Pfleg

er0

1.04.2

014

Hydraulic m

odule 2831187

12

34

56

78

12

34

56

78

-P

EP

005-2014

Bl vo

n An

z

Nam

e

Datu

m

Zusta

nd

Blatt-N

r.

Bea

rb.

Datu

mÄ

nde

rung

Terminal diagram 400V: LWD … / HMD 2/…


-.F11

-.F12

-.F9

-.F1

0

A1

A2

3

-X2

3

-X1

22

11

Function

23

0V

po

we

r su

pp

ly

OU

T7

OU

T8

1~N/PE/230V/50Hz

BW

T

IN3

BU

P

X10

PE

ZIP

NTC4

Cut out controller unit

1N3

GND9

IN2

IN1

TRL ext.

L

NT

C3

Term

inal strip in sw

itch box wall regu

lator; N/P

E distribution for external 2

30V devices

OU

T2

Control signal of add

itional heat generator

TR

LR

eturn sensor

EV

U1

Info

rmatio

n o

n fu

se

s c

an

be fo

un

d in

the te

ch

nic

al d

ata

TA

A3

Hot w

ater gauge/therm

ostat

TR

L ext.

ZU

P

A2

Abbreviation

EV

U2

NT

C4

Energy supplier contact; close

d on release; bridge if no blocking inte

rval

Term

inals

OU

T1

Charge/discharge/m

ixer 1 closed

Leg

en

d:

Diverting valve for dom

estic hot water

A1

X20

X7-2

Lin-2

X8

-X6

X10-1

3

2

MZ

1/MIS

1N2

NT

C5

2

NT

C8

OU

T3

Miniature circuit-brea

ker, compressor, heat pum

p 1F

9

Controller board; A

ttention: I-max =

6A

/230VA

C

BU

P

F12

TA

Auxiliary circulation pum

p

-X3

-1

OU

T4

IN4

Heat pu

mp 2

HU

P

NTC3

1L3

F10

ZW

1

X7-1

OU

T6

NT

C2

1L2

circulation pump

Heat pu

mp 1

MA

1/MIS

3

GND8

NTC2

IN4

N

TB1

OUT3

3

FP

1

BWT

OUT6

N

MIS

ZU

P

12V

External return sensor

NTC7

IN2

LIN-1

N

A4

OUT4

IN5

M

L1

L2

TRL

L3

B

HU

P

GND7

GN

D-X

10

NTC8

L1

OUT1

EV

U

GND6

PE

NTC1

GND3

OUT2

L

IN1

NTC9

Cut out a

uxiliary heating

OUT8

A3

-X4

3

/ B

L1

N

GND2

Sensor m

ixing circuit 1

NTC5

NTC6

Heating circuit circulating pum

p

GND1

Miniature circuit-brea

ker, compressor, heat pum

p 2

OUT7

L1

-X5

-1-X

3-2

Pum

p for mixing circuit 1

OUT5

PE

L1

L2

F11

TB

1

IN3

External sensor

1N1

2

/ A

OU

T5

Safety tem

perature limiter for underfloor heating

, bridge if not available

1L1

A4

Charge/discharge/m

ixer 1 open

PE

Nam

e

X10

ST

B F

BH

1

X8

M

N

1~N/PE/230V/50Hz

X20

A1

-X5

-2

GND4

Lin-Bus distrib

utor circuit board

A2

PE

UK

83

1187

1

PE

FP

1

1~N/PE/230V/50Hz

1~N/PE/230V/50Hz

IN5

1

Sub-distribution unit intern

al installation

X10-2

am

ps

L3

GND5

ZIP

27.0

5.2

014

2

Achim

Pfleg

er

2/2

Achim

Pfleg

er0

1.04.2

014

Hydraulic m

odule 2

12

34

56

78

12

34

56

78 Bl vo

n An

z

Nam

e

Datu

m

Zusta

nd

Blatt-N

r.

Bea

rb.

Datu

mÄ

nde

rung

230V: LWD ... / HMD 2/… Terminal diagram


1L1

-X10

1L2

1L3

12

-Q5

/3.5

1N1

34

53

1

64

2

-E22

ZW

1

1N2

56

1N3

PE

L1L2

L3N

PE

-X8

L1L2

L3N

PE

L1L2

L3N

PE

-X8

L1L2

L3N

PE

1-X

02

34

LIN 1

/2.15LIN

3/2.15

LIN 2

/2.15

32

1

41

-K11

X8-1

3

3~N

/PE

/400V/50H

z

PE

2

3~N

/PE

/400V/50H

zP

E

4

PE

43

21

E22

Operating m

aterials

X8

UK

81

7400

Control

Pow

er supply aux. heating

K11

ZW

1

Unit co

nnection

Q5

Auxiliary heating

Contactor for auxiliary heating

3~N

/PE

/400V/50H

z

Function

40

0V

po

we

r su

pp

ly

1

X8

Leg

en

d:

X10

Cable

4

Pow

er supply compressor; right-hand rot. field is m

andatory!3~

N/P

E/400V

/50Hz

Pow

er supply, compressor output -->

exte

rnal unitLIN

bus

3~N

/PE

/400V/50H

z

X8-2

LIN

32

PE

27.0

5.2

014

1

Achim

Pfleg

er

1508580

1 - 1508590

1;

1/3

Achim

Pfleg

er1

9.05.2

011

Hydraulikm

odul HM

D 2 400V

_230V817400

12

34

56

78

910

1112

1314

1516

12

34

56

78

910

1112

1314

1516

-P

EP

014/2014

Bl vo

n An

z

Nam

e

Datu

m

Zusta

nd

Blatt-N

r.

Bea

rb.

Datu

mÄ

nde

rung

Circuit diagram 1/3 HMD 2/…


1L1

-X10

1L2

1L3

12

1N1

34

53

1

64

2

-.E2

2Z

W1

1N2

56

1N3

PE

L1L2

L3N

PE

-X8

LN

PE

L1L2

L3N

PE

-X8

LN

PE

1-X

02

34

LIN

1/1.15

,/3.9

LIN

3/1.15

,/3.9

LIN

2/1.15

,/3.9

UK

81

7400

Distribution

box powe

r supply output compresso

r

LIN bus

PE

Cable

Pow

er supply, compressor output -->

exte

rnal unit

-K11

2

Pow

er supply aux. heating

Control

2

1~N

/PE

/230V/50H

z

X7-1

X7-2

PE

1~N

/PE

/230V/50H

z

1P

E

1

1~N

/PE

/230V/50H

z

1~N

/PE

/230V/50H

z2

Function

LIN

Q5

X10

1~N

/PE

/230V/50H

z


2

K11

Auxiliary heating

-Q5

/3.5/3.5

23

0V

po

wer s

up

ply

E22

PE

X8

Unit co

nnection

1

ZW

1

Leg

en

d:

1

Operating m

aterials

X7

27.0

5.2

014

2

Achim

Pfleg

er

1508580

1 - 1508590

1;

2/3

Achim

Pfleg

er2

6.02.2

014

Hydraulikm

odul HM

D 2 400V

_230V817400

12

34

56

78

910

1112

1314

1516

12

34

56

78

910

1112

1314

1516

-P

EP

014/2014

Bl vo

n An

z

Nam

e

Datu

m

Zusta

nd

Blatt-N

r.

Bea

rb.

Datu

mÄ

nde

rung

HMD 2/… Circuit diagram 2/3


PE

NL

L-X

0

L

-X10

NN

PE

PE

L-X

0L

L

IN1

-X3-2

IN3

IN2

1413

-Q55

M1

brbl

PE

brblbk

-M4

HU

P 1

OUT1

-X3

-1

ϑ

-ST

B

A1

A2

-Q5

ZW

1

M1

brbl

PE

brblbk

-M5

HU

P 2

1

-X10

12V

GN

D

/BB

/AA

-X6

12

3P

E

LIN 3

/2.15LIN

2/2.15

LIN 1

/2.15

6-X

11

54

33-X

3

3-X

2

3-X

1

2222

1111

12

3P

E

AIN1

-X9yellow

white

Green

Brown

-B21

AGND1

AOUT1

AIN2

-X9yellow

white

Green

Brown

-B32

AGND2

AOUT2

ϑ

NTC6

-X5

-1

-R5L

TV

L 1

GND6

ϑ

NTC7

-X5

-2

-R6

R

TV

L 2

GND7

ϑ

NTC8

-X5-2

-R4

TR

L

GND8

NTC9

-R9

CW

GND9

12

/1.43

4/1.4

56

/1.414

134

Operating m

aterials

EV

U

X10


ZW

1

Supply term

inals in switchbox of h

ydraulic mo

dule; N

/PE

distribution for external 230V

units

LIN

1

Return sensor

TV

L 1

HU

P 2

Q5

TR

L

Function

Leg

en

d:

R6

UK

81

7400

LIN

2

R4

br

B2

-K30

1~N/P

E/230V

/50Hz

TV

L 2

LIN distributor circuit boa

rd

Flow

sensor 1

EV

U

M4

Controller supply

Controller board; A

ttention: I-max =

6A/230V

AC

1~N

/PE

/230V/50H

z

ST

B

Heating pum

p 1

Energy supplier contact; closed on release; bridge if no blocking interval

CW

R9

Encoding resistor 19.6

kOhm

M5

Flow

sensor 2

X10

K30

-X20

B3

C

blH

UP

1

1

Flow

sensor 1

Safety tem

perature limiter, a

dditional heating

Heating pum

p 2

Flow

sensor 2

X20

R5

26.0

3.2

014

Ach

im P

fleger

3/3

Hydraulikm

odul HM

D 2 400V

_230V

12

34

56

78

910

1112

1314

1516

3

27.05.20

14

12

34

56

78

910

1112

1314

1516

Achim

Pfleg

er

ÄM

Zusta

nd

Index:

Bl vo

n A

nzÄ

nde

rung

Ursp

r.

Blatt-N

r.

Bea

rb.

Datu

mN

ame

Norm

Ers. für

Projekt:

Gepr.

AN

r.

Ers. durch

Datum

Circuit diagram 3/3 HMD 2/…


Item number 1 Item number 210060102 1006010210060202 1006010210060202 1006020210060902 1006010210060902 1006020210060902 1006090210060302 1006030210060402 1006030210060402 1006040210060502 1006050210060602 1006050210060602 1006060210060702 1006070210060802 1006070210060802 10060802

IIA1

ait-deutschland GmbHIndustrie Str. 393359 KasendorfGermany

Module

UK818192

Place, date:

Signature:

Designated position:TÜV-SÜDIndustrie Service GmbH (Nr.:0036)

Company:

EN 61000-3-2/-3-3EN ISO 12100-1/2 EN 55014-1/-2

Kasendorf, 24.07.2019

Jesper StannowHead of Heating Development

EC Directives EN..EN 349

EN 60529

Pressure equipment componentEN 14825

EN 60335-1/-2-40

EN ISO 13857

Category

2014/35/EU 813/20132014/30/EU 814/20132011/65/EG*2014/68/EU

EN 378

LWD 7050A/RX-HMD*LWD 7070A/RX-HMD*LWD 5050A/RSX-HMD*LWD 7050A/RSX-HMD*

Designation of the device(s)

LWD 5050A/RX-HMD*

100601H1002

100602H1402100609H1402100609H1602100609H1802100603H1002

15085801

LWD 7070A/RSX-HMD* 100608H1402

100604H1202100604H1402

EC Declaration of Conformity

150859011508590115085901

150859011508590115085901

150858011508580115085801150858011508580115085801

100605H1002100606H1202

confirms that the following designated device(s) as designed and marketed by us fulfill the standardized EC directives,the EC safety standards and the product-specific EC standards.In the event of modification of the device(s) without our approval, this declaration shall become invalid.

The undersigned

Heat Pump

15085801

LWD 5050A-HMD*

100606H1402100607H1002100608H1202

LWD 9090A-HMD*

LWD 7050A/SX-HMD*LWD 7070A/SX-HMD*

100602H1202

Unit model Item number 3Order number

15085801

LWD 7050A-HMD*LWD 7070A-HMD*LWD 9050A-HMD*LWD 9070A-HMD*

LWD 5050A/SX-HMD*

ait-deutschland GmbHIndustriestrasse 395359 Kasendorf, Germany

E [email protected] www.alpha-innotec.de

alpha innotec – an ait-deutschland GmbH brand

UK

operating manual - mw.ait-group.netmw.ait-group.net/files/docs/en/a0240/83055500.pdf · two dual...

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