air to water hex unitair to water booster...

For Internal Training

Sales / Technical Guide

Air to Water Booster unit Air to Water HEX unit

MEE08K021New publication effective Sep. 2008

Specifications subject to change without notice

http://Global.MitsubishiElectric.com

Certificate Number EC97J1227

The Air Conditioning & Refrigeration Systems Works acquired environmental management system standard ISO 14001 certification.

The ISO 14000 series is a set of standards applying to environmental protection set by the International Standard Organization (ISO).

FM 33568 / ISO 9001;2000

The Air Conditioning & Refrigeration Systems Works acquired ISO 9001 certification under Series 9000 of the International Standard Organization (ISO) based on a review of Quality , management for the production of refrigeration and air conditioning equipment.

ISO Authorization SystemThe ISO 9000 series is a plant authorization system relating to quality management as stipulated by the ISO. ISO 9001 certifies quality management based on the "design, development, production, installation and auxiliary services" for products built at an authorized plant.

AIR CONDITIONING SYSTEMS

CO

NTEN

TSTHE BASICS1

1-1 What is Booster unit?

1-2 What is HEX unit?

FEATURES2

2-1 Comparison between Booster unit, HEX unit, gas/oil boilers, and electric heaters

2-2 Wide range of applications

2-3 Selecting a model

CONTROL3

3-1 Control options designed for Booster unit and HEX unit

INSTALLATION4

4-1 Installation

Q&A5

5-1 Booster unit/HEX unit Specification and function

5-2 Booster unit/HEX unit Installation and service

5-3 Sales

Reduce CO2 emissions Improve energy performance

Ensure that we heat and cool by the most efficient

means possible.

As a leading manufacturer of energy efficient heat

pump systems, we constantly strive to meet and

exceed the increasing demands placed on our

industry. The drive to reduce energy consumption

and the impact it’s use has on the environment is

crucial and increasingly important to us all. The need

to be more energy conscious and environmentally

responsible has long driven Mitsubishi Electric to

spend huge amounts of resource on researching and

developing the solutions of the future. As market

leaders, at the forefront of the very latest technology,

we pride ourselves in providing high performance

and competitive systems on which you can rely.

Amongst such developments is the advanced heat

pump technology used in Booster unit and HEX unit.

With many people spending much of their time

indoors at home or work, it is not surprising that

buildings account for a large percentage of all

energy use. This means that there is great scope for

reducing energy use through better-designed

buildings and more efficient heating, cooling and

hot-water systems.

NEW TECHNOLOGY

WE NEED TO

1 2

Efficient and technologically advanced, Booster unit takes advantage of proven heat recovery technology to provide hot water for sanitary use and is one of the most advanced, efficient hot water systems available today.

Benefiting from the heat recovery operation of the

CITY MULTI R2 system, Booster unit converts

energy from the air to higher temperatures suitable

for heating water and results in virtually no energy

waste.

With a high COP output achieved, the MITSUBISHI ELECTRIC HEX unit system provides a greater level of comfort, lower CO2 emissions and reduced running costs.

TECHNOLOGY

Capable to air condition and supply hot water in a

single system, Booster unit is ideal for use in a

variety of applications. From hotels to restaurants to

gyms, it works perfectly in providing optimum air

environment and hot water to a maximum of 70˚C.

HIGH EFFICIENCY

HEX unit works perfectly to provide heating and

cooling to water fan coil units, panel heaters, or

under floor heating systems. It benefits from the

high-efficient operation of our CITY MULTI and heat

recovery operation when used with R2 system.

TECHNOLOGY

HEX unit offers 45˚C in heating and down to 8˚C in

cooling, making it suitable for residential properties,

offices or hotels, providing an optimal environment

while benefiting from reduced running costs and

lessening the impact on our environment.

FEATURES

3 4

What is Booster unit?1-1 What is HEX unit?1-2

Booster unit

for R2HEX unit

for Y/R2Pumpwater

Comp.R134a

R410A

TANK

HP

LPLEV

LEV

BC controller

Indoorunit

Indoorunit

Closed loop circuit

Plate Hex.

Plate Hex.

Booster Unit

CITY MULTI

seriesR2

IndoorOutdoor

R410A

LEV

Pump

water

BC controllerR2,Y

Indoorunit

Indoorunit

Closed loop circuit

Plate Hex.

HEX Unit

Floor Heating orPanel Heateror FAN-coil(AHU)

CITY MULTI

series

❈BC controller is only required for the system with R2 series.

IndoorOutdoor

Power sourcekW*1Heating capacitykcal / hBTU / hkWAW.B

*1(Nominal)*1

Power inputCurrent inputOutdoor temp.Temp. range of

W.B-

heatingInlet Water temp.

kW*2Cooling capacitykcal / hBTU / hkWAD.B

*2(Nominal)*2

Power inputCurrent inputOutdoor temp.Temp. range of cooling

D.B-Inlet Water temp.

Total capacityModel / Quantity

Connectableoutdoor unit

Sound pressure level (measured in anechoic room) dB<A>mm(in.)mm(in.)

Diameter of refrigerant pipe

mm(in.)mm(in.)

Diameter of water pipe

mm(in.)

mm

Field drain pipe sizeExternal finishExternal dimension H ✕ W ✕ D

in. kg(lb)Net weight

Circulating waterDesign pressure

WaterR410a

Drawing

Standard attachment

Optional partsRemark

Note: *2 Nominal cooling conditions *1 Nominal heating conditionsOutdoor Temp. : 7˚CDB/6˚CWB (45˚FDB / 43˚FWB) Outdoor Temp. : 35˚CB (95˚FDB)

kcal = kW ✕ 860BTU/h = kW ✕ 3,412

Pipe length : 7.5 m (24-9/16 ft)Pipe length : 7.5 m (24-9/16 ft)Level difference : 0m (0ft)Level difference : 0m (0ft)

cfm = m3/min ✕ 35.31Inlet water Temp 30˚C Water flow rate 2.15m3/h Inlet water Temp 23˚C Water flow rate 1.93m3/h* Install the unit in an environment where the

lb = kg / 0.4536 * Due to continuing improvement, the above specifications may be subject to change without notice.

wet bulb Temp. will not exceed 32degC. * The unit is not designed for outside installations. * Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0˚C or less. * Please always make water circulate or pull out the circulation water completely when not using it.

InletOutlet

Operation Volume Range

LiquidGas

m3/h

MPaMPa

Accessory

ExternalWiringDocument

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, andother items shall be referred to the Installation Manual.

Unit converter

* The specification data is subject to rounding variation.

38,200

10~35˚C (50~95˚F)

0.015

PT3/4 Screw

Installation Manual, Instruction Book

PT3/4 Screw

NO

WKB94L763

0.068 - 0.065 - 0.063

50~100% of outdoor unit capacityPURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)

PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)

PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)PUHY-P200YHM-A(-BS)~PUHY-P450YHM-A(-BS)

PUHY-P500YSHM-A(-BS)~PUHY-P1250YSHM-A(-BS)PUHY-EP200YHM-A(-BS)~PUHY-EP300YHM-A(-BS)

PUHY-EP400YSHM-A(-BS)~PUHY-EP900YSHM-A(-BS)

-5~43˚C (23~110˚F) PURY - series-5~43˚C (23~110˚F) PUHY - series

0.6~2.15

1.00

Strainer, Heat insulation material, 2 ✕ Connector sets

1-phase 220-230-240V 50/60Hz

9,60011.2

29

12.5

800 (785 without legs) ✕ 450 ✕ 300

E00C223

4.15

NONE

10,80042,700

-20~15.5˚C (-4~60˚F) PUHY - series10~40˚C (50~104˚F)

0.0150.068 - 0.065 - 0.063

-20~32˚C (-4~90˚F) PURY - series

31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"35 (78)

* Please do not use it as a drinking water. * Please do not use groundwater and well water.

Model

Power sourcekWHeating capacitykcal / h(Nominal )BTU / hkWAW.B

dB<A>mm(in.) mm(in.)mm(in.)mm(in.)mm(in.)

mmin.kg(lb)

kW

-

Power input

LiquidGas

Current inputOutdoor temp.Inlet Water temp.Total capacity

Temp. range ofheatingConnectableoutdoor unit Model / Quantity

Sound pressure level (measured in anechoic room)Diameter ofrefrigerant pipeDiameter of water pipeField drain pipe sizeExternal finishExternal dimension H ✕ W ✕ D

Net weightCompressor

MakerType

Starting methodMotor output

Circulating waterProtection on Internal circuit(R134a)

High pressure protectionInverter circuit (COMP)CompressorType ✕ original chargeRefrigerantControlR410aDesign pressureR134aWaterExternalDrawing

Standard attachment

Optional partsRemark

Note: *1 Nominal heating conditions Outdoor Temp. : 7˚CDB/6˚CWB (45˚FDB / 43˚FWB) kcal = kW ✕ 860 Pipe length : 7.5 m (24-9/16 ft)

BTU/ h = kW ✕ 3,412 Level difference : 0m (0ft)

cfm = m3/min ✕ 35.31 Inlet water Temp 65˚C Water flow rate 2.15m3/h

lb = kg / 0.4536 * Due to continuing improvement, the above specifications may be subject to change without notice. * Install the unit in an environment where the wet bulb Temp. will not exceed 32degC. * The unit is not designed for outside installations.

* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit.

* Please do not use it as a drinking water.

* Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0˚C or less. * Please always make water circulate or pull out the circulation water completely when not using it. * Please do not use groundwater and well water.

* The specification data is subject to rounding variation.

Unit converter

LubricantOperation volume Range

InletOutlet

Accessory

WiringDocument

m3/h

MPaMPaMPa

Model

1.00


800 (785 without legs) ✕ 450 ✕ 300

E64C226X01

Inverter1.0

Over-heat protection, Over-current protection

R134a ✕ 1.1kg (0.50lb)

10,80012.5

WKB94L762

NONE

44

NO

Strainer, Heat insulation material, 2 ✕ Connector sets

PWFY-P100VM-E-BU1-phase 220-230-240V 50/60Hz

PT3/4 Screw

MITSUBISHI ELECTRIC CORPORATION

NEO22

Inverter rotary hermetic compressor

31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"60 (133)

PT3/4 Screw

11.63 - 11.12 - 10.66

50~100% of outdoor unit capacityPURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)

PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)

PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)

-20~32˚C (59~90˚F)

42,700

10~70˚C (50~158˚F)

2.48

0.6~2.15

LEV 4.15

High pressure sensor, High pressure switch at 3.60 MPa (601 psi)

Discharge thermo protection, Over-current protection

3.60

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, andother items shall be referred to the Installation Manual.

ø9.52 (ø3/8") Brazedø15.88 (ø5/8") Brazed

ø32 (1-1/4")



ø32 (1-1/4") ø32 (1-1/4")

PWFY-P100VM-E-AU PWFY-P200VM-E-AU

10~40˚C (50~104˚F)

0.0150.068 - 0.065 - 0.063

-20~32˚C (-4~90˚F) PURY - series

21,50085,300

-20~15.5˚C (-4~60˚F) PUHY - series

E94C228X01

NONE

1-phase 220-230-240V 50/60Hz

19,30022.4

29

25.0

1.2~4.30

1.00

Strainer, Connecter, Heat insulation material, 2 ✕ Connector sets, Expansion joint

PT 1 Screw


NO

WKB94L763

31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"38 (84)

800 (785 without legs) ✕ 450 ✕ 300

4.15

0.015

PT 1 Screw

0.068 - 0.065 - 0.063

76,400

10~35˚C (50~95˚F)50~100% of outdoor unit capacity

PURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)

PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)PUHY-P200YHM-A(-BS)~PUHY-P450YHM-A(-BS)

PUHY-P500YSHM-A(-BS)~PUHY-P1250YSHM-A(-BS)PUHY-EP200YHM-A(-BS)~PUHY-EP300YHM-A(-BS)

PUHY-EP400YSHM-A(-BS)~PUHY-EP900YSHM-A(-BS)

-5~43˚C (23~110˚F) PURY - series-5~43˚C (23~110˚F) PUHY - series

Comparison among Booster unit, HEX unit, gas/oil boilers, and electric heaters2-1

Gas/oil boiler

System outline

System structure

Maintenance

CO2 emission

Electric heater Booster unit HEX unit

Heats water using the energy released by combustion.

Heats water by immersing an electric heater inside the water tank, which directly heats the water.

Energy saving

Only consumes energy at the time and place where it is needed. Continuous running of the system required to keep load of buffer tank. Efficiency is low as COP of 1, as part of the embedded energy is lost through exhaust and emission losses.

Only consumes energy at the time and place where i t is needed. C o n s u m e d e n e r g y i s e n t i r e l y converted into effective heat at the point of use.Efficiency is low as COP of 1, as part of the embedded energy is lost through exhaust and emission losses.

By utilizing waste heat from the R2 outdoor unit for the booster unit, it is possible to supply hot water with high eff iciency operation.

By Utilizing waste heat from the R2 outdoor unit for heating operation in HEX unit, it is possible to supply hot water with high efficiency. (No efficiency when in cooling or connected with Y series)

Safety

Operation involves combustion. Due to special requirements, a boiler room is necessary. Proper installation is required to ensure safe operation, i.e.ventilation.Due to high voltage, careful handling and installation of power lines are required.

Relatively safe. Due to high voltage, careful handling and installation of power lines are required.

Relatively safe. Due to high voltage, careful handling and installation of power lines are required.If refrigerant leaks, there is a possibility of suffocation.

Relatively safe. Due to high voltage, careful handling and installation of power lines are required.If refrigerant leaks, there is a possibility of suffocation.

Highly efficient, as it utilizes waste heat from cooling to supply hot water.

Highly efficient, as it utilizes waste heat from cooling to supply hot water.

CO2 and NOx will not generate at the installation site.


Regular maintenance and chimney sweeping required.Remote operation and monitoring is possible.

Easy maintenance, no chimney sweeping, no purging of the pipes. Remote operation and monitoring is possible.May require regular replacement of electric heater.

Easy maintenance, no need for regular serv ic ing by an exper t , no ch imney sweeping, no purging of the pipes. Remote operation and monitoring is possible.

Easy maintenance, no need for regular serv ic ing by an exper t , no ch imney sweeping, no purging of the pipes. Remote operation and monitoring is possible.

CO2 and NOx may generate at the installation site. The volume will be larger than an electric system.


5 6

Hot-water cylinder

Heater

Gas, oil etc.

Combustion chamber

Exhaust gas

CO2

NOx

Booster Unit for R2Trans Flux type Hot-water supply

Hot-water supply

Water supply

Water supply

HEX unit for Y/R2

Indoorunit

Hot water supply

Water supply

CITY MULTI

seriesR2

Outdoor

Indoorunit

Hot water supply

Water supply

CITY MULTI

seriesR2

Outdoor

BC controller BC controller

COMP

Outdoor Unit

Boos

ter u

nit

From Outdoor Unit

From Outdoor Unit

Hot water up to 70˚C

High COP operation with heat recovery technology

High COP operation with double inverter technology

HOT water up to 45˚C

Easy operation by remote controller

Both hot and cool water available.(Depends on outdoor unit’s operation mode)

HEX unitProposal examples/Application examples2-2

Hot Water Heating/Cooling

Heating / CoolingFan coil unitsPanel heatersFloor heating

Healthcare facilities　　　Hotels 　　　　　　　Hospitals　　　 Factories　　 Gyms　　　Supermarkets 　　 Apartments 　　　　 Restaurants　　　Offices

Restaurant

Residence

7 8

Selecting a model2-3

(1) Model selection calculation (2) Model selection calculation example

PWFY unit Tank

++

A. For Air conditioning using such as Panel Heaters,

Floor Heating and Fan coil units

Required total heating capacity kW

Safety factor; %

B. For Sanitary use such as Shower and Bathrooms

Conditions

Tank inlet water Temp.; °C

Tank outlet water Temp.; °C

(Set Temp -5 °C)

Safety factor for Heat Loss; %

Operating time; Hours

For Shower; /Person x Person =

(Water Temp. Condition °C)

°C)

For Bathrooms; /Person x Person =

(Water Temp. Condition

(The examples of water volume might be need to be changed as you need.)

The conversion of water volume to °C

x ( - ) / ( - )

+ x ( - ) / ( - )

= /day

Heating Capacity Calculation for sanitary usage

/ 1,000 x ( - ) = M cal / day

The conversion of M cal to kW

/ 860 x 1,000 / = kW

C. Total (A+B)

Total Heating Capacity

x (100%

+x (100%

%) + x (100% %) = kW

D. No. of units required

Safety factor; %

%) / 12.5 kW = units

units are required

4

3 3

33

7

++

A. For Air conditioning using such as Panel Heaters,

Floor Heating and Fan coil units

Required total heating capacity 20

10

10

60

60

15

8

20

30

1,200

240

40

45

1,200

240

40

45

10

10

10

60

60

10

10

888

888

44.4

20

29.42 20

3

2.82

10

20

6.45 15 29.42

8 6.45

60 44.4

kW

Safety factor; %

B. For Sanitary use such as Shower and Bathrooms

Conditions

Tank inlet water Temp.; °C

Tank outlet water Temp.; °C

[ (Set Temp) -5°C ]

Safety factor for Heat Loss; %

Operating time; Hours

For Shower; 60 /Person x Person =

(Water Temp. Condition °C )

°C )

For Bathrooms; 8 /Person x Person =

(Water Temp. Condition

(The examples of water volume might be need to be changed as you need.)

The conversion of water volume to °C

x ( - ) / ( - )

+ x ( - ) / ( - )

= /day

Heating Capacity Calculation for sanitary usage

/1,000 x ( - ) = M cal / day

The conversion of M cal to kW

/ 860 x 1,000 / = kW

C. Total (A+B)

Total Heating Capacity

x (100%

+x (100%

%) + x (100% %) = kW

D. No. of units required

Safety factor; %

%) / 12.5 kW = units

units are required9 10

3-1 Control design for Booster unit and HEX unit

1. External input signal 2. Centralized controller 3. Remote controller

Control priorities

FunctionHeating ECO mode (Dip SW4-3 ON)

Anti freeze mode (Dip SW4-4 ON)Output/Input Functions

TB141A (Output)SymbolOUT1OUT2OUT3OUT4

　 FunctionOperation ON/OFFDefrostCompressorError signal

Outputs the ON/OFF signal Outputs the Defrost signal Outputs the Compressor signalOutputs the Error signal

TB142C (Input)SymbolCOM+IN5 IN6 IN7

IN8 ❈

　 FunctionCommonHot water/HeatingHeating ECOAnti-freezeCooling

Common wiringHot water operationOutlet water temp. will automatically change based on ambient temp. Unit will atutomatically maintain set water temp.Cooling operation

TB142B (Input)Symbol

IN3IN4

　 FunctionConnection demandOperation ON/OFF

Mandatory STOP with demand input ONFor external ON/OFF operation.

Analog inputSymbolCN421CN422

　 FunctionSet water temperatureSet water temperature

Capable with accessory connectorCapable with accessory connector

TB142A (Input)Symbol

IN1　 FunctionPump interlock No setting when shipped from factory. ON=in operation. OFF=invalid.

❈ HEX unit only

❈ CN421 priority

Set temp.

Ta12Ta11

Tf11

Tf12

oudoor temp.

Booster/Hex unit icon shown on AG-150A and TG-2000A screen

Possible to change by remote controller <PAR-W21MAA>

Remote Controller : PAR-W21MAA

Initial setting

Tf11

Tf12

Ta11

Ta12

30˚C40˚C

0˚C10˚C

Measurement point of Water Temp. is available to choose by Dip SW1-1

Control Box

Water Pump

Strainer

Pump interlockOperation signal

Broken lines are fieldsupply products.

Water temperature is changeable by remote controller <PAR-W21MAA>

Heating ECO is for energy saving.When this function is effective, outlet water temp. will automatically change based on ambient temp. Contribute to energy saving by controlling capacity especially in cases where ambient temp. is high and there is low demand for hot water or heating.

Anti freeze mode is to prevent water pipe from freezing.When this function is effective, the un i t w i l l au tomat ica l ly maintain set water temp. (Field supply control board for water pump operation necessary.)

11 12

ON/OFF Runs and stops the operation of a group of unitsSwitches between Hot Water / Heating / Heating ECO / Anti-freeze / Cooling

Operation mode switching ❈ Available operation modes vary depending on the unit to be connected. ❈ Switching limit setting can be made via a remote controller.

Temperature can be set within the ranges below. (in increments of 1˚C or 1˚F)Hot Water 30 / 35 / 40 / 45˚C min. ~ 30 ~ 70˚CHeating (in increments of 1˚C or 2˚F)

Water temperature settingHeating ECO Temperature within the following range can be set depending on the outside air

temperature. 30˚C min. ~ 45˚C max.Anti-freeze 10˚C min. ~ 45˚C max. (in increments of 5˚C or 10˚F)Cooling 10˚C min. ~ 30˚C max. (in increments of 5˚C or 10˚F)

❈ The settable range varies depending on the unit to be connected.Preset temperature range limit Preset temperature range setting can be limited via a remote controller.

10˚C min. ~ 90˚C max.Water temperature display (in increments of 1˚C or 1˚F)

❈ The settable range varies depending on the unit to be connected.

Permit / Prohibit Individually prohibits operations of each local remote control function :ON/OFF, Operation modes,

local operationwater temperature setting, Circulating water replacement warning reset.❈ Upper level controller may not be connected depending on the unit to be connected.

Weekly schedulerON / OFF / Water temperature setting can be done up to 6 times one day in the week.(in increments of a minute)

Error When an error is currently occurring on a unit, the afflicted unit and the error code are displayed.Self check (Error history) Searches the latest error history by pressing the CHECK button twice.

Test runEnables the Test run mode by pressing the TEST button twice.❈ Test run mode is not available depending on the unit to be connected.

Circulating waterDisplays the circulating water replacement warning via the unit message.

replacement warningClears the display by pressing the CIR.WATER button twice.❈ Circulating water replacement warning is not available depending on the unit to be connected.

Language settingThe language on the dot matrix LCD can be changed. (Seven languages)English/German/Spanish/Russian/Italian/French/SwedishRemote controller operation can be locked or unlocked.

Operation locking function ·All-switch locking ·Locking except ON/OFF switch

Item Description Operations Display

The unit must be installed inside a building. The unit is not designed for outdoor installation.

For water pipes, do NOT use steel pipes. Copper pipes are recommended.

Do not touch the unit, the unit surface can be hot.

Back up system is recommended in case of PWFY unit breakdown.

Drain pipeInstall the drain pipe with an inclination of between 1/100 and 1/200 to provide a downward flow of drain water.For cold climate installation, take an appropriate measures (e.g., drain heater) to prevent the drain water from freezing.

StrainerInstall a strainer near the PWFY unit to keep foreign materials from entering the water-side heat exchanger.

Unit [mm]

Piping space (right side)

PWFY

Service space

Top view

Installation image

Example of Water pipe installation

Wall mounted Ceiling Suspended

Floor standing

Counter flow water circuit Parallel flow water circuit

We have no regulation for water flow way. Therefore customers can choose either counter flow or parallel flow due to their demand.

PWFY

PWFY

PWFY

PWFY

13 14

400525

300Hot-blastup to 55°C

600Service space (front side)

* Note: If any medicinal substance is used for Heating (AHU, FCU, Floor Heating, etc), part the water circuit for sanitary use.

Installation4-1

Water-side heat exchanger

Solid arrows in the figure indicate the direction of water flow.

Sample of water circuit for HWS/ATW

PWFY Field supply

Tank Outlet

Inlet

Mains waterWater overflow

Roof

To drain outlet

P

P

T

T

P

PURY-P400YHM-A

BC controller

Cold Water Tank

Cold Water Tank

Hot Water Tank

Cold Water Tank

Hot Water Tank Hot Water Tank

Water Supply

Water Supply

For Cooling(AHU, FCU, etc)

For Heating(AHU, FCU, Floor Heating, etc)

For Sanitaty use(Shower, Bath, etc)

R2

PWFY-P100VM-E-BU PWFY-P100VM-E-BU PWFY-P100VM-E-AU PEFY-P32VMR-E-R PEFY-P63VMS1-E

Mitsubishi Electric Rotary compressors

What kinds of compressors are used in Booster unit?Q1

Booster unit:35˚C-70˚C (95F-158F)

HEX unit :30˚C-45˚C (86F-113F) (Heating)

HEX unit :10˚C-30˚C (50F-86F) (Cooling)

What is the temperature range on controller for heating?Q2

1.0MPa (Maximum range)

What is the hydraulic pressure?Q3

Water pumps are field supplied and need to be selected depending on field system.

Is the water pump embedded?Q4

Booster units and HEX units operate on high COP with heat recovery function (with

R2 system). Booster unit is able to supply high temperature hot water up to 70˚C

without electric heater.

What are the new technologies?Q6

Anti-freeze mode (Dip SW3-4 ON) to prevent water pipe from freezing. When Anti-

freeze mode is effective, the unit will sustain set water temperature. The field supply

control board for water pump interlock is necessary.

What is Anti-freeze?Q7

Heating ECO (Dip SW4-3 ON) is an energy saving function. When this mode is

effective, the outlet water temperature will automatically change based on ambient

temperature.

What is heating Eco?Q8

Remote controller specifications

What are the functions with the controllers?Q10

Short circuiting of TB142A will start the unit

and opening of circuit will stop operation. (non-

voltage A contact)

How do you interlock the pumps?Q5

IN1

TB142A

Q9External analog input

Method Input T(A), T(B)4mA :T(A)

20mA:T(B)

What is external analog input?

S/W default

T(A)=10˚C T(B)=70˚C.

*All setting with a controller.

T(B)˚C

T(A)˚C

4mA 20mAla

ON/OFF

Operation mode switching

Water temperature setting

Preset temperature range

Water temperature display

Permit / Prohibitlocal operation

Weekly scheduler

Error

Self check (Error history)

Test run

Circulating waterreplacement warning

Language setting

Operation locking function

Runs and stops the operation of a group of unitsSwitches between Hot Water / Heating / Heating ECO / Anti-freeze / Cooling* Available operation modes vary depending on the unit to be connected.* Switching limit setting can be made via a remote controller.Temperature can be set within the ranges below. (in increments of 1˚C or 1˚F)Hot Water 35˚C min. ~ 70˚C max. (in increments of 1˚C or 2˚F)Heating 30˚C min. ~ 45˚C max. (in increments of 1˚C or 2˚F)Anti-freeze 10˚C min. ~ 45˚C max. (in increments of 1˚C or 1˚F)Cooling 10˚C min. ~ 30˚C max. (in increments of 1˚C or 1˚F)* The settable range varies depending on the unit to be connected.Preset temperature range setting can be limited via a remote controller.10˚C min. ~ 90˚C max. (in increments of 1˚C or 1˚F)* The settable range varies depending on the unit to be connected.Individually prohibits operations of each local remote control function :ON/OFF, Operation modes,water temperature setting, Circulating water replacement warning reset.* Upper level controller may not be connected depending on the unit to be connected.ON / OFF / Water temperature setting can be done up to 6 times one day in the week.(in increments of a minute)When an error is currently occurring on a unit, the afflicted unit and the error code are displayed.Searches the latest error history by pressing the CHECK button twice.Enables the Test run mode by pressing the TEST button twice.* Test run mode is not available depending on the unit to be connected.Displays the circulating water replacement warning via the unit message.Clears the display by pressing the CIR.WATER button twice.* Circulating water replacement warning is not available depending on the unit to be connected.The language on the dot matrix LCD can be changed. (Seven languages)English/German/Spanish/Russian/Italian/French/SwedishRemote controller operation can be locked or unlocked.. All-switch locking . Locking except ON/OFF switch

Item Description Operations Display

Conversion equation:To=[{T(B) - T(A)}/16] ✕ Ia + [ T(A) - {T(B) - T(A)}/4] To: set temperature, Ia: analogue input value (mA)

Calculation example: T(A)=30˚C, T(B)=70˚C, Ia=10mAConversion equation: To=2.5 ✕ Ia+20 To=45˚C

Changeable with PAR-W21MAA

15 16

Q & A5-1 Q & A5-1Booster unit/HEX unit Specification and function Booster unit/HEX unit Specification and function

Even when the outdoor temperature is low, water temperature of supplied hot water

will not decrease.

Will the temperature of the hot water decrease during winter?Q13

What is the connectable capacity when connecting with standard indoor units? And what is the temperature range of operation for outdoor units?

Q16

R2 outdoor units have a stronger tolerance for high-pressure error when heating

compared to Y series.

Even if the total connectable capacity is 100% or more, PWFY is only connectable

within 100%.

OK R2 + (PWFY: 100%) + (Standard indoor units: 50%) = 150% NG R2 + (PWFY: 130%) + (Standard indoor units: 20%) = 150%

Why can the R2 outdoor units operate at an outdoor temperature of 32˚C when connecting with Booster unit ?

Q17

Yes, it will be shown on the controller display.

In case of malfunction, will the controller show an error?Q14

Yes, it can be connected to the standard indoor models.

Can HEX unit/Booster unit be connected to standard indoor units?Q15

Booster unit :10˚C~70˚C

HEX unit :10˚C~40˚C (Heating) 10˚C~35˚C (Cooling)

What is the water temperature operation range?Q12

Ambient (outdoor) temperature range of heating mode for PWFY combination (WB)

R2 seriesY series

-20~32˚C-20~15.5˚C

-20~15.5˚C-20~15.5˚C

BU, AUAU

-20~32˚C (*1)-20~15.5˚C

Only PWFY PWFY with standard indoor units

Only standardindoor units

ConnectablePWFY type

Connectable outdoor unit capacity range for PWFY combination (WB)

R2 seriesY series

50~100%50~100%

50~150%50~130%

BU, AUAU

50~150%50~130%

Only PWFY PWFY with standard indoor units

Only standardindoor units

ConnectablePWFY type

Refrigerant circuit

CompressorSolenoid valveCheck valveLinear expansion valveStrainerPipesSensor (Temperature sensor, Pressure sensor)Pressure switchDrain panElectronic board

20,000 hours20,000 hours20,000 hours20,000 hours20,000 hours20,000 hours

5 Years25,000 hours

8 Years25,000 hours

Components Replacement cycle

Outdoor unit will change its software to PWFY connection version automatically when PWFY is connected.R2 series allows a higher temperature range than Y series, the reason is that R2 has an effective heat exchanger bypass circuit against high-pressure error.(*1) Some cooling operated by standard indoor units is necessary against high-pressure error, if standard indoor units are to be worked near the high temperature range (32˚C or less).

Refer to the table below for the maintenance schedule.

Replacement cycle may be shortened depending on the usage.

What is the durability of Booster unit and HEX unit?Q11

Water circuit

StrainerWater pipe Water-side heat exchangerRefrigerant-side heat exchanger

10 Years20,000 hours

5 Years5 Years

17 18

Q & A5-1 Q & A5-1Booster unit /HEX unit Specification and function Booster unit /HEX unit Specification and function

The HEX unit/Booster unit can only be installed indoors.

Are there any regulations to installation location?Q1

Controller: Possible with MA wiring.

Output: Possible with setting sequence relay on site.

Is it possible to operate a multiple number of units at the same time?

Q2

Yes. For condensation caused by inlet water temperature.

Is a drain pipe required?Q3

No. Ground water, rain, and sea water cannot be used.

Is it possible to use ground water?Q4

The water circuit must be a closed circuit. (to prevent scaling of pipes, heat

exchanger etc. )

Can a unit be directly connected to mains water?Q5

Copper, stainless steel, polybuten and polyethylene water piping can be used. (it

must withstand 90˚C). Steel piping cannot be used.

If there is a possibility of steel usage in existing equipment, be sure to part the water circuit.

What materials are used for water piping?Q6

For maintenance, sales offices will be able to handle replacements of functional

parts (compressor, heat exchanger, valves). Please refer to the Parts List.

What is a recommended maintenance schedule?Q7

No, we do not recommend hot water for drinking.

The hot water is circulating and not supplied for drinking purposes.

Is the hot water suitable for drinking?Q8

Do not group Booster unit and HEX unit together.

What are the considerations when setting address?

19 20

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TB3TB3

TB02

TB02

TB02

TB5

TB5

TB5

TB5

TB5 TB15 TB5 TB15

TB5TB5

Transmission line

TB15TB15

HEX

HEXHEX

Booster

Q & A5-2Booster unit/ HEX unit Installation and service

5-2 Q & A Booster unit/ HEX unit Installation and service

Q9

It is best for facilities that require a large amount of hot water such as, healthcare

facilities, hotels, hospitals, sports facilities (gyms, golf courses) and restaurants.

What applications are suitable?Q1

Hotels, healthcare facilities, and hospitals: 10-20 people/unit.

* It varies depending on the purposes. Refer to “2-3 Selecting a model” section for

calculation.

How many people can the unit provide hot water for?Q2

Yes, it can be used for both applications.

Can it be used for air conditioning and space heating?Q3

Because of the high efficient heat pump and heat recovery technology.

Why is the running cost low?Q4

Booster unit and HEX unit COP is 3.0 or more and therefore the running cost is 1/3

compared to electric heaters.

What is the difference between ATW Booster unit & HEX unitand electric heaters.

Q5

21

Q & A5-3SalesQ & A

For Internal Training

Sales / Technical Guide

Air to Water Booster unit Air to Water HEX unit

MEE08K021New publication effective Sep. 2008

Specifications subject to change without notice

http://Global.MitsubishiElectric.com

Certificate Number EC97J1227

The Air Conditioning & Refrigeration Systems Works acquired environmental management system standard ISO 14001 certification.

The ISO 14000 series is a set of standards applying to environmental protection set by the International Standard Organization (ISO).

FM 33568 / ISO 9001;2000

The Air Conditioning & Refrigeration Systems Works acquired ISO 9001 certification under Series 9000 of the International Standard Organization (ISO) based on a review of Quality , management for the production of refrigeration and air conditioning equipment.

ISO Authorization SystemThe ISO 9000 series is a plant authorization system relating to quality management as stipulated by the ISO. ISO 9001 certifies quality management based on the "design, development, production, installation and auxiliary services" for products built at an authorized plant.

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