hydraulic kit (pump and tank) pictures from prototype

Hydraulic Kit (pump and tank)

Pictures from prototype

Main CharacteristicsMain Characteristics

Size and shape = 5 HP unitSize and shape = 5 HP unit

100 litre tank for all models100 litre tank for all models

Separate power supplySeparate power supply

Anti Freeze protectionAnti Freeze protection

Hydraulic Kit (pump and tank)

100 litre tank for all models ?100 litre tank for all models ?

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Q x 1000 x t x d x Cw x n

V =

Q = Cooling Capacity at the lowest capacity step (W)Q = Cooling Capacity at the lowest capacity step (W)

t = Anti-recycling time of the compressor (s)t = Anti-recycling time of the compressor (s)

= Specific mass of the fluid (kg/m³) = Specific mass of the fluid (kg/m³)

d = Thermostat difference (step length) (°C)d = Thermostat difference (step length) (°C)

Cw = Specific heat of the fluid (J/kg°C) (4186 for water)Cw = Specific heat of the fluid (J/kg°C) (4186 for water)

n = Nr of compressors that can work independentlyn = Nr of compressors that can work independently

100 litre tank for all models ?100 litre tank for all models ?

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Water Out (°C)

Timesec.)

7

6

5

Th

erm

osta

t D

iffe

ren

ce

LessWater

MoreWater

100 litre tank for all models ?100 litre tank for all models ?

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Water Out (°C)

Timesec.)

7

6

5

Th

erm

osta

t D

iffe

ren

ce Water Volume should be selectedto cope with the anti-recycling timerof the compressor

240Anti Recycling Timer

Compressor On Compressor On

Only 1 compressor:Only 1 compressor:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Example: EUWA20HZ

Nominal Cooling Capacity: 42 kW

Capacity Step: 0 - 100%

Thermostat Difference: 1,5 °C

Anti Recycling Timer: 240’’

Load: 21 kW

Only half the capacity of the chiller is required…

For 1 compressor:For 1 compressor:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

During On - mode:

During Off - mode:

System will cool down with a capacity of21 kW

System will heat up with a capacity of- 21 kW

For 1 compressor:For 1 compressor:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Water Out (°C)

Timesec.)

240

Cooling21 kW

Heat Up:21 kW

Th

erm

osta

t D

iffe

ren

ce

Anti Recycling Timer

Compressor Off

For 1 compressor:For 1 compressor:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Out of the formula Q = m * c * T

Q = m / ( t) * c * T

m = (Q * t) / (c * T)m = * Vcwater = 4186 J/kg°C

V = 21000 W * 120 s4186 J/kg°C* 1,5 °C

V = 400 l

For 2 compressors:For 2 compressors:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Example: EUWA20HZ

Nominal Cooling Capacity: 42 kW

Capacity Steps: 0 - 50 - 100%

Thermostat Difference: 1,5 °C

Anti Recycling Timer: 240’’

Load: 21 kW

For 2 compressors:For 2 compressors:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Compressor 1 can operate continuously

Compressor 2 is continuously switched off

Capacity = Load

Constant Temperature is obtained no buffer tank needed

For 2 compressors:For 2 compressors:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Water Out (°C)

Timesec.)

240

Th

erm

osta

t D

iffe

ren

ce

Anti Recycling Timer

Compressor Off

For 2 compressors:For 2 compressors:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Example: EUWA20HZ

Nominal Cooling Capacity: 42 kW

Capacity Steps: 0 - 50 - 100%

Thermostat Difference: 1,5 °C

Anti Recycling Timer: 240’’

Load: 10,5 kW

For 2 compressors:For 2 compressors:Auto lead - lag switching

1 2

1

2

2

1

1 2

CAPACITY LOAD

21 kW 10,5 kWCooling Down

0 kW - 10,5 kWHeating Up

21 kW 10,5 kWCooling Down

0 kW - 10,5 kWHeating Up

On Off

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

For 2 compressors:For 2 compressors:

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

Water Out (°C)

Timesec.)

240

Cooling10,5 kW

Heat Up:10,5 kW

Th

erm

osta

t D

iffe

ren

ce

Anti Recycling Timer

Compressor Off

Compressor 1 On Compressor 2 On

The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,

is half the time of the anti-recycling time

V = 10500 W * 60 s

4186 J/kg°C* 1,5 °C

V = 100 l

For 2 compressors:For 2 compressors:

10 + 10 + 10

The max. water volume is determined bythe capacity of a 10 Hp compressor

The max. water volume is determined bythe capacity of a 10 Hp compressor

Hydraulic Module

Model Names

EHMC 10 AV1 ( 5 10 HP )

EHMC 15 AV1 (15 HP )

EHMC 30 AV1 ( 20 30 HP)

Model Names

EHMC 10 AV1 ( 5 10 HP )

EHMC 15 AV1 (15 HP )

EHMC 30 AV1 ( 20 30 HP)

Outlook

1284 mm

635 mm724 mmPictures from prototype

Outlook

Modificationto

service panels :

Other Cover !

Pictures from prototype

Water OutletWater Outlet

Water InletWater Inlet

Outlook

Pictures from prototype

Outlook

Air PurgeAir Purge

Pressure portPressure port

(On the same side asthe regulating valve)

Pictures from prototype

Outlook

Pressure GaugePressure GaugeSafety ValveSafety Valve

Pressure regulating Shut-off valve

Pressure regulating Shut-off valve

Pressure portPressure port

Pictures from prototype

Outlook

Water INLET andShut-Off valveWater INLET andShut-Off valve

Drain PlugDrain Plug

Pictures from prototype

ForFreeze-up Protection

ForFreeze-up Protection

Outlook

Main SwitchManual - O - Auto

Main SwitchManual - O - Auto

Pictures from prototype

Field Wiring

Standard : 6 Core

Outlook

Thermal ProtectorThermal ProtectorPump RelayPump Relay

Pictures from prototype

Compatibility

• EHMC 10 AV1– EUWA 5 / 8 /10 H (Z) W1 / T1– EUWY 5 / 8 10 H W1

• EHMC 10 AV1– EUWA 5 / 8 /10 H (Z) W1 / T1– EUWY 5 / 8 10 H W1

• EHMC 15 AV1• EHMC 15 AV1

• EHMC 30 AV1• EHMC 30 AV1

– EUWA 15 H (Z) W1 / T1– EUWY 15 H W1

– EUWA 15 H (Z) W1 / T1– EUWY 15 H W1

– EUWA 20 / 25 / 30 H (Z) W1 / T1– EUWY 20 / 25 / 30 H W1

– EUWA 20 / 25 / 30 H (Z) W1 / T1– EUWY 20 / 25 / 30 H W1

EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1

EUWY 5 / 8 10 H W1EUWY 5 / 8 10 H W1

EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1

InstallationAlongside the chiller or remotelyAlongside the chiller or remotely

A drain pan enables an indoor installationunder all conditions

A drain pan enables an indoor installationunder all conditions

Water inlet is at the same height as the chiller outletWater inlet is at the same height as the chiller outlet

Power supply possible via the chillerPower supply possible via the chiller

Easy hydraulic balancing via pressure regulating valveEasy hydraulic balancing via pressure regulating valve

Options

• 010• 010

• 070• 070

• Freeze-Up Protection

( 200 Watt Heater )

• Freeze-Up Protection

( 200 Watt Heater )

• High Static Pump (30 m H2O)• High Static Pump (30 m H2O)

= Standard