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




Water Out (°C)

Timesec.)

7

6

5

Th

erm

osta

t D

iffe

ren

ce

LessWater

MoreWater




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:



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:



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




Water Out (°C)

Timesec.)

240

Cooling21 kW

Heat Up:21 kW

Th

erm

osta

t D

iffe

ren

ce

Anti Recycling Timer

Compressor Off




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:



Example: EUWA20HZ


Capacity Steps: 0 - 50 - 100%



Load: 21 kW




Compressor 1 can operate continuously

Compressor 2 is continuously switched off

Capacity = Load

Constant Temperature is obtained no buffer tank needed




Water Out (°C)

Timesec.)

240

Th

erm

osta

t D

iffe

ren

ce


Compressor Off




Example: EUWA20HZ


Capacity Steps: 0 - 50 - 100%



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






Water Out (°C)

Timesec.)

240

Cooling10,5 kW

Heat Up:10,5 kW

Th

erm

osta

t D

iffe

ren

ce


Compressor Off

Compressor 1 On Compressor 2 On



V = 10500 W * 60 s

4186 J/kg°C* 1,5 °C

V = 100 l


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 !


Water OutletWater Outlet

Water InletWater Inlet

Outlook


Outlook

Air PurgeAir Purge

Pressure portPressure port

(On the same side asthe regulating valve)


Outlook

Pressure GaugePressure GaugeSafety ValveSafety Valve

Pressure regulating Shut-off valve

Pressure regulating Shut-off valve

Pressure portPressure port


Outlook

Water INLET andShut-Off valveWater INLET andShut-Off valve

Drain PlugDrain Plug


ForFreeze-up Protection

ForFreeze-up Protection

Outlook

Main SwitchManual - O - Auto

Main SwitchManual - O - Auto


Field Wiring

Standard : 6 Core

Outlook

Thermal ProtectorThermal ProtectorPump RelayPump Relay


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

hydraulic kit (pump and tank) pictures from prototype

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