Danfoss DHP-R Operating instructions

Brand: Danfoss

Model: DHP-R

Type: Operating instructions

Danfoss DHP-R is a versatile device that offers a range of features to enhance the functionality of your heating and cooling system. With its expansion module, you can enable warm water loading (WCS), tap water control (TWC), or shunt operation to maintain desired temperatures in different circuits. The cooling module allows for precise control of a cooling system using a pilot valve, facilitating passive or active cooling based on your needs. Additionally, the modular cable options provide flexibility in installation, allowing you to connect the device to various components of your system.

VMBQI102

DHPR

INSTALLATION INSTRUCTIONS

EXPANSION MODULE, HPC EM

COOLING MODULE, HPC CM

VMBQI1022 – Danfoss

VMBQI102

VMBQI102 Danfoss – 3

Table of contents

Installation for WCS function (warm water loading) ... 4

Installation for TWC function (tap water control)...... 6

Installation for Shunt function ....................... 8

Important information!

24 VAC 1 must not be connected together with:

󰂮

 •24VAC2

 •24VDC

 •Otherequipmentthatuses0-10Vcontrolsignal

 •SignalgroundGND

24 VAC 2 must only be used as power supply to:

󰂮

 •Externalequipmentthatrequires0-10Vcontrolsignal

 •Auxiliarymodules

The two separate 24 VAC circuits must never be connected

󰂮

to each other or to protective ground.

The total power load on 24 VAC 1 respectively 24 VAC 2 must

󰂮

notexceed50VA.

VMBQI1024 – Danfoss

VMBQI102

Expansion module, HPC EM

Theoperationaldescriptionfortheexpansionmoduleisavailableinthecontrollermanual.

Installation for WCS function (warm water loading)

Application

TheexpansionmoduleinWCSoperationalmodecontrolswarmwaterloadingofthe

water heaters.

WCS operation is achieved by setting the switch according to the ﬁgure.

Required accessories for installation

Submersiblesensor,Thermokon-DanelkoAKF1004140,itemno.086U3364

One of the following modular cables:

Modularcable0.3m,itemno.086U4227

Modularcable1.1m,itemno.086U4228

Modularcable10.0m,itemno.086U4229

Connectionblock,itemno.086U5121

Other accessories

PilotvalveVVL(2-way),heatexchanger(tapwatervvx),circulationpump.

System image

Heat exchanger

Aheatexchangerisconnectedbetweentheheatpumpandthecirculationforthewaterheatersasdepictedinthesystem

image above.

Circulation pump

Acirculationpumpisconnectedneartheheatexchanger.

Pilot valve

Apilotvalveisconnectedbetweenthecirculationpumpandtheheatexchanger.

Submersible sensor

Asubmersiblesensorisconnectedonthereturnlineoftheheatexchanger,asclosetotheheatexchangeraspossible.

Heat circuit

Hot gas circuit

Cooling agent circuit

VVB VVB VVB VVB

Heatexchanger

Modular cable

Steering valve

Circulation pump

Expansion module

WCS operation

Submersible sensor

return VVX

VVC

DHP-R

VMBQI102

VMBQI102 Danfoss–5

Connecting

󰂮

Note!Themaximumloadmaynotexceed50VA.

Expansion module

Theexpansionmoduleismountedintheelectriccabinetontheintendedrail.Ifthereisnoroom,themodulecanbeinstal-

ledinanexternal,enclosedcabinetandconnectedwithalongermodularcable.

• SettheswitchesonthefrontoftheexpansionmoduletotheWCSposition



• ConnectamodularcablebetweenHPCRMExp.outandHPCEMExp.in

Connections of expansion module for WCS operation:

Temperatureinput,T1:Submersiblesensor(heatexchangerreturnline)

Temperatureinput,T2:-

Analogueoutput0-10V,AO1:Signaltopilotvalve

Relay,DO1:Signaltocirculationpump(no-potentialclosure,maximum6A)

Exp.in:ConnectionfromHPCRM

Exp.out:Connectiontopossibleadditionalmodule.

Submersible sensor



• ConnecttoT1andGND

Circulation pump



• ConnecttoDO1.1to24VAC2.1



• ConnectDO1.2tothecontactorcoil(therelaycoil)andfurtherto24VAC2.2

Pilot valve



• ConnectAO1tothesignalinputofthepilotvalve



• ConnectGNDtopilotvalveGND.IfGNDismissinginthepilotvalve,connectGNDto24VAC2.2somewhereinthe

system. It is most appropriate to jumper terminals 144 and 146 in the controller cabinet.



• ConnectthepilotvalveterminalGto24VAC2.1



• ConnectthepilotvalveterminalG0to24VAC2.2.

•

Exp.in

GGNDG

Exp.out

DO1.1

AO1

GND

DO1.2

HPC EM

WCS

24 VAC 2.1

24 VAC 2.2

alt.

24 VAC 2.1

24 VAC 2.2

AO1

0-10V

Circ. pump

FromExp.out

Submersible sensor

Pilot valve

VMBQI1026 – Danfoss

VMBQI102

Installation for TWC function (tap water control)

Application

In the TWC mode, the expansion module ensures that outgoing hot tap wa- ter

and heat water circulation have a suﬃciently high temperature, to prevent the pre-

sence of Legionella bacteria.

TWC operation is achieved by setting the switch according to the ﬁgure.

Required accessories

2 PT1000 strap-on temperature detectors with 2 m of cable, item no.

086U3365(itemnumbercorrespondsto1transmitter)

One of the following modular cables:

Modularcable0.3m,itemno.086U4227

Modularcable1.1m,itemno.086U4228

Modularcable10.0m,itemno.086U4229

Connectionblock,itemno.086U5121

System image

Sensor, water heater

Astrap-ontemperaturedetectorisconnectedonthesupplylineleadoftheendheater,beforethemixingvalve.

Sensor, hot water return

Astrap-ontemperaturedetectorisconnectedonthe returnleadofthe warmwatercirculation,beforethecirculation

pump.

Heat circuit

Hot gas circuit

Cooling agent circuit

VVB VVB VVB VVB

Modular cable

Sensor, water heater

Electriccartridge

Sensor, hot water return

Expansion module

TWC function

VVC

DHP-R

VMBQI102

VMBQI102 Danfoss–7

Connecting

󰂮

Note!Themaximumloadmaynotexceed50VA.

Expansion module

Theexpansionmoduleismountedintheelectriccabinetontheintendedrail.Ifthereisnoroom,themodulecanbeinstal-

ledinanexternal,enclosedcabinetandconnectedwithalongermodularcable.

• SettheswitchesonthefrontoftheexpansionmoduletotheTWCposition



• ConnectamodularcablebetweenHPCRMExp.outandHPCEMExp.in

Connections of expansion module for TWC operation:

Temperature input, T1: Sensor, water heater

Temperature input, T2: Transmitter, hot water return

Analogueoutput0-10V,AO1:-

Relay,DO1:Signaltoelectriccartridge,hotwater(no-potentialclosure,maximum6A)

Exp.in:ConnectionfromHPCRM

Exp.out:Connectiontopossibleadditionalmodule.

Electric cartridge



• ConnecttoDO1.1to24VAC2.1.



• ConnectDO1.2tothecontactorcoil(therelaycoil)andfurtherto24VAC2.2.

Sensor, water heater



• ConnectthesensorcabletoT1andGND.

Sensor, hot water return



• ConnectthesensorcabletoT2andGND.

Exp.in

Exp.out

DO1.1

AO1

GND

DO1.2

HPC EM

TWC

24 VAC 2.1 24 VAC 2.2

Start signal for

electric cartridge

water heater

Hot water return

FromExp.out

VMBQI1028 – Danfoss

VMBQI102

Installation for Shunt operation

Application

Intheshuntmode,theexpansionmodulemaintainstherequiredtemperaturefora

second heat circuit.

The shunt function is achieved by setting the switch according to the ﬁgure.

Required accessories

1PT1000strap-ontemperaturedetector,itemno.086U3365

One of the following modular cables:

Modularcable0.3m,itemno.086U4227

Modularcable1.1m,itemno.086U4228

Modularcable10.0m,itemno.086U4229

Connectionblock,itemno.086U5121

Other accessories

Shunt valve, circulation pump.

System image

Sensor, shunt temperature

Astrap-ontemperaturedetectorisconnectedonthesupplylineoftheheatcircuit,afterthecirculationpump.

Heat circuit 1

Heat circuit 2

Hot gas circuit

Cooling agent circuit

VVB VVB VVB VVB

Shunt valve

Sensor, shunt temperature

Circulation pump

Modular cable

Expansion module

Shunt function

VVC

DHP-R

VMBQI102

VMBQI102 Danfoss–9

Connecting

󰂮

Note!Themaximumloadmaynotexceed50VA.

Expansion module

Theexpansionmoduleismountedintheelectriccabinetontheintendedrail.Ifthereisnoroom,themodulecanbeinstal-

ledinanexternal,enclosedcabinetandconnectedwithalongermodularcable.

• SettheswitchesonthefrontoftheexpansionmoduletotheShuntposition.



• ConnectamodularcablebetweenHPCRMExp.outandHPCEMExp.in

Connections of expansion module for shunt operation:

Temperature input, T1: Sensor, shunt temperature.

Temperatureinput,T2:-

Analogueoutput0-10V,AO1:Signaltoshuntvalve.

Relay,DO1:Signaltocirculationpump(no-potentialclosure,maximum6A).

Exp.in:ConnectionfromHPCRM.

Exp.out:Connectiontopossibleadditionalmodule.

Sensor, shunt temperature



• ConnecttoT1andGND

Circulation pump



• ConnecttoDO1.1to24VAC2.1.



• ConnectDO1.2tothecontactorcoil(therelaycoil)andfurtherto24VAC2.2.

Shunt valve



• ConnectAO1tothesignalinputofthepilotvalve.



• ConnectGNDtopilotvalveGND.IfGNDismissinginthepilotvalve,connectGNDto24VAC2.2somewhereinthe

system. It is most appropriate to jumper terminals 144 and 146 in the controller cabinet.



• ConnectthepilotvalveterminalGto24VAC2.1.



• ConnectthepilotvalveterminalG0to24VAC2.2.

Exp.in

GGNDG

Exp.out

DO1.1

AO1

GND

DO1.2

HPC EM

Shunt

24 VAC 2.1

24 VAC 2.2

0-10V

alt.

24 VAC 2.1

24 VAC 2.2

AO1

Circ. pump

FromExp.out

Shunt temperature

Shunt valve

VMBQI10210 – Danfoss

VMBQI102

Inputs and outputs, HPC EM

Temperature inputs

Input Shunt TWC WCS

T1 Shunt temperature HW heater temp WCS temperature

T2 – HW return temp –

Analogue outputs

Outputs Shunt TWC WCS

AO1 Control signal – Control signal

Relay outputs

Outputs Shunt TWC WCS

DO1 Circulation pump Heater HW Circulation pump

VMBQI102

VMBQI102 Danfoss – 11

Cooling module, HPC CM

The operational description for the cooling module is available in the controller manual.

Installation

Application

The cooling module controls the temperature of a cooling using a pilot valve. The cold is collected from a cooling tank,

which is cooled with active or passive cold.

Passive cold means that cooling agent ﬂuid is circulated through the drill hole and the cooling tank, without activation

ofanyheatingpump.Onlycirculationpumpsforcoolingagentsareused.Theheatfromthecoolingtankistransported

down into the mountain. An assumption for passive cooling to work is that the cooling agent ﬂuid is colder than the coo-

ling tank.

Active cooling means that a heat pump is activated to lower the temperature of the cooling agent, before it is transferred

into the cooling tank. If the cooling integral continues to rise, more heat pumps are started. The valve for active cooling

changes its mode and disconnects the drill hole. Therefore, the cooling agent only circulates through the cooling tank and

heat pump, so that all the produced cold can be collected.

Additionally, a dew point control function can be activated in the cooling module. This function is not necessary, but if it is

used a dew point sensor must be connected.

Surplus heat produced during active cooling can either be returned to the drill hole or cooled in a coolant cooler. If a

coolant cooler is used, a temperature sensor is connected for the cooler and the coolant module then controls the cooling

fans.

Required accessories

4PT1000contactstrap-ontemperaturedetectorwith2mofcable,itemno.086U3365(itemnumbercorrespondsto1

detector)

One of the following modular cables:

Modularcable0.3m,itemno.086U4227

Modularcable1.1m,itemno.086U4228

Modularcable10.0m,itemno.086U4229

Connectionblock,itemno.086U5121

Dewpointsensorforwallmounting,itemno.086U3396(ifthedewpointfunctionisused)

VMBQI10212 – Danfoss

VMBQI102

System image

Transmitter, cooling tank

Astrap-ontemperaturedetectorisconnectedonthecoolingtankataboutathirdofthetank’sheight.

Transmitter, cooling circuit

Astrap-ontemperaturedetectorisconnectedonthesupplylineofthecoolingcircuit,afterthecirculationpump.

Transmitter, cooling tank outlet

Astrap-ontemperaturedetectorisconnectedonthereturnlineofthecoolingtank.

Transmitter, coolant cooler

Astrap-ontemperaturedetectorisconnectedonthereturnlinefromthecoolantcooler,asclosetothecooleraspos-

sible.

Heat circuit

Cooling agent circuit

Cooling circuit

Cooling tank

DHP-R

Modular cable

Cooling fan

Sensor, coolant cooler

Sensor, cooling tank outlet

Sensor, cooling tank

Dew point sensor

Sensor, cooling circuit

Circulation pump

Coolant cooler

Circulation pump

cooling circuit

Pilot valve

cooling circuit

Reversingvalve,coolingtank

Reversingvalve

cooling agent return

Reversingvalve

surplus heat

Cooling module

VMBQI102

VMBQI102 Danfoss – 13

Connecting

󰂮

Note!Themaximumloadmaynotexceed50VA.

Cooling module

The cooling module is mounted in the electric cabinet on the intended rail. If there is no room, the module can be installed

inanexternal,enclosedcabinetandconnectedwithalongermodularcable.



• ConnectamodularcablebetweenHPCRMExp.outandHPCCMExp.in

Cooling module connections:

Temperature input, T1: Sensor, cooling tank

Temperature input, T2: Sensor, coolant cooler

Temperature input, T3: Sensor, cooling tank outlet

Temperature input, T4: Sensor, cooling circuit

Analogueinput0-10V,AI1:Signalfromdewpointsensor,roomtemperature0-50°C

Analogueinput0-10V,AI2:Signalfromdewpointsensor,relativehumidity0-100%

Analogueoutput0-10V,AO1:Signaltocoolingcircuitpilotvalve

Analogueoutput0-10V,AO2:Signaltocoolingfans

Relay24VAC,DO1:Signaltoreversingvalveagainstcoolingtank(passivecold)

Exp.in Exp.out

GGNDG

DO1

DO2

DO3

DO4

DO5

24VAC

AO1

AI2

GND

AI1

GND

AO2

GND

HPC CM

24 VAC

0-10V

24 VAC

24 VAC 24 VAC

24 VAC 2.1

24 VAC 2.2

24 VAC 2.1

24 VAC 2.2

GNDY

24 VAC 2.1

24 VAC 2.2

AO1

24 VAC 2.2

24 VAC 2.1

DO1,2,4

24 VAC 2.2

Pilot valve,

cooling circuit

Pilot valve,

alternative connection

of cooling circuit

Circ. pump,

coolant cooler

Reversingvalve,

surplus heat

Reversingvalve,

cooling agent return

cooling tank

Alternative connection with

constant voltage feed for

2-point24VACreversingvalve.

Circ. pump,

coolant circuit

Dew point sensor

Cooling fans

FromExp.out

Sensor, cooling tank

Sensor, surplus cooler

Sensor, cooling tank outlet

Sensor, cooling circuit

Roomtemperature

Relativeairhumidity

VMBQI10214 – Danfoss

VMBQI102

Relay24VAC,DO2:Signaltoreversingvalveagainstcoolingagentreturn(activecold)

Relay24VAC,DO3:Signaltocoolantcoolercirculationpump

Relay24VAC,DO4:Signaltoreversingvalve,surplusheat

Relay24VAC,DO5:Signaltocoolingcircuitcirculationpump

Transmitter, cooling tank



• ConnecttoT1andGND

Transmitter, coolant cooler



• ConnecttoT2andGND

Transmitter, cooling tank outlet



• ConnecttoT3andGND

Transmitter, cooling circuit



• ConnecttoT4andGND

Dew point sensor



• Connect to 24 VAC 2.1 and 24 VAC 2.2



• ConnectroomtemperaturesensortoAI1andGND



• ConnectrelativeairhumiditysensortoAI2andGND

Pilot valve, cooling circuit



• ConnectAO1tothesignalinputofthepilotvalve



• ConnectGNDtopilotvalveGND



• ConnectthepilotvalveterminalGto24VAC2.1



• ConnectthepilotvalveterminalG0to24VAC2.2

Cooling fans



• ConnectAO2tothesignalinputofthecoolingfan



• ConnectGNDtothecoolingfanGND

Voltage feed to DO output terminals



• Connect 24 VAC to 24 VAC 2.1



• ConnectG0to24VAC2.2

Reversing valve, cooling tank



• ConnectstartrelaytoDO1andG0

Reversing valve, cooling agent return



• ConnectstartrelaytoDO2andG0

Circulation pump, coolant cooler



• ConnectstartrelaytoDO3andG0

Reversing valve, surplus heat



• ConnectstartrelaytoDO4andG0

Circulation pump, cooling circuit



• ConnectstartrelaytoDO5andG0

Alternative connection of reversing valves:

Whenconstantvoltagefeedtoareversalvalve’s2-point24VACadjusterisrequired,establishdirectconnectionto24VAC

2.1and24VAC2.2.Astartrelayisnotnecessarywhenusinga2-point24VACactuator.

Connectthecontrolsignaltothecorrespondingdigitaloutputterminal,DO1,DO2orDO4.

VMBQI102

VMBQI102 Danfoss–15

Inputs and outputs, HPC CM

Temperature inputs

Input Use Measurement range

T1 Temperature cooling tank -30 to 70 °C

T2 Temp coolant cooler -30 to 70 °C

T3 Temp outlet cooling tank -30 to 70 °C

T4 Temp cooling circuit 0 to 100 °C

Analogue inputs

Input Use

AI1 Room temperature 0 to 50 °C

AI2 Relative humidity 0 to 100 %

Analogue outputs

Outputs Use

AO1 Control valve cooling circuit

AO2 Cooling fans

Relay outputs

Outputs Use

DO1 Valve passive cooling (Exchange valve brine to tank) 24 VAC

DO2 Valve active cooling 24 VAC

DO3 Circulation pump surplus cooler 24 VAC

DO4 Valve surplus heat 24 VAC

DO5 Circulation pump cooling circuit 24 VAC

VMBQI102

Danfoss DHP-R Operating instructions

Danfoss DHP-R Operating instructions

Danfoss DHP-R Operating instructions

Related papers

Other documents