Danfoss DHP-R Expansion Module HPC EM User Guide

The TWC function ensures tap water and hot water circulation
maintain high temperatures to prevent legionella bacteria by moving
the switch accordingly.

System Overview:

Heating circuit
Expansion module TWC function

Modular cable
Brine circuit

Hot gas circuit

Expansion Module HPC EM, Shunt Function

The Shunt function maintains the desired temperature for another
heating circuit by moving the switch accordingly.

System Overview:

Shunt valve

Heating circuit 2
Heating circuit 1

Sensor shunt temperature
Circulation pump

Expansion module Shunt function
Modular cable

FAQ:

What are the different functions of the expansion module HPC
EM?

The expansion module HPC EM has three functions: Water Charge
System (WCS), Tap Water Control (TWC), and Shunt Function, each
serving different purposes in managing heating systems.

How do I connect the modular cables to the expansion
module?

To connect the modular cables, match the cable type and length
to the corresponding ports on the expansion module. Ensure a secure
connection for proper functionality.

What is the electrical connection for the expansion module HPC
EM?

The electrical connections include temperature inputs, analogue
outputs, relay signals, and potential-free connections, with
specific functions depending on the mode selected (WCS, TWC,
Shunt).

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Accessories guide DHP-R
Expansion Module HPC EM, Water Charge System Function . . . . . . . . . . . . . . . . .2 Expansion Module HPC EM, Tap Water Control Function. . . . . . . . . . . . . . . . . . . . .3 Expansion module HPC EM, Shunt Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Cooling module HPC CM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Strap on Sensor with Connection Box PT1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Submersible sensor PT1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Modular cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Flow Guard Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Switching Valve for Hot Water, DHP-R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Hot Gas Circuit Circulation Pump Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Room Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Dew Point Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Web Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Router for Web Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Soft Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Electronic Valve Actuator SQS 65.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Valve Actuator ESBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Shunt valves ESBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Flow Adjustment Valve for hot gas circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
VKBMA302

Expansion Module HPC EM, Water Charge System Function

Manufacturer: Abelko

Part number:

086U3395

Area of use The expansion module in WCS function mode manages hot water charging for the hot water heaters.
The WCS function is achieved by moving the switch according to the figure to the side.

System overview

Heating circuit

Heat exchanger

Control valve

Circulation pump

Submersible sensor

return VVX

HWC

Expansion module WCS function
Modular cable

Brine circuit

DHP-R

Hot gas circuit

Accompanying accessories Submersible sensor return VVX, Thermokon-Danelko AKF1004140, part no. 086U3364 One of the following modular cables: Modular cable 0.3 m, part no. 086U4227 Modular cable 1.1 m, part no. 086U4228 Modular cable 10.0 m, part no. 086U4229
Electrical connection WCS Temperature input, T1: Submersible sensor, return VVX Temperature input, T2: Analogue output 0-10V, AO1: Signal to control valve Relay, DO1: Signal to circulation pump, (potential free connection, max 6A)
Other accessories Control valve VVL (2-way), heat exchanger (tap water exchanger), circulation pump.

VKBMA302

Accessories guide

Expansion Module HPC EM, Tap Water Control Function

Manufacturer: Abelko

Part number:

086U3395

Area of use The expansion module in TWC function mode ensures that outgoing tap water and hot water circulation maintain sufficiently high temperatures to prevent legionella bacteria.
The TWC function is achieved by moving the switch according to the figure to the side.

System overview

Heating circuit

Expansion module TWC function

Modular cable

Brine circuit

DHP-R

WH Hot gas circuit

CW HW

Sensor HW heater

HWC

Sensor HW return

Immersion heater

Accompanying accessories 2 x PT1000 strap on sensors with 2 m cable, part no. 086U3365 (regards 1 x sensor) One of the following modular cables: Modular cable 0.3 m, part no. 086U4227 Modular cable 1.1 m, part no. 086U4228 Modular cable 10.0 m, part no. 086U4229
Electrical connection TWC Temperature input, T1: Sensor, HW heater Temperature input, T2: Sensor, HW return Analogue output 0-10V, AO1: Relay, DO1: Signal to immersion heater, hot water (potential free connection, max 6A)
Other accessories –

DHP-R

VKBMA302

Expansion module HPC EM, Shunt Function

Manufacturer: Abelko

Part number:

086U3395

Area of use The expansion module in the Shunt function mode maintains the desired temperature for another heating circuit.
The Shunt function is achieved by moving the switch according to the figure to the side.

System overview
Shunt valve

Heating circuit 2

Heating circuit 1

Sensor shunt temperature Circulation pump

Expansion module Shunt function
Modular cable

Brine circuit

DHP-R

Hot gas circuit

Accompanying accessories 1 x PT1000 strap on sensor part no. 086U3365 One of the following modular cables: Modular cable 0.3 m, part no. 086U4227 Modular cable 1.1 m, part no. 086U4228 Modular cable 10.0 m, part no. 086U4229
Electrical connection Shunt function Temperature input, T1: Sensor, shunt temperature Temperature input, T2: Analogue output 0-10V, AO1: Signal to shunt valve Relay, DO1: Signal to circulation pump, (potential free connection, max 6A)
Other accessories Shunt valve, circulation pump.

VKBMA302

CW HW HWC WH
Accessories guide

Cooling module HPC CM

Manufacturer: Abelko

Part number:

086U3394

Area of use Passive cooling means that coolant circulates through the bore hole and the coolant tank without any heat pump starting. Only circulation pumps for heat transfer fluid are used. The heat from the coolant tank is transported down into the rock. A condition for passive cooling to work is that the coolant is colder than the coolant tank.
Active cooling means that a heat pump starts which then lowers the temperature of the coolant before it enters the coolant tank. If the integral continues to rise, more heat pumps start. The valve for active cooling shifts position and disconnects the borehole. The coolant therefore only circulates through the cooling tank and heat pump so that all produced cooling can be used.
An extra function that can be activated in the cooling module is dew point control. This function is not necessary, but if it is to be activated more information can be found under the accessory Dew point sensor.

DHP-R

VKBMA302

Cooling module cont’d.
System overview

Heating circuit

Dew point sensor

Exchange valve coolant cooler
Sensor, output cooling tank

Control valve cooling circuit
Cooling circuit Sensor cooling tank

Cooling tank

Circulation pump coolant cooler
Cooling fan
Sensor, coolant cooler

Sensor, cooling circuit
Circulation pump cooling circuit

Brine circuit

DHP-R

Cooling module
Modular cable

Exchange valve cooling tank

Exchange valve coolant return

Accompanying accessories 4 x PT1000 strap on sensors with 2 m cable, part no. 086U3365 (regards 1 x sensor) One of the following modular cables: Modular cable 0.3 m, part no. 086U4227 Modular cable 1.1 m, part no. 086U4228 Modular cable 10.0 m, part no. 086U4229 Dew point sensor for wall mounting, part no. 086U3396 (if the dew point function is to be used)
Electrical connection Temperature input, T1: Sensor, cooling tank Temperature input, T2: Sensor, coolant cooler Temperature input, T3: Sensor, output cooling tank Temperature input, T4: Sensor, cooling circuit
Analogue input 0-10V, AI1: Signal from dew point sensor, room temperature 0 – 50°C Analogue input 0-10V, AI2: Signal from dew point sensors, rel. Humidity 0 – 100%
Analogue output 0-10V, AO1: Signal to control valve cooling circuit Analogue output 0-10V, AO2: Signal to cooling fans
Relay 24VAC, DO1: Signal to exchange valve, cooling tank (passive cooling) Relay 24VAC, DO2: Signal to exchange valve, coolant return (active cooling) Relay 24VAC, DO3: Signal to circulation pump coolant cooler Relay 24VAC, DO4: Signal to exchange valve, coolant cooler Relay 24VAC, DO5: Signal to circulation pump, cooling circuit
Other accessories Control valve, exchange valves, circulation pumps.

VKBMA302

Accessories guide

Strap on Sensor with Connection Box PT1000

Manufacturer: Thermokon-Danelko

Part number:

086U3356

Area of use Strap on sensor used in several places in the system to read the temperature. The sensor lies against the pipe and senses temperatures in the range 0-160°.

System overview –

Technical data Resistance table:

Temperature -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ohm 842.7 862.5 882.2 901.9 921.6 941.2 960.8 980.4 1000.0 1019.5 1039.0 1058.5 1077.9 1097.3 1116.7 1136.1 1155.4 1174.7 1194.0 1213.2 1232.4 1251.6 1270.7 1289.9 1309.0 1328.0 1347.1 1366.1 1385.1

DHP-R

VKBMA302

Strap on Sensor with Connection Box PT1000 cont’d
Accompanying accessories –
Installation Tighten the sensor around the pipe using cable tie. Then apply insulation tape/insulation on the outside, depending on the type of pipe.
Electrical connection 15-24VDC/24VAC supply voltage. The strap on sensor is connected to WM HPC, Temperature input T1 or T2 and GND.
Other accessories –

VKBMA302

Accessories guide

Submersible sensor PT1000

Manufacturer: Thermokon-Danelko

Part number:

086U3364

Area of use
Submersible sensor used to read the temperature in the return line from the heat exchanger, see the system image below. The sensor is installed inside the pipe and senses temperatures in the range 0-160°.

System overview

Heat exchanger
Submersible sensor

DHP-R

VKBMA302

Submersible sensor PT1000 cont’d
Technical data Resistance table for submersible sensor:

Temperature -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ohm 842.7 862.5 882.2 901.9 921.6 941.2 960.8 980.4 1000.0 1019.5 1039.0 1058.5 1077.9 1097.3 1116.7 1136.1 1155.4 1174.7 1194.0 1213.2 1232.4 1251.6 1270.7 1289.9 1309.0 1328.0 1347.1 1366.1 1385.1

Accompanying accessories –
Electrical connection The submersible sensor is connected to the heat exchanger return line as close to the heat exchanger as possible. Connected to EM HPC, temperature input T1 and GND.

Other accessories –

VKBMA302

Accessories guide

Modular cables

Manufacturer: Abelko

Part number:

Modular cable 0.3 m: Modular cable 1.1 m: Modular cable 10.0 m: Conductor joint:

086U4227 086U4228 086U4229 086U4230

Area of use The modular cable is a cable that joins the various units. Connections can be made between several heat pumps or between different accessory modules internally in the heat pump. Conductor joint to connect and extend two or more modular cables.
System overview –
Accompanying accessories –
Electrical connection The modular cable is connected to one of the connections Exp.in or Exp.out.
Other accessories –

DHP-R

VKBMA302

Flow Guard Kit Manufacturer: Part number:

IFM 086U3368

Weld nipple

1 LED display 2 Programming button

Area of use The flow guard is an electronic guard that does not contain any moving parts. It is used for ground water or lake water systems and ensures that there is a sufficiently large flow through the heat exchanger.
System overview See accompanying figure.

Supplied accessories Flow guard IFM SI5001, part no. 086U3345 Weld nipple IFM E40113, part no. 086U3367 Connection cable IFM EVC005, part no. 086U3366

Flow guard

Electrical connection The flow guard is connected using the connection cable to the heat pump’s control computer. The three-core connection cable is connected as follows: Brown cable, positive terminal (+), connected to terminal block 147 Blue cable, negative terminal (-), connected to terminal block 148 Black cable, signal in, connected to terminal block 124

Other accessories Heat exchanger

Connection cable

WM HPC

Brine

Hot gas circuit

DHP-R

Heat exchanger Weld nipple Ground water well

VKBMA302

Accessories guide

Switching Valve for Hot Water, DHP-R

Manufacturer: NordiCold

Part number:

086U2471

Area of use The exchange valve is of the ball exchange valve type. It is used to control the flow of hot water to either the heating system or hot water heaters depending on the heating demands.

System overview See accompanying figure.
Supplied accessories Electrical connection The exchange valve’s motor connects to HPC RM, digital output 24 VAC, DO4.
Other accessories –

Technical data

Exchange valve DN 32 internal thread

Valve body

Brass

Ball

Chromed brass

Fluid temperature

0°C to 100°C

Max. Differential pressure 6 bar

Seal valve housing

PTFE

O-rings

EPDM

Exchange valve HW

Heating circuit

Hot water

HPC RM Brine
DHP-R

Hot gas circuit

Motor Supply voltage Output Rotation time Torque Potential free contact Protection class

24V/50Hz 5 VA 15 seconds 6 Nm 5A/230V IP54

DHP-R

VKBMA302

Hot Gas Circuit Circulation Pump Kit

Manufacturer: Wilo

Part number:

086U4233

Area of use The hot gas pump is a circulation pump for the hot gas circuit.

System overview See accompanying figure.
The kit contains the following accessories: 1 x circulation pump Wilo Star RS25/4 3-P, part no. 086U4231
2 x union joints with shut-off, Ø 28 clamp ring RSK 5805928, part no. 086U4232 (refers to 2 x connections)
Electrical connection Hot gas pump connected to terminal block DHP-R according to electrical instruction.
Other accessories Flexible hoses, strainer, valve for adjusting flow.

WM HPC
DHP-R

Flexible hoses

Strainer

Valve

Hot gas circuit
Hot gas pump

VKBMA302

Accessories guide

Room Sensor

Manufacturer: Thermokon-Danelko

Part number:

086U3354

Area of use The room sensor is an active sensor for room temperature. The sensor is wall-mounted.

System overview –
Supplied accessories –
Electrical connection 24VAC supply voltage. The room sensor is connected to WM HPC, analogue input 0-10V, AI1. Measurement range: Temperature: 0 – 50°C.
Other accessories –

DHP-R

VKBMA302

Dew Point Sensor

Manufacturer: Thermokon-Danelko

Part number:

086U3396

Area of use Dew point control is an extra function that ensures that condensation precipitation cannot occur on the cooling circuit. If the temperature and humidity reaches the dew point, the supply set point is adjusted upwards. The sensor is wallmounted.

System overview –
Accompanying accessories –
Electrical connection 24VAC supply voltage. The dew point sensor is connected to HPC CM (cooling module) to the inputs AI1 (temperature) and AI2 (humidity). Measurement range: Rel. humidity: 5 – 95%. Temperature: 0 – 50°C.
Other accessories –

VKBMA302

Accessories guide

Web Access

Manufacturer: Abelko

Part number:

086U3392 (HP1) 086U3393 (HP2-8)

Area of use
Used to monitor the heat pump using a web interface. Alarm notification can occur via SMS or e-mail. The accessory consists of a code that can access the heat pump via the Internet.
Web access HP 1 refers to unlocking heat pump #1 in a system, i.e. master heat pump. This enables full access to heat pump 1 and other connected units in the heat pump, for example expansion modules. Alarm management and statuses for the entire system can be obtained, for example, for slave heat pumps.
Web access HP 2-8 refers to unlocking heat pumps #2 to #8 in a system, i.e. slave heat pumps. This means that the temperatures of all heat pumps can be viewed via the web interface.
Web access can only be used if there is a network connection in the installation area.

System overview –
Accompanying accessories –
Electrical connection –
Other accessories –

DHP-R

VKBMA302

Router for Web Access

Manufacturer: D-Link

Part number:

086U4840

Area of use
Used to connect to the heat pump via the Internet. The router directs the network traffic between the local network where the heat pump is and the Internet. It also limits the amount of incoming traffic from the Internet. The router is pre-configured and ports out 10.0.48.94 and 10.0.48.101 to 10.0.48.109, which means that no settings need to be made at connection.

System overview –
Supplied accessories 10 + 2 metre network cable supplied with router.
Connection The router has a WAN port which is connected to a broadband modem or a broadband socket, see images below. It also has four network sockets for a local network, to which you can connect your heat pumps. If four sockets are not enough, use a switch. The network cable must be connected from the Ethernet socket on WM HPC in the heat pump and to a spare port in the router.

Internet

Modem

Router

WAN port

Internet Modem

Router

WAN port

Other accessories –
18

VKBMA302

Accessories guide

Soft Start

Manufacturer: Kimsafe

Part number:

086U5642

Area of use
Used to limit the current when the heat pump is started. Soft start distributes the current consumption for a few seconds and enables the heat pump to start slower, to prevent current peaks in the electrical network.

System overview –
Technical data The table below shows the current consumption when DHP-R is started with and without soft start.

Heat pump, DHP-R

21H

Starting without soft start (A) 167

Starting with soft start (A) 96

25H

198

106

127

167

198

106

Supplied accessories Panel, screws as well as wiring and cable tie for installation.
Installation The soft starter is installed between the unit cabinet and compressor, according to the overview image to the right. Detailed installation instructions are supplied with the soft starter.
Electrical connection See wiring diagram and installation instructions included with the product.
Other accessories –

Soft Start

DHP-R

VKBMA302

Electronic Valve Actuator SQS 65.5 For WCS function (hot water charging)

Manufacturer: Siemens

Part number:

086U4837

Area of use The valve actuator controls the valve that opens the flow through the heat exchanger for hot water heating. The motor has a 35 second set-up time, DC 0-10 V control signal, AC 24 V supply voltage and mode indication. Manual setting is possible.

System overview

Heating circuit

Control valve

HWC

Brine circuit

DHP-R

Hot gas circuit

Accompanying accessories Control valve VVG 44.25-10 (2-way). For charge output up to 110 kW. Part number 086U3730 or control valve VVG 44.32-16 (2-way). For charge output 110-180 kW. Part number 086U3731

VKBMA302

Accessories guide

Electronic Valve Actuator SQS 65.5 cont’d
Installation Screw the actuator directly onto the valve in the vertical to horizontal position. No adjustments necessary.
Electrical connection Analogue output 0-10V, AO1: Signal to control valve Digital output 24 VAC 2.1, DO1.1: Signal to charge pump Digital output 24 VAC 2.2, DO1.2: Signal to charge pump

24 VAC 2.1

24 VAC 2.2

Exp.in

DO1.1 DO1.2

HPC EM WCS

SQS 65.5
G G0 Y1

Exp.out
0-10V

24 VAC 2.1 24 VAC 2.2

T 1 T 2 AO1 GND

Other accessories –

DHP-R

VKBMA302

Valve Actuator ESBE

Manufacturer: ESBE

Part number:

086U5272

Area of use
Valve actuator that is used to control ESBE shunt valves. Proportional or 3 or 2 step control signal. Manual control also possible.

System overview

Shunt valve 2 Shunt valve 1

Heating circuit 2

Heating circuit 1

Sensor shunt temperature Circulation pump

HWC

Expansion module Shunt function

Brine circuit

DHP-R

Hot gas circuit

Supplied accessories The actuator is supplied with an adapter for connection to the shunt valve, as well as a 1.5 m connection cable.

Technical data
Motor Supply voltage Output Rotation time Protection class

24V AC/DC, 50/60 Hz 5 VA 45/120 seconds IP41

Installation The actuator is installed on the valve using an adapter. Installation instructions supplied with the valve on delivery.

VKBMA302

Accessories guide

Valve Actuator ESBE cont’d
Electrical connection Analogue output 0-10V, AO1: Signal to control valve Electrical connection of shunt valve which is used for auxiliary heat:

24 VAC 2.2 24 VAC 2.1

WM-HPC
AO1 GND

143 144 145 146

ARA659

Electrical connection of shunt valve which is used for sub-shunt group:
M

24 VAC 2.1

24 VAC 2.2

DO1.1 DO1.2

Exp.in
HPC EM WCS

ESBE ARA659
YLN

T1 T2 AO1 GND
24 VAC 2.1 24 VAC 2.2

Exp.out
0-10V
Other accessories –

DHP-R

VKBMA302

Shunt valves ESBE

Manufacturer: ESBE

Part number:

086U5265 086U5266 086U5267 086U5268

3-way shunt valve VRG131 DN20-KVS 6.3 3-way shunt valve VRG131 DN25-KVS 10 3-way shunt valve VRG131 DN32-KVS 16 3-way shunt valve VRG131 DN40-KVS 25

Area of use
ESBE shunt valves are used partly as exchange or distribution valves to control the water flow when using external heat sources, for example, oil-fired boilers (shunt valve in the system image on the previous page). They are also used to control the flow to the sub-shunt groups, i.e. additions to the heating system, and regulate heating or cooling in the radiator and floor heating systems or other similar applications (shunt valve 2 in the system image on the previous page).

System overview See previous section, Valve Actuator ESBE.

Technical data
Shunt valve Valve body Control Fluid temperature Max. Differential pressure O-rings

Dezincification-resistant brass PPS composite -10°C to 130°C 1 bar (mixture) 2 bar (distribution) EPDM

VKBMA302

Accessories guide

Shunt valves ESBE cont’d
The valve that is to be selected is determined partly by the Kvs value, i.e. the capacity value in m³/hours at a pressure drop of 1 bar, and partly by the system that the valve is to serve. For radiator systems, normally select t = 20°C and for floor heating t = 5°C. Suitable pressure drop is 3-15 kPa. To select the correct valve dimension use the diagram below. Start from the output requirement (e.g. = 25 kW) and go vertically to t (e.g. = 15°C). Continue horizontally to the shaded area (pressure drop = 310 kPa) and select the smaller option (e.g. Kvs = 6.3).

Dimensioning the shunt valve for boiler installations
Flow m3/h
100 50

20 10 5

2 1

0.5

0.3

10 20

50 100 200 500

0.2

Output kW

0.5 1

Kvs = 400 280 225 150 90 60 44 28 18 12 8 6.3 4 2.5
2 3 5 10 20 40
Pressure drop kPa

DHP-R

VKBMA302

Shunt valves ESBE cont’d
For control valves, the Kvs value is always given in one (heat conducting) direction. Pressure drop chart

Flow m3/h l/s
200 500
100
200 50

100 20
50 10

10 2
5 1
2 0.5

1
0.2 0.5
0.1

0.2 0.05

0.1

0.02

0.05

0.01

Kvs m3/h 400 280 225 150
90 60 44
28 18
12 8 6.3 4,0
2,5
1.6 1.2 1.0 0.6

5 10 20

50 100

Pressure drop kPa

VKBMA302

Accessories guide

Flow Adjustment Valve for hot gas circuit

Manufacturer: Nordicold

Part number:

086U3757 2-16 l/min

Area of use
The flow adjustment valve is used to adjust the water flow through the hot gas circuit to a suitable low level to optimise the heat pump’s efficiency. The valve that is to be selected is calculated by max 20% of the nominal condenser flow on the heat pump. This valve is selected for the following flows:

DHP-R 21H = DHP-R 25H = DHP-R 20 = DHP-R 26 = DHP-R 35 = DHP-R 42 =

6 l/min 7.2 l/min 6 l/min 7.2 l/min 9.6 l/min 12 l/min

System overview

DHP-R

Flow adjustment valve

VKBMA302

Flow Adjustment Valves for hot gas circuit cont’d

Technical data

Flow adjustment valve Housing and insert Flow gauge Spring O-ring Maximum operating temperature Min operating temperature Max operating temperature Flow accuracy

Brass shockproof and temperature resistant plastic stainless steel EPDM See pressure/temperature diagram -20° see pressure drop chart ±10% over the actual reading

Pressure/temperature diagram

Max operating pressure PB (bar)

12 10 8 6 4 2 0
20

100

Maximum operating temperature TB (°C)

120

VKBMA302

Accessories guide

Flow Adjustment Valves for hot gas circuit cont’d
Pressure drop chart

Pressure drop chart (mbar)

Flow (l/min)
Accompanying accessories –
Installation The valves can be supplied with pipe connections with external thread, soldered connections or clamp ring connections. The group valve can be installed in all positions. To achieve the exact flow a straight pipe piece is recommended (the same length as the valve body) on the supply side. Installation instructions supplied with the valve on delivery.
Electrical connection –
Other accessories –

DHP-R

VKBMA302

VKBMA202

Documents / Resources

Danfoss DHP-R Expansion Module HPC EM [pdf] User Guide
DHP-R, VKBMA302, 086U3395, DHP-R Expansion Module HPC EM, DHP-R, Expansion Module HPC EM, Module HPC EM, HPC EM

References

User Manual

Danfoss DHP-R Expansion Module HPC EM User Guide

DHP-R Expansion Module HPC EM

Specifications:

Product Usage Instructions:

Expansion Module HPC EM, Water Charge System Function

Expansion Module HPC EM, Tap Water Control Function

Expansion Module HPC EM, Shunt Function

FAQ:

What are the different functions of the expansion module HPC
EM?

How do I connect the modular cables to the expansion
module?

What is the electrical connection for the expansion module HPC
EM?

Documents / Resources

References

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