7 heat pump manager

The heat pump manager is necessary for the operation of the heat pump system and is included in the scope of delivery. It regulates a bivalent, monovalent or mono-energetic heating system and monitors the safety devices of the refrigeration circuit. Depending on the type of heat pump, the heat pump manager is built into the housing of the heat pump or the hydro-tower or is supplied as a wall-mounted controller with the heat pump and controls the generator and distribution circuits.

Function overview

• Fulfillment of the requirements of the energy supply company (EVU) e.g. EVU lock, switching cycle lock, see TAB

• Switch-on delay when the mains voltage returns or a utility company blocking time is canceled (10 s to 200 s)

• The heat pump's compressors are switched on a maximum of three times per hour

• Shutdown of the heat pump due to EVU blocking signals with the option of switching on the 2nd heat generator

• Self-adapting defrost cycle time for air-to-water heat pumps

• Monitoring and safeguarding the refrigeration circuit in accordance with DIN 8901 and DIN EN 378

• Recognition of the optimal operating mode in each case, with the greatest possible proportion of heat pumps

• Frost protection function

• Brine pressure switch for installation in the brine circuit in brine / water heat pumps (special accessory)

• Automatic, outside temperature dependent operating mode switchover winter - summer - cooling

• Return temperature-based control of the heating and cooling operation via outside temperature, adjustable fixed value or room temperature.

• Smart-RTC + individual room control with up to 10 room temperature controllers per heating circuit possible

• Control of up to 3 consumer circuits (heating and cooling circuits)

• Dew point-dependent flow temperature control depending on the room temperature and humidity in cooling mode

• Optional dew point monitoring in cooling mode

• Requirement priorities

  • Water heating

  • Heating / cooling mode

  • Swimming pool preparation

• Control of a 2nd heat generator (oil or gas boiler or electrical auxiliary heating)

• Release of a second heat generator for bivalent operation (oil and gas boiler) including control of the associated mixer

• Control of a mixer for the bivalent use of a regenerative heat source (solid fuel boiler, solar thermal)

• Special program for 2nd heat generator to ensure minimum running (oil boiler) or minimum charging times (central storage tank)

• Control of a flange heater for targeted reheating of the hot water with adjustable time programs and for thermal disinfection

• Control of a hot water circulation pump via pulse or time programs

• Energy-efficient defrost management for air / water heat pumps

• Control of circulation pumps in the generator and consumer circuit via an optional 0-10V or PWM signal

• Heat quantity and operating hours recording (not suitable for heating billing)

• User group-dependent operating concept

• 10-fold alarm memory with date and time information and error description

• Interface for the connection of further communication options for LAN, EIB / KNX, Modbus RTU, Modbus TCP, optional accessories required

• Functional heating program (DIN EN 1264-4), standardized or customizable program for targeted drying of the screed with storage of the start and completion times

• Remote control for the heat pump manager via an app for iOS and Android, optional accessories required

• SG-Ready function (Smart-Grid) => also update for new controllers

7.1 Operation

Currently, two control units are used depending on the type of heat pump (see current price list).

7.1.1 Color display with touch operation

The settings required for operation can be made and the displays viewed via the display and control unit.

Fig.7.1: Heat pump manager display with touch display (pGDx)

The settings and advertisements are divided into different user groups.

• operator

• Professional

• service

Access to the user groups is selected via the start screen. Depending on the selected user group, a password may be required for access.

7.1.2 LC display with key operation

• The heat pump manager is operated using 6 push buttons: ESC, mode, menu, , , . Depending on the current display (standard or menu), different functions are assigned to these buttons.

• The operating status of the heat pump and heating system is shown in plain text on the 4 x 20 character LC display (WPM 2007 plus heat pump manager). 6 different operating modes can be selected:
  Cooling, summer, winter, party, vacation, 2nd heat generator, automatic.

• The menu consists of 3 main levels:
  Settings, operating data, history

Fig. 7.2: WPM 2007 plus or WPM EconPlus heat pump manager with separate LC display, standard display with control buttons

7.2 Temperature sensor

Depending on the type of heat pump, the following temperature sensors are already installed or must be installed additionally:

• Outside temperature (R1)

• 1st, 2nd and 3rd heating circuit temperature sensors (R35, R5 and R21)

• Demand sensor (R2.2)

• Hot water temperature sensor (R3)

• Regenerative storage tank temperature sensor (R13)

Tab. 7.1: Nominal sensor values standard NTC-2 and NTC-10 (Carel characteristic) for connection to the heating controller

The temperature sensors to be connected to the heat pump manager must correspond to the sensor curve shown in Fig.7.3. The only exception is the outside temperature sensor included in the scope of delivery of the heat pump (see Fig.7.5)

Fig. 7.3: NTC-10 sensor curve for connection to the heating controller

Fig. 7.4: Dimensions of the NTC 10 heating sensor with metal sleeve

Fig.7.5: Sensor characteristic curve Norm-NTC-2 according to DIN 44574

7.2.1 Installation of the outside temperature sensor

The temperature sensor must be attached in such a way that all weather influences are recorded and the measured value is not falsified.

• Attach to the outside wall of a heated living room and, if possible, on the north or north-west side

• do not mount in a "protected location" (e.g. in a wall niche or under the balcony)

• Do not install near windows, doors, exhaust air vents, outside lights or heat pumps

• Do not expose to direct sunlight at any time of the year

Tab.7.2: Sizing parameters for the sensor line

7.2.2 Mounting the clip-on sensors

The installation of the clip-on sensors is only necessary if they are included in the scope of delivery of the heat pump but not installed.

The clip-on sensors can be mounted as pipe clip-on sensors or inserted into the immersion sleeve of the compact distributor.

• Clean the heating pipe from paint, rust and scale

• Brush the cleaned surface with thermal paste (apply thinly)

• Fasten the sensor with a hose clamp (tighten it well, loose sensors lead to malfunctions) and insulate them thermally

Fig. 7.6: Installation of a pipe wrap sensor

7.3 Heat meter WMZ

general description

The heat meter (WMZ 25) for connection to the heat pump manager is used to record and evaluate the amount of heat given off by the heat pump.

Sensors in the flow and return of the heating water pipe and an electronic module record the measured values and transmit a signal to the heat pump manager, which, depending on the current operating mode of the heat pump (heating / hot water / swimming pool), adds up the amount of heat in kWh and displays it in the menu and history brings. The amount of energy for cooling operation is not recorded.

7.3.1 Hydraulic and electrical integration of the heat meter

The heat meter needs two measuring devices for data acquisition:

• The measuring tube for flow measurement
  This must be installed in the heat pump flow before the hot water preparation branch (note the direction of flow).

• A temperature sensor (copper pipe with immersion sleeve)
  This is to be installed in the heat pump return.

The installation location of the two measuring tubes should be as close as possible to the heat pump in the generator circuit.

Too little distance to pumps, valves and other built-in components should be avoided, as turbulence can lead to falsified heat metering. A calming distance of 50 cm is recommended.

Fig. 7.7: Hydraulic and electrical components of the heat meter

The control board of the electronic module requires its own power supply, which can be tapped directly from the mains or via the terminal strip (mains L / N / PE ~ 230 VAC) of the heat pump manager.

A 2-wire connection cable that transmits the pulse must be connected between terminal X2 / 1/2 of the electronic module and the heat pump manager (N1).

Compact heat pumps

In the case of heat pumps with built-in heating components for an unmixed heating circuit (compact heat pump), it is not possible to install the heat meter inside the heat pump (before the hot water preparation branch). For this reason, the heat meter is installed in the heating flow to record the heating operation. An additional heat meter can be installed in the hot water flow to record optional hot water preparation.

7.3.2 Settings on the heat pump manager

In order to activate the heat quantity recording, the "heat quantity meter" must be programmed to YES in the pre-configuration of the heat pump manager. In the "History" menu, the values for heating, hot water and swimming pool are displayed depending on the system settings. The amount of heat emitted is displayed in kWh.

The counter reading can be reset in the "Operating data" menu!

7.4 Electrical connection work, heat pump and heat pump manager

If a clockwise rotating field cannot be guaranteed, a mains and rotating field monitoring relay must be installed to protect against starting with the wrong direction of rotation. This recognizes an error in the power supply and reports the fault to the heat pump manager via the EVU contact (N1 / ID3 - in series with the EVU blocking contact). This locks the heat pump and prevents it from starting.

7.4.1 Heat pump with WPM Touch

1.) The up to 5-core electrical supply line for the power section of the heat pump is fed into the heat pump from the heat pump's electricity meter via the EVU blocking contactor (if required) (for load voltage, see heat pump instructions). In the power supply for the heat pump, an all-pole disconnection with a contact gap of at least 3 mm (e.g. EVU blocking contactor, power contactor), as well as an all-pole circuit breaker with common tripping of all external conductors, must be provided (tripping current and characteristics according to device information).

2.) The 3-core electrical supply line for the heat pump manager (N1) is routed into the heat pump (devices with integrated controller) or to the subsequent assembly area of the heat pump manager (WPM). The supply line (L / N / PE ~ 230 V, 50 Hz) for the WPM must be connected to permanent voltage and for this reason must be tapped in front of the EVU blocking contactor or connected to the household electricity, otherwise important protective functions during the EVU blocking Are operating.

3.) The EVU blocking contactor (K22) with 3 main contacts (1/3/5 / / 2/4/6) and an auxiliary contact (NO contact e.g. 13/14) must be designed according to the heat pump output and provided on site. The normally open contact of the EVU blocking contactor (13/14) is clamped to plug (1) (= DI1) of function block 0 (gray). CAUTION! Low voltage!

4.) The contactor (K20) for the immersion heater (E10) must be designed for mono-energetic systems (2nd heat generator) according to the heater output and must be provided by the customer. The control (230 V AC) takes place from the heat pump manager via plug (7) (= NO3) of function block 0 (gray) clamped.

5.) The contactor (K21) for the flange heater (E9) in the hot water storage tank must be designed according to the radiator output and provided on site. The control (230 V AC) takes place from the WPM via plug (7) of the defined function block.

6.) The contactors of points 3; 4; 5 are installed in the electrical distribution. The load lines for the radiators are to be designed and secured in accordance with DIN VDE 0100.

7.) The heating circulation pump (M13) is connected to plug (5) (230 V AC) and (8) (control signal) of function block 0 (gray).

8.) The outside sensor (R1) is clamped to plug (3) (= U1) of function block 0 (gray).

7.4.2 Heat pump with WPM EconPlus

1. The 3- or 4-core supply line for the power section of the heat pump is led from the heat pump meter via the EVU blocking contactor (if required) into the heat pump (1L / N / PE ~ 230V, 50Hz or 3L / PE ~ 400V, 50Hz) . Protection according to the current consumption information on the nameplate, by a 3-pole miniature circuit breaker with C characteristics and common tripping of all 3 lanes. Cable cross-section according to DIN VDE 0100

2. The current consumption is stated on the nameplate, through an all-pole circuit breaker of the phases with C characteristic and common tripping of all railways. Cable cross-section according to DIN VDE 0100.

3. The 3-core supply line for the heat pump manager (heating controller N1) is routed into the heat pump (devices with integrated controller) or to the subsequent assembly area of the heat pump manager (WPM).
   The supply line (L / N / PE ~ 230V, 50Hz) for the WPM must be connected to permanent voltage and for this reason must be tapped in front of the EVU blocking contactor or connected to the household electricity, otherwise important protective functions will be out of order during the EVU blocking .

4. The EVU blocking contactor (K22) with 3 main contacts (1/3/5 // 2/4/6) and an auxiliary contact (NO contact 13/14) must be designed according to the heat pump output and provided on site.
   The normally open contact of the EVU blocking contactor (13/14) is looped from terminal strip X3 / G to plug terminal N1-J5 / ID3. CAUTION! Low voltage!

5. The contactor (K20) for the immersion heater (E10) is to be designed for monoenergetic systems (2nd heat exchanger) according to the heater output and to be provided by the customer. The control (230VAC) takes place from the heat pump manager via terminals X1 / N and N1-J13 / NO 4.

6. The contactor (K21) for the flange heater (E9) in the hot water storage tank must be designed according to the radiator output and provided on site. The control (230VAC) takes place from the WPM via the terminals X2 / N and N1-X2 / K21.

7. The contactors of points 3; 4; 5 are built into the electrical distribution. The load lines for the radiators are to be designed and secured in accordance with DIN VDE 0100.

8. The heating circulation pump (M13) is connected to terminals X2 / N and N1-X2 / M13.

9. The hot water charging pump (M18) is connected to terminals X2 / N and N1-X2 / M18.

10. In the case of air / water heat pumps for outdoor installation, the return sensor is integrated and is routed to the heat pump manager via the control line. The return sensor only needs to be installed in the immersion sleeve in the distributor when using a double differential pressure-free distributor. Then the single wires are attached to terminals X3 / GND and X3 / R2.1. The jumper A-R2, which is located between X3 / B2 and X3 / 1 in the delivery state, must then be moved to terminals X3 / 1 and X3 / 2.

11. The outside sensor (R1) is attached to terminals X3 / GND (Ground) and N1-X3 / R1.

12. The hot water sensor (R3) is built into the hot water storage tank and is connected to terminals X3 / GND (ground) and N1-X3 / R3.

7.4.3 Heat pump with WPM 2006 plus / WPM 2007 plus

1. The 4-core supply line for the power section of the heat pump is led from the heat pump meter via the EVU contactor (if required) into the heat pump (3L / PE ~ 400V, 50Hz).
   Protection according to the current consumption information on the nameplate, by a 3-pole miniature circuit breaker with C characteristics and common tripping of all 3 lanes.
   Cable cross-section according to DIN VDE 0100

2. The 3-core supply line for the heat pump manager (heating controller N1) is routed into the heat pump (devices with integrated controller) or to the later installation location of the wall-mounted heat pump manager (WPM).
   The supply line (L / N / PE ~ 230V, 50Hz) for the WPM must be connected to permanent voltage and for this reason must be tapped in front of the EVU blocking contactor or connected to the household electricity, otherwise important protective functions will be out of order during the EVU blocking .

3. The EVU blocking contactor (K22) with 3 main contacts (1/3/5 // 2/4/6) and an auxiliary contact (NO contact 13/14) must be designed according to the heat pump output and provided on site.
   The normally open contact of the EVU blocking contactor (13/14) is looped from terminal strip X2 to plug terminal J5 / ID3. CAUTION! Low voltage!

4. The contactor (K20) for the immersion heater (E10) must be designed for monoenergetic systems (2nd heat exchanger) according to the radiator output and must be provided by the customer. The control (230VAC) takes place from the heat pump manager via terminals X1 / N and J13 / NO 4.

5. The contactor (K21) for the flange heater (E9) in the hot water storage tank must be designed according to the radiator output and provided on site. The control (230VAC) takes place from the WPM via the terminals X1 / N and J16 / NO 10.

6. The contactors of points 3; 4; 5 are built into the electrical distribution. The 5-core load lines (3L / N / PE 400V ~ 50Hz) for the radiators must be designed and secured in accordance with DIN VDE 0100.

7. The heating circulation pump (M13) is connected to terminals X1 / N and J13 / NO 5.

8. The hot water charging pump (M18) is connected to terminals X1 / N and J13 / NO 6.

9. The brine or well pump is connected to terminals X1 / N and J12 / NO 3.
   With air / water heat pumps, a heating circulation pump must never be connected to this output!

10. The return sensor (R2) is integrated in brine and water / water heat pumps or is included. In air / water heat pumps for indoor installation, the return sensor is integrated and is routed to the heat pump manager via two individual wires in the control line. The two single wires are attached to terminals X3 (Ground) and J2 / B2. In the case of air / water heat pumps for outdoor installation, the return sensor must be attached to the common return of the heating and hot water (e.g. immersion sleeve in the compact distributor). The connection to the WPM is also made at the terminals: X3 (Ground) and J2 / B2.

11. The outside sensor (R1) is connected to terminals X3 (Ground) and J2 / B1.

12. The hot water sensor (R3) is built into the hot water storage tank and is connected to terminals X3 (ground) and J2 / B3.

13. The connection between the heat pump (round plug) and the heat pump manager is made via coded control lines that must be ordered separately for heat pumps installed outside. Single wire no. 8 is only to be connected to terminal J4-Y1 for heat pumps with hot gas defrosting.

7.5 Energy efficient circulation pumps

Energy-efficient circulation pumps are wet-running pumps with synchronous motors (direct current motors) that comply with the Ecodesign Directive 2009/125 / EC and, compared to conventional pumps with asynchronous motors, consume up to 70% less electricity with the same pump output.

Energy-efficient circulation pumps have a so-called energy efficiency index (EEI). The smaller the EEI, the less electrical energy the pump uses and the better the energy classification. Pumps that are sold on the market must have at least an EEI index ≤ 0.23 (as of 2020). Pumps with an EEI ≤ 0.2 are also eligible according to BAFA (as of 2020).

Electronically controlled circulation pumps usually have high starting currents, which under certain circumstances can shorten the life of the heat pump manager. For this reason, a coupling relay must be installed between the output of the heat pump manager and the electronically controlled circulation pump.

This is not necessary if the electronically controlled circulation pump does not exceed the maximum permissible operating current of the heat pump manager of 2 A and the maximum permissible starting current of the heat pump manager of 12 A, or if the pump manufacturer has approved it.

Coupling relay

High-efficiency and regulated circulation pumps have high starting currents when they are switched on. To protect the switching contacts on the WPM, a relay is switched between the pump and the WPM in order to decouple the control circuit from the load circuit (flashover resistance).

Fig.7.9: Starting currents for circulating pumps

1 Inrush current peak (microseconds)

Duration less than 1μs

- Cause: EMC filter capacitors

2 Charging current peak (milliseconds)

Duration less than 8ms

- Cause: DC link capacitor

3 Nominal current - operating point of the pump

A coupling relay is not required if the electronically controlled circulation pump does not exceed the maximum permissible operating current of the heat pump manager of 2 A and the maximum permissible starting current of the heat pump manager of 12 A, or if the pump manufacturer has approved it.

4th Connection of coupling relay

Fig.7.10: Connection diagram coupling relay

5 Examples of suitable coupling relays

Fig.7.11: Coupling relay

Difference between energy-efficient circulation pumps (UPH / UP) and electronically controlled circulation pumps (UPE / UP)

UPH / UP are energy-efficient circulation pumps that may be used in the generator circuit of a heating heat pump and must ensure the minimum heating water throughput through the heat pump regardless of the pressure loss.

UPE / UP are electronically controlled circulation pumps for the consumer circuit, which regulate themselves via the system pressure.

UPH pumps can be controlled with a 0-10V signal (VDC) or pulse width modulation (PWM), depending on the pump type. If there is no control signal, a VDC pump does not run, a PWM pump runs at full speed.

7.5.1 Electronically controlled circulation pump for the consumer circuit (M13 / M15)

Electronically controlled circulation pumps for the consumer circuit must be adapted to the heating distribution system (volume flow / pressure loss of the pipes and radiators) of the building. Therefore, directly speed-adjustable, self-regulating (electronically) circulating pumps are advantageous. But pumps with a PWM input signal can also be used if they can be controlled by the heat pump manager. The advantage of this control is that if the signal transmission is disturbed, this pump goes to maximum speed and the building continues to be supplied with heat. Pumps with a 0 - 10 V signal are not recommended, as they switch off in the event of a fault in the signal transmission.

Fig. 7.12: Example for electronically controlled circulation pumps UPE 80-25 (32) PK / UP 75-25 (32) PK with PWM input signal

Fig.7.13: Example of electronically controlled circulation pumps UPH 90-25 (32) / UPE 100-25 (32) K - self-regulating

Depending on the pump type, the following types of pump control are stored:

• 1: Control type: Fixed speed

• 2: Control type Δp-v

• 3: Control type Δp-v

• 4: Control via PWM input signal

7.5.2 Energy-efficient circulation pumps for the generator or brine circuit (M16 / M11)

Generator and brine circuit pumps are energy-efficient circulation pumps that can or must be controlled by the heat pump manager and ensure the minimum heating water throughput through the heat pump in the generator circuit and the heat source throughput in the brine circuit. It is controlled either via a PMW or 0-10 V input signal.

Fig.7.14: Example for generator circuit pumps UPH 120-32PK / UP 75-25 (32) PK with PWM input signal

Fig.7.15: Example for Magna3 brine circuit pumps (e.g. UPH 120-50F) with 0-10V input signal

Comparison of input signals pumps:

0 - 10V signal (VDC)			No speed   without input signal   Control absolutely necessary!
PWM signal (PWM)			Maximum speed   without input signal   Control possible

Tab.7.3: Pumps with input signal 0-10 V (VDC) and PWM (pulse width modulation)

Tab.7.4: Complete overview of circulation pumps (status 11/2021)

7.5.3 Circulation pumps - general information

7.5.3.1 Nomenclature of circulation pumps 

7.5.3.2 Circulation pumps control types:

description	image	Control	Remarks
UPE 70-25 (32) PK		PWM Manually • ∆p-v (proportional pressure) • Constant speed	Can only be used in conjunction with a flow switch in the generator circuit for air / water heat pumps with circuit reversal! Can be used as a brine pump!
UPE 80-25 (32) PK		PWM Manually • ∆p-c (constant pressure) • Constant speed	Can only be used in conjunction with a flow switch in the generator circuit for air / water heat pumps with circuit reversal! Can be used as a brine pump!
UPE 100-25 (32) K UPE 120-32K		Manually • ∆p-c (constant pressure) • ∆p-v (proportional pressure) • Constant speed	Can only be used with a flow switch in the generator circuit of air / water heat pumps with circuit reversal! No control by WPM possible.
UPH 70-25P UPH 80-25P		PWM	No use in the primary circuit! (lower limit of use at 5 ° C)
UPH 60-25 (32)		Manually • ∆p-c (constant pressure) • ∆p-v (proportional pressure) • 3 fixed speed levels	No use in the primary circuit (lower limit of use at 5 ° C) No control by WPM possible!
UPH 90-25 (32)		Manually • ∆p-c (constant pressure) • ∆p-v (proportional pressure)	No control by WPM possible! Can be used as a brine pump!
UPH 120-32PK		PWM Manually • ∆p-c (constant pressure) • ∆p-v (proportional pressure)	Can be used as a brine pump!
UP 75-25 (32) PK		PWM Manually • 4 fixed speed levels	No use in the primary circuit! (lower limit of use at 2 ° C)
UPH 100-25 (32) P. UPH 100-25 (32) V.		PWM 0-10V	UPH 100-32P no longer available from August 2016. UPH 100-25 (32) V no longer available from January 2018.
UPH 80-40F UPH 120-50F		0 -10V Manually • ∆p-c (constant pressure) • ∆p-v (proportional pressure) • 3 fixed speed levels	Can be used as a brine pump!

Tab.7.5: Complete overview of wet-running pumps control types

7.5.3.3 Hydraulic areas of application, circulation pumps

description	image	image	M13	M16	M18	M11	M12 / 17 /…
UPE 70-25 (32) PK UPE 80-25 (32) PK UPE 100-25 (32) K UPE 120-32K			X	X With DFS *	X	X	X
UPH 70-25P			X *	X	X
UPH 80-25P UPH 100-25 (32) P / V			X *   X *	X	X	X	X
UPH 60-25 (32) UP 75-25 (32) PK			X	X	X		X
UPH90-25 (32)			X	X	X	X	X
UPH120-32PK			X	X	X	X	X
UPH 80-40F UPH 120-50F			X	X	X	X	x

* DFS = flow switch

Tab. 7.6: Complete overview of hydraulic integration options for wet-running pumps

7.5.3.4 Operating temperature range for circulating pumps

image	description	Application limits	Insert M11 (brine)
	UPE 70-25 (32) PK UPE 80-25 (32) PK UPE 100-25 (32) K UPE 120-32K	-10-110 ° C	X X X
	UPH 70-25P         UPH 80-25P	5 -95 ° C         -10-95 ° C
			X
	UPH 100-25 (32) P / V	-10-95 ° C	X
	UPH 60-25 (32) UP 75-25 (32) PK	5-110 ° C 2-110 ° C
	UPH 90-25 (32)	-10-95 ° C	X
	UPH 120-32PK	-10-110 ° C	X
	UPH 80-40F UPH 120-50F	-10-110 ° C	X

Tab.7.7: Complete overview of the temperature application range for wet-running pumps

7.5.3.5 Self-regulating circulation pumps according to control types

• ∆p-c (constant pressure)

• ∆p-v (variable pressure)

• Fixed speed

Signal type	Control curve	pump
∆p-c constant pressure		UPE 80-25 (32) PK UPE 100-25 (32) K UPE 120-32K UPH 60-25 (32) UPH 90-25 (32) UPH 120-32PK  UPH 80-40F Magna3 32-120F (PP 32-120F) * Magna3 40-80F (PP40-80F) * Magna3 40-120F (PP40-120F) * Magna3 50-120F (PP50-120f) * Magna3 65-80F (PP65-80F) * Magna3 65-100F (PP65-100F) * Magna3 65-120F (PP65-120F) * Magna3 65-150F (PP65-150F) *
∆p-v pressure variable		UPE 70-25 (32) PK UPE 100-25 (32) K UPE 120-32K UPH 90-25 (32) UPH120-32PK
Fixed speed (Constant speed)		UPE 70-25 (32) PK UPE 80-25 (32) PK UPE 100-25 (32) K UPE 120-32K  UPH 60-25 (32) UPH 80-40F UP 75-25 (32) PK Magna3 32-120F (PP 32-120F) * Magna3 40-80F (PP40-80F) * Magna3 40-120F (PP40-120F) * Magna3 50-120F (PP50-120f) * Magna3 65-80F (PP65-80F) * Magna3 65-100F (PP65-100F) * Magna3 65-120F (PP65-120F) * Magna3 65-150F (PP65-150F) *

Tab.7.8: Control types wet running pumps (self-regulating)

7.5.3.6 Setting the control types

Differential pressure is regulated to a constant value. Delivery head H does not increase with decreasing flow rate	Differential pressure is managed depending on the volume flow.  Delivery head H decreases with decreasing volume flow.
mission	mission
2-pipe heating systems with great consumer authority → HN <2 m	2-pipe heating systems with low consumer authority → HN> 4 m
1-pipe heating with thermostatic or zone valves for different circuits	1-pipe heating with thermostatic valves and high pressure losses
Underfloor heating systems with thermostatic valves	Underfloor heating systems with thermostatic valves and large pressure losses
In primary circuits of systems with low pressure losses in the primary circuit	In primary circuits of systems with high pressure losses in the primary circuit

Tab.7.9: Setting / selection of the control types for wet-running pumps (self-regulating)

7.5.3.7 Circulation pumps with input signal

• Pulse forwarding - "PWM"

• 0-10V input signal - "VDC"

List of circulation pumps that are controlled by the heat pump manager can / have to:

Signal type	image	Control curve	comment	pump
0 - 10V signal                   (VDC)			No rotational speed  without input signal	UPH 100-32V (PP 32-100G) ** UPH 80-40F Magna3 32-120F (PP 32-120F) * Magna3 40-80F (PP40-80F) * Magna3 40-120F (PP40-120F) * Magna3 50-120F (PP50-120f) * Magna3 65-80F (PP65-80F) * Magna3 65-100F (PP65-100F) * Magna3 65-120F (PP65-120F) * Magna3 65-150F (PP65-150F) *
PWM signal                 (PWM)			Maximum rotational speed  without input signal	UPE 70-25PK UPE 70-32PK UPE 80-25PK UPE 80-32PK UP 75-25PK UP 75-32PK UPH 70-25P UPH 80-25P UPH100-25P UPH120-32PK

_{* Included in delivery: SI 75-130TU (M16), SIH 90TU (M16), SI 35-130TU (M11), SIH 90TU (M11), WI 45-180TU (M16), WIH 120TU (M16)}

_{** Included in delivery: SI 26TU –SI 50TU (M16), SI 26TU (M11), SI 35TUR (M16), WI 35-45TU (M16)}

Tab. 7.10: Complete overview of wet-running pumps that must / can be controlled by the heat pump manager.

7.5.4 Circulation pumps - series and pump types UPE / UPH / UP

7.5.4.1 Electrical connection and characteristics

7.5.4.1.1 Circulation pump UPE 70-25 (32) PK

Fig.7.16: Setting options UPE 70-25 (32) PK

Electrical connection

_{Load cable 1.5 m with plug included with the pump, control cable optional (item no .: 452169.41.79)}

Fig.7.17: Electrical connection UPE 70-25 (32) PK

Fig.7.18: Characteristic curves UPE 70-25 (32) PK

7.5.4.1.2 Circulation pump UPE 80-25 (32) PK

(Wilo Para STG 25-180 / 8-75 / SC / I-12)

Self-regulating circulation pump for the Consumer group ... (M13)

Optionally controllable by means of a PWM signal by the heat pump manager !!!

Electrical connection:  

Load cable 1.5 m with Molex plug included with the pump, control cable optional (item no .: 452169.41.79)!

7.5.4.1.3 Characteristic curve UPE 80-25 (32) PK

7.5.4.1.4 Circulation pump UPE 100-35 (32) K / UPE 120-32K

(corresponds to WILO Yonos Para HF 25 (30) / 10 & Yonos Para HF 30/12) 

Circulation pump for the Consumer group - self-regulating (not controllable)

Fig.7.19: Setting options UPE 100-25 (32) K and UPE 120-32K

Electrical connection: none Control with 0-10V or PWM signal possible!

_{Electrical connection directly in the connection box of the pump head - NO plug, NO cable required !!!}

Fig.7.20: Electrical connection UPE 100-25 (32) K and UPE 120-32K

7.5.4.1.5 Characteristic curves UPE 100-25 (32) K

Fig.7.21: Characteristic curves UPE 100-25 (32) K

7.5.4.1.6 Characteristic curves UPE 120-32K

Fig.7.22: Characteristic curves UPE 120-25 (32) K

7.5.4.1.7 UPH 60-25 and UPH 60-32

(corresponds to Grundfos Alpha2L 25 (32) -60)

Circulation pump with permanently stored constant speed levels, the control modes Δp-c and Δp-v.
No control via WPM possible!

Fig.7.23: UPE 60-25 setting options (32)

7.5.4.1.8 Characteristic curves UPH 60-25 (32)

Fig.7.25: Characteristic curves UPE 60-25 (32)

7.5.4.1.9 UP 75-25PK and UP 75-32PK

(corresponds to Grundfos UPM3 Flex AS 25 (32) -75)

Both pumps can be controlled by the heat pump manager or, alternatively, set manually using four standard speed levels

Fig.7.26: Setting options UP 70-25 (32) PK

Fig.7.27: Electrical connection UP 70-25 (32) PK

7.5.4.1.10 Characteristic curves UP 75-25PK and UP 75-32PK

Fig.7.28: Characteristic curves UP 70-25 (32) PK

7.5.4.1.11 UPH 80-25P and UPH70-25P

(corresponds to Grundfos UPMGeo 25-85 and Grundfos UPM2 25-75)

Both pumps should be controlled by the heat pump manager - if the pump is not controlled, it goes to maximum speed.

_{Both cables with plugs included with the pump
Attention: Control with PWM signal: First remove the UPM plug (bridge). Keep the UPM plug in a safe place!}

Fig.7.29: Electrical connection UP 80-25P and UP 70-25P

7.5.4.1.12 Characteristic curves UPH 80-25P and UPH70-25P

Fig. 7.30: Characteristic curves UP 70-25P and UP 80-25P

7.5.4.1.13 UPH 90-25 and UPH 90-32

(corresponds to Grundfos UPML 25 (32) -95 AUTO)

Circulation pump with fixed control modes ∆p-c and ∆p-v!
No control via WPM possible!

The pump allows the setting of 6 preset speed levels:

• 3 proportional pressure levels ∆p-v (PP)

• 3 constant pressure levels ∆p-c (CP)

Fig.7.31: UPH 90-25 setting options (32)

Fig.7.32: Electrical connection UPH 90-25 (32)

7.5.4.1.14 Characteristic curves UPH 90-25 and UPH 90-32

Fig.7.33: Characteristic curves UPH 90-25 (32)

7.5.4.1.15 UPH 100-25 (32) P and UPH 100-25 (32) V

(corresponds to Grundfos MagnaGeo 25 (32) -100 PWM and Grundfos MagnaGeo 25 (32) -100 VDC)

Fig.7.34: Setting options UPH 100-25 (32) P and UPH 100-25 (32) V

Fig.7.35: Electrical connection of load cables UPH 100-25 (32) P and UPH 100-25 (32) V

_{Plug (m) and coupling (f) with 2.25 m cable (including plug connector) included with the pump}

Fig.7.36: Electrical connection control cable UPH 100-25 (32) P and UPH 100-25 (32) V

7.5.4.1.16 Characteristic curve UPH 100-25 (32) P and UPH 100-25 (32) V

Fig.7.37: Characteristic curves UPH 100-25 (32) P and UPH 100-25 (32) V

7.5.4.1.17 UPH 120-32 PK

(corresponds to WILO Stratos Para 30 / 1-12 PWM)

Circulation pump for the generator, consumer and brine circuit with the control types ∆p-c, ∆p-v and control by means of a PWM input signal

Fig.7.38: UPH 120-32 PK setting options

Fig.7.39: Electrical connection UPH 120-32 PK

7.5.4.1.18 Characteristic curve UPH 120-32 PK

Fig.7.40: Characteristic curve UPH 120-32 PK

7.5.4.1.19 UPH 80-40F

(corresponds to Grundfos Magna3 40-80F)

Fig. 7.41: Application limits and characteristics UPH 80-40F

7.5.4.1.20 UPH 120-50F

(Grundfos Magna3 50-120F)

Fig.7.42: Application limits and characteristics UPH 120-50F

7.5.4.2 Electrical connection of load and control circuit UPH 80-40F and UPH 120-50F

Fig.7.43: Electrical connection UPH 80-40F and UPH 120-50F

7.5.4.3 Heat pump manager and electronic circulation pump

Fig. 7.44: Electrical wiring of the control signal on the WPM Econ5plus heat pump manager

7.5.4.4 Starting currents for circulating pumps

Tab .: Overview table of starting currents and coupling relays for circulating pumps

7.5.5 Circulation pumps - settings and connection to the heat pump manager

7.5.5.1 Heat pump manager and electronic circulation pumps

7.5.5.1.1 Overview of pre-assignment of the analog outputs (PWM & 0 - 10V) on the heat pump manager

Fig. 7.45: Pre-assignment of the analog outputs (PWM & 0 - 10V) of the various heat pump managers

7.5.5.1.2 Electrical wiring of control signal 0 - 10 V on WPM 2006/2007 Plus

Fig.7.46: Electrical wiring of control signal 0 - 10V on the WPM 2006/2007 Plus

_{** Optionally adjustable}

Tab.7.11: Pin assignment control signal 0 - 10V on the WPM 2006/2007 Plus

7.5.5.1.3 Electrical wiring WPM EconPlus 0-10V signal

Fig.7.47: Electrical wiring of control signal 0 - 10V on the WPM EconPlus

Tab.7.12: Pin assignment control signal 0 - 10V on the WPM EconPlus

7.5.5.1.4 WPM Econ5Plus electrical wiring with PWM and 0 - 10V signal

• Circulation pumps can be controlled with 0 - 10 V or PWM signal!

• Two outputs are available for pulse width modulation (PWM).

• These can be used as follows:

Tab.7.13: Outputs for control signals 0 - 10V and PWM on the WPM Econ5Plus

Fig. 7.48: Electrical wiring of control signal 0 - 10V and PWM for air / water heat pumps on the WPM Econ5Plus

Tab.7.14: Terminal assignment control signal 0 - 10V and PWM for air / water heat pumps on the WPM Econ5Plus

Fig. 7.49: Electrical wiring of control signal 0 - 10V and PWM for brine / water heat pumps on the WPM Econ5Plus

Tab.7.15: Terminal assignment control signal 0 - 10V and PWM for brine / water heat pumps on the WPM Econ5Plus

7.5.5.1.5 Settings on the heat pump manager

The settings of the electronic circulation pumps are made in the installation menu level 2 under pump control:

Reduce M13 in the settings:

Menu + Enter
Set settings à pump control à heating M13 to manual then a percentage value can be set on the right or adapted to the system accordingly.

7.5.5.1.6 Settings on the heat pump manager - general description of functions

general description

• Level 1 - 3

  • By selecting a level 1 - 3, a fixed speed is specified

  • Level 1 corresponds to the lowest and level 3 to the maximum speed

• Manually

  • If manual is selected, a freely selectable voltage can be set as a fixed value between 30 and 100%

Heating circulation pumps

• Automatically

  • If automatic is selected, the control takes place depending on the return temperature

    • Return temperature <35 ° C = 80% capacity control

    • Return temperature 35 - 45 ° C = 70% capacity control

    • Return temperature> 45 ° C = 60% capacity control

  • When the compressor is at a standstill, the pumps are regulated at 50% output

Brine / well pumps

• Automatically

  • If automatic is selected, the control is based on a fixed, predetermined spread between the heat source inlet and outlet temperature:

    • Heat source inlet <- 5 ° C = 2K spread

    • Heat source inlet -5 - 15 ° C = 3K spread

    • Heat source inlet> 15 ° C = 4K spread

  • When the compressor is at a standstill, the pumps are regulated at 50% output

  • Brine or water / water heat pumps without an electronic expansion valve do not have a heat source inlet sensor; the spread-dependent control function cannot be used with these heat pump types.

7.5.6 Circulation pumps - pumps for 2-compressor brine and water / water heat pumps (TU series)

7.5.6.1 Pumps for brine / water heat pumps SI (H) 26 - 130TU

7.5.6.1.1 Brine (heat source) and heat generator circuit pump (M11 and M16)

Fig. 7.51: Overview of heat source and generator circuit pumps for 2-compressor brine / water heat pumps

Overview table of pump assignments for 2 compressors, brine / water heat pumps up to September 2018

Tab.7.16: Pump assignments for 2 compressors, brine / water heat pumps up to September 2018

Overview table of pump assignments for 2 compressors Brine / water heat pumps from September 2018

Tab.7.17: Pump assignments for 2 compressors, brine / water heat pumps from September 2018

7.5.6.1.2 Heat generator circuit free compression pump M16

Technical data generator circuit pump 2 compressors brine / water heat pumps until September 2018

Tab.7.18: Technical data for generator circuit pumps, 2 compressors, brine / water heat pumps up to September 2018

Technical data generator circuit pumps 2 compressors brine / water heat pumps from September 2018

Tab.7.19: Technical data generator circuit pumps 2 compressors brine / water heat pumps from September 2018

7.5.6.1.3 Brine circuit free compression pump M11

Technical data Brine (heat source) pump 2 compressors Brine / water heat pumps until September 2018

Tab.7.20: Technical data, brine (heat source) pump 2 compressors Brine / water heat pumps up to September 2018

Technical data Brine (heat source) pump 2 compressors Brine / water heat pumps from September 2018 

Tab.7.21: Technical data brine (heat source) pump 2 compressors Brine / water heat pumps from September 2018

7.5.6.2 Pumps for reversible brine / water heat pumps SI 35 - 90TUR

7.5.6.2.1 Brine and heat generator circuit pumps (M11 and M16)

Overview table of pump assignments for 2 compressors Brine / water heat pumps reversible until September 2018

Tab.7.22: Pump assignments for 2 compressors Brine / water heat pumps reversible until September 2018

Overview table of pump assignments for 2 compressors, reversible brine / water heat pumps from September 2018

Tab.7.23: Pump assignments for 2 compressors Brine / water heat pumps reversible from September 2018

7.5.6.2.2 Free pressing heat generator circuit M16

Technical data generator circuit pump 2 compressors brine / water heat pumps reversible until September 2018

Tab.7.24: Technical data generator circuit pump 2 compressors Brine / water heat pumps reversible until September 2018

Technical data generator circuit pump 2 compressors brine / water heat pumps reversible from September 2018

Tab.7.25: Technical data generator circuit pump 2 compressors Brine / water heat pumps reversible from September 2018

7.5.6.2.3 Brine circuit free compression pump M11

Technical data Brine (heat source) pump 2 compressors Brine / water heat pumps reversible

Tab. 7.26: Technical data Brine (heat source) pump 2 compressors Brine / water heat pumps reversible

7.5.6.3 Pumps for water / water heat pumps WI (H) 35-180TU

7.5.6.3.1 Heat generator circuit pump M16 - water / water heat pump

Fig. 7.52: Overview of generator circuit pumps for 2-compressor brine / water heat pumps

Overview table of pump assignments for 2 compressors, water / water heat pumps up to September 2018

Tab.7.27: Pump assignments for 2 compressors for water / water heat pumps up to September 2018

Overview table of pump assignments for 2 compressors, water / water heat pumps from September 2018

Tab.7.28: Pump assignments for 2 compressors, water / water heat pumps from September 2018

7.5.6.3.2 Heat generator circuit free compression pump M16

Technical data generator circuit pump 2 compressors water / water heat pumps until September 2018

Tab.7.29: Technical data of the generator circuit pump for 2 compressors for water / water heat pumps up to September 2018

Technical data generator circuit pump 2 compressor water / water heat pumps from September 2018 

Tab.7.30: Technical data generator circuit pump 2 compressor water / water heat pumps from September 2018

7.5.6.4 Characteristic curves and technical data for circulating pumps

7.5.6.4.1 Grundfos MagnaGeo 32-100 VDC

7.5.6.4.2 WILO Stratos Para 30 / 1-12 0-10V

Fig.7.55: Delivery head Stratos Para 30 / 1-12 Fig.7.56: Power consumption Stratos Para 30 / 1-12

7.5.6.4.3 Grundfos Magna3 32-120F

7.5.6.4.4 Grundfos Magna3 40-80F

7.5.6.4.5 Grundfos Magna3 40-120F

7.5.6.4.6 Grundfos Magna3 50-120F

7.5.6.4.7 Grundfos Magna3 65-80F

7.5.6.4.8 Grundfos Magna3 65-100F

7.5.6.4.9 Grundfos Magna3 65-120F

7.5.6.4.10 Grundfos Magna3 65-150F

7.5.7 Circulation pumps - connection and installation of 2-compressor brine and water / water heat pumps (TU (R) series)

7.5.7.1 Connection and installation of the generator circuit and brine pump

7.5.7.1.1 Electrical wiring (load 230V) pumps M11 / M16 on the WPM Econ5plus **

_{** For water / water heat pumps WI (H)… TU only M16! Well pump M11 including contactor and motor protection switch on site.}

Fig. 7.73: Electrical connection 230V generator and heat source (brine) pump

7.5.7.1.2 Electrical wiring (control signal 0 - 10V) M11 & M16 on the WPM Econ5plus **

Fig. 7.74: Electrical connection control signal 0 - 10V generator and heat source (brine) pump

7.5.7.1.3 Grundfos Magna3 series - hydraulic connection

7.5.7.1.4 Grundfos Magna3 series - electrical connection of load and control circuit

Fig.7.77: Electrical connection load (230 V) and control signal Magna3 series

7.5.7.1.5 Grundfos Magna3 series - electrical connection - digital input

Fig. 7.78: Electrical connection of digital input Magna3 series

7.5.7.1.6 Grundfos MagnaGeo 32-100 VDC connection load cable (~ 230V)

Fig.7.79: Electrical connection load (230V) MagnaGeo pump

7.5.7.1.7 Grundfos MagnaGeo 32-100 VDC control line connection (0-10V)

Fig. 7.80: Electrical connection input signal 0 - 10V MagnaGeo pump

7.5.7.1.8 WILO Stratos Para 30 / 1-12 0-10V: Connection of control and load line (0-10V)

Fig.7.81: Electrical connection load (230V) and control signal 0 - 10V Wilo Stratos Para pump series

7.5.8 Circulation pumps - exchange level for uncontrolled circulation pumps

Table 7.31: Exchange level for uncontrolled pumps - electronically controlled circulation pumps

When replacing, the following points must generally be observed:

• Purpose of the pump (note the temperature range)

• Alternating or three-phase current (electronically controlled wet-running pumps can only be connected via alternating current)

• Coupling relay due to high starting currents have to between the pump and the heat pump manager

Pumps with threaded pipe connection

• Installation length (without screw connection and seals).

• Thread on the pump housing.

Flanged pumps

• Pay attention to the nominal pressure for pumps of the same nominal size.

• Installation length (always without counter flanges and seals).

7.5.9 WPM EconPlus connection diagram

Fig.7.82: Connection diagram of the wall-mounted WPM EconPlus heat pump manager

7.5.10 WPM Econ5Plus connection diagram

Fig. 7.83: Connection diagram of the WPM Econ5Plus heat pump manager for the LAW 9IMR and LAW 14ITR heat pumps

7.5.11 Connection diagram WPM EconSol

Fig.7.84: WPM EconSol connection plan

7.5.12 Legend for connection diagrams

Tab.7.32: List of abbreviations for the heat pump connection diagram

7.5.13 Terminal assignment heat pump manager

Tab.7.33: Overview table of the heat pump manager terminal plan

•  Recognition of the optimal operating mode in each case, with the greatest possible proportion of heat pumps

•  Frost protection function

• Low pressure pressostat brine for installation in the brine circuit (special accessory)

7.6 Master for parallel connection of several heat pumps Chapter also under Heat pump manager?

The use of a higher-level master control is recommended when 2 heat pumps are connected in parallel. This means that even compressor runtimes are achieved, even when different heat pumps are combined in one system.

7.6.1 Description of the WPM Touch Master

The wall-mounted WPM Master is available for the parallel control of up to 14 heat pumps. With this controller, up to 30 power levels of a monovalent, monoenergetic or bivalent system with outside temperature-dependent operating mode switching can be controlled.

Function description

• Parallel connection of max. 14 heat pumps

• Maximum 30 power levels (1 x passive cooling, 28 x compressor, 1 x 2nd heat generator)

• Control of a maximum of 3 heating circuits (1 x unmixed, 2 x mixed)

• Combination of active and passive cooling

• Central switching of the operating mode (cooling, summer, winter)

• Automatic central operating mode switchover via limit temperatures (cooling, summer, winter)

• Demand-based performance level management

Central and decentralized control

When controlling several heat pumps, a distinction can be made between centralized and decentralized hot water generation.

Central control

• Central specification of the priorities for hot water, heating, cooling and swimming pool

• Requirements are processed individually

• Specification of the maximum output levels for hot water generation

• Decentralized evaluation of a heat pump fault

Decentralized control

• Central specification of priorities for heating and cooling

• Decentralized specification of the priorities for hot water and swimming pool

• Parallel operation of heating / cooling and hot water preparation / swimming pool possible with reversible heat pumps with additional heat exchanger

Allocation of priorities

For the most efficient operation of the entire system, the heat pumps are controlled by the master controller with different priorities. The master controller receives feedback from the individual heat pump managers and recognizes blocked heat pumps due to a fault or a decentralized request. When combining different types of heat pumps (air / water and brine / water heat pumps), the different heat pumps are controlled depending on the outside temperature:

• Preferred use of air / water heat pumps above an adjustable outside temperature

• Preferred use of brine / water heat pumps below an adjustable outside temperature

In order to achieve the most uniform possible distribution of the running times, the master controller preferably starts the compressor with the shortest running time, and the master controller determines the running times of the individual compressors.

7.6.2 Electrical connection WPM Touch Master

1. The 3-wire supply line for the Heat pump manager (Heating controller N1) is routed into the heat pump (devices with integrated controller) or to the subsequent assembly area of the heat pump manager (WPM). The supply line (L / N / PE ~ 230V, 50Hz) for the WPM must be connected to permanent voltage and for this reason must be tapped in front of the EVU blocking contactor or connected to the household electricity, otherwise important protective functions will be out of order during the EVU blocking .

2. That Contactor (K20) for the Immersion heater (E10) is to be designed for mono-energetic systems (2.WE) according to the radiator output and on site to be provided. The control (230VAC) takes place from the heat pump manager via terminals X1 / N and N1-J13 / NO 4.
   The contactor is built into the electrical distribution. The load lines for the immersion heater must be designed and secured in accordance with DIN VDE 0100.

3. the Heating circulation pump (M13) is connected to terminals X2 / N and N1-X2 / M13.

4. The return sensor (R2) is attached to terminals X3 / GND (Ground) and N1-X3 / R2.

5. Of the Outside sensor (R1) is attached to terminals X3 / GND (Ground) and N1-X3 / R1.

7.6.3 Configuration of the network

The network is set up in a line structure and is connected via terminal J11 (both on the heat pump manager and on the master controller). There can be a maximum of 32 participants in the network (16 controllers and 16 control units).

Fig.7.85: Example of a possible network including three heat pump managers with 3 control units (pGDx)

Fig. 7.86: View of the connection on terminal J11 of the WPM

Fig. 7.87: Three heat pump managers, each with its own power supply

7.7 SG Ready to use load-variable tariffs Does that also belong under heat pump manager? Between chapters 7.1 and 7.2

7.7.1 Regulations of the Federal Heat Pump Association (BWP) e.V.

According to the SG Ready regulations of the Bundesverband Wärmepumpe (BWP) e.V., a manufacturer may label an electrical heating heat pump with the "SG Ready" logo if the heat pump manager can react to the following four operating states of a traffic light tariff with load-variable tariffs.

Operating state 1

• Switching state with terminal solution 1: 0

• This operating mode is downward compatible with the EVU lock and includes a maximum of 2 hours of hard lock time

Operating condition 2

• Switching status with terminal solution 0: 0

• In this circuit, the heat pump runs in energy-efficient normal mode with a proportion of the heat storage tank being filled for a maximum of two hours from the utility company

Operating status 3

• Switching state with terminal solution 0: 1

• In this operating state, the heat pump runs within the controller in intensified operation for room heating and hot water preparation.

• This is not a definitive start-up command, but a switch-on recommendation based on today's increase.

Operating status 4

• Switching status with terminal solution 1: 1

• This is a definitive start-up command, insofar as this is possible within the framework of the controller settings.

• For this operating state, different control models must be set on the heat pump manager for different tariff and usage models.

• Variant 1: The heat pump (compressor) is actively switched on

• Variant 2: The heat pump (compressor and electrical auxiliary heating) is actively switched on, optional: higher temperatures in the heat storage tanks

7.7.2 Implementation on the heat pump manager

In order to meet the regulations of the Bundesverband Wärmepumpe e.V., a switching signal can be applied to terminals ID 1, ID 2 and ID 3. Different operating states of the heat pump are possible depending on the terminal assignment.

Red operating status - high electricity price

• Input ID 2 closed (connection of input ID 2)

• Lowering of the heating curve by an adjustable lowering value

• Hot water lock (minimum temperature adjustable)

• Swimming pool lock

Fig.7.88: Connection of input ID 2

Yellow operating status - normal electricity price

• Input ID 1 and ID 2 open (connection of input ID 1 and ID 2)

• Heating operation takes place according to the set heating curve / room temperature

• Hot water generation takes place according to the set target temperature

• Swimming pool preparation takes place according to the set target temperature

Fig.7.89: Connection of input ID 1 and ID 2

Green operating status - low electricity price

• Input ID 1 closed (e.g. low electricity price or free electricity) (connection of input ID 1)

• Switch-on command for the heat pump

• Raising the heating curve by the increase value

• Hot water generation takes place up to a maximum hot water temperature or determined HP-max. temperature

Fig.7.90: Wiring of input ID 1

7.7.3 Own use of self-generated electricity

The use of self-generated electricity (e.g. PV electricity) ultimately represents a load-variable tariff in which the heat pump can be operated with inexpensive electricity. In this case the input for green power (ID 1) is connected. In this operating state, the heat pump runs in increased mode for space heating, hot water or swimming pool preparation.

The use of self-generated electricity is possible with the heat pump managers WPM 2006 plus / WPM 2007 plus and the WPM EconPlus / WPM Econ5Plus. The following tables show the possible system configurations for the various heat pump managers.

_{1 Not possible in systems with swimming pool / hot water preparation via thermostat}

_{2 2. Heating circuit sensor (R5) becomes the swimming pool sensor (R20)}

_{3 Only possible in combination with relay module RBG WPM (M19)}

Tab.7.34: Possible combinations with a WPM 2006 plus / WPM 2007 plus

_{1 Not possible in systems with swimming pool / hot water preparation via thermostat}

_{2 2. Heating circuit sensor (R5) becomes the swimming pool sensor (R20)}

Tab.7.35: Possible combinations with a WPM EconPlus / WPM Econ5Plus

SUPPLEMENT CHAPTER

· Smart grid

· Individual room control

· Reference room control

· Superordinate load management

A higher-level load management is usually used for the following requirements:

• Combination of different heat sources

• Individual capacity control with adjustable compressor - switch-on and switch-off times

• Central hot water preparation via all heat pumps connected in parallel

Tab.7.36: Overview table of contact positions for higher-level load management

Combination of heat pump and photovoltaic system

Use of variable tariffs	configuration	setting
Fig. 7.91: Integration scheme for the use of variable tariffs with row buffer storage and hot water storage	Heat pump	mono- energetically
	Heating circuit	Heat
	Heating circuit	(optional)
	Heating circuit	(optional)
	Hot water	Yes, with a feeler
	swimming pool	Yes, with probe (optional)
	Heat pump in mono-energetic operation with 1 heating circuit and hot water preparation. Activation of the function via the switching contacts ID 1 and ID 2 on the heat pump manager. The hot water temperature is increased to the maximum set hot water temperature. Increase of the heating curve / room temperature by the set increase value. NOTE Room temperature control using Smart-RTC is recommended.

Use of temporary peak loads	configuration	setting
Fig. 7.92: Integration scheme for the use of time-limited load peaks with row buffer storage, hot water storage and regenerative storage with additional heating rods	Heat pump	Bivalent- Regenerative
	Heating circuit	Heat
	Heating circuit	(optional)
	Hot water	Yes, with a feeler
	swimming pool	Yes, with probe (optional)
	System hydraulics with 1 heating circuit, hot water preparation and regenerative storage. Activation of the function via the switching contacts ID 1 and ID 2 on the heat pump manager. The hot water temperature is increased to the maximum set hot water temperature. Increase of the heating curve / room temperature by the set increase value. Optionally, if there is a surplus of electricity, electric heating rods can charge the regenerative storage and absorb short-term load peaks (external control).

Use of temporary peak loads	configuration	setting
Fig. 7.93: Integration scheme for the use of temporary load peaks with row buffer storage, hot water storage and regenerative storage with additional heating elements. NOTE It is to be clarified with the EVU in advance whether the PV electricity can be fed in to drive the heat pump due to possibly existing meters.	Heat pump	Bivalent- Regenerative
	Heating circuit	Heat
	Heating circuit	(optional)
	Hot water	Yes, with a feeler
	swimming pool	NO
	System hydraulics with 1 heating circuit, hot water preparation and regenerative storage. Activation of the function via the switching contacts SG-Ready switching contacts on the heat pump manager. Loading of the regenerative buffer tank using the M 19 pump. The hot water temperature is increased to the maximum set hot water temperature. Increase of the heating curve / room temperature by the set increase value. Optionally, if there is a surplus of electricity, electric heating rods can charge the regenerative storage and absorb short-term load peaks (external control).

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