Danfoss DHP-AT Page 26 Installation And Service Instructions Manual Download | Manualshive

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7.4

Connecting external electrical heater

A B

38

L

N

Connect the cable between the heat pump (1) and the optional external electrical heater (38).

7.5

Connecting hot water sensor

Connect the hot water tank sensor cable (12), optional, not included in delivery, to the connector in the heat

pump marked "Hot water tank sensor".

7.6

Connecting buffer tank sensor

Connect the buffer tank sensor cable (13) to the heat pump to the connector marked "Buffer tank sensor".
If a buffer tank is used, connect the other end of the sensor cable to the buffer tank. If the system solution is with-

out a buffer tank, attach the sensor to the supply line.

24 – Installation and service instructions VMGFI202

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Summary of Contents for DHP-AT

Page 1: ...Installation and service instructions DHP AT VMGFI202...

Page 2: ...e applicable war ranty is not binding Danfoss A S retains the right to make changes to components and specifications without prior notice 2011 Copyright Danfoss A S The English language is used for th...

Page 3: ...18 6 3 Connecting supply and return lines 19 6 4 Noise and vibrations 19 7 Electrical installation 21 7 1 Connecting the operator panel 21 7 2 Connecting circulation pump 22 7 3 Connecting hot water...

Page 4: ......

Page 5: ...icate the degree of danger DANGER Indicates an immediate danger that leads to fatal or serious injury if necessary measures are not taken Warning Risk of personal injury Indicates a possible danger th...

Page 6: ...domestic hot water tank heater to the heat pump Circulation pump Circulation pump for heating system Refrigerant circuit The energy carrying circuit between the outdoor air and heating system Refriger...

Page 7: ...has low toxicity However although the toxicity of the refrig erant is low it can cause injury or be highly dangerous in abnormal circumstances or where deliberately abused Warning Risk of personal in...

Page 8: ...d national regulations Warning The electrical installation must be carried out using permanently routed cables It must be possible to isolate the power supply using a multi pole circuit breaker with a...

Page 9: ...ing Caution The installation may only be commissioned if the heating system is filled and all excessive air is expelled Otherwise the circulation pump may be damaged Installation and service instructi...

Page 10: ...ic hot water tank sensor 3 3 Positioning the heat pump 3 3 1 Recommended location When positioning the heat pump note the following Caution The heat pump must be installed outdoors and secured on a st...

Page 11: ...nsure that there is sufficient distance to neighbouring properties so that they are not exposed to noise Applicable local regulations must be followed Note The heat pump should not be enclosed Note Ke...

Page 12: ...bles below 1 2 3 Figure 2 Dimensions Pos Description 6kW 8kW 1 Height 655 mm 755 mm 2 Width 1026 mm 1026 mm 3 Deepth 495 mm 495 mm 1 2 Figure 3 Piping connections rear side Pos Description 6kW 8kW 1 S...

Page 13: ...switch 4 Fan motor 22 Internal electrical heater 6 Left grill 23 High and Low pressure service ports 7 Evaporator 24 Heater exchanger 9 Electrical box compressor capacitor backup heater relay PCB fan...

Page 14: ...erature has reached the setpoint in the control sys tem The heat pump has an internal electrical heater 3kW for backup in situations where the compressor has stopped for other reasons According to the...

Page 15: ...the heat pump withing a safe range 4 3 1 2 1 Evaporator heating belt The drain heater starts if all of the following conditions are fullfilled Power is on and the operation is heating or domestic hot...

Page 16: ...rding to the setting in Menu 05 if it is 0 Drain heater is turned on but controlled by its own conditions When the defrosting stop conditions have been met the heat pump will perform the following seq...

Page 17: ...the Err 18 but this is not a fault The unit will automatically recover when the conditions meet the settings in the control system When the operational status of the heat pump is Standby or powered ON...

Page 18: ...curves and heat pump working range in AUTO mode Position Explanation 1 Initial supply line temperature C 2 Supply line water temperature C 3 Working range in AUTO mode 4 Outdoor Air temperature C Not...

Page 19: ...ble hoses 11 Temperature and pressure valve 3 Control unit 12 Temperature sensor 4 Circulation pump 13 Hot water tank electrical heater 5 Safety valve 14 Hot water tank optional 6 Expansion vessel 15...

Page 20: ...es Caution It is important that the excessive air is expelled from the heating system after installation Bleed valves must be installed where necessary Caution Heating systems with closed expansion ta...

Page 21: ...itioned on a vibration sensitive base vibration dampers should be used The vibration dampers must be correctly dimensioned with regard to the heat pump s weight so that static spring depression of at...

Page 22: ...id the transmission of vibrations Flexible hoses are available to purchase as accessories The figures below show how appropriate and inappropriate installations look using this type of hose 20 Install...

Page 23: ...e to isolate the power supply using a multi pole circuit breaker with a minimum contact gap of 3 mm The electrical installation includes connecting the following components to the heat pump Operator p...

Page 24: ...7 2 Connecting circulation pump M 4 6 7 Connect the power cable between the circulation pump 4 and the heat pump 1 as shown in the picture below 22 Installation and service instructions VMGFI202...

Page 25: ...necting hot water tank electrical heater 14 13 L N 1 2 3 4 5 6 7 Connect the power to the hot water tank electrical heater 13 according to the picture below Installation and service instructions VMGFI...

Page 26: ...ded in delivery to the connector in the heat pump marked Hot water tank sensor 7 6 Connecting buffer tank sensor Connect the buffer tank sensor cable 13 to the heat pump to the connector marked Buffer...

Page 27: ...7 7 Connecting reversing valve hot water Connect the cable to the reversing valve hot water 8 according to the picture M 8 1 2 3 4 5 6 7 Installation and service instructions VMGFI202 25...

Page 28: ...ns for the specification of the power cable L N 1 0 Connect the power cable between the multi pole circuit breaker and the heat pump 1 The picture below shows alternative connections 1 2 L N 1 2 3 4 L...

Page 29: ...eat pump is turned on the display shows the operational mode and the water tempera tures The default settings are house heating dhw in AUTO mode For more information about the operator panel see the u...

Page 30: ...g of the outdoor sensor Communication cable between heat pump and operator panel control unit 9 3 Filling hot water tank and heating system and expelling excessive air 1 Fill the water heater hot wate...

Page 31: ...aptation to the heating system If the circulation pump is used with a fixed pump speed the heat pump settings must be adjusted to the applica ble heating system for instance an underfloor heating or r...

Page 32: ...that the reference room reaches your required indoor temperature of 20 21 C Remember that other rooms will have different temperatures during trimming but these are adjusted later 7 When the referenc...

Page 33: ...ature difference protection of supply and return water 06 Internal heater overheat protection 07 Condenser overheat protection 08 Hot water tank sensor T3 failure 09 Buffer tank sensor T2 failure 10 H...

Page 34: ...ns Sensor Description T1 Air temperature T2 Buffer tank see System solution Page 1 T3 Hot water tank see System solution Page 1 T4 Exhaust gas temperature T5 Return gas temperature T6 Cooling coil ext...

Page 35: ...11 Technical data Installation and service instructions VMGFI202 33...

Page 36: ...12 Connection diagram 34 Installation and service instructions VMGFI202...

Page 37: ...13 Wiring diagram Installation and service instructions VMGFI202 35...

Page 38: ...VMGFI202...

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