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Summary of Contents for Danfoss DHP-R 7UA HPC EM
- Page 1 DHP-R InstallatIon InstRuctIons ExPansIon moDulE, HPc Em coolIng moDulE, HPc cm VMILF102...
- Page 2 VMILF102 2 – Danfoss...
- Page 3 ⚠ ⚠ The two separate 24 VAC circuits must never be connected to each other or to protective ground . ⚠ ⚠ The total power load on 24 VAC 1 respectively 24 VAC 2 must not exceed 50VA. VMILF102 Danfoss – 3...
- Page 4 Heat exchanger Circulation pump Submersible sensor return VVX Expansion module Wcs operation Modular cable DHP-R Eco Hot gas circuit Cooling agent circuit Heat exchanger A heat exchanger is connected between the heat pump and the circulation for the water heaters as depicted in the system image above . Circulation pump A circulation pump is connected near the heat exchanger. Pilot valve A pilot valve is connected between the circulation pump and the heat exchanger. Submersible sensor A submersible sensor is connected on the return line of the heat exchanger, as close to the heat exchanger as possible. VMILF102 4 – Danfoss...
- Page 5 • Connect to DO1.1 to 24 VAC 2.1 ⚠ • Connect DO1.2 to the contactor coil (the relay coil) and further to 24 VAC 2.2 Pilot valve ⚠ • Connect AO1 to the signal input of the pilot valve ⚠ • C onnect GND to pilot valve GND. If GND is missing in the pilot valve, connect GND to 24 VAC 2.2 somewhere in the system . It is most appropriate to jumper terminals 144 and 146 in the controller cabinet . ⚠ • Connect the pilot valve terminal G to 24 VAC 2.1 ⚠ • Connect the pilot valve terminal G0 to 24 VAC 2.2. • VMILF102 Danfoss – 5...
- Page 6 System image Heat circuit Sensor, water heater Sensor, hot water return Expansion module tWc function Modular cable Electric cartridge DHP-R Eco Hot gas circuit Cooling agent circuit Sensor, water heater A strap-on temperature detector is connected on the supply line lead of the end heater, before the mixing valve. Sensor, hot water return A strap-on temperature detector is connected on the return lead of the warm water circulation, before the circulation pump . VMILF102 6 – Danfoss...
- Page 7 Temperature input, T1: Sensor, water heater Temperature input, T2: Transmitter, hot water return Analogue output 0-10 V, AO1: - Relay, DO1: Signal to electric cartridge, hot water (no-potential closure, maximum 6A) Exp.in: Connection from HPC RM Exp.out: Connection to possible additional module. Electric cartridge ⚠ • Connect to DO1.1 to 24 VAC 2.1. ⚠ • Connect DO1.2 to the contactor coil (the relay coil) and further to 24 VAC 2.2. Sensor, water heater ⚠ • Connect the sensor cable to T1 and GND. Sensor, hot water return ⚠ • Connect the sensor cable to T2 and GND. VMILF102 Danfoss – 7...
- Page 8 Shunt valve, circulation pump . System image Shunt valve Heat circuit 2 Sensor, shunt temperature Heat circuit 1 Circulation pump Expansion module shunt function Cooling agent circuit Modular cable DHP-R Eco Hot gas circuit Sensor, shunt temperature A strap-on temperature detector is connected on the supply line of the heat circuit, after the circulation pump. VMILF102 8 – Danfoss...
- Page 9 • Connect to DO1.1 to 24 VAC 2.1. ⚠ • Connect DO1.2 to the contactor coil (the relay coil) and further to 24 VAC 2.2. Shunt valve ⚠ • Connect AO1 to the signal input of the pilot valve. ⚠ • C onnect GND to pilot valve GND. If GND is missing in the pilot valve, connect GND to 24 VAC 2.2 somewhere in the system . It is most appropriate to jumper terminals 144 and 146 in the controller cabinet . ⚠ • Connect the pilot valve terminal G to 24 VAC 2.1. ⚠ • Connect the pilot valve terminal G0 to 24 VAC 2.2. VMILF102 Danfoss – 9...
- Page 10 Inputs and outputs, HPC EM Temperature inputs Input Shunt Shunt temperature HW heater temp WCS temperature – HW return temp – Analogue outputs Outputs Shunt Control signal – Control signal Relay outputs Outputs Shunt Circulation pump Heater HW Circulation pump VMILF102 10 – Danfoss...
- Page 11 . Required accessories 4 PT1000 contact strap-on temperature detector with 2 m of cable, item no. 086U3365 (item number corresponds to 1 detector) One of the following modular cables: Modular cable 0.3 m, item no. 086U4227 Modular cable 1.1 m, item no. 086U4228 Modular cable 10.0 m, item no. 086U4229 Connection block, item no. 086U5121 Dew point sensor for wall mounting, item no. 086U3396 (if the dew point function is used) VMILF102 Danfoss – 11...
- Page 12 DHP-R Eco Modular cable Circulation pump Reversing valve, cooling tank cooling circuit Reversing valve Cooling agent circuit cooling agent return Transmitter, cooling tank A strap-on temperature detector is connected on the cooling tank at about a third of the tank’s height. Transmitter, cooling circuit A strap-on temperature detector is connected on the supply line of the cooling circuit, after the circulation pump. Transmitter, cooling tank outlet A strap-on temperature detector is connected on the return line of the cooling tank. Transmitter, coolant cooler A strap-on temperature detector is connected on the return line from the coolant cooler, as close to the cooler as pos- sible . VMILF102 12 – Danfoss...
- Page 13 Cooling module connections: Temperature input, T1: Sensor, cooling tank Temperature input, T2: Sensor, coolant cooler Temperature input, T3: Sensor, cooling tank outlet Temperature input, T4: Sensor, cooling circuit Analogue input 0-10 V, AI1: Signal from dew point sensor, room temperature 0 - 50°C Analogue input 0-10 V, AI2: Signal from dew point sensor, relative humidity 0-100% Analogue output 0-10 V, AO1: Signal to cooling circuit pilot valve Analogue output 0-10 V, AO2: Signal to cooling fans Relay 24 VAC, DO1: Signal to reversing valve against cooling tank (passive cold) VMILF102 Danfoss – 13...
- Page 14 Reversing valve, cooling agent return ⚠ • Connect start relay to DO2 and G0 Circulation pump, coolant cooler ⚠ • Connect start relay to DO3 and G0 Reversing valve, surplus heat ⚠ • Connect start relay to DO4 and G0 Circulation pump, cooling circuit ⚠ • Connect start relay to DO5 and G0 Alternative connection of reversing valves: When constant voltage feed to a reversal valve’s 2-point 24 VAC adjuster is required, establish direct connection to 24 VAC 2.1 and 24 VAC 2.2. A start relay is not necessary when using a 2-point 24 VAC actuator. Connect the control signal to the corresponding digital output terminal, DO1, DO2 or DO4. VMILF102 14 – Danfoss...
- Page 15 Control valve cooling circuit Cooling fans Relay outputs Outputs Valve passive cooling (Exchange valve brine to tank) 24 VAC Valve active cooling 24 VAC Circulation pump surplus cooler 24 VAC Valve surplus heat 24 VAC Circulation pump cooling circuit 24 VAC VMILF102 Danfoss – 15...
- Page 16 VMILF102...