Danfoss DHP-R 7UA HPC EM Instrukcja instalacji - Strona 7

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Connecting

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Note! The maximum load may not exceed 50 VA.

Expansion module

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

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

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

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

Hot water return

Connections of expansion module for TWC operation:

Temperature input, T1: Sensor, water heater

Temperature input, T2: Transmitter, hot water return

Analogue output 0-10 V, AO1: -

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

Exp.in: Connection from HPC RM

Exp.out: Connection to possible additional module.

Electric cartridge

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• Connect to DO1.1 to 24 VAC 2.1.

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

Sensor, water heater

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• Connect the sensor cable to T1 and GND.

Sensor, hot water return

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• Connect the sensor cable to T2 and GND.

24 VAC 2.1

From Exp.out

Exp.in

water heater

HPC EM

TWC

Exp.out

Start signal for

electric cartridge

24 VAC 2.2

VMILF102

Danfoss – 7