Danfoss DHP-R 7UA HPC EM Manuale di istruzioni per l'installazione - Pagina 6

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Installation for TWC function (tap water control)

Application

In the TWC mode, the expansion module ensures that outgoing hot tap wa-

and heat water circulation have a sufficiently high temperature, to prevent the pre-

sence of Legionella bacteria .

TWC operation is achieved by setting the switch according to the figure .

Required accessories

2 PT1000 strap-on temperature detectors with 2 m of cable, item

086U3365 (item number corresponds to 1 transmitter)

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

System image

Expansion module

tWc function

Modular cable

DHP-R Eco

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 .

6 – Danfoss

Heat circuit

VVB

Hot gas circuit

Sensor, water heater

Sensor, hot water return

VVB

VMILF102

VVC

VVB

Electric cartridge

ter

no .