4: Connections For Heating & Cooling; 5: Power Supply; 6: Wiring Diagram; 7: External Antenna - Danfoss HC Guide D'installation

Installation Guide
Connections
4: Connections for Heating & Cooling
When the system is in cooling mode the actuator output will be activated (ON for NC
actuators / OFF for NO actuators) when the temperature in a room exceeds the set point.
When the system is in cooling mode an independent dew-point alarm function should be installed.
1. Connect an external ON/OFF switch to the
terminals for Heating & Cooling. When this
switch is closed (ON) the system will switch
from heating to cooling.

5: Power supply

When all actuators, pump and boiler controls and other inputs are installed, connect
the supply plug to a 230 V power supply.
If the power supply plug is removed during installation, make sure that the connection is made ac-
cording to existing law/legislation.

6: Wiring diagram

Input
Away
Heating / Cooling
max. 3 m
External
antenna
7: External antenne
The external antenna is installed as diverter when there is no transmission possible through a large
building, heavy construction or metal barrier, e.g. if the Danfoss Link™ HC is located in a metal cabinet/
box
1. Remove the plastic cover from the antenna con-
nection.
Danfoss Link™ HC
2. Fix the cable.
Relays
1 2 3
L N L N
2. Connect the external antenna and place it on the
VIFZL35X © Danfoss
Actuator outputs
4 5 6 7 8
other side of the transmission barrier.
04/2011
9 10
230 V~
50 Hz
7
GB