4
GB - Installation Instructions
Product overview
The thermostat is primarily designed for use in systems
equipped with 4-pipe fan-coil units. It may also be used in
other heat / cool systems, including split systems and air to
air heat-pumps.
The thermostat controls room temperature by sequencing
the operation of heating and cooling. A selectable dead-band
prevents overlap of heating and cooling processes. For
systems equipped with compressor derived cooling, including
heat-pumps, a selectable compressor delay timer is also
included. If used to control a heat-pump, the reversing valve
can be energisation on either a heat or cool demand.
Installation
First remove the wallplate from the back of the unit.
Ensure that there is a minimum of 50mm above the
unit and 100mm below the unit in order to mount the
plug-in
module.
Fix at a height of
approximately 1.5m
from the
fl
oor, away
from draughts or heat
sources such a fan-coil
outlets, sunlight or of
fi
ce
equipment.
Summary of Contents for RET 230 HC-1
Page 73: ...73 ...
Page 74: ...74 ...
Page 75: ...75 ...
Page 76: ...www danfoss com BusinessAreas Heating Part No 39050v04s2 1 10 07 ...