Danfoss REP24CO User manual

REP24 CO
GB Installation Instructions
User Instructions
Electronic Proportional Heat / Cool Thermostat
with Manual Heat/Cool Selection

2
Index
INDEX
Installation Instructions 3-5
User Instructions 6
GB

3
Please note
This product should only be installed by a suitably qualied
electrician or heating installer. The installation must comply
with local Building Regulations and Wiring Regulations,
including any competent person requirements that may exist.
Installation Instructions
Installation Instructions
Thermostat features
Temperature Range 10-30°C
Thermostat Heat, Standby, Cool
Selector Yes
Power Supply 24 Vac ± 15%, 50/60Hz
Control Method P+I, 2k Proportional Band
Dimensions (mm) 110 wide x 90 high x 40 high
Design Standard EN60730-2-9
Rated Impulse Voltage 2.5Kv
Ball Hardness Test 75°C
Control Pollution Situation Degree 2
Temperature Accuracy ±1°C
Control Output 0 - 10 Vdc
Specication
GB
Product overview
This thermostat is designed for fan coil and chilled beam
applications alongside proportional valve and actuator systems
where a 0-10v proportional control output is required.

4
Installation
First remove the wallplate from the back of the unit.
Fix at a height of approximately 1.5m from the oor, away
from draughts or heat sources such as fan-coil outlets,
sunlight or oce equipment.
Installation Instructions
GB
Wiring
Connection Diagram
COM
0V/
return
Electronics
Heating
24 Vac
Cool Heat
Cooling
0-10V outputs
or
0V 24V
AB

5
Installation Instructions
GB
Mounting thermostat to the wallplate
To mount the thermostat to the wallplate, align the tabs on
the top of the thermostat with the apertures in the wallplate
and hinge the thermostat down, pressing rmly to engage
the securing clip in the wallplate.
Fan Con Fan Auto
Sw On
1
MOT WAX
2
DIL Switch options, shown in factory set position.
DIL Switch Descriptions
Switch 1: Not used on this model
Switch 2: MOT - Motorised valve actuator selection.
WAX - Wax valve actuator selection.

6
User Instructions
GB
User Instructions
Setting the temperature
Turn the setting dial to the required temperature.
Frost Protection
To activate frost protection, turn the dial below 10°C. Frost
protection becomes active at 8°C. If the temperature in the room
drops below 8°C then the output will activate.
When frost protection is activated the right LED will turn orange.
Standby Mode
In cooling mode, the standard frost protection is not available;
instead there is standby mode. When the dial is turned past 10°C
the unit enters standby mode and cooling will be inactive until the
dial is turned up past 10°C.
Locking & limiting
To lock or limit the setting range turn the setting dial to 3 and
remove knob.
 Position the locking springs on the rear of the dial to the
desired position and re-mount the knob ensuring that
number 3 on the dial aligns with the reference mark on the
case.

7
User Instructions
GB
Heat Mode
Standby Mode
Cool Mode
LED lit green when thermostat is powered
LED o when setpoint reached LED red when heating LED green when cooling LED orange when frost protection activated
Temperature setting dial
Frost protection mode

8Part No 25284v01 07/08
www.danfoss.com/BusinessAreas/Heating
(2004/108/EC)
(2006/95/EC)