Danfoss 088U0215 User manual

088U0215
GB Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
Index
1. Functional Overview ...............................4
2. Installation.........................................5
3. Temperature Settings...............................6
4. Transmission Test...................................9
5. Mounting.........................................10
6. Uninstallation.....................................10
7. Specifications .....................................11
8. Troubleshooting ..................................12
Figures and illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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1. Functional Overview
Front (fig. 1)
 Up/down selector
 Push button
 Red LED (behind the cover)
InfraRed floor sensor
LED modes
Permanent light . . . . . . ON
No light .............. OFF
Slow flashing . . . . . . . . . Flashes
Fast flashing. . . . . . . . . . Flickers
Back (fig. 2)
 Back plate
 Back plate lock/unlock (turn 90°)
 Screw hole for wall mounting
 Battery placement
 Screw and wall plug
Note: To activate batteries please remove enclosed strips
from batteries.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
2. Installation
Note: Assignment of Room Thermostats to Master Controller
should be within a distance of 1.5 m.
Activate Install mode on Master Controller (fig. 1)
• Use the menu selection button  to select the Install
mode. Install LED  flashes.
• Activate Install mode by pressing OK. Install LED 
goes ON.
Activate Install mode on room thermostat
• Press the push button . LED  and  flicker during
communication.
Select output on Master Controller
• All available output LEDs on Master Controller  light
up, and the first one flashes.
• Press output selection button  to select desired
output (flashes). Accept with OK .
• All output LEDs  go OFF. Selected output stays ON
shortly.
Room thermostat installation status
• Satisfactory: LED  goes OFF.
• Not satisfactory: LED  flashes 5 times.
Note: A room thermostat can be assigned to several outputs
if needed by repeating the installation process.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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3. Temperature Settings
Digital Display (fig. 1)
SET Set value adjustment
MIN Minimum temperature limitation
MAX Maximum temperature limitation
Transmission link icon
Low battery indicator
Alarm icon
Settings only available from CF-RC Remote controller:
Lock icon
Timer icon
Room temperature icon
Floor temperature icon
Changing default display temperature (fig. 1)
1. The actual room temperature is shown in the display
as default.
2. To change default display from actual room tempera-
ture to actual floor surface temperature, press and
hold the push button  until SET MAX is shown in the
display.
3. Press the button  shortly and repeatedly until or
is flashing in the display.
4. Press the up/down selector  to select the new default
display temperature:
Room temperature Floor surface temperature.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
Setting of room temperature
1. Make sure actual room temperature is shown in the
display.
2. Press the up/down selector  to set the desired room
temperature value. SET is shown in the display.
3. When releasing the up/down selector  the display
returns to actual temperature.
Note: The thermostat regulates the floor heating system
according to room temperature set point, within the
maximum and minimum limitations defined for the
floor surface temperature.
Room temperature limitation
1. Make sure actual room temperature is shown in the
display.
2. Press the push button  until SET MAX is shown in
the display.
3. Press the up/down selector  to set the maximum
room temperature limitation.
4. Press the push button  shortly, SET MIN is shown in
the display.
5. Press the up/down selector  to set the minimum
room temperature limitation.
6. Press the push button  shortly and the actual floor
surface temperature is shown in the display.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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Floor surface temperature limitation
1. Ensure actual floor surface temperature is shown in
the display illustrated by .
2. Press and hold the push button  until SET MAX is
also shown in the display.
3. Press the up/down selector  to set the maximum
floor surface temperature limitation.
4. Press the push button  shortly, SET MIN is also
shown in the display.
5. Press the up/down selector  to set the minimum
floor surface temperature limitation.
IMPORTANT!
As heat emission from the floor may vary slightly depending on
floor covering - and thereby cause inaccurate temperature
measurement - it may be necessary to adjust the setting of
max. and min. floor surface temperatures accordingly.
It is important always to follow recommendations from the
floor manufacturer regarding max. floor surface tempera-
ture.
It is recommended always to include mixing shunt for floor
heating circuits in order to ensure optimal flow tempera-
ture. - In addition to minimised energy consumption, correct
setting of the flow temperature will eliminate the risk of
excessive heat transfer to the floor.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
4. Transmission Test
Initiate transmission test on room thermostat (fig. 1)
• Press the push button .
• LED  goes ON.
Link test is satisfactory
• LED  goes OFF.
Link test is unsatisfactory
• LED  flashes 5 times.
No Link connection to room thermostat
• Try to relocate room thermostat in the room.
• Or install CF-RU Repeater Unit and locate between
Master Controller and room thermostat.
Note: When connected to a room thermostat, the Master
Controller output LED(s)  flash(es) during Link test.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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5. Mounting
Placing a room thermostat (fig. 3)
• A room thermostat should be placed in accordance
with fig. 3.
IMPORTANT!
Wherever possible, a room thermostat should be installed
at a place where the effect of sunlight, strong artificial
light (e.g. halogen spotlight), draught, other heat-emitting
equipment (e.g. TVs) etc. is avoided.
Please note that no furniture, rugs etc. should be perma-
nently placed within the area of the InfraRed Floor Sensor as
shown in fig. 3.
6. Uninstallation
Activate Uninstall mode on Master Controller (fig. 1)
• Use the Menu selection button  to choose the Unin-
stall menu. Uninstall LED  flashes.
• Activate Uninstall mode by pressing OK . Uninstall
LED  goes ON.
Deselect output on Master Controller
• Select output to be removed by output selection
button .
• Remove flashing output  with OK .
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
Instruction CF-RF Room Thermostat with Infrared Floor Sensor
7. Specifications
Temperature setting range 5-35°C
Transmission frequency 868.42 MHz
Transmission range in normal
buildings (up to) 30 m
Transmission power < 1 mW
Battery Alkaline 2xAA, 1.5 V
Battery lifetime (up to) 1-3 years
Ambient temperature 0-50°C
IP class 21
Floor ensor accuracy +/- 1°C
Floor sensor emission
coefficient 0.9

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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Instruction CF-RF Room Thermostat with Infrared Floor Sensor
8. Troubleshooting
Error Indication Possible Cause
The LED, and
flashes every 5th minute
Low battery
The LED, and
flashes every 30 sec.
Critical low battery
The LED, , and
flashes
Critical low battery
- transmission has stopped
The LED, and flashes
5 times
Installation/Link Test is
unsatisfactory
E03 and Actuator error on output
(CF-MC)
E05 and Room temperature below
5°C

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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Fig. 1
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

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© Danfoss 05/2011 VIUHR402 Danfoss Heating Solutions
Fig. 2
Fig. 3
1,5 m.
0,5 m.
0,25 m.
Instruction CF-RF Room Thermostat with Infrared Floor Sensor

Danfoss Heating Solutions VIUHR402 © Danfoss 05/2011
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Instruction CF-RF Room Thermostat with Infrared Floor Sensor