Danfoss CF-RD Room Thermostat Installation guide

088U0214

GB Instruction CF-RD Room Thermostat with Display

Danfoss Heating Solutions VIUHQ602 © Danfoss 03/2011

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Instruction CF-RD Room Thermostat with Display

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Instruction CF-RD Room Thermostat with Display

Index

1. Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Temperature Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Transmission Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5. Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6. Uninstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7. Change-over function for 3- and 4-pipe

heating/cooling systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8. Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

9. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figures and illustrations . . . . . . . . . . . . . . . . . . . . . . . . . A1-A2

Danfoss Heating Solutions VIUHQ602 © Danfoss 03/2011

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1. Functional Overview

Front (ﬁg. 1)

 Up/down selector

 Push button

 Red LED (behind the cover)

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-RD Room Thermostat with Display

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2. Installation

Note: Assignment of room thermostats to Master Con-

troller 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 out-

puts if needed by repeating the installation process.

Instruction CF-RD Room Thermostat with Display

Danfoss Heating Solutions VIUHQ602 © Danfoss 03/2011

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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

Cooling icon *

AUTO Automatic change-over icon *

Heating icon *

* Icon only visible if the thermostat is deﬁned as Master

Thermostat for sequential control of heating and cooling

(see chapter 7).

Setting of temperatures (ﬁg. 1)

• The actual room temperature is shown in the display

as default.

• Press the up/down selector  to set the desired room

temperature value, SET is shown in the display.

• When releasing the up/down selector  the display

returns to actual room temperature.

Instruction CF-RD Room Thermostat with Display

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Instruction CF-RD Room Thermostat with Display

Room temperature limitation

• Press and hold the push button  until SET MAX is

shown in the display.

• Press the up/down selector  to set the maximum

room temperature limitation.

• Press the push button  shortly, SET MIN is shown in

the display.

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 Repeater Unit (CF-RU) 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.

Danfoss Heating Solutions VIUHQ602 © Danfoss 03/2011

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Instruction CF-RD Room Thermostat with Display

5. Mounting

Placing the room thermostat (ﬁg. 3)

 Wherever possible, the room thermostat should be

installed at a place where the eﬀect of sunlight,

draught, other heaters (eg. TV’s), etc. is avoided.

Mounting with screws (ﬁg. 2)

 Back plate.

 Screw hole for wall mounting.

 Screw and wall plug.

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 .

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Instruction CF-RD Room Thermostat with Display

7. Change-over function for 3- and 4-pipe

heating/cooling systems

One of the standard CF-RD thermostats can be deﬁned

as a master thermostat for sequential control of heating

and cooling stages, according to the room temperature.

This function is only available via CF-RC Remote Controller

(see instruction for CF-RC).

8. 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) 2-3 years

Ambient temperature 0-50°C

IP class 21

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Instruction CF-RD Room Thermostat with Display

9. 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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Instruction CF-RD Room Thermostat with Display

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Instruction CF-RD Room Thermostat with Display

Fig. 1

A1

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Instruction CF-RD Room Thermostat with Display

Fig. 2

Fig. 3

1,5 m.

A2

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Instruction CF-RD Room Thermostat with Display

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Instruction CF-RD Room Thermostat with Display

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Danfoss CF-RD Room Thermostat Installation guide

Danfoss CF-RD Room Thermostat Installation guide

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