8
VI.UH.L1.52
Produced by Danfoss Floor Heating Hydronics 08.2008
Instruction  CF-RS Standard Room Thermostat
Initiate transmission test on Room 
Thermostat - g. 1
• Press the push button 
• LED   goes ON
Link test is satisfactory
• LED   goes OFF
Link test is unsatisfactory 
• LED   ashes 5 times
No Link connection to Room  
Thermostat
• Try to relocate Room Thermostat in the room
•  Or install Repeater Unit (CF-RU) and locate be-
tween Master Controller and Room Thermostat
Note: Master Controller output LED(s)    connect-
ed to the room thermostat, ash(es) during Link test 
3. Transmission Test