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Information - CHR room thermostat
The CHR is the recommended electronic room thermostat
for InLine comfort panels.
The CHR is a PI-regulator with a small P-band, suitable
for fast reacting systems. It measures and determines the
room temperature by controlling the rpm of the fan mo-
tor and hence the panel’s heat effect.
The CHR is equipped with a boost function that tempo-
rarily increases the fan speed and thus ensures quick
heating.
The heat effect to a room will turn off, when switching
off the thermostat (“
 ”). The installation will remain
protected against frost.
Technical information - CHR room thermostat
Voltage supply 24 Vdc (±4V)
Power consumption 6 mA
Temperature adjustment 5 - 30 °C
P-band 0.5 °C
Adjustment of the fan motor’s max. rpm 1,000 - 2,800 rpm
Fan motor rpm in boost function 2,800 rpm
Protection class IP20
External temperature 0 - 50 °C
Transportation temperature -20 -60 °C
Pollution level Level 2
Ball test temperature
75 °C
Software classification Class A
Dimensions (l x h x d) 85 x 86 x 42 mm
Weight 0.143 kg
Approval
73/23/EEC, 89/336/EEC, EN60730-1, EN60730-2-9, EN61000-6-3,
EN61000-6-1
20 VD.YC.D2.02 © Danfoss 01/2006
CONVEC