Both R and C must be connected for proper operation.īrownout condition or too low of voltage to thermostat. Some commercial heat pumps require that Heat Pump Option on thermostat is turned OFF.Ĭheck for 24vac between R and C at terminal connections. When controlling a commercial heat pump unit, unit runs in reverse or heating is always on. Configure the thermostat for non-heat pump operation The thermostat is configured for a heat pump. When calling for cooling, both heating and cooling are energized. When controlling a heat pump, heat comes on during cooling cycle.Ĭonfigure thermostat for heat pump operation Connect a 270 ohm, 10 watt power resistor at the air-conditioning equipment between terminals Y and C (non-heat pump applications only). When using 4 wires (R,G,W,Y), the heating equipment tries repeatedly to turn on, but can- not. Connect a 270 ohm, 10 watt power resistor at the air conditioning equipment between terminals W and C (non-heat pump applications only). When using 4 wires (R,G,W,Y), the cooling equipment tries repeatedly to turn on, but can- not. If 24 vac is not present, replace the thermostat. If present, thermostat is operating correctly and problem is with wiring or equipment. Increase heating set point to 10 degrees above room temperature. Check for Compressor Cycle per Hour Limit. Decrease cooling set point to 10 degrees below room temperature. Terminal R must be connected for proper thermostat operation. Carrier Debonair-33CS Thermostat TroubleshootingĬheck for 24 vac at the R terminal connection. The list of error codes for issue identification is also included. For your convenience, they are present in the form of tables: they enlist the most widespread technical issues and provide detailed instructions for fixing the problems manually or via WiFi connection.
#Carrier thermostat tstatccprh01 b manual manual#
Below, you can find a troubleshooting manual for some Carrier Thermostat device models.
0 kommentar(er)
