RCS
MODEL ZC2S
2 ZONE HVAC CONTROL UNIT
INSTALLATION AND OPERATION MANUAL
DCN 141-00240-02
7/25/03
Страница 1: ...RCS MODEL ZC2S 2 ZONE HVAC CONTROL UNIT INSTALLATION AND OPERATION MANUAL DCN 141 00240 02 7 25 03 ...
Страница 2: ... are either battery operated or that use both sides of the 24VAC power they have R and C terminals from the HVAC system DO NOT USE POWER STEALING THERMOSTATS Typically these thermostats steal power from the W or Heat connection on the HVAC system THESE WILL NOT WORK WITH THE ZC2S ZONE CONTROL UNIT It is also recommended that you do not use older style mechanical thermostats that use anticipator ci...
Страница 3: ...ne This equalizer cycle will reduce the heat buildup upstairs and put the heat back downstairs where it is still needed The net effect is a more comfortable temperature in the upstairs zone and an energy saving reuse of the excess heat in the downstairs zone The Thermal Equalizer feature monitors Zone 1 for heat run times and this zone must be the downstairs zone When the Thermal Equalizer cycle i...
Страница 4: ... 18 gauge thermostat wire for the dampers Power ZC2S Control Units are powered from the HVAC system s 24VAC R and C common terminals No external transformer is required Total damper draw must be limited to 1 Amp per zone Fuse The controller is supplied with a 2AG style 2 Amp fuse Thermostat Wiring Connect the zone thermostats to their respective zone input terminals J1 J2 Both the 24VAC Common C a...
Страница 5: ...e Select Select OFF for Standard Gas systems no fan with heat calls Select ON for Electric Heating systems fan with heat calls SW1 Position 3 4 Thermal Equalizer Mode Select These two dipswitch positions determine the length of time the equalizer cycle will run after it has been tripped on by the Heat Run Time timeout C 24VAC COM R 24VAC G FAN W HEAT Y COMP R 24VAC G FAN W HEAT Y COMPRESSOR RED GR...
Страница 6: ...ermine the length of time that a Zone 1 Heat Call can be on before it times out and is interrupted by an equalizer cycle OFF ON 5 Off Heat Run Time 8 Min 6 Off 5 On Heat Run Time 12 Min 6 Off 5 Off Heat Run Time 16 Min 6 On 5 On Heat Run Time 20 Min 6 On SW1 FIG 5 DIPSWITCH SW1 EQUALIZER HEAT RUN TIME SETTINGS HRT1 HRT2 ...
Страница 7: ...MP Standard HVAC System Outdoor Compressor C Y RESET STATUS LED The status LED shows normal operation by flashing slowly If the Status LED is not flashing check power fuse Two flashes indicate that the Equalizer run cycle is on Three flashes indicate that the Short cycle protection is on SHORT CYCLE PROTECTION SCP DELAY The control unit protects the compressor from short cycling by a 5 minute dela...
