DayandNight MF Blower Specs.pdf

Modular BlowerInstallation InstructionsModeConstant Blower(Fan Switch ON)Thermostat calls forHeatSequence Of OperationThermostat to ControlBoard 24 volt StateControlElectric Heat OnlyControl FunctionG On Fan On.Off Fan Off.G&W1&W2 On Fan On, 1st Stage Of Heat On, then 2nd Stage Of Heat On.Off 2nd then1st Stage Of Heat Off. 6 sec delay, then Fan Off.Cooling Only Unit With Electric HeatConstant BlowerG On Fan On.(Fan Switch ON)Off Fan Off.Cooling Only UnitY&G On Compressor On, Fan On.(Thermostat calls forCooling) Off Compressor Off, 60 Second Delay -- Then Fan Off.Cooling Only UnitG&W1&W2 On Fan On, 1st Stage Of Heat On, then 2nd Stage Of Heat On.(Thermostat calls forHeat) Off 2nd then1st Stage Of Heat Off. 6 sec delay, then Fan Off.Heat Pump With Electric HeatHeat PumpY&G&O On Compressor On, Reversing Valve Energized, Fan On.(Thermostat calls forCooling) Off Compressor Off, 60 Second Delay And Then Fan Off.Heat Pump(Thermostat calls forHeat)Heat Pump cannotmaintain proper temp.Electric Heat TemperaturesatifisedHeat Pump(Goes into DefrostMode)Heat Pump(Room temp. satifised)Heat Pump(Emergency Heat)Y&G On Compressor On, Fan OnY&G&W1&W2 On 1st Stage Of Heat On, then 2nd Stage Of Heat OnOff2nd then 1st Stage Of Heat OffY&G&O&W1&W2 On Reversing valve switches unit to cooling, 1st Stage Of HeatOn, then 2nd Stage Of Heat OnOff Reversing valve switches back to heating, 2nd then 1st StageOf Heat OffY&G Off Compressor Off, 60 Second Delay And Then Fan Off.G&W1&W2 On Fan On, 1st Stage Of Heat On, then 2nd Stage Of Heat On.Off2nd then 1st Stage Of Heat Off. 6 sec delay, then Fan Off.NOTE: Electric Heat Elements are controlled by relays with a delay sequence from the logic board to provide sequencing between elements.Limit OperationThe temperature limit responds to over--temperature conditions in the air duct. If the temperature limit trips, the electric heater relays willbe de--energized and the fan relay will be energized. Once the limit resets, the control will resume normal operation. If the limit trips fourtimes during a single call for heat, the control will go into a 1 hour soft lockout. During the soft lockout, the fan relay will respond tothermostat inputs but the heater relays are disabled. If the control detects a limit trip during the soft lockout, the control will go into a hardlockout. Once in a hard lockout, the fan relay is locked on and the heater relays are disabled. Turning the power to the unit off and then onwill clear this state.9