AUX EL Series Instruções de Operação descarregar pdf (Página 31)

09/11/2014 29 NI401

Undersized geothermal heat pump with fossil fuel furnace.

• Mode Dial: C

• SW Over Dial: 1=-15°F/ 2=-10°F/ 3=0°F/ 4=5°F/ 5=10°F/ 6=20°F/ 7=30°F

• AUX EL: 0

• SOT Dial: 0=30min 1=90min 2=180min 3=270min

• Thermostat type: Conventional 1H/2C

Geothermal heat pump with fossil fuel furnace.

• Mode Dial: C

• SW Over Dial: 0

• AUX EL: 0

• SOT Dial: 0=30min 1=90min 2=180min 3=270min

• Thermostat type: Conventional 1H/2C

Operation Indicators

Front Panel LED’s

- Hi-limit – when the AUX EL hi-limit probe (automatic reset or manual reset)

opens this top red LED is on. The electric elements will be

interrupted via a safety relay circuit whenever this HL LED is

illuminated (mode B only).

- PWR ON – indicates good fuse and 24-volt power source from the furnace

terminal block.

- See below for bad sensor indication.

- Status mode – in some ways this can be a utility load control indicator, but

there are additional programmable functions which cause this unit

to go to standby (see HC112 EZGEO section and sequence charts).

- In addition this LED provides monitor for the two alarm conditions.

 Dead compressor – fast pulsing, 1/10 second

 ICM fault – slow pulsing, 1 second

- HP-Y1 – the output “Y” screw terminal is active at 24 volts high. This

provides the “Y” input to the ICM compressor monitor board.

Compressor will react as a function of this ICM safety board.

- HP-Y2 – not used on single stage models.

- T-stat call – the room thermostat W or Y is active or 24 volts high.

- Gas call – the furnace “W” or terminal block feeding furnace W, 24 volts

high.

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AUX EL Series Instruções de Operação Página 31