HAI OMNISTAT RC-112, Руководство по установке, Страница: 4 / 16

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TYPICAL WIRING DIAGRAMS
CAUTION:
Be sure to disconnect the power to the control transformer before removing or installing thermostat.
Do not short compressor relays, fan relay, auxiliary heat relay, or reversing valve...even momentarily. This will
blow a non-replaceable fuse.
Do not attempt to hook up to live circuits. An accidental connection to a component on the thermostat circuit
board could cause damage to the thermostat.
Figure 4 - Thermostat power-up for test or demonstration purposes
NOTES
1)
When the RC-112 calls for both stages (or high speed on a two speed heat pump), both compressor
outputs Y1 and Y2 are energized.
2)
"O" Terminal is energized for cooling
"B" Terminal is energized for heating
In most applications, the reversing valve is energized for cooling and should be connected to the "O"
terminal. If the heat pump requires the reversing valve to be energized for heating, connect the reversing
valve to the "B" terminal.
3)
"X1" and "X2" are connected to a 24VAC Red LED, most often used to indicate a fault with the heat
pump compressor.
4)
The Emergency Heat Relay (E Terminal) and outdoor thermostats (usually accessories to a heat pump),
are not used. The RC-112 automatically controls auxiliary heat efficiently.
The RC-112 requires at least 1 stage of auxiliary heat enabled at all times. If the heat pump is equipped
with an outdoor thermostat, it should be removed from the auxiliary heat circuit, or reconfigured so that it
can only disable 2nd and 3rd stage of auxiliary heat.