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ENV-VST-C - Operation / Reference Guide
AxLink Channels (Cont.)
Channel Type Function Description
219 CMD/FDBK HVAC State Auto Set the HVAC state to auto while the channel is active, ON.
220 CMD/FDBK HVAC State Cool Set the HVAC state to cool while the channel is active, ON.
221 CMD/FDBK HVAC State Heat Set the HVAC state to heat while the channel is active, ON.
222 CMD/FDBK HVAC State Off Set the HVAC state to off while the channel is active, ON.
223 CMD/FDBK HVAC State Emergency
Heat
Set the HVAC state to Emergency Heat while the channel is active,
ON.
224 FDBK HVAC Cool Status Feedback, HVAC Cool Status changed
Channel ON: A/C is On,
Channel OFF: A/C is Off.
225 FDBK HVAC Heat Status Feedback, HVAC Heat Status changed
Channel ON: Heat is On,
Channel OFF: Heat is Off.
226 Not Used
227 FDBK HVAC Emergency Heat
Status
Feedback, HVAC Emergency Heat Status changed
Channel ON: Emergency Heat is On,
Channel OFF: Emergency Heat is Off.
228 CMD/FDBK Humidify State Auto Set the humidify state to auto while the channel is active, ON.
229 CMD/FDBK Humidify State
Dehumidify
Set the humidify state to dehumidify while the channel is active,
ON.
230 CMD/FDBK Humidify State
Humidify
Set the humidify state to humidify while the channel is active, ON.
231 CMD/FDBK Humidify State Off Set the humidify state to off while the channel is active, ON.
232 FDBK Dehumidify Status Feedback, Dehumidify Status changed
Channel ON: Dehumidifier is On,
Channel OFF: Dehumidifier is Off.
233 FDBK Humidify Status Feedback, Humidify Status changed
Channel ON: Humidifier is On,
Channel OFF: Humidifier is Off.
234-239 Not Used
240 FDBK Reversing valve (cool)
relay
Provides feedback from relay O.
241 FDBK Reversing valve (heat)
relay
Provides feedback from relay B.
242 FDBK 1st stage compressor
relay
Provides feedback from relay Y1.
243 FDBK 2nd stage compressor
relay
Provides feedback from relay Y2.
244 FDBK 1st stage heat relay.
Also the heat pump
relay for heat pump
systems.
Provides feedback from relay W1.
245 FDBK 2nd stage heat relay Provides feedback from relay W2.
246 FDBK Dehumidify relay Provides feedback from relay DEH.
247 FDBK Humidify relay Provides feedback from relay HUM.
248 FDBK Fan relay 1 Provides feedback from relay G1.
249 FDBK Fan relay 2 Provides feedback from relay G2.
250 FDBK Fan relay 3 Provides feedback from relay G3.
251-255 Not Used