SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: (F/G)9MVE
Specifications subject to change without notice.
440 04 4800 00 34
Figure 24
HP with Variable Speed Furnace,
Humidifier, and Dehumidification
L09F030
NOTES FOR FIGURES Figure 18 − Figure 24
1. Refer to outdoor equipment Installation Instructions for additional information and setup procedure.
2. Outdoor Air Temperature Sensor must be attached in all dual fuel applications.
3. Refer to ICP thermostat Installation Instructions for additional information and setup procedure.
4. When using a Humidity Sensing Thermostat, set DEHUMIDIFY OPTIONS to H DE−ENRGZD FOR DEHUM.
5. Optional connection. If wire is connected SW1−2 on VS furnace control should be set in ON position to allow ICP Thermostat
to control the furnace staging.
6. HUM connection is 24 VAC and is energized when the blower turns on during a call for heat.
7. When connecting 115 VAC to humidifier use a separate 115 VAC supply.
8. When using a humidifier on a HP installation connect humidifier to hot water.
9. Thermostat signals may vary. Consult thermostat installation instructions for more information.
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