Installation guide

Notes for Fig. 54-61
1. Heat pump MUST have a high pressure switch for dual _i/el applications.
2. Refer to outdoor equipment Installation Instlq./ctions _br additional inibnnation and setup procedure.
3. Select the I'ZONE_' position on the two-speed heat pump control.
4. Outdoor Air Temperature Sensor must be attached in all dual fuel applications.
5. Dip switch No. 1 on Themfidistat should be set in OFF position for air conditioner installations. This is iSctor?- defhult
6. Dip switch No. 1 on Thennidistat should be set in ON position for heat pmnp installations.
7. Dip switch No. 2 on Thennidistat should be set in OFF position i\_r single-speed compressor operation.
This is ihcto_ de_hult
8. Dip switch No. 2 on Thermidistat should be set in ON position for two-speed compressor operation.
9. Configuration Option No. 10 1'Dual Fuel Selection _' must be turned ON in all dual ihel applications.
10. NO connection should be made to the furnace HUM terminal when using a Thermidistat.
11. Optional connection. If wire is connected, dip switch SWI=2 on furnace control should be set in ON position
to allow ThermidistatiThem_ostat to control _hmace staging.
12. Optional connection. If wire is connected, ACRDJ jmnper on furnace control should be removed to allow
ThernfidistatiThemaostat to control outdoor unit staging.
13. Furnace must control its own high-stage heating operation via [hrnace control algorithm. This is factory default.
14. The RvS Sensing terminal '%" should not be connected. This is internally used to sense dei?ost operation.
15. DO NOT SELECT the "FURNACE INTERFACE" or "BALANCE POINT" option on the two-speed heat pump
control hoard. This is controlled internally by the ThennidistatiDual Fuel Thermostat.
16. Dip switch D on Dual Fuel Thermostat should be set in OFF position ibr single=speed compressor operation.
This is ihctory defhult
17. Dip switch D on Dual Fuel Thermostat should be set in ON position for two-speed compressor operation.
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