Carrier 160 Series - Page 27

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. Optional connection: If wire is connected, ACRDJ jumper on furnace control should be removed to allow Thermidistat/Thermostat to
NOTES FOR FIGURES 27 - 34
. Heat pump MUST have a high pressure switch for dual fuel applications.
. Refer to outdoor equipment Installation Instructions for additional information and setup procedure.
. If the heat pump date code is 1501E or earlier, select the “ZONE” position on the two-speed heat pump control. Heat pumps having
date codes 1601E and later do not have or require a “ZONE” selection.
. Outdoor Air Temperature Sensor must be attached in all dual fuel applications.
. Dip switch No. 1 on Thermidistat should be set in OFF position for air conditioner installations. This is factory default.
. Dip switch No. 1 on Thermidistat should be set in ON position for heat pump installations.
. Dip switch No. 2 on Thermidistat should be set in OFF position for single-speed compressor operation. This is factory default.
. Dip switch No. 2 on Thermidistat should be set in ON position for two-speed compressor operation.
. Configuration Option No, 10 “Dual Fuel Selection” must be turned ON in all dual fuel applications.
. NO connection should be made to the furnace HUM terminal when using a Thermidistat.
. Optional connection: If wire is connected, dip switch SW1-2 on furnace control should be set in ON position to allow Thermidistat/
Thermostat to control furnace staging.
control outdoor unit staging.
58CV
. Furnace must control its own high-stage heating operation via furnace control algorithm.
. The RVS Sensing terminal “L” should not be connected. This is internally used to sense defrost operation.
. DO NOT SELECT the “FURNACE INTERFACE” or “BALANCE POINT” option on the two-speed heat pump control board. This
is controlled internally by the Thermidistat/Dual Fuel Thermostat.
. Dip switch D on Dual Fuel Thermostat should be set in OFF position for single-speed compressor operation. This is factory default.
. Dip switch D on Dual Fuel Thermostat should be set in ON position for two-speed compressor operation.