Robertshaw 9720i - Manual (Page 20)

INSTALLER settings (continued)
AUXILIARY HEAT
The 9720i can be set to use your 2H/2C heat pump internal auxiliary heating or to use an
external add-on source. The add-on feature will be used most often when a single stage heat
pump uses a gas or electric furnace as its second stage of heating.
RESIDUAL COOL
In order to get greater efficiency from the cooling system, the fan can be programmed to run for
0 (OFF), 30, 60, 90, or 120 seconds after the air conditioner has shut off.
BALANCE POINTS
This screen will appear only when the optional outdoor sensor (9025i) is connected to the
thermostat. When this sensor is used with the 9720i, you can set the lower and upper
temperatures to disable or enable 2nd stage heat.
AUTO CHANGEOVER
When turned on, the thermostat will switch automatically between heating and cooling to maintain
the optimal temperature in your home.
20
INSTALL MENU SELECT
AUTO CHANGEOVER
DISABLE
ENABLE
INSTALL MENU SELECT
BALANCE POINTS
LOW BALANCE 45 ˚F
HIGH BALANCE 95 ˚F
INSTALL MENU SELECT
AUXILIARY HEAT
STANDARD - COMP. =ON
ADD ON - COMP. =OFF
INSTALL MENU SELECT
RESIDUAL COOL
SECONDS DELAY
60
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