Installer settings (continued) – Robertshaw 9820I User Manual
Page 22
INSTALLER settings (continued)
AUXILIARY HEAT
The 9820i can be set to use your 2H/2C heat pump internal auxiliary heating or to use an exter-
nal 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 9820i, 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.
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INSTALL MENU
SELECT
AUTO CHANGEOVER
DISABLE
ENABLE
INSTALL MENU
SELECT
AUXILIARY HEAT
STANDARD - COMP. =ON
ADD ON - COMP. =OFF
INSTALL MENU
SELECT
RESIDUAL COOL
SECONDS DELAY
60
INSTALL MENU
SELECT
BALANCE POINTS
LOW BALANCE
45
˚F
HIGH BALANCE
95
˚F