Installation Manual

This option allows the furnace to be exercised. First, a low heat run time and high

heat run time are selected. The furnace will execute its ignition start--up sequence.

This sequence will be displayed o n the screen. After the gas valve and blower

motor turn on, the screen will show the current operating status of the furnace. After

the selections are made, touch START.

S Low Heat: Selectable from 0 to 120 minutes

d Default = 5 minutes

S High Heat: Selectable from 0 to 120 minutes

d Default = 5 minutes

6.4.3. Hydronic

This option allows the hydronic heat relay to be exercised. First, it will energize the

relay and turns on the blower. This sequence will be displayed on the screen. After

the selections are made, touch START.

S Hydronic heater check: Selectable from 0 to 120 minutes

d Default = 5 minutes

6.4.4. Air Conditioning

This option allows the air conditioner to be exercised. With a 2--stage AC unit, a

low cool and a high cool run time are independently selectable to exercise. The

display will change to show the AC operating status. After the selections are made,

touch START.

For 18VS heat pumps, you can select the stage at which the heat pump will

exercise. During the checkout, the stage and time can be changed by pressing the

Change button on the checkout status screen.

NOTE: Airflows during Checkout modes are fixed to the EFFICIENCY setting

and are independent of other airflow settings. To view airflows for normal air

conditioning cooling mode, exit the CHECKOUT screen and apply a heating

demand to the system.