System Test Mode - Aprilaire 8400 Series Safety & Installation Instructions

SETUp & TESTINg

SYSTEm TEST mODE

The system test mode is used to test a system after installation. The outputs of the thermostat can be manually
activated one at a time to test their function. The following instructions show how to enter the test mode and turn
outputs on and off . The charts on the following pages show all of the options for each model .
The test steps are:
Test
Number
50
51
52
53
16
61000652C 8400 Tstat Install.indd 16
Heat/Cool models
8444, 8463, 8448HC, 8466HC
Heating (W) (W2)
Cooling (Y) (Y2)
Fan (G)
Heat pump models
8446, 8465, 8448Hp, 8466Hp
Aux Heating (W) (W2)
Compressor Cooling (Y) (Y2)
Compressor Heating (Y) (Y2)
Fan (G)
10/13/09 11:09:00 AM