59MN7C: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
50
WIRING DIAGRAM
A230349
Fig. 60 – Wiring Diagram
Table 19 – Test Sequence
Display Operating Mode Function
tSt
Test
Confirms start of Component Test mode.
PUr
Purge
Inducer ON High for 10 seconds before next stage. Inducer remains ON for test duration.
Gas Valve After 15 seconds - Gas valve communication check for 15 seconds
HSi
Hot Surface Igniter
Hot Surface Igniter ON for 15 seconds, then OFF.
Fn
Fan
Blower ON at 50% torque for 10 seconds, then OFF.
End
End Test
All component OFF except for Inducer ON Low for 10 seconds. Display returns to
iDl. If a thermostat input
is detected or fault condition activates during the test sequence, control will abort and display
End for 6
seconds.
Err
Error
Displayed if component test is not able to start. Check for thermostat inputs or faults, and system status is
Idle (
iDl).
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