58TN0B/58TN1B: 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.
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test (Ct) from menu select buttons to start the component test
sequence. Once initiated the furnace control will perform the test
sequence as shown in Table 16. Once complete, connect
thermostat wire to R terminal on control board and re-install
blower door.
4. Operate furnace per instruction on door.
5. Verify furnace shut down by lowering thermostat setting below
room temperature.
6. Verify furnace restarts by raising thermostat setting above room
temperature.
WIRING DIAGRAM
A230366
Fig. 47 – Wiring Diagram
Adjustments
Furnace gas input rate on rating plate is for installations at altitudes up to
2000 Ft. (610 M). Furnace input rate must be within +/-2 percent of
furnace rating plate input. For altitudes above 5500 Ft. (1676 M), a
field-supplied high altitude pressure switch is required. Perform the
following steps:
1. Determine the correct gas input rate.
The input rating for altitudes above 2,000 ft. (610 M) must be
reduced by 4 percent for each 1,000 ft. (305 M) above sea level.
For installations below 2000 Ft. (610 M), refer to the unit rating
Table 16 – 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.
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 start. Check for thermostat inputs or faults, and
system status is Idle (
iDl).
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
DO NOT bottom out gas valve regulator adjusting screw. This can
result in unregulated manifold pressure and result in excess overfire and
heat exchanger failures.
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