Temperature Rise
Check the temperature rise and, if necessary, adjust the blower speed to maintain the temperature rise within the range shown on the unit rating plate.
In
In
0.26amps and install a
Electrical
1 − Check all wiring for loose connections.
2 − Check for the correct voltage at the furnace (furnace operating).
3 − Check
Nameplate __________Actual__________
Flue And Chimney
1 − Check flue pipe, chimney and all connections for tight- ness and to make sure there is no blockage.
2 − Check unit for proper draft.
3 − Are pressure switches closed? Obstructed flue will open pressure switches and cause unit to shut down. Check flue and outlet for blockages.
4 − Reset manual flame rollout switches on burner box covers.
Burner Flame Adjustment
The G24−200 burner flame is not adjustable; however, the flame should be inspected at the beginning of each heating season. If necessary, clean the burners. Burner flame should be blue when burning natural gas. See figure 21.
BURNER FLAME
FLAME
FLAME APPEARS |
|
BLUE IF BURNING |
|
NAT. GAS. | HEAT |
| |
| EXCHANGER |
BURNER | TUBE |
|
VEST
PANEL
FIGURE 21
Failure To Operate
If unit fails to operate check the following: 1 − Is the thermostat calling for heat?
2 − Are access panels securely in place?
3 − Is the main disconnect switch closed?
4 − Is there a blown fuse or tripped circuit breaker?
5 − Are the filters dirty or plugged? Dirty or plugged filters will cause the limit controls to shut the unit off.
6 − Is gas turned on at the meter?
7 − Is the manual main
8 − Are the internal manual
9 − Are the unit ignition systems in lock out mode? If unit locks out again, call serviceman to inspect unit for block- ages.
Page 36