508189-01
Issue 2116
Page 21 of 42
Placement and Installation
Make sure unit is installed in accordance with installation
instructions and applicable codes.
Start-Up
Preliminary and Seasonal Checks
1.
Inspect electrical wiring, both field and factory installed
for loose connections. Tighten as required.
2.
Check voltage at disconnect switch. Voltage must be
within range listed on the nameplate. If not, consult the
power company and have voltage condition corrected
before starting unit.
3.
Inspect condition of condensate traps and drain
assembly. Disassemble and clean seasonally.
Heating Start-Up
BEFORE LIGHTING
the unit, smell all around the furnace
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
The gas valve on the 80G2DFE is equipped with a gas
control switch. Use only your hand to move the switch.
Never use tools. If the the switch will not move by hand,
replace the valve. Do not try to repair it. Force or attempted
repair may result in a fire or explosion.
Shock and burn hazard.
80G2DFE units are equipped with a hot surface ignition
system. Do not attempt to light manually.
WARNING
1.
STOP!
Read the safety information at the beginning
of this section.
2.
Set the thermostat to the lowest setting.
3.
Turn off all electrical power to the unit.
4.
This furnace is equipped with an ignition device which
automatically lights the burners. Do not try to light the
burners by hand.
5.
Remove the access panel.
6.
Move gas valve switch to OFF. See Figure 13.
7.
Wait five minutes to clear out any gas. If you then
smell gas,
STOP!
Immediately call your gas supplier
from a neighbor’s phone. Follow the gas supplier’s
instructions. If you do not smell gas go to next step.
8.
Move gas valve switch to ON. See Figure 13.
Figure 13. Gas Valve
GAS VALVE SHOWN IN ON POSITION
INLET PRESSURE POST
HIGH FIRE ADJUSTMENT
SCREW
(under cap)
MANIFOLD
PRESSURE POST
9.
Replace the access panel.
10.
Turn on all electrical power to to the unit.
11.
Set the thermostat to desired setting.
NOTE:
When unit is initially started, steps 1 through
11 may need to be repeated to purge air from gas line.
12.
If the appliance will not operate, follow the instructions
“Turning Off Gas to Unit” and call your service
technician or gas supplier.
Turning Off Gas to Unit
1.
Set the thermostat to the lowest setting.
2.
Turn off all electrical power to the unit if service is to
be performed.
3.
Remove the access panel.
4.
Move gas valve switch to OFF.
5.
Replace the access panel.
Failure To Operate
If the 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 breaker?
5.
Is the filter dirty or plugged? Dirty or plugged filters will
cause the limit control to shut the unit off.
6.
Is gas turned on at the meter?
7.
Is the manual main shut-off valve open?
8.
Is the internal manual shut-off valve open?
9.
Is the unit ignition system in lockout? If the unit locks
out again, inspect the unit for blockages.
10.
Is pressure switch closed? Obstructed flue will cause
unit to shut off at pressure switch. Check flue and
outlet for blockages.
