Adp HED Series Installation Instructions Manual page 12

WARNING
Electric shock hazard. Can cause injury
Electric shock hazard. Can cause
or death. Before attempting to perform
injury or death. Before attempting to
any service or maintenance, turn the
perform any service or maintenance,
electrical
turn the electrical power to unit OFF
disconnect switch(es). Unit may have
at disconnect switch(es). Unit may
multiple power supplies.
have multiple power supplies.
WARNING
Danger of explosion and fire. Can cause Danger of explosion and fire. Can
injury or product or property damage. cause injury or product or property
You must
damage. You must follow these
exactly.
instructions exactly.
BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by
hand, do not try to repair it, call a qualified service
technician. Force or attempted repair may result in a
fire or explosion.
These duct heaters are equipped with an automatic
spark ignition system. There is no pilot. In case of a
safety shutdown, move thermostat switch to OFF, then
return the thermostat switch to HEAT position.
GAS VALVE OPERATION FOR HONEYWELL
VR8205/VR8305 SERIES GAS VALVE (FIG 9)
AND WHITE RODGERS 36 SERIES GAS VALVE
(FIG 10)
1 − STOP! Read the safety information at the
beginning of this section.
2 − Set thermostat to lowest setting.
3 − Turn off all electrical power to appliance.
4 − This appliance is equipped with an ignition device
which automatically lights burners. DO NOT
attempt to light the burners manually.
5 − Honeywell VR8205 series, turn manual knob on
gas valve clockwise to OFF. Do not force. For
White Rodgers 36 series gas valve, move lever to
OFF.
power to unit OFF
follow these instructions
6 − 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.
7 − Honeywell VR8205 series gas valve, turn manual
at
knob on gas valve counterclockwise to ON. Do
not force. For White Rodgers 36 series gas valve,
turn lever to ON.
8 − Turn on all electric power to unit.
9 − Set thermostat to desired setting.
10 − The combustion air inducer will start. The burners
will light within 40 seconds.
11 − If unit does not light first time (gas line not fully
purged) it will attempt up to two more ignitions
before locking out.
12 − If lockout occurs, repeat steps 1 through 8.
13 − If appliance still will not operate, follow the
instructions "To Turn Off Gas to Unit" and call
your service technician or gas supplier.
HONEYWELL VR8205/VR8305 SERIES GAS VALVE
MANIFOLD PRESSURE ADJUSTMENT SCREW
INLET
PRESSURE TAP
12
MANIFOLD
PRESSURE
ON
OFF
GAS VALVE SHOWN IN OFF POSITION
FIGURE 9
FIGURE 10
TAP