1. Be sure gas and electrical supplies to furnace are off.
2. Remove caps that conceal adjustment screws for high-and low-heat stage gas valve regulators. (See Fig. 16B.)
3. Turn low-heat stage adjusting screw (3/32-in. hex allen wrench) clockwise (in) 1 full turn. This will increase the manifold pressure closer
to the propane low-heat set point.
4. Turn high-heat stage adjusting screw (3/32-in. hex allen wrench) clockwise (in) 2 full turns. This will increase the manifold pressure closer
to the propane high-heat set point.
5. Replace caps that conceal gas valve regulator adjustment screws.
PROCEDURE 3—INSTALL LOW GAS PRESSURE SWITCH (LGPS)
NOTE:
Use propane-gas-resistant pipe dope on all connections to prevent gas leaks. DO NOT use Teflon tape.
1. Be sure main gas and electric supplies to furnace are off.
2. Remove 1/8-in. pipe plug from inlet pressure tap on gas valve. (See Fig. 16A and 16B.) DO NOT DISCARD 1/8
″
PLUG.
3. Apply pipe dope sparingly to one end of 1/8
″
brass male coupling (provided in kit) and install the doped end in 1/8-in. tapped opening in
gas valve inlet pressure-tap. Tighten fitting with a small open-end wrench. (See Fig. 7A.)
4. Apply pipe dope sparingly to opposite end of the 1/8
″
brass coupling (provided in kit). Install the female end of the female x female x male
tee on the brass coupling. Tighten coupling finger tight. Use a small open-end wrench for final tightening.
5. Apply pipe dope sparingly to male end of brass tee. Install propane low gas pressure switch (provided in kit) on male end of the female
x female x male tee. Tighten switch finger tight. Use a small open-end wrench on base of pressure switch for final tightening. When pressure
switch is tight, switch terminals should point as shown in Fig. 7B relative to gas valve and clear control compartment access door.
6. Connect a manometer to the open end of the tee installed in the gas valve. (See Fig. 7A.)
PROCEDURE 4—CHECK INLET GAS PRESSURE
NOTE:
This kit is to be used only when inlet gas pressure is between 11.0-in. w.c. and 13.6-in. wc.
1. Verify manometer is connected to inlet pressure tap on gas valve. (See Fig. 7A.)
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in flame rollout, overheating the heat exchangers, etc. and reduce unit life.
DO NOT operate furnace more than 1 minute to check inlet gas pressure, as conversion is not complete at this time.
2. Turn on furnace power supply.
3. Turn gas supply manual shutoff valve to ON position.
4. Turn furnace gas valve switch to ON position.
5. Jumper thermostat connections:
a. Single Stage furnace control-jumper R-W thermostat connections
b. Two-Stage and Variable Speed furnace control-jumper R-W/W1 and R-W2 thermostat connections
6. When main burners ignite, confirm inlet gas pressure is between 11.0-in. w.c. and 13.6-in. w.c.
7. Remove jumper across R to W or R-W/W1 and R-W2 thermostat connections to terminate call for heat.
8. Turn furnace gas valve switch to OFF position.
REGULATOR SPRING
(PROPANE – WHITE, 6 TURNS
NATURAL – SILVER, 10 TURNS)
REGULATOR
ADJUSTMENT
SCREW
REGULATOR
SEAL CAP
GAS PRESSURE
REGULATOR
ADJUSTMENT
INLET
PRESSURE TAP
ON AND
OFF SWITCH
MANIFOLD
PRESSURE TAP
A01073
Fig. 16A—Single Stage Gas Valve
ON
O
F
F
ON/OFF
SWITCH
INLET
PRESSURE
TAP
BURNER ENCLOSURE
REFERENCE PRESSURE TAP(2-STAGE
AND VARIABLE-SPEED, CONDENSING
FURNACES ONLY)
MANIFOLD
PRESSURE
TAP
LOW-HEAT
ADJUSTMENT
ALLEN SCREW
(UNDER CAP)
HIGH-HEAT
ADJUSTMENT
ALLEN SCREW
(UNDER CAP)
PLUG BUTTON
(2-STAGE AND
VARIABLE–SPEED,
NON–CONDENSING
FURNACES ONLY)
A01069
Fig. 16B—Two-Stage Gas Valve
—16—
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Содержание KGANP3001ALL
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Страница 32: ... 2004 CAC BDP 7310 W Morris St Indianapolis IN 46231 agganp31 32 Catalog No 63GA NP11 ...