Enviro G42GI, Руководство пользователя

Страница: 19 / 56

19
a) Remove the existing stepper motor using a T-20 screwdriver (see Figure 24).
b) Remove the rubber diaphragm and spring within; do not reuse.
c) Install the new stepper motor with integrated diaphragm assembly using longer hardware.
d) Plug new motor into existing wiring harness.
Maintenance And Service
6. Reinstall burner, media tray, burner media, glass (if applicable), glass door, and door cover (see
m
aIntenance anD
s
erVIce
section of Owner’s Manual ).
7. Purge any air from gas line and reconnect to unit.
8. Use a small brush and apply a warm soapy water solution to all gas connections. If a gas leak is present,
bubbling will occur. Gas leaks can be repaired by using a gas approved pipe thread sealant. WARNING:
NEVER USE AN OPEN FLAME WHEN TESTING FOR GAS LEAKS.
9. Reconnect electrical power to the unit.
10. Light the pilot and recheck for leaks in the aluminum pilot line. If a leak is evident, contact your ENVIRO
dealer for a pilot line replacement. WARNING: DO NOT ATTEMPT TO FIX THIS LINE, IT MUST BE
REPLACED IF DAMAGED. The pilot should properly cover the flame sensor. If adjustment is necessary,
turn the adjustment screw in the valve (see Figure 24) clockwise to decrease and counter-clockwise to
increase until the correct flame is achieved (see Figure 14).
11. Start the main burner and verify full range of adjustment using the remote. Confirm the inlet and manifold
gas pressures are within the acceptable range using a manometer (see I
nItIal
I
nstallatIon
- g
as
l
Ine
c
onnectIon anD
t
estIng
). If this unit has been installed at an altitude higher than 2000ft (610m) it is
required to de-rate the unit accordingly.
In the USA: The appliance may be installed at higher altitudes. Please refer to your American Gas
Association guidelines which state: the sea level rated input of Gas Designed Appliances installed at
elevations above 2000 (610 m) feet is to be reduced 4% for each 1000 feet (305 m) above sea level.
Refer also to local authorities or codes which have jurisdiction in your area regarding the de-rate
guidelines.
In Canada : When the appliance is installed at elevations above 4500 feet (1372 m), the certified high
altitude rating shall be reduced at the rate of 4% for each additional 1000 feet (305 m).
Pilot Adjustment
Screw
Manifold
Pressure Tap
Inlet
Pressure Tap
Stepper
Regulator
12. MAKE SURE that the conversion labels provided are installed on or close to the rating label to signify
that the unit has been converted to a different fuel type.
Figure 23: Pilot Orientation
4. Convert the existing pilot orifice using a 7/16 inch wrench. Loosen the pilot head, rotate counter clockwise
and fully remove. Remove the existing orifice and replace with the one supplied in the kit (Figure 21). Re-
install the pilot head and tighten back to its original position (Figure 23).
5. Convert the gas valve:
Figure 24: Gas Valve Diagram