6. Remove jacket top, flue collector, and baffle.
11. Lift heat exchanger straight up from combustion
2. Remove screws and burner hold down bracket.
CAUTION! DO NOT enlarge hole in pilot orifice.
4. Orifices usually do not need to be replaced. To
5. Reverse above procedure to re-install.
MAIN BURNER AND ORIFICE REMOVAL
moval procedure).
burner hold down bracket and spacer can become
8. Remove capillary bulb from inlet/outlet header.
Pilot
ROBERTSHAW PILOT
ally necessitates replacement of these parts.
2. Disconnect pilot tubing from gas valve.
header.
Orifice
Pilot
6. Disconnect wires that terminate at gas valve, and
HEAT EXCHANGER REMOVAL
distorted from direct flame impingement and this usu-
from unit.
BURNER DRAWER REMOVAL
9. Disconnect press switch tube from inlet/outlet
5. Remove pilot orifice and air opening (Honeywell
sure switch.
through orifice. Do not enlarge hole. To remove
MV unit only), and clean with wire or small brush.
5. Remove outdoor stackless top or indoor stack top
8. Reverse above procedure to reinstall.
GAS VALVE REMOVAL
Fig. # 8102.0s
3. Lift burners from slotted spacers and slide from
orifices. Clean with a wire brush.
4. Remove manifold from gas valve.
3. Loosen and remove flange bolts.
HONEYWELL PILOT
3. Remove gas valve with manifold from burner tray.
Fig. # 8045.1
3. Disconnect pilot bracket from burner shield.
7. Slide out burner tray.
1. Remove burner drawer. (See burner drawer re-
4. Disconnect gas line from gas valve.
2. Drain heat exchanger.
thermal fuse.
20
1. Shut water, gas, and electricity off, close valves and
moval procedure).
1. Shut off main electrical power switch to heater.
orifice, use a socket wrench and remove from
10. Disconnect hi-limit wire from thermostat, and pres-
Orifice
NOTE: If the heat exchanger is sooted badly, the
Opening
6. Reverse above procedure to re-install.
2. Disconnect pilot tubing, disconnect wires from gas
5. Remove (2) screws that mount burner tray to unit.
procedure).
clean, run either copper wire or wood toothpick
manifold. DO NOT overtighten when reinstalling.
PILOT REMOVAL AND CLEANING
valve.
header. Remove drain valve from rear header
1. Remove burner drawer. (See burner drawer re-
3. Remove front door.
7. Remove upper front jacket panel, and disconnect
12. Reverse above procedure to re-install.
1. Remove burner tray. (See burner tray removal
2. Shut off gas upstream of heater.
4. Remove flange and inlet/outlet pipes from the
wires at toggle switch.
chamber, using caution not to damage refractory.
Air
4. Remove pilot from bracket.
relieve pressure.
<< < [Pag.20] > >>
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