Lochinvar Armor X2 AWL1500, Руководство по установке и эксплуатации

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60
12
Maintenance
Perform start-up and checks
1. Start water heater and perform checks and tests specified
in Section 10 - Start-up .
2. Verify cold fill pressure is correct and that operating
pressure does not go too high.
Check burner flame
1. Inspect flame through observation window.
2. If the flame is unsatisfactory at either high fire or low
fire, turn off water heater and allow water heater to cool
down. Remove the burners and clean them thoroughly
using a vacuum cleaner or compressed air. Do not use
compressed air to clean burners if performed inside a
building.
3. Remove the burners, reference FIG. 12-2.
4. When replacing the burners, ensure gaskets are in good
condition and positioned correctly (FIG. 12-2).
BURNER
AIR/GAS GASKET
FLAPPER VALVE
BURNER DOOR
BURNER DOOR
HEX NUT (6)
IGNITER
FLAME SENSE
IGNITER GASKET
FLAME SENSE
GASKET
FLAME SENSE
SCREW (2X)
IGNITER SCREW (2X)
DOOR FIBER
FLAPPER VALVE
SCREW (5X)
Figure 12-2 Burner Assembly
Installation & Operation Manual
Check flame signal
1. At high fire the flame signal shown on the display should
be at least 10 microamps.
2. A lower flame signal may indicate a fouled or damaged
flame sense electrode. If cleaning the flame sense electrode
does not improve, ground wiring is in good condition,
and ground continuity is satisfactory, replace the flame
sense electrode.
3. See Section 3 - Troubleshooting in the Armor X2 Service
Manual for other procedures to deal with low flame
signal.
The water heater contains ceramic fiber
materials. Use care when handling these
materials per instructions on page 62
of this manual. Failure to comply could
result in severe personal injury.

WARNING
Cleaning the heat exchanger
For recommended materials; including brush, appropriate
extension(s), refractory cover, and detailed instructions see
Table 12B - Heat Exchanger Cleaning Kits.
1. Shut down water heater:
• Follow the “To Turn Off Gas to Appliance” instructions
for the water heater in Section 10 - Startup.
• Do not drain the water heater unless it will be exposed to
freezing temperatures. If using freeze prevention fluid
in system, do not drain.
2. Allow time for the water heater to cool to room
temperature if it has been firing.
3. Remove the nuts securing the heat exchanger access
cover to the heat exchanger and set aside.
4. Remove the heat exchanger access cover, burner, and
gas/air arm assembly.
Review with owner
1. Review this maintenance schedule with the owner.
2. Emphasize the need to perform the maintenance schedule
specified in this manual.
3. Remind the owner of the need to call a licensed contractor
should the water heater or system exhibit any unusual
behavior.
4. Remind the owner to follow the proper shutdown
procedure and to schedule an annual start-up at the
beginning of the next heating season.
5. Remove the condensate hose from the heat exchanger
end. Connect a field supplied 3/4” diameter hose to
a drain pan. Using field supplied means, cover the
refractory in the back of the combustion chamber of the
heat exchanger.
6. Use a vacuum cleaner to remove any accumulation on
the appliance heating surfaces. Do not use any solvent.
7. Brush the heat exchanger while dry using a nylon
bristle brush. Caution: DO NOT use a metal brush.
Re-vacuum the heat exchanger.
8. Finish cleaning using a clean cloth dampened with
warm water. Rinse out debris with a low pressure water
supply.
9. Allow the heat exchanger to thoroughly dry.
10. Remove the field supplied rear refractory cover from the
back of the combustion chamber of the heat exchanger
and reassemble.