46
JACKET TOP
REMOVAL
FLUE COLLECTOR
REMOVAL
ACCESS
PANEL
REMOVAL
ACCESS
PANEL
REMOVAL
Fig. 40: Heat Exchanger Removal
12. Heater cycled with thermostat? Raise to highest
setting and verify heater goes through normal
start-up cycle. Reduce to lowest setting and verify
heater goes off.
13. Observed several operating cycles for proper
operation?
14. Set room thermostat or tankstat to desired temper-
ature?
15. Reviewed all instructions shipped with this heater
with owner or maintenance person, returned to
envelope and given to owner?
Air Filter Inspection/Removal
1. Turn power off.
2. Locate the Air Filter panel below the air intake
duct.
3. Remove the (4) screws holding the panel in place.
4. Pull the air filter out for inspection. Replace if nec-
essary.
5. Replace the panel and screws before operating.
Fig. 39: Inspect the Air Filter
Heat Exchanger Removal
Refer to Fig. 40 for the following procedure.
1. Before beginning, make sure the heater is cool to
the touch. Shut water, gas and electricity off, close
valves and relieve pressure, then remove the relief
valve. Remove side inspection panels.
2. Remove screw behind inspection panels holding
the jacket top down.
3. Remove the front panel. Remove two additional
screws holding the jacket top to the top support.
4. Disconnect vent pipe from the flue exhaust and set
aside.
5. Remove jacket top, then disconnect vent switch
hose.
6. Remove two rows of screws holding the flue col-
lector to the combustion chamber. Remove two
additional screws located on the front combustion
panel. Cut any silicone holding the flue collector
and heat exchanger in place.
Summary of Contents for HI DELTA HD401
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Page 37: ...37 WIRING DIAGRAM MODELS HD101 HD151 TYPE H...
Page 38: ...38 WIRING DIAGRAM MODELS HD201 HD401 TYPE WH...
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