Model LG & LD Pool and Spa Heater | Page 11 |
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1.Remove heater door.
2.If there is a vent cap or drafthood (indoor) on top of the heater, remove it.
3.Remove all 8
4.Remove rainshield assembly and set it aside.
5.Remove screws that fasten the gap closures to the jacket and put them aside. Remove gap closures.
6.Remove the screws securing the two flue collec- tor hold down clamps and remove the clamps (see Figure 13). Remove flue collector.
7.Remove the three rubber jacket/plug grommets and drain plugs (see Figure 12). One is located under the water connections on the right side. The other two are on the left side toward the front of the heater.
8.Tag and disconnect the white wire on the pressure switch (PS) and the white wire on the Fireman's switch terminal (see Figure 6 or 7) which leads to the high limit switch.
9.Remove plastic tie wraps and pull the white wires out of the front compartment through the vesti- bule cover and coil them on the heat exchanger.
10.Unscrew the brass compression fitting securing the pressure switch to the inlet/outlet header. Remove tube from header and gently bend it out of the way.
11.Loosen the screw securing the temperature sensing bulb retainer bracket. Slide the retainer bracket off the bulb flange and remove the bulb from the header
(see Figure 14). Pull pressure switch tube through the hole in the vestibule cover and into the vesti- bule (controls compartment), then pull thermostat bulb assembly through same hole (see Figure 15).
12.When removing the heat exchanger from the heater, the end baffles of the heat exchanger must be removed. There are two baffles covering part of the front and rear tubes of the heat exchanger. Each baffle is held in place by two screws which mount to the top of the combustion chamber wall. Remove the screws and the baffles before at- tempting to lift the heat exchanger out of the heater (see Figure 16).
Caution
It may be necessary to have help lifting the
heat exchanger out and replacing it.
HOLD DOWN
CLAMP
IN/OUT HEADER
BRACKET
Figure 13. Flue collector hold-down brackets.
Figure 14. Temperature sensing bulb.
(U.S. MODELS |
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LEFT | RIGHT |
VESTIBULE | VESTIBULE |
COVER | COVER |
FRONT | PLASTIC BUSHING |