Teledyne Laars Hi-E EPH 300, Руководство пользователя

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Page 15
Hi-E Model EPH Pool and Spa Heater
Figure 14. Removing the 4-Wire Fan Connector
Figure 15. Upper and Lower Front Panel Removal
4D. Replacing the Burner, Heat
Exchanger, and Condensate Pan
Due to the complexity of the procedures required
to replace these components, the instructions are
included in the replacement kits. The appropriate kit
numbers can be found in the parts list (see Section 5).
4E. Removing the Igniter
NOTE: One of the screws also attaches the ground
lug to the outside right panel.
1. Remove two retaining screws from the tempera-
ture control circuit board.
2. Carefully slide the temperature control circuit
board into the heater compartment.
3. On the right side of the heater, remove the three
screws that fastens the electrical junction box to
the right side panel.
4. Remove the upper front panel by removing the
screw located on the left side, inside the heater
compartment (see Fig. 15).
5. Lift the upper front panel out of the three slots and
set it aside (see Fig. 15).
6. Remove the lower front panel assembly by remov-
ing the three screws along the base of the heater,
and the four screws on the sides (see Fig. 15). Two
of these screws are inside the heater compartment.
7. Remove the hex bolts that fastens the igniter and
pull the igniter out of the heater. Make sure you do
not damage the refractory material around the
opening.
8. Install the new igniter so that the black igniter
surface doesn't touch the chassis or refractory
material when it is in place. The igniter should be
1/2 inch +1/16 inch (13 mm +1.58 mm) from the
burner surface and parallel to it (see Fig. 16).
Make sure there is no leakage from the combustion
chamber. A small leak of hot gas will erode the
leak area, make it larger, and cause a problem.
9. Install new gaskets.
10. If the igniter glows, but flame appears only briefly,
there may be a problem with the fuel supply,
igniter or ignition control, or the piping to the
venting system.
11. If a new installation or the fuel gas piping has
been serviced, remove any air in the gas supply
line, so the heater will operate normally. Using an
incorrect fuel will result in the fuel/air mixture
being wrong and a flame that is not normal. The
fuel gas must be the same as specified on the
heater rating plate.