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Hayward H350FDN Service & Installation Manual

Hayward H350FDN
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Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
41
IGNITER:
Refer to Figure 40. To remove the igniter:
1. Turn pump, gas supply, and heater power “OFF”.
2. Remove the front access panel. It is secured with (4) screws.
3. Remove the control box cover. It is secured with (2) screws.
4. Disconnect the igniter wires from the ignition control board.
5. Pull the igniter wires out of the control box through the opening in the bottom.
6. Remove the screws from the igniter access panel. Working from the underside of the panel, press the
bushing out of the hole in the sheet metal panel.
7. Slide the igniter wires through the slot on the panel and pull the panel free.
8. Remove the (2) screws that secure the igniter.


Figure 41: Flame sensor
FLAME SENSOR:

1. Turn pump, gas supply, and heater power “OFF”.
2. Remove the front access panel (4 screws).



BURNER ORIFICES:
Refer to Figure 40 as needed. To remove the igniter:
1. Turn pump, gas supply, and heater power “OFF”.
2. Disconnect the union joint in the gas supply piping outside the heater cabinet.
3. Remove the front access panel. It is secured with (4) screws.
4. Disconnect the wiring terminals from the gas valve.
5. Remove the gas manifold assembly. It is attached to the air box using (4) screws.
 
 
thread or over tighten as a leak may result.
ATTENTION:

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Hayward H350FDN Specifications

General IconGeneral
ModelH350FDN
Heating Capacity350, 000 BTU
Heat Exchanger MaterialCupro Nickel
Weight150 lbs
Efficiency82%
Ignition TypeElectronic Ignition
TypeNatural Gas Heater

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