Lochinvar EnergyRite ER402 - Manual (Page 31)

31
Upon completion of any testing on the gas
system, leak test all gas connections with a
soap and water solution while main burners
are operating. Do not spray soap and water
solution on the housing.
The use of an
excessive amount of soap and water solution
can damage the control. Immediately repair
any leak found in the gas train or related
components. Do not operate an appliance
with a leak in the gas train, valves, or related
piping.
NOTICE
Check burner performance by cycling the system while you
observe burner response.
Burners should ignite promptly.
Flame pattern should be stable, see the Maintenance Normal
Flame Pattern section. Turn system off and allow burners to
cool, then cycle burners again to ensure proper ignition and
flame characteristics.
13. Remove the manometer and related fittings from the
“inlet” side of the gas valve, replace the 1/8" hex plug in
the tee (Models ER252 - ER402) or gas valve (Models
ER152 - ER202) and tighten.
14. Turn on the gas supply at the manual valve, turn on the
LP gas at the tank if required.
15. Turn the power switch to the “ON” position.
16. Ensure that the “ON/OFF” knob or the valve is in the
“ON” position.
17. Set the electronic temperature control to call for heat.
If proper ignition and burner operation is not achieved after
checking gas supply pressure and setting the correct net
manifold pressure, see the Maintenance section for Combustion
Air Shutter Adjustment in this manual. Follow the procedure to
adjust the combustion air fan.
Service Manual
3
Troubleshooting
(continued)