Table of Contents
Advertisement
5.
Gently remove the burner assembly from the
appliance being careful not to damage the
n
burner material.
6.
To reinstall, reverse above procedure and
ensure that flange gasket is not damaged and
a good seal is maintained. If necessary
replace the gaskets.
7.
Always test for leaks after any service has
been performed on the gas train as there is an
explosive gas mixture present downstream of
the combustion blower.
ADJUSTMENTS/REPLACEMENTS OF
COMPONENTS
CONSULT FACTORY PRIOR TO THE
REPLACEMENT OF ANY COMPONENT.
DANGER - SHOCK HAZARD - Make sure
electrical power to the appliance is disconnected to
avoid potential serious injury or damage to
components.
Gas Valve Replacement
j'"
1. Shut off electrical power and gas supply to the
\
appliance.
,/
2.
Remove front door and right side panel.
3.
On units with multiple burners disconnect gas
supply line from the Gas Intake Manifold. On
units with a single burner disconnect gas
supply line from the gas valve.
4.
Disconnect wiring connections to gas valve.
5.
Use (2) pipe wrenches to release the union
connections between each gas valve and the
inlet manifold mounted on the combustion
blower inlet.
6.
On units with multiple burners remove gas
supply manifold with valves attached.
Disconnect valve to be replaced from the gas
supply manifold.
7.
Remove union and nipple assembly from
valve that is being replaced and install on new
valve.
8.
Reverse above procedure to reinstall.
:J
9. Leak test the gas train before
re-commissioning unit.
- 19 -
Hot Surface Igniter Replacement
NOTE: Replacement igniters must be supplied by
NORTEC or damage to the unit may occur.
1.
Shut off electrical power and gas supply to the
appliance.
2.
Disconnect wiring leads to the igniter.
3.
Remove nut holding igniter cylinder to burner
flange and carefully remove igniter.
4.
Inspect igniter gasket and replace if
necessary.
5.
Reverse above procedure to re-install.
CAUTION: Silicon carbide igniter is fragile and
brittle. Exercise extreme care in handling the
assembly to avoid damage.
Ignition Module Replacement
1.
Shut off electrical power to the appliance.
2.
Remove access door.
3.
Disconnect wiring connections to the module
labeling as required.
4.
Remove screws (2) holding module.
5.
Reverse above procedure to re-install.
Transformer Replacement
1.
Shut off electrical power to the appliance.
2.
Remove access door.
3.
Disconnect wiring connections from
transformer leads labeling as required.
4.
Remove screws (2) holding transformer.
5.
Reverse above procedure to re-install.
Air Switch Replacement
1. Shut off electrical power to the appliance.
2.
Remove front panel.
3.
Remove wiring connections to switch.
4.
Remove screws (2) holding the switch.
5.
Remove pressure hose( s) from switch noting
proper location.
Advertisement
Table of Contents
