Nortec GS Series - Manual (Page 50)

47 | GS Series Installation
Reassemble the drain and blowdown if they were removed. Re-install tank top and side lids making sure
tank cover gasket is intact. Do not over tighten hold down nuts. If using a torque wrench do not exceed 50
in/lb (5 ft/lb). Re-seal all cabinet lids.
Cleaning the float chamber is accomplished by removing the hold down screws to access the floats and
using a small brush to gently clean the scale from the floats and chamber. Ensure that floats are back in
place and o-ring is properly seated before tightening screws on float chamber. Special attention must be
used when removing or re-installing the float chamber.
The switch board must be replaced into the same position as before cleaning and the tie -wrap must be used
to hold the float chamber in position.
Figure 31: Cleaning Tank Access
Servicing the Unit
General
The combustion chamber, heat exchanger and flue baffles are all fabricated from stainless steel and do not
require internal cleaning.
Should the main burner fail to light, or flame is not detected during the first trial for ignition period, the gas
valve is de-energized and the control goes through an interpurge delay before another ignition attempt. The
control will attempt two additional ignition trials before going into lockout. The valve relay will be de-
energized immediately, and the combustion blower will be turned off.
Warning:
Disconnect power before servicing this appliance.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation.