Norcold 121X series, Руководство по обслуживанию

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62
S
ection
8
NORCOLD
Serial Number 700000
Made in USA
Fan failure
The fans enhance ventilation when ambient
temperature is 90 degrees Fahrenheit (32.2
degrees Celsius) or higher. A failed fan will
result in insufficient heat removal.
Dirty flue
A dirty flue restricts the flame from drawing
the right amount of secondary combustion
air. Little or no secondary combustion air will
cause a weak or lazy flame. A partial view of
the flue and spiral baffle is illustrated in Figure
8-1.
Blocked or jammed flue cap
A flue cap that is blocked with insulation and or
jammed against the flue opening restricts the
flow of exhaust gases from the burner box. The
flue cap location is illustrated in Figure 8-1.
Operation over maximum leveled limits
The refrigeration cycle works on gravity flow.
Exceeding off-level limits during operation
affects the flow of refrigerant through the
system.
Inadequate repairs
Inadequate repairs that may result in poor
cooling include:

Failure to properly seal the cooling system
to the cabinet.

Failure to seal the drip tube penetration.

Altering the angle of the condenser.
Unauthorized modifications
Unauthorized modifications include:

Removal of enclosure baffles.

Removal of insulating canister

Installation of insect screen over intake and/
or exhaust vent openings

By-passing or tampering with the control.

Relocation of fans and/or thermostatic
switch.
Flue baffle
Flue
Flue
Canister
Flue baffle wire
“O” shape flue cap
Figure 8-1. —Flue and associated components.
7-slot burner
LP18 orifice