Archgard 42-DVT40N - Manual (Page 31)

Northfire 42
31
SERVICING
Before servicing, read the terms and conditions of the Archgard warranty at the back of the
manual. Contact the Archgard authorized dealer where you purchased the appliance from and
provide them with details of the problem and the installation information that the installer has
filled in at the back of the manual.
WARNING: Servicing of this appliance must be conducted by a qualified service
technician . Improper servicing, adjustment or alteration of this appliance may
cause property damage, personal injury or loss of life. All servicing should be
conducted with the appliance cold. All replacement parts must be authorized by
Archgard for suitability.
Note: the Shutter is set at the factory and normally only requires setting at higher altitudes.
• Open the lower grilles.
• Unscrew the 2 screws holding the blower speed control panel and remove the panel.
• The primary air adjustment wing nut is located behind and to the left of the control valve.
• Loosen the wing nut and slide the primary air shutter to the right to increase primary air and
to left to reduce primary air.
• Tighten the wing nut after adjustment.
Caution: Wear gloves when adjusting the primary air with the appliance hot.
INCREASE DECREASE
ADJUSTMENT WING NUT
PRIMARY AIR SHUTTER
BLOWER SPEED
CONTROL BOX
ORIFICE HOLDINGING BRACKET ORIFICE
ELBOW FITTING
ADJUSTING PRIMARY AIR
SERVICING UNDER WARRANTY
FLAMES...
The left side shows correct adjust-
ment. The right side shows yellow
sooty flames requiring increase in
shutter opening or cleaning of shut-
ter area due to lint buildup.