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Installation & Operation Manual
77
12 Maintenance (continued)
Oiled bearing circulators
1. The circulator shipped with the Knight wall mount
boiler is water-lubricated. No oiling is required.
2. Check other circulators in the system. Oil any circulators
requiring oil, following circulator manufacturer’s
instructions. Over-oiling will damage the circulator.
3. Replace the boiler front access cover.
Table 12B Heat Exchanger Cleaning Kits
Model
Kit
Number
Part
Number
Component
Description
51 - 106 KIT30062
CTN20005 Rear Refractory Cover
MSC20083* Nylon 4" Wheel Brush*
MSC20085 1/4" x 12" Drill Extension
151 - 211 KIT30063
CTN20005 Rear Refractory Cover
MSC20083* Nylon 4" Wheel Brush*
MSC20084 3mm Allen Wrench
MSC20086 1/4" x 24" Drill Extension
* Do NOT use a metal brush. Only use
the kit provided brush or an equivalent
replacement nylon brush.
ƽ CAUTION
NOTICE
Rope gasket is intended for sealing
combustion (FIG. 12-3). If damaged DO
NOT reuse, the heat exchanger door must
be replaced. Consult factory for replacement
heat exchanger door (kit WTR30002).
ROPE GASKET
CAUTION: IF GASKET IS DAMAGED
DO NOT REUSE, THE HEAT EXCHANGER DOOR
MUST BE REPLACED.
Figure 12-3 Rope Gasket - Heat Exchanger Door