
Installation & Operation Manual
72
Oiled bearing circulators
1. The circulator shipped with the Armor water heater 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.
Check Delta T
1. Check Delta T. Reference Section 7 -
System Piping
for
more information regarding Delta T.
7. Brush the heat exchanger while dry using a nylon bristle
brush.
Caution:
DO NOT use a metal brush. Re-vacuum
the heat exchanger.
8. Finish cleaning using a clean cloth dampened with warm
water. Rinse out debris with a low pressure water supply.
9. Allow the heat exchanger to thoroughly dry.
10. Remove the field supplied rear refractory cover from the
back of the combustion chamber of the heat exchanger and
reassemble.
11. Close isolation valves on piping to isolate water heater from
system. Attach a hose to the water heater drain and flush
water heater thoroughly with clean water by using purging
valves to allow water to flow through the water makeup line
to the water heater.
12. Perform start-up and check-out procedures in the Check
Flame and Combustion - Section 11 - Startup on pages 57
and 60 of this manual.
13. Replace the access cover and restore water heater to
operation.
Table 13B
Heat Exchanger Cleaning Kit
* Do NOT use a metal brush. Only use
the kit provided brush or an equivalent
replacement nylon brush.
⚠
CAUTION
13
Maintenance
Rope gasket is intended for sealing
combustion (see FIG. 13-3). If gasket is
damaged DO NOT reuse, the rope gasket
must be replaced. Consult factory for
replacement rope gasket.
NOTICE
DIR #2000585246 00
ROPE GASKET
CAUTION:
I
F GASKET IS DAMAGED
DO NOT
REUSE, THE GASKET MUST
BE REPLACED.
Figure 13-3
Rope Gasket - Heat Exchanger Door
Model
Kit
Number
Part
Number
Component
Description
400 - 1000 100157628
100333410
Rear Refractory Cover,
10.75
"
Diameter
100208804
Rear Refractory Cover,
7.25
"
Diameter
100208309* Nylon 4" Wheel Brush*
100208310
1/4" x 12" Drill
Extension
100208311
1/4" x 24" Drill
Extension