AERCO KC Standard to Low NOx Convertion Instructions - Manual (Page 4)

4
AIR/FUEL
VALVE
DIFFERENTIAL
GAS PRESSURE
REGULATOR
GAS INLET
PIPE
BURNER
ASSEMBLY
LOW GAS
PRESSURE
SWITCH
SSOV
I/O
BOX
CONTROL
BOX
COMBUSTION
CHAMBER
LINER
NOTE
ILLUSTRATION SHOWS KC BOILER WITH
COVERS REMOVED. THE LOCATIONS OF
THE AFFECTED ITEMS ARE IDENTICAL FOR
BOTH KC BOILERS AND WATER HEATERS
CONDENSATE
DRAIN TUBE
Figure 1. KC1000 Component Locations
Removal of the required items is accomplished as follows:
CAUTION
DO NOT DISCARD ANY OF THE REMOVED PARTS OR ASSEMBLIES
UNLESS IT IS SPECIFICALLY INDICATED THAT THEY WILL NO LONGER
BE USED. IT IS RECOMMENDED THAT ALL REQUIRED ITEMS BE
REMOVED AS INDICATED IN THE FOLLOWING STEPS PRIOR TO
PERFORMING ANY REPLACEMENT PROCEDURES IN SECTION 4.
1. Turn off the gas supply and disconnect AC power from the unit.
2. Remove the top and side sheet metal covers from the unit.
3. At the rear of the unit, disconnect the plastic tubing from the condensate cup to the drain.