ECR International CHB Application Manual page 57

Kit installation shall be completed by qualified agency.
!
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read these instructions and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
is verified per Installation, Operation & Maintenance
Manual provided with boiler.
!
CAUTION
Laceration, burn hazard. Metal edges and parts may
have sharp edges and/or may be hot. Use appropriate
personal protection equipment to include safety
glasses and gloves when installing or servicing this
appliance. Failure to follow these instructions could
result in minor or moderate injury.
Combustion Cover Replacement
1.
Follow instructions To TURN OFF GAS TO APPLIANCE found
on Operating Instructions label on boiler or in Installation,
Operation & Maintenance Manual. Verify all electrical power to
boiler is turned off.
!
WARNING
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
2.
Verify all power to boiler is turned OFF at service panel.
3.
Follow Installation, Operation & Maintenance manual to remove
front jacket panel.
!
WARNING
Burn hazard. Verify unit has cooled before servicing. Use
appropriate personal protection equipment.
4.
Inspect combustion chamber through sight glass. Verify flame
is not present.
5.
Verify unit has cooled before servicing.
6.
Remove (4) four screws from external heat exchanger cover.
See Figure 1. Lift cover up from bottom and pull forward.
7.
Remove (4) four screws holding inner combustion cover with
insulation.
8.
Install new inner combustion cover and insulation in place.
Secure with 4 screws.
CCB/CHB REPLACEMENT
COMBUSTION COVER KIT INSTRUCTIONS
550003447 - CCB/CHB 150
550003448 - CHB 100
550003449 - CHB 130
9.
Install new outer combustion cover in place. Take care to
ensure left and right sides are tucked behind the vertical rails.
Secure with 4 screws.
10.
Turn Gas and Electric to boiler on.
11.
Resume operation using OPERATING INSTRUCTIONS
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual.
12.
Install front panel. Secure in place with removed screws.
13.
Verify proper operation.
Figure 1 - Heat Exchanger Covers
Front
Jacket
Sight
Glass
Outer
Combustion
Chamber Cover
Combustion
Chamber Cover
Illustrations are a depiction of the boiler for general location of parts and are
subject to change without notice.
Inner
P/N 240011995 Rev. A [11/03/2017]