ECR International CHB Application Manual page 45

CONTROL BOARD (DBM34A) KIT #FE3980B851
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 this instruction and
understand all requirements, including requirements
of authority having jurisdiction, before beginning
installation. Installation not complete until appliance
operation verified per Installation, Operation &
Maintenance Manual provided with boiler.
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. Remove front jacket casing per instructions found in
Installation, Operation & Maintenance Manual.
!
WARNING
Burn hazard. Verify heat exchanger has cooled or
use appropriate personal protection equipment.
3. Remove (2) screws on lower part of control housing.
See Figure 1.
4.
Slide control housing forward. Control housing will fold
down on the built in hinge. See Figure 2.
5. Remove two back cover screws.
6. Disconnect all wiring connectors
7.
Remove two (2) screws holding board in place. Slide
board out. See Figure 3.
8. Replace board and wiring connectors.
9. Replace back cover.
10. Fold control housing up. Slide control housing back into
position. Secure with screw.
11.
Remove any call for heat or hot water.
12.
Turn gas to appliance On following procedure found
on boiler or in Installation, Operation & Maintenance
Manual.
13. Apply power to boiler.
14. Configure control for proper boiler size and type.
REPLACEMENT INSTRUCTIONS
Figure 1
Remove (2)
Screws
Figure 2
Figure 3
Remove Screws
45
Control Housing
Hinge
REF #615000134, REV C [02/2016]
PN 3541F682