Utica Boilers UB90-100 Instrução De Instalação
P/N 240010144, Rev. A [05/2013]
DSI Removal:
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
Electric shock hazard. Turn OFF electrical power
supply at service panel.
2. Remove front and top jacket panel(s).
WARNING
Burn hazard. Verify heat exchanger has cooled or
use appropriate personal protection equipment.
!
3. Inspect combustion chamber through sight glass.
Verify fl ame is not present. See fi gure 1.
4. Disconnect wires at:
A. Casting temperature switch. See fi gure 1.
B. Gas Valve
C. Igniter ground and ground wire
D. Inducer Temperature Switch. See fi gure 2.
Kit installation shall be completed by qualifi ed 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 is not
complete until appliance operation is verifi ed per
Installation, Operation & Maintenance Manual
provided with boiler.
!
Figure 1 - Sight Glass, Casting Temperature
Switch,Gas Valve Igniter
Figure 2 - Inducer Temperature Switch
Sight Glass
A
B
C
D
DSI Removal