Utica Boilers UB90-100 Installationsanweisungen

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 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