Utica Boilers UB90-200 Installation Instruction

After it has been determined each appliance remaining 

connected to common venting system properly vents 

when tested as outlined above, return doors, windows, 

exhaust fans and any other gas-burning appliance to 

their previous condition.

Any improper operation of common venting system 

should be corrected so installation conforms with the 

National Fuel Code, ANSI Z223.1/NFPA 54. When re-

sizing any portion of common venting system, common 

venting system should be re-sized to approach 

minimum size as determined using appropriate tables 

in chapter 13 of the National Fuel Code, ANSI Z223.1/

NFPA 54.

• Place boiler to provide most direct connections to 

combustion air, vent, and system piping as possible.

• Place crated boiler as close to selected location as 

possible and uncrate boiler. 

• Move uncrated boiler into position with appliance dolly 

or 2-wheel hand truck. 

• Insert dolly or hand truck under right hand side of 

boiler. It is possible to slide boiler for short distance on 

smooth floor or surface.