Utica Boilers SW Series II 安装指导

Install Oil tank and piping in accordance with the 

National Board of Fire Underwriters and in absence of such 

regulations in accordance with authority having jurisdiction. 
Oil storage tank, vent, fi ll pipe and caps should be in 

accordance with the authority having jurisdiction.

A.  In no case should vent pipe be smaller than 1-1/4" 

I.P.S. 

B.  Fill pipe should not be less than 2" I.P.S.

• Suction line from tank to burner should be one 

continuous piece of tubing to prevent air entering line. 

Suction line, must be 3/8" O.D. copper tubing for runs 

of 50 feet or less, and 1/2" O.D. for longer runs. 

• Oil return line, same size as suction line, must be used 

on any installation where bottom of tank is below fuel 

unit of burner. 

• Oil lines should be buried or otherwise protected from 

mechanical injury. 

• Flare fi ttings on all oil lines are recommended. 
• Compression fi ttings on suction line often allow air to 

be drawn into fuel pump, making it diffi cult to maintain 

oil pressure at nozzle. 

• Do not run overhead fuel lines from tank to oil burner.
• Fuel pump connections and by-pass should be made 

according to instructions attached to fuel pump. If 

tank is more than 20'  from the boiler, a  two stage 

fuel unit should be installed in place of single stage 

pump supplied as standard equipment with burner. 

Make certain rotation and speed are same and pump is 

suitable for burner horsepower rating. 

• Oil line fi lter and shut-off valve should be installed in 

suction line. 

• Shut-off valves should be installed in both suction 

and return lines at burner for convenience in servicing 

burner. 

• Allow extra tubing at burner so burner may be removed 

from boiler for cleaning without disconnecting tubing. 

(See Figures 10 & 11). 

• A UL approved fl exible oil line may be used.