Utica Boilers CuB Series 安装指导

• Use piping materials and joining methods acceptable 

to authority having jurisdiction.  In absence of such 

requirements:

• USA - National Fuel Gas Code, ANSI Z223.1/NFPA 

54

• Canada - Natural Gas and Propane Installation Code, 

CAN/CSA B149.1

• Size and install gas piping system to provide suffi cient 

gas supply to meet maximum input at not less than 

minimum supply pressure. See Table 6.

• Support piping with hooks straps, bands, brackets, 

hangers, or building structure components to prevent or 

dampen excessive vibrations and prevent strain on gas 

connection.  Boiler will not support piping weight.

• Use thread (joint) compound (pipe dope) suitable for 

liquefi ed petroleum gas.

• Provide sediment trap up stream of gas valve.

• Install manual main shutoff valve outside of jacket. See 

fi gure 16.

Refer to Gas Conversion Kit Instructions.

• Do not try to light any appliance.
• Do not touch any electrical switch; do not use 

any phone in your building.

• Immediately call your gas supplier from a 

neighbor’s phone.  Follow gas supplier’s 

instructions. 

• If you cannot reach your gas supplier, call the fi re 

department.

  

With Manufacturer Suggested Piping With Drip Leg

Manufacturer suggested gas piping with drip leg. 

3.5" w.c. 

(0.7 kPa)

14" w.c. (3.3 

kPa)

Fire Hazard.  Do not use matches, candles, open 

fl ames, or other methods providing ignition source. 

Failure to comply will result in death or serious 

injury.

!  

Pressure test boiler and gas connection before placing 

boiler in operation.

• Pressure test over 1/2 psig (3.5 kPa).  Disconnect 

boiler and its individual gas shutoff valve from gas 

supply system.

• Pressure test at 1/2 psig (3.5 kPa) or less.  Isolate 

boiler from gas supply system by closing manual gas 

shutoff valve. See fi gure 16.

• Locate leakage using gas detector, noncorrosive 

detection fl uid, or other leak detection method 

acceptable to authority having jurisdiction.  Do not use 

matches, candles, open fl ames, or other methods that 

can provide ignition source.

• Correct leaks immediately and retest.

Tee ¾” NPT