Utica Boilers CuB Series 安装指导

Asphyxiation hazard. Carbon monoxide is odorless, 

tasteless, clear colorless gas, which is highly toxic. 

Carbon monoxide production shall not exceed 

400ppm. Failure to follow these instructions could 

result in death or serious injury.

Asphyxiation hazard. Verify cap is fi rmly placed on 

combustion analyzer port to prevent CO emission. 

Failure to do so could result in death or serious 

injury.

Unit has fl ame modulation, with two fi xed pressure values: 

minimum and maximum. See Sec. 12, page 34.

Connect pressure gauge to pressure point “B” downstream 

of the gas valve.

Remove protection cap “D”.

Operate boiler in TEST mode.

Adjust maximum pressure by turning screw “G” 

clockwise

 

↷

 to increase pressure and counter clockwise 

↶

 

to decrease.

Disconnect one of two connectors “C” from modulation 

regulator “F” on the gas valve.

Adjust minimum pressure by turning screw “E” clockwise 

↷

 to increase the pressure and counter clockwise 

↶

 to 

decrease it.

Turn burner on and off, verify minimum pressure 

remains stable.

Reconnect connector “C” detached from modulation 

regulator “F” on the gas valve.

Verify maximum pressure has not changed.

Replace protection cap “D”.

To end TEST mode, repeat activation sequence or wait 

15 minutes.

Press CH+/- buttons at the same time for 5 seconds.

• 3 way valve is in CH position and burner is forced at 

100%.  Boiler automatically exits test mode after 15 

minutes or to exit test mode manually press CH +/- 

buttons together for 5 seconds.

• With Ch +/- buttons you can adjust Max power from (0 

to 100%)

To adjust ignition, switch boiler to TEST mode (See Start 

up Procedure). Press DHW buttons  to increase or decrease 

power (min.= 00,  max. = 60). Press RESET button within 

5 seconds and ignition remains set. Exit TEST mode.

To maintain boiler effi ciency and prevent boiling 

inside the heat exchanger, fl ush entire heating 

system until clean. 

• Flush heating system, including all heating zones.
• Fill boiler with potable water.
• Fill boiler and system piping with water (or 

antifreeze-water solution, if used).  See antifreeze 

information Section 5.3 page 11.  Purge air from 

boiler using air vent.  Purge air from system piping.

• Inspect system piping and boiler connections.  

Repair any leaks immediately.

• Activate all heating zones and calls for heat, 

including CH calls and DHW calls (if available).

• Close manual gas shut off valve. Let system run for 

30 minutes. When boiler goes into lockout, reset 

boiler by pressing “Reset” button until boiler resets.

• Do not open gas shutoff valve until all air is purged 

from system.

Verify air is purged from hydronic piping

System test pumps - verify each pump is 

operational

Verify gas piping

• Confi rm pressure test.  See section 7.3 page 20.
• Visually inspect piping to determine there are no 

open fi ttings or ends, and all valves at unused 

outlets are closed and plugged/capped.

• Purge air from piping
• Check piping and connections for leaks immediately 

after gas is turned on.  Shut off gas supply and 

make necessary repairs if leaks found.

Follow OPERATING INSTRUCTIONS to initiate boiler 

operation. See section 10.

Inspect combustion air and vent piping. Verify pipe 

is not leaking and terminations are unobstructed and 

vent gas discharge is not a nuisance or hazard.

Verify boiler operates.

Check control module operation.

Check fi eld sourced limits, low water cutoffs, etc. per 
manufacturer's instructions.