Utica Boilers JE 安装指导

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页码 36
33
BOILER FLUE PASSAGE
Burner And Pilot Flame
Manufacture recommends flue passages, burner 
adjustments and operation of boiler controls be checked 
once a year by a service technician.
To clean flue passages:
A.  Remove burners and pilot(s) from boiler. 
B.  Remove clean-cut cover panel on draft hood to 
expose flue passages.
 
See Figure 13 page 16. 
C.  Clean flue passageways between sections with 
flexible handle wire brush. Remove all dirt from 
bottom of boiler and reassemble all parts. 
D.  Verify pilot connection(s), adjustment of pilot(s) 
and burner flames after reassembly.
Outer Mantle
Outer Cone
Burner
Manifold
High Limit Control
While boiler is operating, set high limit control below boiler 
water temperature and main burners should shut off. Return 
control to normal setting. Main burners should restart. 
 WARNING
Burn and scald hazard. Discharge of water, vapor 
and steam may scald. Failure to follow these 
instructions could result in death or serious injury.
!
  
Pressure Relief Valve
1. 
Pressure relief valve on boiler is required. 
2. 
Run a pipe from pressure relief valve outlet to 
appropriate open drain. 
3. 
Pipe must be of same size as outlet on valve and open 
end must not be threaded. 
4. 
Run drain in area not subject to freezing. Failure to 
do so may cause water damage or injury should valve 
release.
5. 
If valve discharge occurs, or valve fails to open as 
described above, contact service technician to replace 
relief valve and inspect heating system to determine 
cause, as this may indicate equipment malfunction.
6. 
Follow valve manufacture instructions for testing and 
maintenance.
Burner And Pilot Flame
1. 
Manufacture recommends visual check of burners and 
pilot flame monthly during heating season by owner 
and once year by service technician. 
 
See Figure 39. 
2. 
Look for deterioration from corrosion of burners, pilot 
burners and boiler base frame. 
3. 
Clean boiler base interior and exterior.
Verify Burner Input
Check boiler for proper Btu input rate. Do not exceed Input rate 
stamped on nameplate of boiler located on end jacket panel. 
Verify primary air supply to main burners is properly 
adjusted for complete combustion.
If boiler is shut down for service, gas and electric must be 
off for 5 minutes before relighting. 
Verify boiler for proper Btu Input proceed as follows: 
1. 
With main burners operating, measure gas Input to 
boiler by reading the gas meter. 
2. 
Verify all other appliances connected to same meter are 
shut off. 
3. 
Rate of gas flow (cu. ft. per hour) multiplied by Btu 
value of  gas should match Btu input shown on boiler 
nameplate. 
4. 
If it is not within +/- 2%, adjust Pressure Regulator 
to obtain desired flow. Adjustment stem can be found 
cap regulator top. Adjustment screw is plastic and 
may require slightly greater turning force than metal 
threads.
5. 
Turn clockwise to increase input and counterclockwise 
to decrease input rate.
6. 
Replace Regulator Cap.
CHECKING AND ADJUSTING
Figure 39 - Pilot and Flame
Venting System
1. 
Check chimney for correct size, proper construction, 
clean and in good condition to ensure proper 
combustion. 
2. 
You must provide enough fresh air for combustion. 
3. 
If your building is of tight construction, it may be necessary to 
add fresh air duct to provide oxygen. See Chart 3, page 8.
4. 
Monthly during heating season check that sections of 
vent pipe are secure at all joints and fittings. There 
should be at least two (2) sheet metal screws per joint.
5. 
Check that vent pipe slopes at least 1/4” per foot up 
from boiler to chimney. 
6. 
Vent pipe should be securely fastened to prevent 
sagging.
7. 
Check vent Pipe for any deterioration from corrosion or 
any other sources. 
8. 
Refer to Venting and Combustion Air instructions in this 
manual.
 WARNING
Asphyxiation hazard.  Improper installation could 
result in death or serious injury. Failure to follow 
these instructions could result in death or serious 
injury.
!