Check-Out Procedure; Check Off Steps As Completed; Installation And Service Certificate - Weil-McLain LGB-4 User Manual

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Check-out procedure

o
1. System properly filled with water?
o
2. Automatic air vent, if used, open one turn (water boilers only)?
o
3. Air purged from system (water boilers only)?
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4. Steam boilers properly skimmed?
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5. Air purged from gas piping? Piping checked for leaks?
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6. Are proper orifices installed? See
Orifices
o
7. Follow
Section 8, Placing boiler in operation
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8. Proper burner flame? Refer to
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9. Test limit control — While burners are operating, move the indicator of the limit control below actual boiler
water temperature or pressure. Burners should go off. The circulator should continue to operate (water
boilers only). Raise the limit control above boiler water temperature or pressure and burners should reignite.
o
10. Test any additional field-installed controls — If boiler has low water cutoff or additional high limit or other
controls, test for operation as outlined by the manufacturer. Burners should be operating and should go off
when controls are tested. When controls are reset, burners should reignite.
o
11. Test ignition shutoff device — Turn off gas at manual main gas valve. Connect 24 VAC leads across PV and
MV/PV terminals on pilot proving control module. Establish call for heat. Pilot solenoid valve will close
within 15 seconds and remain off for minimum 5 minutes, then retry for ignition. Reset system by turning
off and on the main electrical switch.
o
12. Limit control set to design temperature or pressure requirements of system?
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13. For multiple zones, flow adjusted so it is about the same in each zone (water boilers only)?
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14. Boiler cycled with operating control? Raise to highest setting. Boiler should go through normal start-up
cycle. Lower to lowest setting. Boiler should turn off.
o
15. Measure gas input (natural gas only):
a. Operate boiler 10 minutes.
b. Turn off all other appliances.
c. At the natural gas meter, measure cubic feet of gas in ten seconds.
d. Calculate gas input:
•
e. Btuh calculated should approximate input rating on rating plate.
o
16. Check manifold gas pressure by connecting a manometer to the downstream test tapping on main gas valve.
• Manifold gas pressure = 3.5" w.c. for
• Manifold gas pressure = 10" w.c. for
o
17. Several operating cycles observed for proper operation?
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18. Operating control set to the design requirement?
o
19.

Installation and service certificate

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20. All instructions shipped with this boiler reviewed with owner or maintenance personnel, returned to envelope
and given to the owner or displayed near boiler?
Installation and service certificate
Boiler model ____________
Btuh input ____________
Series ____________
CP number ____________
Date installed ____________
Part Number 550-141-186/0100
• Installation • Start-Up • Maintenance • Parts
Control Supplements
Proper orifices must be used. Failure to do so will cause severe personal injury, death or
substantial property damage.
and operating instruction label on boiler for proper start-up. Also refer to
Control Supplement
Check Pilot Burner Flames
Btuh = 1000 x (3600 x CFH)/10
o
Installation instructions have been
followed.
o
Check-out sequence has been
performed.
o
Information on this form is certified to
be correct.
o
Information received and left with
owner/maintenance personnel.

— check off steps as completed

for orifice sizes.
, page 26.
and
Check Main Burner Flame
.
natural gas
.
propane gas
on this page completed?
Installer
Address
Phone
Signature
, , page 30.
Section 10
___________________________
___________________________
___________________________
___________________________
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