Check-Out Procedure - Weil-McLain GOLD CGt Manual

GOLD CGt Gas-Fired Water Boiler — Boiler Manual
8
Check-out procedure — checklist
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Boiler and heat distribution units filled with water?
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Automatic air vent, if used, open one full turn?
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Air purged from system?
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Air purged from gas piping? Piping checked for leaks?
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Correctly sized manifold orifices installed? Refer to page 12 to
check size.
Correctly sized manifold orifices must be used.
Failure to do so will cause severe personal
injury, death or substantial property damage.
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Followed operating instructions on boiler or in manual section
, pages 34-36 for proper start-up?
9
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Proper burner flame observed? Refer to
manual section , page 32.
7b
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Test limit control — While burners are operating, move
indicator on limit control below actual boiler water
temperature. Burners should go off while circulator continues
to operate. Raise setting on limit control above boiler water
temperature and burners should reignite.
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Test tankless heat low limit control — While burners are
operating, move indicator on low limit control above actual
boiler water temperature. The 3-way valve should operate to
bypass all flow around the boiler. If low limit and valve operate
correctly, turn setting on low limit back to normal. The 3-way
valve should return to normal position.
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Test additional field-installed controls — If boiler has a low
water cutoff, additional high limit or other controls, test for
operation as outlined by manufacturer. Burners should be
operating and should go off when controls are tested. When
controls are restored, burners should reignite. Test ambient
temperature switch by disconnecting one of the wires from
the switch. Boiler shut down until wire is replaced.
❏
Test ignition system safety device:
a. Connect manometer to outlet side of gas valve.
b. Start boiler, allowing for normal start-up cycle to occur
and main burners to ignite.
Installation and service certificate
Boiler model __________________
Measured Btuh input ____________
Installer ________________________
(company)
Part Number 550-110-290/0501
❏
❏
❏
,
Check burner flames
❏
❏
❏
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❏
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Series __________ CP number ___________
❏ Installation instructions have been followed.
❏ Check out sequence has been performed.
❏ Above information is certified to be correct.
❏ Information received and left with owner/maintenance person
________________________________
(address)
c. With main burners on, manually shut off gas supply at
manual main shutoff gas valve. Burners should go off.
d. Open manual main shutoff gas valve. Manometer
should confirm there is no gas flow.
e. Pilot will relight, flame sensing element will sense pilot
flame and main burners will reignite.
Set limit control(s) to system temperature requirements.
Adjust balancing valves and controls to provide design
temperature to system.
For multiple zones, adjust flow so it is about the same in each
zone.
Verify thermostat heat anticipator (if available) set properly?
Refer to , manual section
Field wiring
Cycle boiler with thermostat — Raise to highest setting and
verify boiler goes through normal start-up cycle. Lower to
lowest setting and verify boiler goes off.
Measure natural gas input:
a. Operate boiler 10 minutes.
b. Turn off other appliances.
c. At natural gas meter, measure time (in seconds) required
to use one cubic foot of gas.
d. Calculate gas input:
3600 x 1000
number of seconds from step c
e. Btuh calculated should approximate input rating on
boiler rating label.
Check manifold gas pressure by connecting manometer to
downstream test tapping on main gas valve. Manifold
pressure for natural gas should be 3.5" w.c.
Observe several operating cycles for proper operation.
Set room thermostat to desired room temperature.
Fill in Installation and service certificate below?
Review all instructions shipped with this boiler with owner or
maintenance person. Return instructions to envelope and give
to owner or place in pocket inside front panel in boiler.
Date installed _______________
______________________________
_____________________________________
(installer's signature)
, page 29, .
6 Thermostat
= Btuh
(phone)
33