Check-Out Procedure - Weil-McLain CGA 2 Series Installation And Maintenance Manual

CGa Series 2 Gas-Fired Water Boiler - Boiler Manual
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Check-out procedure- checklist
Boiler and heat distribution units filled with water?
Automatic air vent, if used, open one full turn?
Air purged from system?
Air purged from gas piping? Piping checked for leaks?
Correctly sized manifold orifices installed? Refer to Table 2,
page t 2 to check size and fuel type.
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Set Boiler Temp adjustment knob to system temperature re-
quirements. Adjust balancing valves and controls to provide
des•gn temperature to system.
Set Economy mode, fully clockwise.
For multiple zones, adjust flow so it is about the same in
each zone.
t!j.t:Hiij§;l
Correctly sized manifold orifices must be used.
Failure to do so will cause severe personal
Verify thermostat heat ant icipator (if availa ble) set
properly? Refer to Field wiring, manual Section 5, page 27,
Thermostat(s ).
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injury, death or substantial property damage.
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Followed operating instructions on boiler or in manual
Section 9 for proper start-up?
Proper burner flame observed? Refer to
Check
burner flame,
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manual Section Gd .
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Test temperature limit - While burners are operating, turn
Boiler Temp adjustment knob counterclockwise until display
reading is below actual boiler water temperature. Burners
should go off while circulator continues to operate. Turn
Boiler Temp adjustment knob clockwise until display read -
ing is above boiler water temperature and ignition sequence
should resume.
Test additional field-installed controls - If boiler has an
additional low water cutoff, additional high limit or other
controls,
te~t
for operQtion
a.:;
outlined
by
manufa.cturer.
Burners should be operating and should go off when con-
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trois are tested. When controls are restored, burners should
reignite.
Button on spill switch pushed in?
Test ignition system safety device
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Connect manometer to outlet s ide of gas valve. Start
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boiler, allowing for normal start-up cycle to occur and
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main burners to ignite. \'flth main burners on, manually
shut off gas supply at manual main shutoff gas valve.
Burners should go off. Open manual main shutoff gas
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valve. Manometer should confirm there is no gas flow.
Pilot will relight, flame sensing element will sense pilot
flante and main burners reignite.
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.
Cycle DHW Aquas tat if used.
Measure natural gas input:
a. Operate boiler 10 minutes.
b. Turn off other appliances.
c. At natural gas meter, measure time (in seconds) re-
quired to use one cubic foot of gas.
d. Calculate gas input:
3600
X
1000
= Btuh
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 pres-
sure for natural gas should be 3.5" w.c. and for propane gas
should be I 0" w.c.
Observe several operating cycles for proper operation.
Set room thermostat to desired room temperature.
Fill in Installation and service certificate below?
Review aU 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.
Installation and service certificate
Boiler model _ _ _ _ _ _ _ _ Series _ _ _ _ _
CP number _ _ _ _ _ Date installed _ _ _ _ _
Measured Btuh input - - - - - - - - -
Installer - - - , - - - - - , - - - -
(company)
0 Installation instructions have been followed.
0 Check out sequence has been performed.
0 Above information is certified to be correct.
0 Information received and left with owner/maintenance person
(address) ( phone)
Installer's signature: - - - - - - - - - - - - - - - - -
Part Number 550-1 42-779/0712
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