Weil-McLain PFG-7 manual Check-out procedure, Check off steps as completed

PFG Series 7 Gas-fired Water Boiler — Boiler Manual

Check-out procedure

Check off steps as completed.

❏Check to make sure base insulation is secure. See "To inspect base insulation," page 17.

❏Boiler and heat distribution units filled with water?

❏Automatic air vent, if used, open one turn?

❏Air purged from system?

❏Air purged from gas piping? Piping checked for leaks per page 10?

❏Follow operating/lighting instruction label on boiler for proper start-up. Also refer to “To place in operation,” page 17.

❏Are proper orifices installed? See page 5 for proper orifice size.

Proper orifices must be used. Failure to do so will cause severe personal injury, death or substantial property damage.

❏Proper burner flame? Refer to "Check main burner flames" and "Check pilot burner flame," page 17.

❏Test limit control: While burners are operating, move the indicator of the high limit control below actual boiler water temperature. The burners should go off while the circulator continues to operate. Raise the limit control above the boiler water temperature and the burners should reignite.

❏Test any additional field-installed controls: If boiler has low water cut-off, 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.

❏To test ignition system shut-off device:

a.For PI systems: Connect a manometer to outlet side of gas valve. Start boiler, allowing for normal start-up cycle to occur and main burners to ignite. With main burners on, manually shut off gas supply at manual main shut-off gas valve. Burners should go off. Open manual main shut-off gas valve. The ma- nometer should confirm there is no gas flow. Pilot will relight, flame sensing element will sense pilot flame and the main burn- ers reignite.

b.For standing pilot systems: Turn gas knob to PILOT position and extinguish pilot flame - Pilot gas flow should stop in less than 3 minutes. Put system back into operation. See page 17.

❏High limit control set to design temperature requirements of the system? Maximum high limit setting - 240 °F.

❏For multiple zones, flow adjusted so it is about the same in each zone?

❏Thermostat heat anticipator is set properly? Refer to "Install room thermostat," page 12, and wiring diagram on jacket door.

❏Boiler cycled with the thermostat? Raise to highest setting. Boiler should go through normal start-up cycle. Lower to lowest setting. Boiler should go off.

❏Measure gas input (natural gas only):

a.Operate boiler 10 minutes.

b.Turn off all other appliances served by the gas meter, including gas stove, pilot lights and gas yard lights.

c.At natural gas meter measure time (in seconds) required to use on cubic foot of gas.

d.Calculate gas input:

e.Btuh calculated should approximate input rating on rating label.

❏Check manifold gas pressure by connecting manometer to down- stream test tapping on main gas valve. Manifold gas pressure for natural gas should be 3 1/2 inches water column and for propane gas should be 10 inches water column.

❏Several operating cycles observed for proper operation? If damper is provided, see Control Supplement for check-out procedure.

❏Room thermostat set to desired temperature?

❏Installation and Service Certificate on this page completed?

❏All instructions shipped with this boiler reviewed with owner or maintenance person, returned to envelope and given to owner or displayed near boiler?

Installation and Service Certificate

Boiler model __________________	Series __________	CP number ___________	Date installed _______________
		o Installation instructions have been followed.
Measured Btuh input ____________		o Check-out sequence has been performed.
		o Above information is certified to be correct.
		o Information received and left with owner/maintenance person.

Installer ________________________	________________________________	______________________________
(company)	(address)	(phone)
		_____________________________________
		(installer’s signature)

14 Part Number 550-110-641/0605