PFG Series 7
Draft hood installation
Secure the draft hood to the outlet at the top of the boiler with sheet metal screws. The bottom of the draft hood or “skirt” must have the clearance dimension above the jacket top panel as indicated on the draft hood.
Do not alter draft hood. CSA design certification becomes void. If draft hood is altered, severe personal injury or death will occur, resulting from flue gas spillage or carbon monoxide emissions.
Spill switch installation (PFG-5 ONLY)
Fasten spill switch to draft hood as shown on page 21. Connect wires as shown on wiring diagram label located inside boiler door.
Damper installation
If damper will be installed, see Control Supplement for information.
Breeching erection
(Also refer to chimney or vent requirements, Page 4)
Connect from draft hood or damper outlet to chimney or vent with same size as breeching. Where possible, vertical venting to the outside from the draft hood or damper outlet will offer best performance. Where hori- zontal breeching is used, slope upward at least ¼ inch per lineal foot toward the chimney or vent and support with hangers to prevent sagging.
A minimum vertical height of 3 feet of breeching before any elbow or horizontal breeching is recommended to reduce chances of flue gas spillage at the draft hood. Long horizontal breechings, excessive numbers of elbows or tees, or other obstructions that restrict the flow of combustion gas should be avoided.
Breeching must not be connected to any portion of a mechanical draft system that can operate under posi- tive pressure.
Wiring
For your safety, turn off the electrical power supply at the service entrance panel before making any electrical connections to avoid possible electrical shock hazard.
All wiring must be installed in accordance with re- quirements of the National Electrical Code and any additional national, state or local code requirements having jurisdiction. All wiring must be N.E.C. Class 1. The boiler must be electrically grounded in accordance with the National Electrical Code, ANSI/NFPA No. 70- latest edition.
In Canada, all wiring must be done in accordance with the CSA C22.1 Canadian Electrical Code Part 1.
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The boiler is shipped with control components com- pletely wired except for spill switch and damper (if provided).
A separate electrical circuit should be used for the boiler with a fused disconnect switch (15 amp. recom- mended).
Refer to wiring diagram label affixed to the inside of the jacket door. Bring electrical supply through proper opening in the jacket left end panel and into the electri- cal junction box. Wire electrical supply, circulator and thermostat as shown on the wiring diagram.
For boilers equipped with control systems other than constant burner pilot, refer to separate instructions for application data.
Install room thermostat
Install room thermostat on an inside wall. Never install where it will be influenced by drafts, hot or cold water pipes, lighting fixtures, television, rays of the sun or near a fireplace.
Heat anticipator in thermostat must be set to match the power requirements of the primary control to which it is connected. Refer to wiring diagram on jacket door for recommended heat anticipator setting with standard equipment. Wire the thermostat as shown.
12 | Part Number |