Weil McLain PFG Series User Manual

PFG SERIES BOILER  
SUGGESTED SPECIFICATIONS  
I.  
General Requirements  
A.  
B.  
C.  
Furnish and install _____ (qty) packaged atmospheric gas cast iron sectional  
boiler(s).  
Install packaged boiler unit(s) according to manufacturer’s installation  
instructions. All work to be done in a neat and workmanlike manner.  
Weil-McLain _____ (qty) PFG-_____ (size) -PIDN, -PIN, -SPN, packaged  
water boiler(s) capable of burning natural gas (propane available as product  
option).  
D.  
The inlet natural gas pressure to the boiler gas valve(s) should be a minimum  
of 5” w.c. and a maximum of 13” w.c. If inlet natural gas pressure exceeds  
13” w.c., a 100% lock-up type gas pressure regulator of adequate size must  
be installed in gas supply piping and adjusted to prevent pressure in excess  
of 13” w.c.  
E.  
F.  
G.  
Boiler(s) shall have I=B=R Hydronics Institute gross output(s) at 100% firing  
rate __________ MBH per boiler.  
Boiler(s) shall be 80% minimum DOE efficient as required by National  
Appliance Energy Conservation Act or ASHRAE 90.1.  
Boiler(s) shall be manufactured by ISO 9001 registered company to conform  
to Section IV of the ASME Boiler and Pressure Vessel Code.  
1.  
Individual sections (and section assembly) to be hydrostatically  
pressure tested at factory in accordance with ASME requirements.  
Maximum allowable working pressure 50 PSIG water cast as part of  
section with ASME symbol.  
2.  
H.  
I.  
Regulatory Requirements  
1.  
2.  
Boiler(s) and controls to comply with applicable regulations.  
Add option for local codes, i.e. Mass. Code, BAR.  
Boilers shall have a 10-year non-prorated warranty as outlined in written  
warranty.  
1
c)  
ASME certified pressure relief valve, set to relieve at 30 PSIG.  
Optional relief valves available up to and including maximum  
allowable working pressure. Side outlet discharge type;  
contractor to pipe outlet to floor drain or near floor, not to any  
area where freezing could occur.  
M.  
Boiler Manuals  
1. The boiler(s) shall be provided with complete instruction manuals,  
including:  
a)  
b)  
c)  
Installation Manual  
User’s Manual  
Gas Control Supplements  
Weil-McLain  
500 Blaine Street  
Michigan City, I
C-811(699)  
3

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