Weil-McLain PFG Series Benutzerhandbuch

                            

 

1  

 

 

 

A. 

Furnish and install _____ (qty) packaged atmospheric gas cast iron sectional 
boiler(s). 

 
B. 

Install packaged boiler unit(s) according to manufacturer’s installation 
instructions.  All work to be done in a neat and workmanlike manner. 

 
C. 

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. 

Boiler(s) shall have I=B=R Hydronics Institute gross output(s) at 100% firing 
rate __________ MBH per boiler. 

 
F. 

Boiler(s) shall be 80% minimum DOE efficient as required by National 
Appliance Energy Conservation Act or ASHRAE 90.1. 

 
G. 

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. 

2. 

Maximum allowable working pressure 50 PSIG water cast as part of 
section with ASME symbol. 

 

H. Regulatory 

Requirements 

1. 

Boiler(s) and controls to comply with applicable regulations. 

2. 

Add option for local codes, i.e. Mass. Code, BAR. 

 

I. 

Boilers shall have a 10-year non-prorated warranty as outlined in written 
warranty.