Thermo Products OPB (24 User Manual

All installations and services must be performed by qualified service personnel. 
 

REFERENCES 

 
1.  International Approval Services-U.S. Inc. and the National Fire Protection 

Association, 1996, National Fuel Gas Code, ANSI Z223.1-1996/NFPA 54-1996, 6th 
Ed., pp. 10 & 13. 
 

2.  Earley, M.W., Sheehan, J.V., Caloggero, J.M., 1999, National Electrical Code 

Handbook, 8th Ed., National Fire Protection Assoc., Inc., pp. 142, 143, 256, & 502-
510. 

 
3.  American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., 

1997, ASHRAE Handbook – Fundamentals, pp. 19.9, 32.1-32.50.  

 
4.  Lindeberg, M.R., 1984, Mechanical Engineering Review Manual, 7th Ed., 

Professional Engineering Registration Program, San Carlos, CA, pp. 5-8 & 5-9. 

 
5.  Avallone, E.A., Baumeister III, T., 1996, Marks’ Standard Handbook for Mechanical 

Engineers, 10th Ed., McGraw-Hill, New York, pp. 12-88 & 12-89. 

 

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