Weil-McLain CGS-4E manual 13b Ratings, Tested for 50 psi working pressure

GOLD CGs-4E Gas-Fired Water Boiler — Boiler Manual

13b Ratings

							DOE
									(Note 5)
Table 7  Boiler ratings
Boiler	DOE	0-2,000 feet		2,000-4,500 feet		Net	Boiler	DOE	Vent
model	Heating					I=B=R	water	Seasonal	size
		Input	Output	Input	Output
number	capacity					ratings	content	efficiency
	(Btuh)	(Btuh)	(Btuh)	(Btuh)	(Btuh)	(Btuh)	(gallons)	(% AFUE)
(Note 1)	(Note 2)					(Note 3)		(Note 5)	(Note 4)
CGs-4E	77,000	90,000	77,000	81,000	69,300	67,000	2.1	85.0	3”
(Note 5)

1.Add “PIN” for natural gas boiler - “PIL” for propane gas boiler.

2.Based on standard test procedures prescribed by the United States Department of Energy.

3.Net I=B=R ratings are based on net installed radiation of sufficient quantity for the requirements of the building

	and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance
Notes	of 1.15. An additional allowance should be made for unusual piping and pickup loads.

4.The CGs-4E boiler requires special venting, consistent with Category IV boiler. Use only the vent materials and methods specified in CGs vent supplements. The CGs-4E boiler MUST be direct-vented (using 3” diameter air piping) as specified in the direct vent supplements.

5.As an Energy Star Partner, Weil-McLain has determined that the CGs-4E meets the Energy Star guidelines for energy efficiency.

CGs-4E boilers used for residential radiant panel systems, converted gravity heating systems or other low water temperature applications should be installed with balancing valves and bypass piping equal to the supply and return size to avoid excessive flue gas condensation due to lower operating water temperatures. For alternate piping, contact your Weil-McLain sales office. CSA design certified for installation on combustible flooring.

Tested for 50 psi working pressure.

Part number 550-110-282/1108

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