GOLD CGi Gas-Fired Water Boiler — Boiler Manual

13b Ratings

 

 

 

 

 

 

 

 

 

 

 

DOE

 

 

 

 

 

 

 

 

 

 

 

 

Table 10 

Boiler ratings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Boiler

 

DOE

0–2,000 feet

2,000–4,500 feet

Net

Boiler

 

DOE

Vent

model

 

Heating

altitude

altitude

I=B=R

water

 

Seasonal

size

number

 

capacity

 

 

 

 

ratings

content

 

efficiency

 

 

Input

Output

Input

Output

 

 

 

 

(Btuh)

(Btuh)

(gallons)

 

(% A.F.U.E)

 

 

 

 

(Btuh)

(Btuh)

(Btuh)

(Btuh)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Note 1)

 

(Note 2)

 

 

 

 

(Note 3)

 

 

 

(Note 4)

 

 

 

 

 

 

 

 

 

 

 

 

CGi-25

 

42,000

50,000

42,000

45,000

38,000

37,000

1.5

 

84.0

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-3

 

51,000

60,300

51,000

54,300

46,200

45,000

1.5

 

85.1

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-4

 

85,000

100,000

85,000

90,000

76,000

74,000

2.1

 

84.0

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-5

 

100,000

119,700

100,000

108,000

90,000

87,000

2.7

 

83.3

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-6

 

140,000

167,000

140,000

150,000

126,000

122,000

3.3

 

83.3

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-7

 

167,000

200,000

167,000

180,000

150,000

145,000

3.8

 

83.0

3"

 

 

 

 

 

 

 

 

 

 

 

 

CGi-8

 

194,000

233,000

194,000

210,000

175,000

169,000

4.4

 

82.7

3"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

Notes

 

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

 

 

of 1.15. An additional allowance should be made for unusual piping and pickup loads.

 

 

 

 

 

 

 

4. CGi boilers require special venting, consistent with Category I or III boiler. Use only the vent materials and

 

 

methods specified in this manual. Vent diameter shown above is for direct exhaust venting. See Table 3,

 

 

page 14, for vent diameter when chimney draft venting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGi boilers for residential radiant panel systems, converted gravity heating systems or other low water tempera- ture 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 550-110-710/0107

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Weil-McLain 550-110-710/0107 manual 13b Ratings