Weil-McLain CGI-4E Boiler User Manual


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Part Number 550-110-711/1108
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CGi-4E Gas-Fired Water Boiler — Boiler Manual
Venting — Direct exhaust — components3c
Obtain vent system components
1. ThefollowingspecialgasventsystemscomplywithUL-1738andULC-
S636standardsandarecertiedbyCSAastheonlysystemssuitablefor
usewithCGi-4Eboilers(all3”diameter):
• Heat-Fab,Inc.
Saf-T Vent
®
• Flex-LInternational,Inc.StaR-34
• Z-Flex®,Inc.Z-Vent II
• ProTechSystemsFasNSeal™
Use only the vent starter of the same manufacturer as
theventcomponents.Donotmixcomponentsfrom
different systems. The vent system could fail, causing
flue gas spillage, resulting in severe personal injury or
death.
2. Selectventmethodbasedonpage14andinstallationrequirements.
3. Refer to
Table 4 for maximum vent run lengths and number of elbows.
DonotexceeddatainTable 4.
4. Selectventcomponentsfromseparate
Vent Supplement. All compo-
nents, including the vent starter, must be of the same vent manufacturer.
Donotmixcomponents.
Table 4 Maximum vent length (feet)
Max.vent
length (feet)
Total number of elbows
(Note 1)
1 2 3 4 5 6
CGi-4E
55 48 41 34 27 20
Note 1: Do not include termination fitting when counting total number of elbows.
ReadandfollowthespecialinstructionsfortheCom-
monwealth of Massachusetts, located on page 42 of this
manual.
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