CGi Brochure

WM2003_BRO_033 CGi
NOTE
NOTE
FRONT
TOP VIEW
LEFT SIDE RIGHT SIDE
11⅛
2¼
2⅜
13⁄
19
1⅝
2⅜
W 12
23¼
28⅜
4¾13¼ 4¾
19
In the interest of continual improvement in product and
performance, Weil-McLain reserves the right to change
specifications without notice.

Add “PIN” for natural gas, “PIL” for propane.
Based on standard test procedures prescribed by the United States Department of Energy.
Net AHRI ratings are based on net installed radiation of sucient quantity for the requirements of the building and
nothing needs to be added for normal piping and pick-up. Ratings are based on a piping and pick-up allowance of 1.15.
An additional allowance should be made for unusual piping and pick-up loads.
Refer to National Fuel Gas Code, ANSI Z223.1-latest edition for chimney sizing and vent connector lengths.
CGi boilers are C.S.A. design certified for installation on combustible flooring. Tested for 50 PSI working pressure.
INDUCED DRAFT VENTING OPTIONS
DIRECT EXHAUST VENTINGNATURAL DRAFT VENTING
NOTE: Boiler circulator is shipped loose. Circulator may be mounted on either boiler supply or return piping. See dimension
chart for pipe size of circulator flange provided.
Model
Dimensions
inches W
Supply Piping
(in.)
1
Return Piping
(in.)
1
Nat or LP Gas
Connection
Size (in.)
CGi-25 10 ¾ ¾ ½
CGi-3 10 1 1 ½
CGi-4 13 1 1 ½
CGi-5 16 1 1 ½
CGi-6 19 1¼ 1¼ ½
CGi-7 22 1¼ 1¼ ¾
CGi-8 25 1½ 1½ ¾
Model
2
CSA Input
MBH
3
DOE
Heating
Capacity
MBH
3
Net AHRI
Water
Ratings
MBH
4
AFUE
Approx.
Shipping
Weight
(Lbs.)
Boiler
Water
Content
(Gal.)
Minimum
Vent
Connector
Diameter
5
CGi-25 48 41 35 84.0% 200 1.5 4" O.D.
CGi-3 58 49 42 84.0% 200 1.5 4" O.D.
CGi-4 90 77 66 84.0% 245 2.1 5" O.D.
CGi-5 119 102 88 84.0% 290 2.7 5" O.D.
CGi-6 158 135 117 84.0% 335 3.3 5" O.D.
CGi-7 190 162 140 84.0% 390 3.8 6" O.D.
CGi-8 222 189 164 84.0% 420 4.4 6" O.D.
1
Circulator flange supplied with boiler is the same size as recommended pipe size. For supply and return boiler tapping size,
see installation manual.
RATINGS
STANDARD EQUIPMENT:
BOILER
■
Integrated boiler control module with
intermittent electronic ignition system
& indicator / diagnostic lights
■
Integrated low-water cuto,
with test button
■
Combination pressure-
temperature gauge
■
Two-piece, top jacket panel
■
Insulated extended steel jacket
■
Cast iron sections with built-in
air separator
■
Radiation plates
■
Steel base
■
Inducer assembly
(with cover — sizes 25–6 only)
■
Flue gas collector / transition assembly
■
Combination gas valve for 24 volt
■
Wiring harness
■
Air pressure switch
■
Non-linting pilot burner
■
High-grade stainless steel burners
■
40 VA transformer
■
Electrical junction box
■
Rollout thermal fuse element
■
High-limit temperature control
■
Circulator (when ordered)
− Sizes 25–5: Taco 007e
− Sizes 6–8: Taco 007
■
30 PSI ASME relief valve
(boiler sections tested for
50 PSI working pressure)
■
Drain valve
ADDITIONAL EQUIPMENT:
■
CGi AL29-4C stainless steel
vent starter kit
■
Outdoor reset kit
(part #381-356-586) Low cost, simple
plug-in sensor — check local utility
program for possible rebate.
■
Zone interface harness kit (part
#381-356-585)
Used to communicate
between an existing relay panel wired
into the system and boiler, to separate
DHW from space heating demands.
■
Expansion tank package —
shipped in separate carton
(expansion tank, fill & check
valve, auto air vent and fittings)
■
High Altitude Kits
■
Weil-McLain five- and ten-year
homeowner protection plan
LIMITED TRANSFERABLE
WARRANTY:
■
Residential: 20 Years Heat Exchanger;
2 Years Parts
■
Commercial: 10 Years Heat Exchanger;
1 Year Parts
DIMENSIONS
9"