Product Overview

WM2008_BRO_034 CGa
TOP VIEW SIDE ELEVATION
6
7
3
6
6
7
2
Fresh air
opening
35
6¼
TOP VIEW
LEFT SIDE RIGHT SIDEFRONT
28⅜
H
19
13⁄
A
D
13¼
12
23¼ 1⅝
W9
4¾
NOTE
NOTE
4¾
2⅜
CGa
19
In the interest of continual improvement in product and
performance, Weil-McLain reserves the right to change
specifications without notice.
STANDARD EQUIPMENT:
BOILER
■
Integrated Boiler Control Module with
intermittent electronic ignition system
& indicator/diagnostic lights
■
Integrated low-water cuto,
with test button
■
Two-piece top jacket panel
■
Insulated extended steel jacket
■
Cast iron sections with built-in air
separator
■
Radiation plates
■
Vertical draft hood
■
Automatic vent damper
■
Combination gas valve
for 24 volt
■
Wiring harness
■
Non-linting pilot burner
■
Stainless steel burners
■
Electrical junction box
■
Rollout thermal fuse element
■
High-limit temperature control
■
Circulator (when ordered)
− Sizes 25–5: Taco 007e
− Sizes 6–8: Taco 007
■
Spill switch
■
30 PSI ASME relief valve
(boiler sections tested for 50 PSI
working pressure)
■
Combination pressure-temperature
gauge
■
Drain valve
■
40 VA transformer
■
Plug-in connector and wiring
ADDITIONAL EQUIPMENT:
■
Expansion tank package —
shipped in separate carton
(expansion tank, fill & check valve,
auto air vent and fittings)
■
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 and existing relay panel wired
into the systtem and boiler, to separate
DHW from space heating demands.
LIMITED TRANSFERABLE
WARRANTY:
■
Residential: 20 Years Heat Exchanger;
2 Years Parts
■
Commercial: 10 Years Heat Exchanger;
1 Year Parts

Add "PIN" for natural gas, "PIL" for propane.

Based on standard test procedures prescribed by the
United States Department of Energy.
4
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.
Model
Dimensions (in.)
Supply
Piping
(in.)
1
Return
Piping
(in.)
1
Nat or LP
Gas
Connection
Size (in.)
Carton Dimensions –
Outside Measurements
(in.)
A D W H L W H
CGa-25 5 4 10 45⅜ ¾ ¾ ½ 30 27½ 35
CGa-3 5 4 10 52⅜ 1 1 ½ 30 27½ 35
CGa-4 6½ 5 13 54⅜ 1 1 ½ 30 27½ 35
CGa-5 8 6 16 57⅞ 1 1 ½ 36 27½ 35
CGa-6 9½ 6 19 60⅞ 1¼ 1¼ ½ 42 27½ 35
CGa-7 11 7 22 62⅛ 1¼ 1¼ ¾ 42 27½ 35
CGa-8 12½ 7 25 64⅞ 1½ 1½ ¾ 42 27½ 35
CGa boilers are C.S.A. design certified for installation on combustible flooring. Tested for 50 PSI working pressure.
Model
2
Input
MBH
3
DOE
Heating
Capacity
MBH
3
Net AHRI
Water
Ratings
MBH
4
AFUE
Approx.
Shipping
Weight
(Lbs.)
Boiler
Water
Content
(Gal.) Chimney Size
CGa-25 38 32 27 84.0% 200 1.5 4" I.D. x 20'
CGa-3 67 56 48 84.0% 200 1.5 4" I.D. x 20'
CGa-4 100 85 73 84.0% 240 2.1 5" I.D. x 20'
CGa-5 133 113 98 84.0% 280 2.7 6" I.D. x 20'
CGa-6 166 141 122 84.0% 325 3.3 6" I.D. x 20'
CGa-7 200 170 147 84.0% 370 3.8 7" I.D. x 20'
CGa-8 233 198 172 84.0% 425 4.4 7" I.D. x 20'
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
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.
DIMENSIONS