Weil-McLain CGi Series 3 Installation And Maintenance Manual page 68

CG i
GAS- FIRED wATER
eo1LER -
sERIEs
a -
Boiler Manual
13a
Dimensions
Figure 44 Dimensional drawing
(!)
Supply piping (note
I)
t
®
Return piping (note
1)
®
Relief valve,
:Y.."
NPT
11\ii
!
@
y,•
NPT to expansion tank/air vent
®
3" Diam et er vent
TOP VIEYI
ALL DIMENSIONS IN INCHES
·~
,,
..
LEFT SIDE FRONT
Boiler Supply Return Gas
model tapping tapping connection size
number
(inches NPT) (inches NPT)
Note3
(inches NPT)
CGi-25
1 %
1 % Y>
CGi-3 1 %
1 %
Y>
CGi-4
1 %
1 % Y>
CGi-5
1 %
1 %
Y>
CGi-6
1 %
1 %
Y>
CGi-7
1 %
1 %
:y..
CGi-8
1 %
1 %
:y..
@
Gas supply piping
®
Drain valve
@J Gas supply entrance (right or left side)
®
Pressure/temperature gauge
Hotel: 8041 c.r s upply and return tappings are both 1!.4" NPT.
See Table 6, page 20 for recommended system
wp-
plyand retump!plng
sizes.
Nole2: Soller circulator is shippOO loose. Circulator may be
mounted on eilher boiler supply or return piping.
C irculator 11ange provided
witfl
boiler is same size as
recommend-ed pipe siZe in Table 6, paoe 20.
•
19
-'-
...
._..,..,
__
_._
__
,...,.,
RIGHT SIDE
Gas
uwu
manifold size Jackat
Note3 width
(inches NPT) (inches)
'h
10
'h 10
'h 13
'h 16
'h 19
:y..
22
:y..
25
Note 3: Gas piping from meter to boiler to
be
sized per local utility requirements.
68
Part Number 550-142-780/0712