Install Instructions

CG i GAS - FIRED wATER eo1LER - sERIEs a - Boiler Manual
13a Dimensions
Figure 44 D im ensional drawing
(!) Su pp ly piping (n ote I)
t
® Return pipi ng (note 1)
® Relief valve, :Y.." NPT
11\ii
!
@ y, • NPT to expansion tank/air vent
® 3" Diameter vent
TOP VIEYI
ALL DIMENSIONS IN INCHES
·~
,, ..
LEFT SIDE FRONT
Boiler Supply Return Ga s
model tapping tapping connection size
number
(inches NPT) (inches NPT)
Note3
( in ches 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..
@ G as su pp ly piping
® Dr ain valve
@J Gas supp ly entrance ( ri g ht or le ft side)
® Pressure/te mp erature gauge
Hote l: 804 1 c.r su pp ly and re t urn tappings are both 1 !.4" NPT .
See T ab le 6, page 20 for recommended sys t em wp-
plya nd retump!plng sizes.
Nole 2: Solle r circu l ator is sh ipp OO loose . Circulator may be
mounted on eilher boi l er supp ly or return pipi ng .
Ci rculato r 11ange provided witfl boiler is same si ze as
recommend-ed pi pe siZe in Tab le 6, paoe 20 .
•
19
-'- ... ._..,.., __ _._ __ ,...,.,
RIGHT SI DE
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 si zed per local utili ty requirements.
68 Part Number 550-142-780/0712