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FIG. 1
r---
I
?
!
-ASME R[[J_¥
VALVE
C_
VI£NT
l
l
,-_ .....
-I,
[_-----
J
i<\/
I;[ HPT
, \
\
"_
i \.A
L
......
,.Lr'--_l_ [
i
LEFT S;DE
DAMPER
ENCLOSED
SCOHTROL_
• _AJN VALVE %
COH_OL
--A
u
hr_
I I
II
I
I
I
I
I
i
i
I
I
_._L_
_.1__ _1__ _
TEMP./PRESS.
GAUGE
J I
r' 'E'r'PPLE
31 ?
GAS VALVE
RIGHT SIO[
®
BASIC BOILER MODEL NO.
ConUnuous
Pilot
With
Vent Damper
KWX-3V
KWX-4V
KWX-5V
KWX-6V
KWX-7V
KWX-8V
KWX-9V
NO. OF
SECTIONS
3
4
5
6
7
8
9
AGA/CGA
INPUT
*MBH
70
105
140
175
210
245
280
NATURAL
GAS
HEATING
CAPACITY
*MBH
NET
I=B=R
Ratin9*MBH
5O
74
98
123
148
172
197
FLUE
DIAMETER
DIMENSIONS
(INCHES)
"A"
WIDTH
57
85
113
142
170
198
226
5
6
6
7
7
7
7
11 1/4
14 1/2
17 ¾
21
24 1/4
27 1/2
30 ¾
* MBH = 1,000 Btuh
Btuh = British Thermal Unit Per Hour
a
For altitudes above 2,000 ft. ratings should be reduced at the rate of 4 _ for each 1,000 ft. above sea level•
Heating Capacity is based on D.O.E (Deparirnent of Energy) test procedure.
**Add 5 ½" to height for Vent Damper.
The Ratings
marked
"Net I=B-R
Ratings"
indicate
the amount of remaining
heat input that can be used to heat the radiation
or terminal
Units.
The net I=B=R
Ratings
shown are based on an allowance
of 1.15 in accordance
with the factors shown on the I=B=R Standard
as published
by the Hydronies
Institute.
Selection
of boiler size should be based upon "Net I=B=R Rating"
being equal to or greater
than the calculated
heat loss of the building.
The Manufacturer
should be consulted
before selecting
a boiler for installations
having
unusual
piping and pickup requirements.
These boilers must stand on a non-combustible
floor.
If installed
on a combustible
floor, use
Combustible
Floor
Base Number
42135-1
or 146-14-031
(3-6 section boilers)
or 42135-2
or 146-14-032
(7-9 section boilers).
BOILERS
FOR
USE AT HIGH
ALTITUDE
This boiler is factory equipped
for use at altitudes
of 0-2,000
feet above sea level.
For use at altitudes
above sea level, the input
ratings are reduced
by a change
in main orifice size.
For altitudes
above
2,000 feet above sea level, input ratings should be reduced
at the rate of 4% for each 1,000 feet
above sea level.
Consult the National
Fuel Gas Code (NFPA54/ANSI
Z223.1-1atest
edition),
or the manufacturer
for correct orifice
sizing information.
High altitude
orifices are available
from the boiler manufacturer.
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