Product Description; Specifications - Crown Boiler AWR070 Installation Instructions Manual

The AWR series boiler is a cast iron gas fired water boiler designed for use in closed forced circulation heating systems.
This boiler is a Category I drafthood equipped appliance, which must be vented by natural draft using a lined masonry
or listed metal chimney system. An adequate supply of air for combustion, ventilation and dilution of flue gases must be
available in the boiler room.
FIGURE 2.1: GENERAL CONFIGURATION
RATINGS - NATURAL AND LP GASES
BASIC
BOILER
NUMBER
MODEL
OF
SECTIONS
AWR038E 2
AWR070E 3
AWR105E 4
AWR140E 5
AWR175E 6
AWR210E 7
AWR245E 8
AWR280E 9
Notes:
The Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15.
The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system opera-
tion, extensive piping systems, etc.
Add Suffix N for Natural Gas or Suffix L for Propane Gas to basic AWR Boiler Model shown (Example: AWR210EN, AWR210EL)
I Product Description
II Specifications
TABLE 2.2: SPECIFICATIONS
HEATING
INPUT
CAPACITY
MBH MBH
38 32
70 58
105 87
140 117
175 146
210 175
245 205
280 234
NET AHRI
RATING, AFUE
WATER
MBH
28 82.8
50 82.9
76 82.9
102 83.0
127 83.1
152 83.1
178 83.2
203 83.3
3
DIMENSIONS
(INCHES)
'A' 'B'
%
9-3/4 31-1/2
12-7/8 31-1/2
15-3/8 31-1/2
18-1/2 31-1/2
21-1/2 31-3/4
24-5/8 33-1/2
27-5/8 33-1/2
30-3/4 33-1/2
'C'
4
4
5
6
7
7
8
8