Before Installing; Iii. Before Installing - Crown Boiler PHNTM120 Installation And Operation Instructions Manual

MAXIMUM
MODEL* INPUT
(MBH)
PHNTM080 80
PHNTM100 100
PHNTM120 120
PHNTM150 150
PHNTM180 180
* 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 operation, extensive piping
systems, etc.
MODEL
080
080
100
100
120
150
180
See Part VII (Venting) for additional requirements and details.
1) Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict accordance
with this manual and the requirements of the authority having jurisdiction.
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and the National Fuel Gas Code, ANSI Z223.1. In Canada, installation must be in accordance with the B149.1
Installation Code.
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and Safety Devices for Automatically Fired Boilers (ANSI/ASME CSD-1).
2) Read Section VII to verify that the maximum combustion air and exhaust pipe lengths will not be exceeded in the
planned installation. Also verify that the vent terminal can be located in accordance with Section VII.
3) Make sure that the boiler is correctly sized:
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method such as the I=B=R Guide RHH published by the Air-Conditioning, Heating and Refrigeration Institute
(AHRI).
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D.O.E.
MINIMUM
HEATING
INPUT
CAPACITY
(MBH)
(MBH)
16 74
20 92
24 111
30 141
36 167
NOMINAL
VENT/INTAKE
SIZE (in)
2
3
2
3
3
3
3
III Before Installing
AHRI NET WATER
RATING* VOLUME DIM "A"
(MBH) (Gal.)
64 0.36
80 0.44
97 0.53
123 0.79
145 0.79
Table 2.3: Vent Lengths
MIN VENT
LENGTH (in)
12
12
12
12
12
52
52
5
SUPPLY &
RETURN
CONNECTION
CONNECTION
SIZE (NPT)
SIZE (NPT)
17" 1"
17" 1"
17" 1"
21" 1"
21" 1"
DERATE AT
MAX VENT MAX VENT
LENGTH
60ft
135ft
60ft
135ft
135ft
135ft
135ft
APPROX.
GAS
NET
WEIGHT
(lb)
1/2" 100
1/2" 102
1/2" 105
1/2" 119
1/2" 119
APPROX.
(%)
9
2
15
3
7
7
9