Before Installing - U.S. Boiler Company K2 Installation Instructions Manual

Table 2.2: Specifications
Maximum
Model* Input
(MBH)
K2-080 80
K2-100 100
K2-120 120
K2-150 150
K2-180 180
* 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.
Table 2.3: Vent Lengths
Model Vent/Intake Size
K2-080
K2-080
K2-100
K2-100
K2-120
K2-150
K2-180
See Section 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.
• In the absence of an authority having jurisdiction, installation must be in accordance with this manual
and the National Fuel Gas Code, ANSI Z223.1. In Canada, installation must be in accordance with the B149.1
Installation Code.
• Where required by the authority having jurisdiction, this installation must conform to the Standard for Controls
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:
• For heating systems employing convection radiation (baseboard or radiators), use an industry accepted sizing
method such as the I=B=R Guide RHH published by the Air-Conditioning, Heating and Refrigeration Institute
(AHRI).
• For new radiant heating systems, refer to the radiant tubing manufacturer's boiler sizing guidelines.
• For system which includes an indirect water heater, make sure the boiler has the output called for by the indirect
water heater manufacturer's instructions.
8
II. Specifications
D.O.E.
Minimum AHRI Net
Heating
Rating *
Input
Capacity
(MBH)
(MBH)
16 74
20 92
24 111
30 141
36 167
Nominal
Min Vent Length
(in)
2
3
2
3
3
3
3
iii. Before installing
(continued)
Water
Dim.
Volume
"A"
(MBH) (gal.)
64 0.36 17"
80 0.44 17"
97 0.53 17"
123 0.79 21"
145 0.79 21"
Max Vent Length
(in)
12 60 ft
12 135 ft
12 60 ft
12 135 ft
12 135 ft
52 135 ft
52 135 ft
Supply & Return
Gas Connection
Connection
Size (NPT)
Size (NPT)
1" 1/2"
1" 1/2"
1" 1/2"
1" 1/2"
1" 1/2"
Approx.
Derate at Max Vent
(%)
9
2
15
3
7
7
9
Approx.
Net
Weight
(lb.)
100
102
105
119
119
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