14
9-123.5
General
Contractor shall furnish and install Modine model __________
low intensity infrared heater(s). The low intensity infrared
system shall be straight tube________, U-tube_______
configuration. Performance shall be as indicated on the
equipment schedule in the plans. The infrared heater(s) shall be
certified for indoor and outdoor installations. Infrared heater(s)
shall have ETL design certification for use in both the US and
Canada.
Casing
The controls, combustion air blower and burner shall be housed
in a water-resistant casing, providing weatherproof protection.
The burner and control box casing shall be constructed of not
less than 20 gauge aluminized steel. After forming, the casing
parts shall be cleaned of all oils and a phosphate coating
applied prior to painting. The phosphated parts shall then be
finished with an electrostatically applied, gray-green polyester
powder paint finish. The applied polyester powder paint shall
be baked on to provide an attractive finish on all of the exposed
casing parts.
Heat Exchanger
The heat exchanger tubes and combustion chamber shall be
constructed of 16 gauge, 4" O. D. aluminized steel, and the first
combustion tube for gas inputs 150,000 Btuh and greater shall
be 16 gauge 4" O. D. 409 Aluminized Stainless Steel. The last
heat exchanger tube shall incorporate a turbulator baffle for
maximum efficiency of heat transfer.
The heat exchanger tubes must be used in conjunction with
reflectors. The reflector can be adjusted from 0° to 45° from
the horizontal plane. Reflectors shall be of bright polished
aluminum.
Controls
Input power to the infrared heater(s) shall be 115V/60Hz/1ph.
Heater(s) shall be equipped with a direct four-trial (three
re-trial), 100% shut-off eletronic ignition control system
with a separate flame sensor. Infrared heater(s) shall be
equipped with a 115V/25V control transformer. Thermostat
shall operate on 25V. Heater(s) will be equipped with a pre-
purge mode, a differential pressure switch, and an indicator
light to prove proper operation of the gas valve. All controls
shall be rated for a maximum inlet pressure of 1/2 PSI gas
pressure.
Controls shall be designed for natural_______,
propane_______ gas having a specific gravity of _______, a
Btu content of _______ Btu/ft
3
at _______ feet elevation.
Motor
Each heater shall have a single motor. The combustion air
blower motor shall be totally enclosed in the control box and
the motor shall be protected by a thermal overload switch.
The motor shall be .03 H.P., 115 volt, 60 Hz, single phase,
with an operating speed of 3000 rpm.
SPECIFICATIONS, MODEL NOMENCLATURE - MODEL IPT
Figure 13.1 - Model Number Designations
MODEL NUMBER
1, 2, 3 4, 5, 6 7 8, 9 10, 11
IPT
200 S 01 11
S: DIRECT SPARK
MODEL PREFIX:
IMPROVED PRESSURE TUBE: IPT
MBH INPUT: 50, 60, 75,100, 125, 150, 175, 200
MODEL SIZE:
IGNITION TYPE:
11: SINGLE STAGE, NATURAL GAS
21: SINGLE STAGE, PROPANE GAS
CONTROL CODE:
POWER CODE:
01: 115V/60HZ/1PH
DIGIT SEQUENCE
12: TWO STAGE, NATURAL GAS
22: TWO STAGE, PROPANE GAS
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