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SECTION 4
Engineering Specifications
A. Burner & Burner Controls
1. Burners shall be capable of firing with one of the fuel options as
specified on the rating tag: Natural Gas or LP.
2. Burners shall be supplied to fire at any one of the input rates as
specified.
JET20
80,000 BTU/Hr.
JET25
100,000 BTU/Hr.
3. Burner shall be equipped with a direct spark ignition control
system with 100% shut-off ignition device. Power supplied to each
heater shall be 120V, 60Hz, single phase. Burners shall be rated for
1.0 Amp (run) and 5.0 Amp (start.)
4. Burner shall be equipped with thermal overload motor protection
and a combustion air proving safety pressure switch.
5. When specified, in contaminated environments, the burner
shall be capable of supplying outside air to each burner for the
support of combustion.
6. All burners shall be pre-wired with a grounded electrical
cord and plug.
7. At customer's choice, burners may be controlled with either
an optional line voltage thermostat or by optional low voltage
thermostats with an appropriate low voltage transformer relay.
8. Gas supply to the burners shall conform to the following:
Gas pressure at MANIFOLD:
Natural Gas:
3.5" W.C.
LP Gas:
10.5" W.C.
1/2" NPT Gas Connector Size
Gas INLET pressure:
Natural Gas:
4.6" W.C. Min
14.0" W.C. Max
LP Gas:
11.0" W.C. Min
14.0" W.C. Max
1/2" NPT Gas Connector Size
B. Heat Exchanger
1. R adiant tubing shall be :
- J ET20 shipped with 3" diameter aluminized steel tube and 3.5"
diameter hot rolled steel tube.
- J ET25 shipped with 3.5" diameter aluminized steel tube and 4"
diameter hot rolled steel tube.
2. Reflector to be of aluminum material and designed to direct all
radiant output below horizontal center line of radiant tube.
Electrical Rating: (All Models)
120V - 60Hz
1.0 AMP (Run) 5.0 AMP (Start)
Dimensions:
Flue Connection Size.....................3.5"(JET20) or 4"(JET25)
Outside Air Connection Size.........4"
Enerco | Heatstar AG Series Heater
SECTION 5
AIR INTAKE / VENTING
Outside Combustion Air Supply
The Heatstar AG heater is approved for installation with an outside
air supply system that requires fresh air at normal atmospheric
pressure. Some compounds such as halogenated hydrocarbons or
other corrosive chemicals in the air can be drawn into the equipment
and cause an accelerated rate of corrosion of some of the heater
components. The use of such chemical compounds near the
enclosure should be avoided.
It is recommended that inlet air be drawn in from the attic but you
may also draw inlet air from the sidewall for houses without an attic
(See figures 13A and 13B). Air inlet terminations shall not be affected
by building ventilation fans. Air intake kit, F1 1 1756, is available for
purchase to complete the installation when drawing air through the
attic. When drawing air through the sidewall supplies will have to be
obtained through an outside source.
IMPORTANT:
•DO NOT draw inlet air from inside the poultry confinement
area.
•If the attic has a slight negative pressure or contaminants
are present in the air, an outside combustion air supply to the
heaters is strongly recommended.
•The pressure switch will not close causing the heater not to
operate if the intake is blocked by insulation in the attic. We
recommend double checking that the intake isn't blocked after
initial installation as well as in betweeen flocks when it is
known that the attic has blown in and loose insulation.
•Always attach your air inlet system to the burner box with
a flexible section. This piece should be free of kinks and as
straight as possible, no more than one 90° bend.
WARNING
Failure to provide a fresh air inlet in poultry farms can lead to:
- Sooting causing damage
- H igh carbon monoxide levels, causing serious injury or death to
livestock and humans
- Higher temperature differences over the length of the tubes,
causing problems in temperature control and bird performance.
Ventilation
Ventilation equal to 4 CFM per 1,000 BTU/HR firing rate must be
provided in unvented heater installations.
9
Operating Instructions and Owner's Manual
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