Schwank ATH Brooder/Agricultural Series - Manual (Page 18)

GP-MATH-BX-10A
ATH / IA Manual
RD: Nov, 2005
RL: 10
KH
Page 14
Each individual tube heater requires 120 Volts 60 Hz electrical power sized for 145VA. The
heater can be controlled by a line voltage thermostat or "ON/OFF" switch.
IMPORTANT:
Do not install the thermostat in the direct radiant stream.
The voltage at the spark ignition control is 110V. Note that proper functioning of the
heater will be adversely affected if the input voltage varies by more than +/- 10%
WARNING:
The heater must be electrically grounded in accordance with the current Electrical Code.
It is good wiring practice and the installers responsibility to ensure that correct wiring polarity
is maintained throughout installation. The Fenwal DSI control is polarity sensitive and WILL
malfunction if the polarities are reversed. The black wire MUST be wired to Hot, and the white
wire MUST be wired to Neutral. If the polarity is reversed the module will not function cor-
rectly and will eventually burn out.
14. HIGH ALTITUDE INSTALLATIONS
In Canada all of the ATH radiant tube heaters are approved for altitudes zero to 4500 feet
above sea level and do not require de-rating.
In the USA if a heater is to be installed at altitudes above 2000 ft, the input must be reduced by
4% per 1000 ft. If your local utility de-rates the heat content in the gas supply, no modification
of the heaters is required. If the gas supply is not de-rated the orifice must be changed according
to the chart on page 27. Check with your local utility regarding de-rating of this appliance.