Schwank STSp-WP - Manual (Page 24)

SP-MSWP-BX-09A
STSp-WP Manual
RD: MAY 2004
RL: 9
KH
Page 20
IMPORTANT:
Do not install the thermostat or
sensors in the direct radiant stream.
WARNING: The heater must be electrically grounded in accordance with
the Canadian Electrical Code.
16. HIGH ALTITUDE INSTALLATIONS
All of the STS-p radiant tube heaters are
approved for altitudes zero to 4500 feet above
sea level and do not require de-rating.
15. ELECTRICAL AND THERMOSTAT WIRING
(SEE WIRING DIAGRAMS PAGES 23, 26)
Wiring must be done in accordance with local
codes. The total load of all heaters must be
considered in determining the required
contact rating of the controlling thermostat or
switch. Each tube heater requires 120V, 60
HZ electrical power sized for 145VA. The heater can be controlled by the Schwank
Tru-Temp Thermostat, a line voltage Ther-
mostat or by an “ON/OFF" switch. Any
heater(s) intended for 24v thermostat control
must be ordered with the 24v control op-
tions.
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 and the orifice
must be changed according to the chart on
page 34
The voltage at the spark ignition control is
24V. Note that proper functioning of t h
e heater will be adversely affected if the in- more than +/- 10%.. Ambient Temperature
rating is minus 40
0 F top plus 175 0 F (-40 0 C
to + 79 0 C)