Owner`s manual

GP-MSJW-CX-07B
STW-JZ / IW Manual
RD: Sept, 2005
RL: 7B
KH
IMPORTANT:
Do not install the thermostat or
sensors in the direct radiant stream.
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 Tru-
Temp Thermostat, a line voltage Thermostat
or by an “ON/OFF" switch. Any heater(s)
intended for 24v thermostat control must be
ordered with the 24v control options.
Page 22
WARNIN G: The heater must be electrically grounded in accordance with
the National Electrical Code. ANSi/NFPA 70 or current Canadian Electrical
Code CSA C22.1
16. HIGH ALTITUDE INSTALLATIONS
Canada: All of the STW-JZ / IW radiant tube
heaters are approved for altitudes zero to
4500 feet above sea level and do not require
de-rating.
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 modifi-
cation of the heater is required. If the gas sup-
ply is not de-rated, the orifice must be
changed according to the chart on page 35.
Check with your local utility regarding de-
rating of this appliance.
The voltage at the spark ignition control is
24V. Note that proper functioning of the
heater will be adversely affected if the input
voltage varies by more than +/- 10%.. Ambi-
ent Temperature rating is minus 40
0
F top
plus 175
0
F (-40
0
C to + 79
0
C)