Sunpak® S34-TSH Infrared Heaters
3
Basic Heater Operation
Sunpak
®
S34-TSH
is a two-stage outdoor gas-fired
infrared heater which is operated with a wired switch. The
heater can be operated at a HIGH setting with an input of
34,000 BTU/Hr or at a LOW setting of 25,000 BTU/HR.
These heaters require a 24 VAC power source.
The fact that these heaters are hardwired to a three-way
switch makes the S34-TSH well suited for commercial
installations. There are no batteries or remote-control
devices to be misplaced. The robust lighted switch makes it
easy to see whether the heater is ON. Switch is prewired
specifically for the Model S34-TSH. Switch is made for 24
VAC only.
NOTE: Sunpak Heater shown with optional Face Trim
The Sunpak
®
S34-TSH should always be started up and operated on the High mode for the first 5 minutes to allow
the heater to warm up. Starting up the heater on the LOW mode before the heater is warmed up may cause the
heater to shut down prematurely. To correct this situation, press the OFF followed by HIGH.
Part No. 12052
TSH Switch with Light
Sunpak
®
heaters have a spark ignition and electronic
flame safety control. The pilot is only ON while the heater
is operating. If the flame safety sensor fails to sense flame
at the pilot, the heater will shut down and lockout. This
may happen due to low gas pressure or a gusty wind. To
restart the heater, first set the switch to OFF before
restarting the heater.
Although these heaters are designed for outdoor
installation and use, it is important that switches,
transformers or other operating controls be protected
from the weather.
The TSH Switch with light is intended for 24 VAC only.
Two input wires hook up to the 24 VAC Transformer.
Polarity must be observed if you are connecting two or
more heaters. Three output wires connect to the heater
for common, low fire and high fire. The blue light on the
switch shines continuously whenever the heater is on.
Ventilation
Heater are not for used in residential dwellings. Heaters
used in an enclosed area require the building to have
necessary ventilation. It is required that areas above the
heater be properly vented to allow for necessary
combustion air and removal of combustion gases
See page 9 for additional details.
Definition of outdoors:
1.
Walls on all sides, but no overhead cover;
2.
A partial enclosure which includes an overhead
cover, but no more than two side walls. These side
walls may be parallel, as in a breezeway, or at right
angles to each other;
3.
A partial enclosure which includes an overhead
cover and three walls as long as 30% of the
horizontal periphery is permanently open.
