SYSTEM INSTALLATION AND SERVICE
AT AND 3T STEAMERS
4211-103 10-10-11 Page 8
SECTION 5: WIRING INSTRUCTIONS
1. T100 CONTROL CABLE ROUGH IN
The low voltage control can be mounted up to 25 feet from the generator either inside or outside the steam
room.A25’ shielded 8 conductor cable (provided) is required for connecting theT100 control to the steam
generator. String the 25’ cable from the control location through 1/2” holes in the wall studs or ceiling joists
to the generator. Note: Do not staple through or damage cable. Use factory supplied cables only.
2. TEMPERATURE SENSOR CABLE ROUGH-IN
It is recommended that the sensor be mounted in the steam room 6” from the ceiling, but not directly over
the steam dispersion head or more than 7 feet above the floor. String the sensor cable from the sensor
location through 1/2” holes in the wall studs or ceiling joists to the generator location. Leave 12” of slack at
the sensor location. Note: Do not staple through or damage cable. Use factory supplied cables only.
3. ELECTRICAL ROUGH-IN
Size wire for each generator as indicated by the Electrical Information Chart on page 9. Use correct size
and type to meet electrical codes. Leave 4 feet of slack wire at generator location to finish hookup. Con-
nect the generator to a dedicated circuit breaker.
4. ELECTRICAL FINISH
At the generator, route the copper supply wire with a 3/8” strain relief through the hole marked POWER
ENTRY. Connect the supply wires to terminals marked L1 and L2 (and L3 for three phase). Connect the
supply ground to the ground lug (green screw). Refer to the wire diagrams at the end of this document
for your model.
Note: AT12 andAT14 single phase units require two separate supplies. Refer to the electrical chart and
wire diagram when connecting these units.
5. INSTALL T100 CONTROL
The low voltage control can be mounted directly to a finished wall either inside or outside the steam room.
Using the supplied template, cut a hole in the finished wall where the control is to be mounted (the control
cable should already be roughed-in to this location). Locate the control cable and plug it into the back of
the control housing. See diagram 11. Run a bead of 100% silicone caulk around the perimeter on the back
of the control housing. Insert the T100 into the finished wall, center the control and tape the control against
the finished wall while the silicone hardens.
6. INSTALL THE TEMPERATURE SENSOR
The temperature sensor should be mounted 6” below the ceiling, inside the steam room, but not directly
over the steam dispersion head or more than 7 feet above the floor. Using a 7/8” hole saw, drill a hole in
the finished wall where the sensor is to be mounted (the sensor cable should already be roughed-in to this
location). Locate the sensor cable, pull it out through the hole and plug it into the temperature sensor. It is
best to tape the sensor and cable connection together to avoid disconnection inside the wall.Apply silicone
caulk as shown in diagram 8 and insert the sensor in the hole.
SECTION 4: PLUMBING THE GENERATORS (continued)
7. Water Quality Requirements
The nature of a steambath generator requires testing of the feedwater to avoid potentially high concentrations of impurities which can cause a de-
posit or scale to form on the internal surfaces. This deposit or scale can interfere with the equipment’s proper operation and even cause premature
failure. Concentration of impurities is generally controlled by treating the feedwater and/or “blowing down” the generator when it is not heating. The
blow down process involves removing a portion of the tank’s water with high solid concentration and replacing it with makeup water.
To ensure proper operation, the water supply should be tested prior to operating the equipment. There are several treatment processes which can
be used if you have a water quality problem.A local reliable water treatment company can
recommend the appropriate treatment if required. Recommended water quality is listed below:
Feed Water Quality
Hardness 10 - 30 ppm (5.1 - 1.75 gpg)
T-Alkalinity 150 - 700 ppm (8.75 - 40.8 gpg)
Silica Range 15 - 25 ppm (1.28 - 1.45 gpg)
PH (strength of alkalinity) 10.5 - 11.5
WARNING
ELECTRICAL SHOCK HAZARD!
Hazardous voltage is exposed inside
the steam generator. Shut off all power
to the generator before servicing.
Supply electrical power through
copper wire rated 75C minimum.
IMPORTANT
AGFI device is not required by ULor NEC.
One may be installed if required by
local codes or the owner.AGFI device
will tend to nuisance trip due to
heater element aging.
To reduce the risk of electrical interference
from other devices, use only a shielded
cable to connect the T100 control
to the steam generator.
IMPORTANT
Regular maintenance will help your steamer
work properly for a long time. Check for leaks,
loose or damaged wires, signs of corrosion and
calcium build up in the tank and on the level probe.
This is particularly important in areas with high
calcium levels and other water quality problems.
Calcium buildup can cause poor steamer perfor-
mance and damage the heating elements!
DIAGRAM 11: T100 CONTROLINSTALLATION
SILICONEALLAROUND BACK OF RIM
