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page 8
AK and 3K Series Installation and Service Instructions
4211-143-A 02-19-10
The pressure relief valve must be
installed in such a fashion that the
risk of scalding is reduced to a
minimum. Draining the pressure
relief valve into the steam room may
present a scald hazard.
Boiling water may be discharged from
the drain. Proper precaution should
be taken too insure safety.
Draining the tank into the steam room
may present a scald hazard and/or
damage materials used to construct
the steam room.
Electrical shock hazard - Disconnect
all electrical power before servicing
the generator. All wiring should be
installed by a licensed electrical
contractor in accordance with local
and national codes.
The generator is designed for hookup
with copper wire only.
1. 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 for the K30, K60 or R30K control but with a built
in temperature sensor, the KT60 must be mounted
inside the steam room, also see #6 optional second-
ary generator control. 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. Optional for tile rooms, a 2 gang rough-in box
may be installed at the desired control mounting
location. A mounting plate with proper diameter hole
is included with the control kit. Tile up to the hole in
mounting plate as indicated in diagram 13 or 14.
2. TEMPERATURE SENSOR CABLE ROUGH-IN
(REQUIRED FOR K60 OR K30 ONLY)
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 the generator as indicated by the Elec-
trical Information Chart on page 8. Use correct size
and type to meet electrical codes. Leave 4 feet of
slack wire at generator location for finish hookup.
Connect the generator to a dedicated circuit breaker.
A GFI device is not required by UL. One may be
installed if required by local codes or the owner. A GFI
device will tend to nuisance trip due to heater element
aging.
4. ELECTRICAL FINISH
Materials (locally available):
- 3/4" Strain relief for supply wire.
A. Route the copper supply wire with appropriate
strain relief through the hole marked POWER ENTRY.
B. Connect the supply wires to terminals marked L1
and L2.
C. Connect the ground to the ground lug (green
screw).
5. INSTALL GENERATOR CONTROL (K30,K60,KT60)
The low voltage controls can be mounted directly to
a finished wall either inside or outside the steam
room with the exception of the KT60 control which
must be mounted inside the steam room. Using a 2"
hole saw, drill a hole in the finished wall where the
control is to be mounted (the control cable should
already be roughed-in to this location). With the
decorative cover removed from the control switch
assembly, insert the two control mounting screws
through the control housing (may need to punch
through skinned holes) and screw 1/4" into the mount-
ing bracket. Locate the control cable and plug it into
the back of the control housing. See diagram 8. Run
a bead of 100% silicon caulk in-between the 2 ridges
around the perimeter on the back of the control
housing. See diagram 9. Insert the mounting bracket
into the wall cavity by first pushing with the control
housing and then with a hard flat surface on the
control housing mounting screws which extend out
through the control face. Once the mounting bracket
has been inserted into the finished wall, center the
control and tighten the mounting screws to draw the
control housing securely against the finished wall.
Do not over tighten the mounting screws. Install the
decorative cover plate by sliding the top of the cover
plate over the tab on the top of the control housing
and pushing on the bottom of the cover plate to
complete the snap fit. See diagram 11. Route the
generator end of the control cable through the gen-
erator hole marked CONTROL WIRING ENTRY using
the strain relief provided. Plug the control cable into
the connector on the printed circuit board assembly.
Insert cable into connector S30 if a K30 control is
used or connector S60A if a K60 or KT60 control is
used. See diagram 10.
5A. INSTALL GENERATOR CONTROL (R30K)
The low voltage control can be mounted directly to a
finished wall either inside or outside the steam room.
Using a 1-3/4" hole saw, drill 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, pull it out through the
1-3/4" hole and plug the connector on the back of the
control housing. Run a bead of 100% silicone caulk
around the perimeter on the back of the control
housing. See diagram 13. Insert the control into the
wall cavity.
WARNING
SECTION 6: WIRING INSTRUCTIONS
SEE ELEC. INFO. CHART AND WIRING DIAGRAM
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