Owner`s manual

SYSTEM INSTALLATION AND SERVICE
AT AND 3T STEAMERS
4211-103 10-10-11
Page 6
2. INSTALL THE STEAM LINE (continued)
In the steam room: Drill/prepare a 1-3/8” dia. hole for the steam line entry. Center the 1/2” copper steam
pipe in the 1-3/8” hole. See diagrams 7and 8.
Terminate the steam line with a 1/2 NPT male adaptor. Stub the fi nished line out into the room 3/8” from
the fi nished surface.
Secure the steam line to a structural member.
3. INSTALL THE STEAM HEAD See diagrams 7, 8 and 9
Install the steam head insulator
Fill in the gap between the steam pipe and the fi nished wall using 100% silicone caulk.
Apply silicone to the wall side of the steam head insulator and screw the insulator onto the steam line
threads, hand tight, until it is fl ush against the fi nished wall with its opening facing down. If hand tight
does not result in the opening pointing down, use Tefl on tape on the steam line’s thread to adjust the fi t.
Mount the steam head
Slide the steam head onto the insulator until it rests fi rmly against the fi nished wall. Tighten the hex head
screw in the bottom of the steam head to secure it in place using the hex wrench, provided.
The steam head should be level with its fragrance reservoir at the top.
5. INSTALL THE AUTOMATIC DRAIN VALVE AND DRAIN LINE See examples in diagram 10.
The AT and 3T generators are provided with an electric drain valve to provide automatic draining and
rinsing of the steam tank after each steam bath. This can greatly extend the life of the steam generator,
particularly in areas with hard water. This valve must be installed within three feet of its generator.
1. Install the 3” nipple (provided) into the generator’s drain outlet then mount the drain valve to this nipple
with its conduit fi tting pointing away from the generator. Notes: Conduit must be used in order to ground
the valve! The valve may be installed with either end towards the generator; select the orientation which
provides the best routing for the valve’s wiring conduit. No drain line should have more than three (3)
90° bends (elbows or tees) between the generator and its drain valve.
2. Use a 1/2” NPT close nipple to connect a 1/2” NPT Union onto the valve’s outlet.
3. Run a 1/2” drain line from the valve’s union to a suitable drain according to national and local codes.
This is a gravity fl ow drain so all drain lines must be sloped away from the generator towards the drain.
Notes:
Drain lines may be ganged together only AFTER each individual drain valve.
The drain must be constructed of materials capable of withstanding water at 212°F (100°C) and
be constructed according to local and national codes. Water at this temperature will present a
scald hazard!
Do Not run the drain into a shower or steam room or other area where someone may come into
contact with drain water without warning. This may present a scald hazard and may damage the
shower or steam room.
SECTION 4: PLUMBING THE GENERATORS (continued)
DIAGRAM 6: STEAM LINES
WARNING
Do not put a shut-off valve in the steam line!
To reduce the risk of explosion,
do not interconnect steam outlets!
A separate line must be provided
for each steam outlet.
Avoid traps and valleys where water could
collect and cause a steam blockage.
The hot steam must be insulated against
user contact. Install the steam head so as to
avoid potential user contact.
Do not install the steam head near benches
or where condensation will drip on the user
or puddle as this will present a scald hazard.
The pressure relief valve must be installed
in such a manner that the risk of scalding is
reduced to a minimum. Draining the pressure
relief valve into the steam room may
present a scald hazard.
IMPORTANT
The steam pipe entry into the steam
room and the steam head must be
caulked to avoid damage caused
by steam leakage into the wall.
Centering the steam pipe is critical through
walls made of plastic, acrylic, resin, fi berglass,
or similar materials. Allowing the pipe to touch
the materials not rated for 212°F (100°C) or
higher will result in damage to these materials.
If the steam line is in an area where the
temperature will be below 40°F or if the line
is more than 20 feet long, best results can
be obtained by insulating the steam line.