Instructions for Installation and Use
3. Instructions for Installation
Figure 8 - SMS-100, SMS-125, and SMS-145
Figure 9 - SMS-100-3, SMS-125-3, and SMS-145-3
L1
L1
L2
L2
A1
A2
GND
4 -
3 -
2 -
1 -
4 -
3 -
A2
2 -
1 -
A1
1
6
5
4
3
2
4 pole contactor
Overheating limiter
Sensor
Overheating limiter
Sensor
1
6
5
4
3
2
4 -
3 -
A2
2 -
1 -
4 -
3 -
2 -
1 -
A1
4 pole contactor
L1
L2
L3
A1
A2
GND
Overheating limiter
Sensor
Overheating limiter
Sensor
Electrical connections of 240V / 1-Phase heaters
Electrical connections of 208V / 3-Phase heaters
Maintenance Instructions
11/10
Pub. No. 573-B
- 7 -
3. Check for proper wire size, amp size, and proper wiring
(according to diagrams and information) also necessary
copper wiring.
4. Check the placement of stones to make sure they are
loosely spaced around elements, to insure good air flow.
Stones packed too tightly will restrict air flow and reduce
heating capacity.
5. Check for heat loss (around or under door, around ceiling
light or fan – we do not recommend ceiling light and a fan
does not belong in the sauna.
6. Is the room properly insulated?
7. Is the ceiling higher than 7’?
8. After checking all the above, remove rocks and check the
heating elements for holes or burned areas. (Only if heater
has been in use for some time.)
CAUTION: Electrician or service person!
1. BEFORE SERVICING HEATER, CONTROL, OR CON-
TACTOR, TURN POWER OFF AT BREAKER!
2. Open junction box to make sure wires are tightly secured
with no loose connections. Heater wire and all connecting
wires should be copper.
3. Check for burned spots or short in wiring of timer or
thermostat.
Sauna heater's warranty on parts are void if the installer or
electrician fails to follow necessary wiring information
provided or fails to follow code for proper wire size, amper-
age, etc.
3.4.3. Overheating Limiter
Each heater is equipped with an overheating limiter which
is a safety device. If an abnormal heating condition should
occur, the heater will automatically shut off, and it will not
come on again until it cools.
To reset the overheating limiter, locate the reset button
(bottom front on wall models, behind junction box at back
bottom of floor-mounted heaters) and push upward until
contactor kicks in. If the reset button continues to trip, contact
a qualified service person. Be sure that a GFI has not been
installed.
1. Use only clean water on sauna stones. DO NOT use spa
or pool water as it will destroy your heater.
2. Clean water should always be used in sauna buckets and
water should be dumped out after every use. Scour
buckets and dippers occasionally when film collects from
usage. Use plastic bucket liner in bucket to prevent water
leakage.
3. Scrub benches with a soft brush, using soap and water or
a mild disinfectant, when needed — about once a week in
commercial saunas, or depending upon sauna usage. For
sanitation, each bather should sit or lie on a towel (this will
prolong bench life).
4. Remove sauna mat and wash waterproof floor with
disinfectant (e.g. Pine Sol) about once a week or as often
as needed. Hose off Super Dek to clean.
5. To maintain beautiful appearance of Sauna heater, remove
water stains by wiping with a damp cloth occasionally.
6. Our heaters require no special maintenance when properly
installed by a qualified electrical contractor. After 1–2 years
of usage, the rocks may need replacing if they have
crumbled or powdered (depending upon sauna usage).
7. We strongly recommend a floor that can be easily cleaned
(concrete, ceramic tile, or a poured type of flooring). When
this is provided, the sauna can be easily cleaned and kept
in a sanitary condition with little effort. A carpet is NOT
recommended for a sauna! A carpet becomes a perfect
breeding ground for bacteria in the moist conditions of a
