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6"

2 1/2"

1-2"

26"

1"

52"

4"

Note:

 Control panel and power unit must be installed in a dry 

place; away from spa, pool or shower; not outdoors. A 
receptacle shall not be installed inside the sauna room. 

Load center shall be supplied by 
electrical contractor during field 
wiring, and shall be Cutler Hammer 
model CH4F or equivalent. Load 
center can be located in other 
serviceable places, as well as 
location shown on this diagram.

Load Center

Control Panel

Power Unit

Wire to room light #14 AWG 90°C

Sensor

Fence

Room Light

Seal tight 
flex conduit to 
connect use 1" 
90° connector

6'-5" Min. Height

7'-0" Normal Height

8'-0" Max. Height

3. Instructions for Installation

Figure 2

     Furnished with sauna heater. The metal “CAUTION” sign 

should be fastened to wall, close to heater, in a visible 
place. The metal “WARNING” sign should be fastened 
outside, to the sauna room door.

3.1. Prior to Installation

Prior to installing the heater, study the instructions for 

installation, as well as checking the following points:

  Is the output and type of the heater suitable for the 

sauna room?

The cubic volumes given in table 1 should be followed.

  Are there a sufficient number of high quality sauna 

stones?

  Is the supply voltage suitable for the heater?

  The location of the heater fulfils the minimum require-

ments concerning safety distances given in figures 2–6 

and table 1.

It is absolutely necessary to ensure that the installation is 
carried out according to these values. Neglecting them 
can cause a risk of fire.

  Only one electrical heater may be installed in the sauna 

room.

  The heater should be installed so that the warning texts 

on the cover of the junction box can also be read without 
difficulty after the installation.

  SMS heaters have not been approved to be installed in 

a recess in the wall or floor.

3.2. Installation of Control Unit and Sensor

Detailed instructions for the installation of both the unit and 

the sensor are delivered with the control unit.

3.3. Installation of Heater

The heater may only be connected to the electrical 

network in accordance with the current regulations by a 
licensed electrician.

The wiring diagrams are included in the control unit’s 

installation instruction.

Further instructions concerning exceptional installations 

can be obtained from local electrical authorities.

1. Remove heater from carton and place in proper location in 

sauna room. Observe proper clearances as per figures 
2–6 and table 1. After final hookup, electrical contractor 
should secure heater to floor with at least two screws or 
bolts.

2. See applicable wiring diagram for heater model (figures 

8–9, see control unit manual for detailed instructions how 
to connect the heater and the control unit). Heater must be 
permanently installed (no pigtails or plugs allowed) and 
wiring must be done by a licensed electrician, who must 
follow wiring diagram provided and adhere to local codes. 
Use proper A.W.G. rated wire size and use copper wire 
suitable for 90 °C within sauna walls. Use grounding 
terminals provided in sauna heater and control unit to 
properly ground the equipment as per NEC and local 
codes.

3. Inside the heater box there are two signs. Please place the 

metal ”CAUTION” sign on the interior wall of the sauna 
room directly above the heater in a visible place. Place the 
metal ”WARNING” sign outside, on the door of the sauna 

Instructions for Installation and Use

11/10

Pub. No. 573-B

- 4 -

Summary of Contents for SMS-100

Page 1: ...of the Sauna Stones The sauna stone for an electric heater should be 2 4 in diameter The heater stones should be solid blocks of stone specially intended for use in the heater Neither light porous cer...

Page 2: ...on the heated stones to reach a suitable level of humidity in the sauna The humidity of the air in the sauna room is controlled by the amount of water thrown on the stones A correct level of humidity...

Page 3: ...need to exit the room C Unawareness of impending hazard D Fetal damage in pregnant women E Physical inability to exit the room F Unconsciousness WARNING the use of alcohol drugs or medication is capab...

Page 4: ...warning texts on the cover of the junction box can also be read without difficulty after the installation SMS heaters have not been approved to be installed in a recess in the wall or floor 3 2 Insta...

Page 5: ...f this manual 3 3 1 Single Phase Heater Wiring and Hookup SMS 100 SMS 125 SMS 145 Refer to table 2 for proper wire size and amperage See figures 2 6 for required clearances Use copper wire from breake...

Page 6: ...with built in control 2 Check circuit breaker in contactor to be sure that it has not been shorted out 3 Make sure that the current from the control unit to the heater has been switched on 4 Check tha...

Page 7: ...verheating 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 com...

Page 8: ...manufacturer s agent after the defective parts are returned to Steamist The replacement of parts under warranty does not extend the warranty period beyond the original one year period In addition Ste...

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