Sauna Heater Installation
Relay Control Box Installation
The “Relay Control Box” contains the 24 volt Class II transformer and a magnetic contactor.
The Relay Control Box can be surface mounted or flush wall mounted. This box needs to be
mounted in a location that you can access should servicing be required. Note that 3658
mm (12 feet) of 18/4 wire is supplied with this control for connecting the Relay Control Box
to the Wall Control Panel so be sure to keep within this distance.
Caution: Use only a contactor approved for 250,000 cycles
Attention: Utiliser uniquement un contacteur approuvé pour cycles ce fonctionnement
Connect the 18/4 wire to the appropriate connections in the Relay Control Box. If more
than the supplied 18/4 wire is needed for your installation, you can order additional wire
from HOMECRAFT or purchase 18/4 wire locally. Do not splice into the supplied wires if you
are short.
Be sure to connect colored wires consistently between the Relay Control Box and the Wall
Control Panel as per the wiring diagram (See page 8)
Temperature Sensor Installation
Step 1: Attach the Temperature Sensor, with the supplied connectors, to the 3658mm (12
Ft) length of 18/2 wire. If you require a longer distance between the sensor and the Digital
Sauna Control buy a new continuous length of 18/2 wire and attach the sensor to it. Do not
slice into the wire supplied.
Step 2: Be sure to run the 18/2 wire inside the insulated stud space in the sauna wall.
Step 3: Be sure to leave a little slack in the 18/2 wire in the stud wall. Strip about 152mm
(6'') from the outer casing of the 18/2 pair, leaving the protective casing on the individual
leads. This will make it easier to attach the 18/2 wires to the sensor leads, and gives more
flexibility when pushing any excess wire back into the wall.
Step 4: The sensor wire should come out of the wall into the sauna room through a 5/8''
diameter hole so the sensor is positioned over the heater according to the heater
instructions (see figure 1)
Step 5: Do not hide or bury the sensor behind a cover other than the one supplied by
Homecraft. Incorrect installation of the sensor will negatively impact the heater operation,
cause nuisance high limit tripping (safety device in the heater), and compromise personal
and fire safety.
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General