1.
Installation of the Helo DSA
1.1 About the Helo DSA
The purpose of the door switch adapter is to prevent the starting of the sauna heater if there is reason to believe that the
sauna no longer is in a suitable state for heating. Possible reasons are:
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A preset time has been set, but after that the sauna room door has been opened and possible something flamma-
ble has been placed on / or in the vicinity of the heater
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The heater is started remotely without checking the saunaroom first
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The heater is started locally but no check of the sauna room has been made
The door switch adapter is designed to be used with heaters that are operated with control panels. Heaters with built-in con-
trols doesn’t need the door switch adapter
1.2 Installation of the Helo DSA
The door switch adapter is connected in series with the existing control panel sensor so that the sensor cable is routed from
either the control panel, heater or relay box (depending on which control is used) to the door switch adapter and there from
to the sensor in the sauna. The door switch is installed and wired according to the instructions.
The door switch adapter should be installed near the sauna room door because activation of the door switch adapter in-
volves opening and closing the sauna room door. The door switch adapter can be installed both on the surface and re-
cessed in the wall. The door switch adapter is battery-operated so no additional power cabling is necessary.
1.3 Helo DSA User Interface
1. SET-button
Activation /Deactivation of the device
Acknowledgment of error / alarm
Factory reset
2. STATUS-led
Status of the unit
Indication of error
3. HEAT-led
Status (during installation)
Indication of deviation
4. DOOR-led
Status of door switch circuit
Indication of alarm
5. Battery compartment
3V Lithium battery CR123A
Included in shipment
Saved settings are preserved during change
6. Sensor terminal block
Cable from panel / heater / relay box
Cable to sensor in sauna room
7. Door switch terminal block
Cable from the door switch
Use potential free normally closed switch
Installation and User Manual
Helo DSA
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