Electrical Connections; Electric Heater Insulation Resistance; Resetting The Overheat Protector - Harvia Spirit Owner's/Operator's Manual

Electrical connections

The heater may only be connected to the electrical network in accordance with the current
regulations by an authorised, professional electrician.
• > Image 8. Electrical Connections
• The wiring diagrams are included in the control unit's installation instruction.
• Interconnecting cord conductor from Control Unit Assembly to Electric Sauna Heater to have minimum 8
AWG. Listed strain relief to be installed on Electric Sauna Heater.
• 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 > Image 2.
Safety distances
2. See applicable wiring diagram for heater model (See control unit manual for detailed instructions how to connect
the heater and the control unit). Heater must be permanently installed by using seal tight conduit between the
heater and the wall of the sauna room (pigtails or plugs are not allowed in the sauna room). Wiring must be done
EN
by a licensed electrician, who must follow wiring diagram provided and adhere to local codes. Use proper AWG rat-
ed wire size and use copper wire suitable for 194 °F (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 (screws and nails included). Place the metal "WARNING" sign
outside, on the door of the sauna room. "MAINTENANCE INSTRUCTIONS" are at the end of this manual.

Electric Heater Insulation Resistance

When performing the final inspection of the electrical installations, a "leakage" may be detected when measuring the
heater's insulation resistance. The reason for this is that the insulating material of the heating elements has absorbed
moisture from the air (storage, transport). After operating the heater for a few times, the moisture will be removed from
the heating elements.
Do not connect the power feed for the heater through the RCD (residual current device)/GFI (Ground
Fault Interrupter)!

Resetting the Overheat Protector

If the temperature of the sauna room becomes dangerously high, the overheat protector will permanently cut off the
supply of the heater. The overheating protectors can be reset after the heater has cooled down. Please check that
the stones are piled properly and the sensor is installed according the installation instructions. See the operating
Instructions of the selected control unit model.
The reason for overheating must be resolved before resetting the overheat protector!
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