Electrical Wiring in the Home/reinstallation of Viking sauna


control panel wire box
control panel wire box  

wire diagram heater
wire diagram heater  
Viking Sauna……BTR 4……serial # 0790857330
Control Panel 300-SE 240 V 2 contactor circuit
Trying to located complete wiring diagram
Electrician needs to know if the elements are 14 amps each
or 14 amps total ( combined )??
Why is wire coming down to contractor #10 while the other
wires are #12 and #14 ??
Connection Box in sauna…contractor on left has only 2 wires ??

According to the name plate it should be 14 amps total.

The wires going to the contactor have to travel a great distance, plus they carry the whole load of your sauna. This is why they are larger.

Two wires because you have single phase at your home.

You have a one hour timer controlling the first contactor, and a thermostat controlling the second contactor.

So your power comes in at the first contactor and sits there waiting for the timer to be turned on. Once  the timer is turned on the power moves to the second contactor and sits there waiting for the thermostat to call for heat.
Once the thermostat calls for heat it closes the second contactor and power is sent to your heaters.

Both contactors are controlled by 110 volts (one leg of your 220 and the neutral).  
About Electrical Wiring in the Home
This site answers questions related to home electrical wiring, home wiring, general electrical help,and other electrical questions related to aleternating current (AC). You can find help on the National Electical Code, home electrical issues, wiring electrical outlets, installing lighting, electrical grounding, and general electrical help for do-it-yourself projects not require an electrician. If you do not see your home electrical wiring question answered in this area then please ask your electrical wiring question here

Electrical Wiring in the Home

All Answers

Answers by Expert:

Ask Experts


Greg Hughes


Troubleshooting electrical including appliances and HVAC.


34 years of experience.

Both college and tech schools in this field.

©2017 About.com. All rights reserved.