Installation Guide
4 Electrical Wiring
4'
5'
8'
Installation note
We do not recommend a
ceiling height exceeding
10 feet.
Lowering ceiling
height to 8 feet helps
create a more efficient
steam room.
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800.776.0711
If you are installing the unit or thinking of adding one on your next project,
you will need to make sure the unit is sized properly.
Calculate the shower area
(Length x Width x Height = Cubic Feet)
and confirm the ceiling height does not exceed 8 feet.
The set of numbers in the generator model number
represents the maximum capacity.
Example: Generator model PRO-240 will be sufficient
up to 240 cubic feet (with a ceiling not exceeding
8 feet in height). Up-size 1 Unit size for every foot
over 8 foot to a maximum of 10 foot.
Model number can be found on the box or generator.
ThermaSol’s generators can be placed up to 50 feet from the
shower; in an attic, closet or below a sink are ideal locations.
Make sure the walls, ceiling and floor materials are suitable
foruse with steam.
o Wire cutters or wire strippers
o Adjustable wrench
o Screwdriver (Phillips and regular)
o Solder and flux
o 1-1/16" inch masonry drill bit
o 2-1/2" inch hole saw for ThermaSol
NoTouch steamhead rough-in
o Drill motor
o Propane torch
o Other tools as required
Read warnings on page 2. For illustrative purposes only. Consult with qualified professional for steam room construction details.
MODEL INPUT VOLTAGE KW RATING AMPS PHASE WIRE BREAKER ELECTRICAL MAX. ROOM SIZE
PRO-84 208-240VAC 6.0 28 1 10 30 NEMA 6-30P 84 CU.FT.
PRO-140 208-240VAC 8.0 37 1 8 40 NEMA 6-50P 140 CU.FT.
PRO-240 208-240VAC 10 46 1 8 50 NEMA 6-50P 240 CU.FT.
PRO-395 208-240VAC 12 55 1 6 60 Hardwire 395 CU.FT.
PRO-500 208-240VAC 15 69 1 4 90 Hardwire 500 CU.FT.
PRO-650 208-240VAC 20 92 1 0 100 Hardwire 650 CU.FT.
PRO-850 208-240VAC 24 110 1 0 120 Hardwire 850 CU.FT.
The size of the shower will determine the size
of the generator. The size of the generator will
determine electrical requirements.
o All the electrical wiring must be done per National/Local Electrical Codes.
o Run 240V Power source to the generator.
o Use copper wire only.
o Wire sizes recommended by NEC (2002 Version). Minimum wire
temperature rating 90°C. Type THHN.
o Each generator should be wired to their own separate breaker
o Turn off all electricity to the working area at the main breaker panel!
o Leave power OFF during installation process.
ThermaSol requires that a licensed electrician perform all electrical work.
PRO Series Generator Installation Instructions
3 Sizing or Double Checking the Unit Specified