AK INSTALLATION AND SERVICE INSTRUCTIONS
4211-1551 06/18/18 Technical Support: 1-425-951-1120 1-800-363-0251 [email protected] Page
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IMPORTANT!
Regular maintenance will help your steamer work properly for a long time. Check for leaks,
loose or damaged wires, signs of corrosion and calcium build up in the tank on the level probe.
SECTION 3: PLUMBING INSTRUCTIONS
All plumbing shall be installed by a licensed plumber and conform with local & national codes.
Materials Needed:
3/8NPT, 1/2NPT and 3/4NPT unions: recommended to allow easy disconnect of steamer for servicing
3/8" copper pipe and 3/8” male NPT adapter for the water supply to the generator.
3/8" water supply shut-off valve.
3/8" supply valve housing and filter (optional depending on local water conditions).
1/2" copper pipe and (2) 1/2" male NPT adapters for the steam line between the generator and the steam room
outlet.
3/4" copper pipe and 3/4" male NPT adapter for the tank drain.
3/4" copper pipe, fittings, and a union for the Pressure Relief Safety Valve drain.
Tube 100% silicone caulk.
Pipe compound suitable for drinking water use at more than 212°F (100°C).
1. INSTALL WATER LINE
Connect a cold water line to the generators water valve. The valve input is 3/8” NPT. A
shut-off valve should be placed in the line for each generator to allow easier servicing later, if needed, and for
emergency shut-off. Make sure the shut-off is open, providing water to the generator before first turning the on.
IMPORTANT
Water pressure required: 20-100 psi (138-690 kPa)
If the generator is mounted in a place difficult for the home owner to access, the water supply
shut-off valve should be located where it can be quickly accessed in an emergency.
Do not use a saddle valve or saddle fitting for the water shut-off valve.
Flush water supply line before final hookup.
2. INSTALL STEAM LINE
a)
At the generator:
Install a 1/2" male NPT sweat adapter directly into the tank. Install a 1/2" union in the steam
line to allow easy disconnection for later servicing.
Note
:
There must be no valves, shut offs or restrictions in
the steam line!
b) Run the 1/2" copper steam line from the generator to the steam room. Refer to SECTION 1: MOUNTING THE
STEAM GENERATOR and Diagrams 3a and 3b.
The steam line must slope to allow condensation to drain into the tank or room.
There must be no dips in the steam line. Low areas may collect condensation and cause faulty operation or
cause hot water to spit into the room.
c) The steam line should enter the steam room 18” (460 mm) above the floor or at least 12” (305 mm) above a tub
rim or ledge. The steam line outlet should be at least 6” (150 mm) from other steam heads to either side and
12” (305 mm) from walls or other surfaces to either side. See Diagrams 4, 5 and 6.
