Installation Guide

Install the Water Supply and Steam Line (cont.)
Connect the water supply line to the steam generator.
Turn on the water supply, and fill the steam generator with water. Check for leaks.
Check that the water drain valve on the generator is closed.
NOTICE: Steam generators are equipped with an automatic shut-off. The water will stop after the unit is
full. If the water flows out of the steam outlet, shut off the water and consult the ″Troubleshooting″ or
contact the Customer Care Center using the information located on the back of this document.
If the water supply line exceeds 10’ (3 m) or is exposed to cold areas, insulate the piping with
appropriate insulation.
Install the Steam Line
WARNING: Risk of scalding. Do not locate the steam head near a seat or bench. Scalding may
occur upon contact with the steam head.
NOTICE: Never run the steam line down, then up. Running the steam line down and then up will create
a steam trap, blocking the flow of steam. The steam line should run up to the steam head from the steam
generator, at a pitch of 3/8″ (10 mm) to 1/2″ (13 mm) per 12″ (305 mm) of pipe.
NOTICE: Provide clearance between the back wall and the elbow leading into the steam housing. The
elbow must not contact any wall material.
NOTICE: Provide clearance between the steam line and surrounding surfaces.
NOTICE: Do not apply excessive heat to the generator connections when you solder connections. Do not
apply flux or acids directly to the steam generator, as damage to the seals, plastic components, and trim
finish may result. Do not apply petroleum-based lubricants to the steam generator components, as damage
may result.
NOTE: For all the threaded connections, use thread sealant tape or pipe sealant. Do not overtighten the
fittings.
NOTE: Use 1/2″ copper tube for the steam line.
NOTE: When possible, use 45° elbows. Performance will be increased when 45° elbows are used.
NOTE: Always install a union fitting (supplied with the steam generator) as close as possible to the steam
generator.
Add blocking behind the desired steam head location.
Install and secure a 1/2″ NPT elbow to the blocking directly behind the desired steam head
location.
Install a temporary 1/2″ copper nipple that extends through the finished wall.
Model Product Information
Model K-5525-NA K-5526-NA K-5529-NA K-5531-NA K-5539-NA K-5543-NA
Weight 29 lb (13.2
kg)
29 lb (13.2
kg)
29 lb (13.2
kg)
29 lb (13.2
kg)
48 lb (21.8
kg)
48 lb (21.8
kg)
Water Supply 3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
Steam Line 1/2″ copper
line
1/2″ copper
line
1/2″ copper
line
1/2″ copper
line
1/2″ copper
line
1/2″ copper
line
Pressure Relief
Valve (supplied)
3/4″ NPT
female thread
3/4″ NPT
female thread
3/4″ NPT
female thread
3/4″ NPT
female thread
3/4″ NPT
female thread
3/4″ NPT
female thread
Drain Line
Valve
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
3/8″ copper
line
1230487-2-C 12 Kohler Co.