7
HUMIDI-TECH
®
PIPING
Notes:
• Offset humidifier from spill funnel or floor drain to prevent flash steam from rising into the cabinet.
• Dashed lines indicate provided by installer.
• The water supply inlet is more than 25 mm above the skim/overflow port, eliminating the possibility of
backflow or siphoning from the tank. No additional backflow prevention is required, however, governing
codes prevail.
• Install a union in the water supply line as shown to allow tank removal.
Shock arrester
recommended to
reduce water hammer
DN10 (3/8") connection to water
supply line; water pressure must be
between 175 kPa and 550 kPa;
water conductivity minimum
100 µS/cm
Water supply line
Spill funnel.
Plumb to
floor drain
25 mm
air gap
DN20 (¾") tank
drain, skimmer and
P-trap piping, rated
for 100 °C. If piping
run is over 3 m
increase pipe to
DN32 after P-trap.
Open floor drain.
Refer to governing
codes for drain pipe
size and maximum
temperature requirements.
Cover
Electrical conduit
knockouts provided
top and bottom:
• Combination, with
knockout diameters
of 22.3 mm and
28.6 mm
• Combination, with
knockout diameters
of 28.6 mm and
34.9 mm
Install level
Steam vapor hose
(maximum run 3 m).
May also use pipe or
tubing.
DC-1136
DN20 (¾")
frame drain and
P-trap piping, rated for
100 °C
Two keyholes for wall
mounting, 406 mm
on center
300 mm
50 mm
HUMIDI-TECH (standard water) field piping overview
Frame drain
Unions by installer
VM99-C-0302-M-0302.pdf 7
11/19/2009 9:51:07 AM
