8
HUMIDI-TECH
®
PIPING
HUMIDI-TECH DI (deionized/reverse osmosis water) field piping overview
DN10 (3/8") connection to water
supply line; water pressure must
be between 175 kPa and 550 kPa;
water chloride content must be less
than 3 ppm; first 1 m of supply line
must be rated for 100 °C
Water supply line
Spill funnel.
Plumb to
floor drain
25 mm
air gap
DN20 (¾") tank drain 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
DC-1139
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
Frame drain
Strainer,
by installer
If water piping to humidifier is non-metallic,
we recommend a 50 mm water seal in the
supply line to isolate steam during DI/RO
water system maintenance
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 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.
Unions by
installer
Steam vapor hose
(maximum run 3 m).
May also use pipe or
tubing.
VM99-C-0302-M-0302.pdf 8
11/19/2009 9:51:08 AM
