HM700A1000
33-00162—01 2
PLUMBING
Water Supply Requirements
Honeywell does not accept responsibility for installation
code violations. All drain and fill line connections should
be installed in accordance with local plumbing codes by a
licensed plumber.
1. Use 1/2 in. OD copper or plastic supply lines within
4 feet of the humidifier.
2. Install water shut off valve and coupler to facilitate
servicing.
3. Do not use reverse osmosis or de-ionized water.
4. Flush supply lines with fresh clean water after
installing, prior to operating the humidifier.
5. Do not solder/braze copper lines while connected to
the humidifier or the fill solenoid can melt or deform.
6. Water conditions must meet the following criteria for
optimal operation, consult factory for water
conditions outside of this range.
a. Pressure: 30 to 100 PSIG
b. Conductivity: 150-1200 Microsiemens
c. Temperature: 34-68 °F/1-20 °C
d. Hardness 0-10 GPG and Silica 0-4 PPM
–OR–
Hardness 0-3 GPG and Silica 0-14 PPM
Drain Line Requirements
1. Use 7/8 in. copper. Do not use PVC.
2. Install an air gap within three feet of the humidifier.
A copper reducer from 2-1/2 to 7/8 in. is ideal. Do
not allow the drain hose to bottom out in the funnel
cup.
3. The drain line should not end in a sink used
frequently by personnel, or where plumbing codes
prohibit it. Route to a floor drain or equivalent for
safety reasons.
4. Ensure drain line is adequately sloped and sized to
provide free and easy draining.
Fig. 2. Plumbing.
1/2 IN. (30 MM) OD
ALWAYS INSTALL A
WATER SHUT-OFF VALVE.
USE 1/4 IN. COMPRESSION
FITTING (INCLUDED) TO
CONNECT WATER SUPPLY
LINE TO UNIT (LDPE PLASTIC
OR COPPER).
USE 1/2 IN. OD COPPER TO
WITHIN 4 FT (1.2 M) OF HUMIDIFIER.
M35760
1
FILL AND DRAIN LINES CAN ALSO BE
ROUTED THROUGH OPENING IN BACK
OF CABINET.
1
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