CAC / BDP FOR BYPASS AND FAN POWERED HUMIDIFIERS Owner's Manual - page 5
VI. Periodic Preventative Maintenance
NOTE
: Periodic inspection and preventative maintenance of your total heat-
ing system is important for efficient and safe operation. Your dealer will include
humidifier service during a maintenance inspection.
Your humidifier is equipped with an in-line water strainer and orifice as
shown below. These parts should be inspected and cleaned periodically to
assure continued proper unit performance.
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III. Effect of Water Characteristics
Your humidifier will operate effectively using either hard or mechanically
softened water.
Any type of water (hard, soft, hot, or cold) is acceptable for use with the
drain-type humidifiers. Hot supply water, 140° maximum, is recommended for
all heat pump applications.
The use of hot supply water will also increase the
amount of humidity generated in other applications.
The heat in the water
increases evaporation and the water going to the drain is cold to the touch. For
better performance it is recommended that soft (reduced minerals) or filtered
water be supplied to the humidifier pad. This can help reduce the amount of
scale and mineral deposits that can accumulate on the pad.
IV. Annual Maintenance
For best performance, we recommend that you replace the humidifer pad
in your humidifier annually.
•
Call the installer of your humidifier. This information is often found on your
equipment.
V. Annual Summer Shutdown
FOR THE SUMMER HUMIDIFIER SHUTDOWN, SIMPLY TURN THE
HUMIDISTAT CONTROL TO THE “OFF” SETTING AND CLOSE THE DAMPER IN
THE BYPASS HUMIDIFIER. (TURN DAMPER HANDLE TO “SUMMER” POSITION)
Inspection and Service Instructions
1. Disconnect electrical power to the furnace and shut off
water supply.
2. Disconnect the water line at the inlet fitting.
3. Remove the in-line strainer from inside the inlet fitting by
using a small nail or wire.
4. Flush the in-line strainer to clean it. If it is necessary
to replace the strainer, contact your dealer for a
replacement.
5. Disconnect the water line at the outlet fitting.
6. Inspect plastic feed tube by gently flexing it and looking
for cracks or signs of wear. Replace tube if it is cracked,
brittle, or has been damaged.
7. Remove the orifice from the copper or plastic tube and
make sure this small opening is unplugged.
8. Replace the orifice and reconnect the outlet water line
(Double Wrench To Prevent Leaking And Valve Damage).
9. Replace the inline strainer and reconnect the inlet water line
(Double Wrench To
Prevent Leaking And Valve Damage).
10. Inspect the drain hose to make sure it has a constant downward slope and is
not flattened or blocked. Flex the hose to loosen any mineral deposits or
blockage. Flush it with water under pressure to remove any debris.
11. Turn on water supply and reconnect electrical power to the furnace.
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INLET
COMPRESSION
NUT
INLET
SOLENOID
VALVE
ORIFICE
OUTLET
COMPRESSION
NUT
IN-LINE
STRAINER
90-1053