Annual Maintenance
For best performance, you should replace the humidifier pad in your
humidifier at least annually.
• Call your AlliedAir dealer for preventative maintenance and
replacement components.
Annual Summer Shutdown
For the summer humidifier shutdown, simply turn the humidifier con-
trol to the “OFF” setting (all humidifier models) and close the damper
(Models CCWB3-12, CCWB3-12K, CCWB3-12A, CCWB3-12AK,
CCWB3-17, CCWB3-17K, CCWB3-17A and CCWB3-17AK).
Dealer Instructions for Preventative Maintenance
NOTE
: Annual inspection and preventative maintenance of your total
heating system is important for efficient and safe operation. Call your
AlliedAir dealer for humidifier service and maintenance inspection.
Your humidifier is equipped with an in-line water strainer and orifice
as shown below. These parts should be inspected and cleaned peri-
odically to assure continued proper humidifier performance. Inspect
more often if seeing “white dust”.
I. Water Line Inspection and Service Instructions
II. Required Maintenance
(Humidifier Models
CCWB3-12, CCWB3-12K, CCWB3-12A, CCWB3-12AK,
CCWB3-17, CCWB3-17K, CCWB3-17A & CCWB3-17AK)
1. Disconnect main power to furnace.
2. Note Humidifier Control setting and turn dial to the “OFF” position.
3. Turn off water supply. Turn the integral bypass damper (3) to the
SUMMER position.
4. Press the tabs in the latches on the top and bottom of front cover
(1) and pull cover off base with both hands. Set aside.
5. Carefully pull the plastic feed tube (2) out of the distribution tray
(5) at the top of the evaporative assembly (4). Pull this assembly
out by grasping at top and tipping out.
6. Unsnap the distribution tray (5) from the scale control insert (8).
Lightly scrape out or brush off any mineral deposits, being care-
ful not to stretch or loosen the synthetic fabric liner. Soaking the
tray in vinegar or a lime-removing agent is helpful when trying to
remove stubborn mineral deposits.
7. Slide the Humidifier Pad (7) out from the scale control insert (8).
Clean the scale control insert of mineral deposits. Replace the
Humidifier Pad annually or if performance drops (Catalog No.
CC130 for Models CCWB3-12, CCWB3-12K, CCWB3-12A and
CCWB3-12AK, and Catalog No. CC131 for Models CCWB3-17,
CCWB3-17K, CCWB3-17A and CCWB3-17AK). Slide the Humidifier
Pad back into the scale control insert with the colored spot up and
snap the distribution tray (5) back into place.
8. Inspect the plastic feed tube (2) by gently flexing it and looking for
cracks or signs of wear. Replace tube if it is cracked, brittle, or
has been damaged.
9. Reinstall the evaporative assembly (4) into the humidifier by fitting its
drain into the round receptacle at the base of the humidifier. Push the
assembly in at the top until it snaps into place. Push the end of the
feed tube (2) back firmly into the distribution tray and replace the
front cover (1).
4
1. Disconnect electrical power to the
furnace and shut off water supply.
2. Disconnect the water line at the
inlet compression nut.
3. Remove the in-line strainer from
inside the inlet side of the valve by
using a small nail or wire.
4. Flush the in-line strainer clean or
replace with a new strainer,
Service Department, Catalog No.
22N14.
5. Reconnect the inlet water line.
Use 7/16” wrench to hold valve
while tightenting compression
nut with 1/2” wrench to prevent
damage to valve bracket and to
ensure watertight connection.
6. Disconnect the water feed tube at the outlet compression nut.
7. Inspect the water 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.
8. Remove the orifice from the copper or plastic water feed tube and
make sure this small opening is unplugged.
9. Replace the orifice and reconnect the water feed tube.
Use 7/16”
wrench to hold valve while tightenting compression nut
with 1/2” wrench to prevent damage to valve bracket and to
ensure watertight connection.
10. Remove the drain line from the bottom of the humidifier. If applicable,
flex it to loosen any mineral deposits or blockages. Flush the drain
line with water under pressure to clear it of any debris, and slip it
back onto the drain fitting. If drain line does not clean properly,
replace it. Inspect the drain line to make sure it has a constant
downward slope and is not flattened or blocked.
11. Turn on water supply and reconnect electrical power to the furnace.
9
6
3
7
8
5
2
1
4
INLET
COMPRESSION
NUT
INLET
SOLENOID
VALVE
ORIFICE
OUTLET
COMPRESSION
NUT
IN-LINE
STRAINER
WATER
FEED TUBE
90-1053
1. Front Cover
2. Feed Tube
3. Integral Bypass Damper
4. Evaporative Assembly
5. Distribution Tray
6. “V” Notches
7. Humidifier Pad
8. Scale Control
Insert
9. Drain Line
90-1422
WARNING
Electrical Shock Hazard
Can cause injury or death.
Disconnect all electrical power supplies before
servicing.
Shut off water supply before disconnecting or
tapping into any water supply line.
