10009397 7.11
B2205474A
10. Remove the drain line (9) from the bottom of the humidifier. If
applicable, flex it to loosen any mineral deposits or blockage.
Then flush it with water under pressure. If it does not properly
clear, replace it. Slip drain line back onto the drain fitting. Make
sure the drain line has a constant downward slope and is not flat-
tened or blocked.
11. Turn on the water supply. Return integral bypass damper (3) to
appropriate position.
12. Check system operation:
Manual Humidifier Control:
With the furnace blower operating
and the furnace calling for heat, turn up Control and check sys-
tem operation.
Automatic Humidifier Control:
(Automatic or Manual mode) Check
system operation and reset Change Humidifier Pad indicator by set-
ting the knob to “Test/Reset”. With furnace blower operating and
furnace calling for heat, humidifier will operate for one minute. DO
NOT LEAVE IN TEST MODE AS HUMIDIFIER WILL NOT OPERATE.
13. Set Humidifier Control to its original position.
III. Required Maintenance
(Humidifier Models CCWP3-18 & CCWP3-18A)
1. Disconnect main power to furnace.
2. Note humidifier control setting and turn humidifier control to the
“OFF” position.
3. Disconnect electrical power and turn off water supply.
4. Unlatch humidifier cover assembly (1) from base assembly (2) at
the bottom of the cover, lift, and set aside.
5. Pull out the evaporative assembly (3) by grasping at the top and
tipping out.
6. Remove the distribution tray (4) from the evaporative assembly (3)
by unsnapping the black plastic ends of the scale control insert (7),
from the tabs at the end of the tray. Follow the instructions below
depending upon the type of distribution tray in your humidifier:
For trays with a synthetic fabric liner:
Lightly scrape out or brush
off any mineral deposits, being careful not to stretch or loosen the
synthetic fabric liner. Soaking the tray in vinegar or a lime-remov-
ing agent is helpful when trying to remove stubborn mineral
deposits.
For trays with granular coating:
Do not scrape off the granular
coating, but lightly scrape any calcium deposits out of the “V”
notches (5). This textured surface helps ensure even water flow
for maximum performance. If the granular coating has been
removed, place several drops of liquid dishwashing soap on the
distribution tray. This will only need to be done if there is no gran-
ular coating.
7. Slide the humidifier pad (6) out from the plastic scale control
insert (7). Clean the insert frame by twisting and flexing it to
loosen the calcium deposits or use a putty knife. Replace humid-
ifier pad annually or if performance of the humidifier drops.
(Catalog No. CC131) Insert pad with the colored spot up and snap
the distribution tray (4) back into place.
8. Reinstall the evaporative assembly (3) into the base assembly (2).
Push the evaporative assembly (3) in at the top between the
retaining ribs that hold the assembly in place in a vertical position.
9. Remove the drain line (8) from the bottom of the humidifier. If
applicable, flex it to loosen any mineral deposits or blockage.
Then flush it with water under pressure. If it does not clear,
replace it. Slip drain line back onto the drain fitting. Make sure the
drain line has a constant downward slope and is not flattened or
blocked.
10. Reinstall cover assembly (1) by hooking at the top of base assem-
bly (2) and latching at the bottom.
11. Reconnect electrical power (9) and turn on water supply.
12. Check system operation:
Manual Humidifier Control:
With the furnace blower operating
and the furnace calling for heat, turn up humidifier control and
check system operation.
Automatic Humidifier Control:
(Automatic or Manual mode)
Check system operation and reset Change Humidifier Pad indica-
tor by setting the knob to “Test/Reset”. With furnace blower
operating and furnace calling for heat, humidifier will operate for
one minute. DO NOT LEAVE IN TEST MODE AS HUMIDIFIER WILL
NOT OPERATE.
13. Set Humidifier Control to its original position.
NOTE: The motor is permanently lubricated and does not need to be
oiled.
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.
5
5
4
7
2
6
8
1
3
9
1. Humidifier Cover Assembly
2. Base Assembly
3. Evaporative Assembly
4. Distribution Tray
5. ”V” Notches
6. Humidifier Pad
7. Scale Control Insert
8. Drain Line
9. Power Cord
90-1075
