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Step 7—Make Water Connection
If garden hose is not used for water supply:
1. Mount saddle valve on water line according to instructions
supplied with valve.
2. Run 1/4-in. diameter (water line grade) tubing from saddle
valve to adapter on solenoid valve and tighten compression
fittings.
IMPORTANT: If water pressure is higher than normal (60 psi),
use noise suppression disk included in parts bag. (Read water noise
reducer note located inside package for instructions.) For normal
operation, saddle valve need only be opened 1 full turn to meet
performance requirements.
3. Open valve and check installation for leaks.
NOTE: Saddle valve is self piercing on copper lines; 1/4-in. hole
must be drilled in steel or iron pipes. Use only a grounded drill or
a hand drill to avoid shock hazard. Turn off water and drain the
pipe prior to drilling 1/4-in. hole.
Step 8—Install Humidistat and Complete Wiring
1. Mount humidistat on inside wall, or return-air duct in accor-
dance with section INSTALLATION OF HUMIDISTAT on
page 10.
2. Wire brown low voltage leads to furnace control board, or
install a field-supplied step-down transformer 115vac/24vac
60Hz to power solenoid valve. (See Fig. 4.) Make sure bridge
rectifier is attached to coil of solenoid valve.
NOTE: Wiring must comply with National Electrical Code and
any local codes or ordinances that may apply.
Step 9—Start-Up
1. Open saddle valve to permit water flow to the solenoid.
2. Check all connections for water leaks.
3. Set thermostat to call for heat. Set humidistat for highest
humidity setting making sure contacts are closed. After a few
minutes of operation, check the drain connection for leaks and
to see if water is flowing through humidifier.
4. Reverse thermostat and humidistat settings to insure proper
shutdown.
5. Reset thermostat to normal setting. Reset humidistat to rec-
ommended setting.
Step 10—Final Steps
Attach humidifier maintenance instruction sticker to a visible
location.
1. Inform homeowner of proper operation, maintenance, and
humidistat setting.
a. If unit is installed during cooling season, close bypass
damper, set humidistat for summer setting (OFF or lowest
setting).
b. If installed during heating season, set unit for normal
operation.
INSTALLATION OF HUMCCLFP1025-A--
FAN POWERED HUMIDIFIER
Carrier’s HUMCCLFP1025-A-- fan powered humidifier can only
be installed on the supply plenum of a forced-air system. This unit
requires an external 115-vac (fused) plug-in receptacle near the
equipment for proper operation.
It is recommended to install the humidifier where it can be easily
serviced. Pad access can be easily obtained from either the top or
bottom of unit. Always install humidifier downstream of an
electronic air cleaner.
Step 1—Inspect Package and Check Equipment
Inspect the contents of packaged humidifier. File claim with
shipping company prior to installation if shipment is damaged or
incomplete.
The package should contain:
1. Humidifier and media assembly
2. Humidistat
3. Template
4. Owner’s Manual
5. Warranty Certificate
6. Solenoid valve
7. Saddle valve assembly with adapter
8. Four sheet metal screws
9. Foam tape
10. Water noise reducer (use for water pressure over 60 psi)
11. Worm clamp for field-supplied drain tube
12. Humidifier maintenance instruction sticker
13. Carrier logo label
Step 2—Select Location (See Fig. 5.)
Humidifier must be installed on supply plenum only. If furnace has
air conditioning coil, be sure humidifier does not interfere with coil
ends.
→ Fig. 4—Installation of Humidistat
on Bypass-Type Humidifier
A98365
HUMIDIFIER HUMIDISTAT
24VAC
FURNACE
BROWN
BROWN
HUMIDIFIER HUMIDISTAT
115V
FIELD
WIRING
TRANSFORMER
(FIELD SUPPLIED)
RED
BLU
24V
→ Fig. 5—Installation of HUMCCLFP1025-A--
Fan-Type Humidifier
A98366
VERTICAL HORIZONTAL
"N" COIL
RED
BLUE
3
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