Carrier HUMCCWTR2019, HUMCCLFP1025 owner manual Check to see if water is flowing into the humidifier

•Supply- and return-air grilles should not be blocked by items such as drapes, furniture, and toys. Restricted airflow reduces the efficiency of the humidifier, as well as that of the whole com- fort system.

•The humidifier unit must be properly maintained on a regular basis.

STARTUP PROCEDURES

1.Open the saddle valve on the water supply line. (See Fig. 4.) Set humidistat to the desired relative humidity. (See Fig. 5 and Table 2.)

2.Turn the furnace on and adjust the thermostat to a high tem- perature setting. Be sure that the furnace blower is operating.

3.Check to see if water is flowing into the humidifier.

Fig. 4 — Saddle Valve Fig. 5

•On a Model HUMCCLBP or Model HUMCCLFP humidifi- er, loosen the thumbscrew that holds the distributor cover to the top of the cabinet. Lift up the distributor cover slightly to make certain that water is flowing from the solenoid valve into the distributor pan. Do not lift the cover off the cabinet more than 1 in. when water is flowing. (See Fig. 6 or 7 according to the model you own.)

SOLENOID VALVE

DISTRIBUTOR COVER

DISTRIBUTOR PAN

EVAPORATOR PAD

CABINET

BOTTOM ACCESS

PANEL

Fig. 6 — Model HUMCCLBP2018-A--

•On a Model HUMCCSBP humidifier, gently pull the latch that secures the access door. Remove the door. Check to see if water is flowing from the solenoid valve into the evaporator pad. (See Fig. 8.)

•On a Model HUMCCSFP humidifier, open the side door or the front cover. If the front cover is opened, hold the pad assem- bly in place. Check to see if water is flowing from the solenoid valve into the distributor pan. (See Fig. 9.)

•On a Model HUMCCWTR unit, look through the window on front of the unit to see that the evaporator pad is rotating and water is flowing. (See Fig. 10.)

The Model HUMCCWTR is controlled by a float valve. Turning off the furnace will not affect the water flow until float level is achieved. (See Fig. 11.)

3

SOLENOID VALVE

DISTRIBUTOR COVER

DISTRIBUTOR PAN

EVAPORATOR PAD

CABINET

BOTTOM ACCESS PANEL

Fig. 7 — Model HUMCCLP1025-A--

INLET

CABINET SOLENOID VALVE

DISTRIBUTOR PAN

EVAPORATOR PAD

DUCT HOUSING

SIDE ACCESS DOOR

RECTIFIER

DRAIN

Fig. 8 — Model HUMCCSBP2017-A--

CABINET

FRONT COVER

SCREWS (4)

PAD ASSEMBLY

SIDE ACCESS DOOR

Fig. 9 — Model HUMCCSFP1016-A--

4.Turn off the furnace. When the blower stops, look into the humidifier to make sure the water is not flowing into the unit.

5.Replace the cover assembly and fasten securely.

6.Now, turn the furnace on and set the thermostat for desired room temperature.