Carrier P110-lbp2018a, P110-lfp1025a, P110-sbp2017a, P110-sfp1016a, P110-wtr2019a Owner's Manual

OWNER’S MANUAL

Part Number P110-LFP1025A, P110-WTR2019A,

P110-LBP2018A, P110-SFP1016A, P110-SBP2017A

Residential

Humidiﬁer

GENERAL

Congratulations on your excellent choice in this addition

to your home comfort system.

Your humidiﬁer represents both the latest in engineering development and the culmination of many years of experience from one of the most reputable manufacturers of comfort systems.

Your new unit is among the most energy-efficient and reliable home humidiﬁers available today. To assure its dependability, spend a few minutes now with this booklet. Learn about the operation of your humidiﬁer and the small amount of maintenance it takes to keep it operating at peak efficiency.

During the heating season, your home can become uncomfortably dry. This is because cold winter air holds very little moisture. When outdoor air is warmed to average room temperature, its relative humidity falls to even lower levels.

Proper humidity control can alleviate problems caused by excessive dryness. The additional moisture supplied by your humidiﬁer may enable you to reduce the temperature setting on your thermostat — without any loss of indoor comfort.

Your humidiﬁer adds water to the air inside your home. Although the rate of humidiﬁcation is variable, it may exceed one-half gallon of water per hour. The typical process of humidiﬁcation begins when water ﬂows through the humidiﬁer valve and soaks the large evaporator pad. Hot, dry air from the furnace passes through the pad and absorbs the water. Then, this moisture-laden air is distributed throughout the house via the ductwork. See Fig. 1. Typical humidiﬁer installations are shown in Fig. 2.

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

Table 1 — Humidistat Settings

OUTSIDE

TEMPERATURE

(°F)

−20 15

−10 20 (LOW)

−0 25 10 30 20 35 30 40 (MED)

DRY AIR

RECOMMENDED

HUMIDISTAT SETTING

(% RELATIVE HUMIDITY)

EVAPORATOR PAD

HUMIDIFIED AIR

DRAIN

OPERATING YOUR HUMIDIFIER

Your new humidiﬁer is designed to operate as part of your home heating system. For performance at maximum efficiency, follow these recommendations:

• The humidiﬁer is controlled by a humidistat. Adjust the

humidistat setting according to the outside temperature. Refer to Table 1 as a general guide. If after several days, the air in your home is too moist, lower the humidistat setting. Condensation on single-pane windows indicates excessive moisture. If the air is too dry, increase the setting.

• Continuous blower operation provides for constant hu-

midiﬁcation. Continuous blower operation also minimizes temperature differences throughout the home. Furthermore, a system equipped with an electronic air cleaner offers the added beneﬁt of full-time air ﬁltration.

• Supply- and return-airgrillesshouldnotbe blocked by drapes,

furniture, or other objects. Restricted airﬂow reduces the efficiency of the humidiﬁer, as well as that of the whole comfort system.

Manufacturer reserves the right to discontinue, or

change at any time, speciﬁcations or designs

without notice and without incurring obligations.

REPLACEMENT COMPONENTS DIVISION LITERATURE NUMBER HUM-50SO R CARRIER CORPORATION 1/99 REPLACES 2-05930 PRINTED IN U.S.A.

Fig. 1 — Humidiﬁer Operation

Fig.2—Typical Humidiﬁer Installations

Start-Up Procedures

1. Open the saddle valve on the water supply line. (See Fig. 3.) Set humidistat to the desired relative humidity. (See Fig. 4 and Table 1.)

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

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

• On P110-L8P2018A or P110-LFP1025A humidiﬁers,

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 offthe cabinet more than 1 in. when water is ﬂowing. (See Fig. 5 or 6.)

• On a P110-SBP2017A 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. 7.)

• On a P110-SFP1016A humidiﬁer, open the side door

or the front cover.If the front cover is opened, hold the pad assembly in place. Check to see if water is ﬂowing from the solenoid valve into the distributor pan. (See Fig. 8.)

• On a P110-WTR2019Ahumidiﬁer,look through the win-

dow on front of the unit to see that the evaporator pad is rotating and water is ﬂowing. (See Fig. 9.)

The P110-WTR2019Ahumidiﬁer is controlled by a float valve. Turning off the furnace will not affect the water ﬂow until ﬂoat level is achieved.

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.

SOLENOID VALVE

DISTRIBUTOR COVER

DISTRIBUTOR PAN

EVAPORATOR PAD

CABINET

BOTTOM ACCESS PANEL

Fig. 5 — Humidiﬁer Details — P110-LBP2018A

SOLENOID VALVE

DISTRIBUTOR COVER

DISTRIBUTOR PAN

EVAPORATOR PAD

CABINET

BOTTOM ACCESS PANEL

Fig. 6 — Humidiﬁer Details — P110-LFP1025A

Fig. 3 — Saddle Valve

HUMIDISTAT

Fig. 4 — Humidistat

CABINET

DUCT HOUSING

RECTIFIER

INLET

DRAIN

SOLENOID VALVE

DISTRIBUTOR PAN

EVAPORA T OR PAD

SIDE ACCESS DOOR

Fig. 7 — Humidiﬁer Details — P110-SBP2017A

CABINET

SOLENOID VALVE

FRONT COVER

SCREWS (4)

SIDE ACCESS DOOR

DISTRIBUTOR PAN (HIDDEN)

PAD ASSEMBL Y

Fig. 8 — Humidiﬁer Details — P110-SFP1016A

BEARING RETAINER

CABINET

PAD

PAN

Fig. 9 — Humidiﬁer Details — P110-WTR2019A

Shutdown Procedures — To shut down your humidi-

ﬁer, close the saddle valve on the water line. Then turn off the humidistat. When set to the OFF position, the humidistat shuts off the electrical power to the solenoid valve on the humidiﬁer.

NOTE: If your home comfort system includes cooling, be sure the water supply to your humidiﬁer is turned offduring the cooling season. Close the damper located in the bypass duct if one is installed. If your humidiﬁer is a part no. P110WTR2019A, drain and clean the water pan as described in cleaning procedures.

PERFORMING ROUTINE MAINTENANCE

Withthe proper maintenance and care, your humidiﬁer will operate economically and dependably. Maintenance can be accomplished easily by referring to the following directions. However,before performing any maintenance, consider these important safety precautions:

Disconnect all electrical power to the humidiﬁer and furnace before performing any service or maintenance to avoid personal injury or death.

NOTE: There may be more than one electrical disconnect switch.

Although special care has been taken to minimize sharp edges in the construction of your humidiﬁer, be extremely careful when handling parts or reaching into the unit to avoid personal injury.

Your humidiﬁer has been designed for easy disassembly to simplify cleaning and servicing. Your unit must be kept clean to maintain its efficiency.

Regular inspection allows you to determine the cleaning schedule best suited to your humidiﬁer’s operating conditions. The frequency for required maintenance will depend most upon the available water supply. In areas where hard water and high mineral content are prevalent, more frequent cleaning and servicing may be required.

At minimum, the humidiﬁer will need to be cleaned at the beginning of every heating season.

Cleaning Procedures

P110-LBP2018A,P110-SBP2017A, P110-LFP1025A, AND P110-SFP1016A HUMIDIFIERS

1. Turn offall electrical power to the humidiﬁer and furnace

or fan coil.

2. Turn off the humidiﬁer’s water supply. (See Fig. 3.)

3. Disassemble the humidiﬁer.

• To disassemble a P110-SBP2017A humidiﬁer, gently pull the latch that secures the access panel. Remove the door and slide the evaporator pad assembly out of the unit. (See Fig. 7.)

• To disassemble either a P110-LBP2018A or P110LFP1025Ahumidiﬁer,ﬁrst remove the water supply connection to the solenoid valve. Next, remove the screw that holds the distributor cover to the cabinet, and lift off the cover. Disconnect the drain line from the sump and loosen the thumbscrews(s) holding the sump to the cabinet. Remove the sump. Remove evaporator pad assembly. (See Fig. 5 or 6.)

• To disassemble a P110-SFP1016A humidiﬁer, the pad assembly can be removed from the side access door or the front cover. When removing the side door, lift the pad assembly up by holding the tabs and slide the assembly out. When removing the front cover, disconnect the quick connects to the solenoid valve, unscrew the 4 screws to the front cover, snap loose the top and bottom catches, and lay the front cover aside. Once the front cover is off, lift the pad assembly up and twist it out. The pad assembly consists of 4 parts; the distributor pan, frame, sump, and the evaporator pad. Pull the distributor pan apart from the frame and the evaporator pad can be removed. Do not force the evaporator pad in or out without removing the distributor pan as this will distort the pad. See Fig. 8.

4. Clean the humidiﬁer’s external components.

• If your humidiﬁer is a P110-SBP2017Ahumidiﬁer,wash the access door and outlet drain portion of the cabinet. Make sure the drain is open.

• If your humidiﬁer is a P110-LBP2018A, P110-SFP1016A, or P110-LFP1025A unit, wash the distributor cover, sump cover, and cabinet. Be sure the inlet ports are open and clean. Then, clean the sump with a solution of detergent and water.

5. Clean the internal components of your humidiﬁer. Wash the distributor pan with a mild detergent and warm water. Be sure holes and slots in the pan are clean and unobstructed. Wash the evaporator pad assembly in a detergent solution. If there are scale deposits on the pad, soak

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