Bryant HUMBBLBP2018, HUMBBWTR2019 Models Humbblbp HUMBBSBP, HUMBBLFP, Humbbsfp, Model Humbbwtr

Regular inspection allows you to deter- mine 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 heat- ing season.

CLEANING PROCEDURES

Models HUMBBLBP,

HUMBBSBP, HUMBBLFP, and

HUMBBSFP

1. Turn off all electrical power to the

humidifier and furnace or fan coil.

2. Turn off the humidifier’s water

supply. (See Fig. 4.)

3. Disassemble the humidifier.

• To disassemble a Model HUMBBSBP

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. 8.)

• To disassemble either a Model

HUMBBLBP or Model HUMBBLFP

humidifier, first remove the water supply

connection to the solenoid valve. Next,

remove the screw that holds the distribu-

tor cover to the cabinet, and lift off the

cover. Disconnect the drain line from the

sump and loosen the thumbscrew(s)

holding the sump to the cabinet. Remove

the sump. Remove evaporator pad

•If your humidifier is a Model HUMBBLBP or HUMBBLFP, 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 distribu- tor pan with a mild detergent and warm water. Be sure holes and slots in the pan are clean and unob- structed. Wash the evaporator pad assembly in a detergent solution. If there are scale deposits on the pad, soak it in ordinary household vine- gar. If the pad is covered by a heavy deposit of scale, or if the local water supply has high sulfate or calcium content, replace the pad with a new one. Contact your dealer for replace- ment part.

6.Reassemble your humidifier.

7.Turn on the electrical power and water supplies. Refer to the startup procedures.

Model HUMBBWTR

1.	Turn off all electrical power to the
	humidifier and furnace or fan coil.
2.	Turn off the humidifier’s water
	supply. (See Fig. 4.)
3.	Drain water from the unit. Place a
	pail underneath the drain plug
	located on the bottom of the humid-
	ifier cabinet. Lift the tab on the drain
	plug and remove the plug. Allow
	all water to drain from the unit.

located on the float arm. Inspect the water opening in the valve body. If the opening is clogged, use a pin to remove the obstruction. Remove any accumulated deposits from the valve body and float arm.

7.Clean the water pan and unit cabi- net. Tilt the water pan and lift it from the unit. Wash the pan with warm, soapy water. Flex the pan to loosen accumulated scale. Wash the unit interior, removing any accumulated deposits. Inspect the drain line to in- sure that no blockage has occurred. Clean as required. (See Fig. 12.)

8.Reassemble your Model HUMBBWTR humidifier. Reinsert the water pan and drain plug. Ensure that the overflow tube is inserted into the hole at the bottom of the cabinet. Attach the float arm to the valve body by aligning the holes on both parts and reinserting the pin. Do not force or bend the pin. The float arm should have free up-and- down movement. Install the evapo- rator pad assembly. Ensure that the square shaft engages the motor cou- pling and that the bearing washer is located inside the bearing retainer. Turn the water on. Adjust float by rotating until water covers inside of foam drum. Attach the access door and turn the latches.

PIN

assembly. (See Fig. 6 or 7, according to

the model you own.)

• To disassemble a Model HUMBBSFP,

the pad assembly can be removed from the

side access door or the front cover. When

removing the side door, lift the pad assem-

bly up by holding the tabs and slide the

assembly out. When removing the front

	(See Fig. 12.)
4.	Remove the front door from the
	humidifier. Rotate the latches one-
	half turn, then pull the door forward.
5.	Remove and inspect the evaporator
	pad assembly. Lift the bearing from
	its retainer. (See Fig. 10.) Pull the
	assembly away from the motor to
	disengage the assembly shaft from

FLOAT ARM

HIGHER LOWER

VALVE BODY

VALVE SEAT

cover on Model HUMBBSFP, 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 evap-

orator pad in or out without removing the

distributor pan, as this will distort the pad.

4. Clean the humidifier’s external

components.

• If your humidifier is a Model

HUMBBSBP humidifier, wash the access

door and outlet drain portion of the cabi-

net. Make sure the drain is open.

the motor coupling. Remove assem-

bly through the access opening.

Inspect the evaporator pad. If the pad is heavily loaded with scale, or if the local water has a high sulfate content, replace the pad. Contact your dealer for replace- ment part.

NOTE: For best performance, the evap- orator pad should be replaced before each heating season.

6.Inspect the float assembly. Remove the float arm from the valve body by sliding out the pin and lifting off the float arm. (See Fig. 11.) Inspect the rubber valve seat located inside the float arm. If the seat appears to be nicked or worn, invert the seat or re- place it with the spare valve seat

—4—

Fig. 11—Float Arm Removal

HUMIDIFIER HOUSING
WATER PAN
OVERFLOW TUBE	DRAIN PLUG

Fig. 12—Cleaning Water Pan and Unit Cabinet

9.Turn on electrical power supplies. Refer to startup procedures listed on page 2.