Honeywell HE120 User Manual

HE120 By-pass Drum Humidifier

INSTALLATION INSTRUCTIONS

Contents

Unpacking the Unit .................................................................................................................................................................... 2

Before You Begin .................................. .................................. .. ................................................................................................ 4

STEP 1: Determine Best Location ..................................... .................................... .................................................................... 4

STEP 2: Install Humidifier ......................................................................................................................................................... 5

STEP 3: Install Bypass Collar ......................... ... .................................... .................................................................................. 7

STEP 4: Install Bypass Duct ..................................................................................................................................................... 9

STEP 5: Assemble Humidifier Drum ........ ... .. ... ......................................................................................................................... 10

STEP 6: Assemble Humidifier ................................................................................................................................................... 11

STEP 7: Install Drain ................................................................................................................................................................. 13

STEP 8: Install Saddle Valve ..................................................................................................................................................... 13

STEP 9: Install Water Line ........................................................................................................................................................ 15

STEP 10: Install Humidistat ....................................................................................................................................................... 16

STEP 11 : Wiring ............................................................. ........................................................................................................... 19

STEP 12: Testing and Checkout ........ ... .................................... ................................................................................................ 20

69-1860EF-01

HE120 BY-PASS DRUM HUMIDIFIER

UNPACKING THE UNIT

This box contains all of the parts necessary to install your new Honeywell HE120 Humidifier in most installations. Before
continuing, please take the time to familiarize yourself with these components.

• Humidifier Housing

• Humidifier Cover

• Float Valve
(Installed on
Humidifier
Housing)

• Humidifier Accessory Bag (Plastic Bag)

• Water Pan

• Humidifier Pad

• Humidistat Installation Kit (Small Bag inside
Humidifier Accessory Bag)

• Motor Plate

• Motor Cover

• Humidistat

A Bearing Bracket
B Valve Hole Plug
C Drain Fitting
D Drum Shaft
E Spring Retainer (x2)

F Humidistat Label
G Humidistat Template
H Brass Compression Nut

I Brass Compression Sleeve

J Humidistat Gasket

69-1860EF—01 2

K Screw Terminals (x2)

L #6 x 1 in. Sheet Metal Screw (x4)

HE120 BY-PASS DRUM HUMIDIFIER

• Closed Drum End

• Damper

• Open Drum End

• Bypass Duct
(6 in. dia.
Flexible)

• Bypass Collar

U 18-gauge two-strand thermostat wire (20 ft.)
V 1/4 in. plastic water tubing (20 ft.)

W 3/8 in. inside diameter, 1/2 in. outside diameter

plastic Overflow Tube (10 ft.) [Not Included]

X Plug-in Transformer
Y Duct Tape (10 yds.)

• Installation Accessory Kit (Plastic Bag)

• Saddle Valve Kit (Small Plastic Bag)

M Saddle Valve

N BracketO
P #10 x 1-3/4 in. Machine Screws (x 2)

Q Brass Compression Nut

R Brass Insert
S Plastic Compression Sleeve

T Brass Compression Sleeve

Z Wire Nuts (x4)
AA 1/2 in. Tube Clamp (smaller)
BB #8 x 3/4 in. Sheet Metal Screws (x 18)
CC Brass Insert (x2)
DD Plastic Compression Sleeve (x2)

EE Tube retainers (x6)

Tools

You will need the following tools to complete the installation:

 Tin snips
 Screwdriver
 Adjustable wrench or 1/2 in. open-end wrench
 Drill
 Drill bits
 Level
 Marker
 Wire stripper
 Utility knife
 Scissors

3 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

BEFORE YOU BEGIN

When Installing this Product…

1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condi­tion.

2. Installation of this Humidifier requires several steps.
Read and understand instructions completely before
beginning installation.

3. After installation is complete, check out product opera­tion as provided in these instructions.

STEP 1: DETERMINE BEST LOCATION

CAUTION

Freezing Water Hazard.
Can result in water damage to property.

Locate Humidifier where the ambient temperature is
between 32

1. Select a location to mount the Humidifier on the supply
(warm air) or return duct. See Fig 1.

• Select a location that can not damage the air

conditioner coil during installation.

• Do not locate Humidifier on furnace cabinet.

• Allow adequate clearance in front of and above the

Humidifier so you can easily remove cover and
perform maintenance.

• Allow enough space for the drain or overflow tube.

• Mount Humidifier in conditioned (heated) space to

prevent freezing.

• Select a location where the 3 ft. of Bypass Duct is

adequate to connect the Humidifier to the Bypass
Collar.

o

F and 160oF.

NOTE: The Bypass Duct can be connected to either side of

the Humidifier Housing. See Fig. 2.

2. Select a location for the Bypass Collar on the opposite
duct. See Fig. 1. (The Humidifier is designed to allow
Bypass Duct mounting on either side of the Humidifier.
See Fig. 2.)

• Do not locate Bypass Collar on furnace cabinet.

• Select a location where the 3 ft. of Bypass Duct is

adequate to connect the Humidifier to the Bypass
Collar.

• Allow enough room for the optional Damper.

HUMIDIFIER

BYPASS
COLLAR

LOWBOY

HORIZONTAL

DOWN

FLO

HIGHBOY

M12248D

Fig. 1. Typical Humidifier installation locations.

69-1860EF—01 4

Fig. 2. Available Bypass configurations.

HE120 BY-PASS DRUM HUMIDIFIER

3. Select a location for the Humidistat.

• Humidistat can be mounted on the return duct or on
the wall in the main living space. (Return duct
mounting is easiest for installing wiring.)

• For return duct mounting, the Humidistat must be
mounted upstream from the Humidifier and Bypass
Collar so it is properly sensing the relative humidity
of the house. See Fig. 3.

• Locate the control at least 8 in. upstream from the
Humidifier or Bypass Collar in the return air duct.

ALTERNATE LOCATION

RETURN
AIR

6 in. (152 mm)
MINIMUM

BEST
LOCATION

RETURN AIR DUCT

15 in. (381 mm)
MINIMUM

8 in. (203 mm)
MINIMUM

M13611

Fig. 3. Selecting duct location for

Humidistat and Humidifier.

RETURN
AIR

NOTE: Every installatio n is unique. Please ensure that

water, po w e r, and drain are available before install­ing the device. In some cases, additional wire, tub­ing, or duct may need to be purchased in order to
correctly install the Humidifier.

STEP 2: INSTALL HUMIDIFIER

WARNING

Hazardous Volt age.
Can cause personal injury or equipment damage.

Do not cut or drill into any air conditioning or electrical
accessory.

CAUTION

Sharp Edges Installation Hazard.
Can cause personal injury.

Wear gloves and safety glasses.

1. Turn off power to heating and cooling system.

2. Draw a level line on the duct in the location chosen for

the Humidifier. (Leveling assures optimal performance.)
See Fig. 4.

NOTE: There must be at least 1-1/2 in. of duct above the line

and 8-1/2 in. of duct below the line for proper installa­tion. The duct must also be at least 11 in. wide for
proper installation.

4. Select a water supply location

• Use either hard or soft water in the Humidifier.

• Use either hot or cold water in the Humidifier.

• Make sure 20 ft. of Plastic Water Tubing is long
enough to connect the water supply (saddle valve) to
the Humidifier.

• Make sure saddle valve is accessible after
installation.

5. Locate 120V Electrical Outlet.

• Select a location with access to an outlet. If an outlet
is not available, contact an electrician to have one
installed.

• Make sure the 20 ft. of Thermostat Wire is adequate
to reach from the Humidifier motor to the Humidistat,
and the Humidistat to the Plug-in Transformer.

6. Locate Closest Floor Drain.

• Select location with access to floor drain, if available.

• Overflow drain is required in applications where
water overflow could cause flooding or property
damage.

• If an overflow drain is needed, make sure Overflow
Tubing is long enough to reach from the Humidifier to
the floor drain.

Fig. 4. Marking template location.

3. Cut out template on page 22.

4. T ape template in position and trace around the template

with a marker.

5. Remove the template and carefully cut the rectangular
opening using tin snips. See Fig. 5. (Use a drill to start
the cut in the middle of the rectangle.)

5 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

STARTING HOLE

M13618

MOUNTING HOLES

MOUNTING HOLES

M13619

Fig. 6. Marking Mounting Hole locations.

10. Place the Humidifier Housing over the screws, level the

housing and tighten the three screws. See Fig. 7.

11. Secure the bottom of the Humidifier Housing using two
#8 x 3/4 in. Sheet Metal Screws.

Fig. 5. Cutting Humidifier opening.

6. Disassemble the Humidifier; remove the cover by lifting

up on the front edge and take out the drum components,
Water Pan, and Motor Plate.

7. Position the HE120 Humidifier Housing over the open­ing (make sure it is level) and mark the five mounting
holes. See Fig. 6.

8. Remove the HE120 Humidifier Housing and pre-drill the
mounting holes using a 1/8 in. drill bit

9. Start the three #8 x 3/4 in. Sheet Metal Screws in the
top holes.

Fig. 7. Mounting Humidifier.

12. Check that the Humidifier is level.

69-1860EF—01 6

HE120 BY-PASS DRUM HUMIDIFIER

STEP 3: INSTALL BYPASS COLLAR

WARNING

Hazardous Volt age.
Can cause personal injury or equipment damage.

Do not cut or drill into any air conditioning or electrical
accessory.

CAUTION

Sharp Edges Installa tio n Hazard.
Can cause personal injury.

Wear gloves and safety glasses.

NOTE: This Humidifier is supplied with an optional damper

to shut off air flow to the unit during the summer. This
damper is required for homes with air conditioning.

1. Position the 6 in. Bypass Collar on the duct so that all
six mounting holes are over the duct. (If you are install­ing the optional damper, it is recommended that the flat
side of the Bypass Collar face up.) See Fig. 8.

OPTIONAL
DAMPER

2. Trace around the inside of the collar and mark the loca­tion of the mounting holes with a marker.

3. Remove the collar and carefully cut out the circular
opening using tin snips. See Fig. 9. (Use a drill to start
the cut in the middle of the circle. Cut in an outward spi­ral to assist in controlling the cut.)

6 IN. ROUND TEMPLATE

STARTING
HOLE

M20172

FLAT SIDE OF
BYPASS COLLAR

M13620

Fig. 8. Mounting Bypass Collar (Optional Damper shown).

Fig. 9. Cutting Bypass hole.

7 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

4. Pre-drill the mounting holes using a 1/8 in. drill bit. If you
are installing the optional Damper, do not drill the hole
where the damper blade will swing. See Fig. 10.

OPTIONAL
DAMPER

PIVOT
POINT

BYPASS
COLLAR

M13615

DO NOT DRILL
THIS SCREW
LOCATION
IF OPTIONAL
DAMPER IS USED

OPEN

CLOSE

Fig. 10. Drill pattern.

5. If you are installing the Optional Damper, place a #8 X

3/4 in. Sheet Metal Screw through the Bypass Collar
and Damper, as shown in Figure 11.

BENT UP EDGE OF
DAMPER

SHEET METAL
SCREW (PIVOT SCREW)

HOLE IN
DAMPER

FLAT SIDE
OF BYPASS
COLLAR

M13621

Fig. 11. Installing Optional Damper.

6. Place the Damper into position and install using

#8 x 3/4 in. Sheet Metal Screws.

7. If you installed the optional Damper, check that it opens
and closes correctly. (If necessary, tighten or loosen the
pivot screw to make it open and close correctly.)

NOTE: The Damper will not cover all of the opening in the

duct when closed. A small amount of leakage when
closed is acceptable.

69-1860EF—01 8

HE120 BY-PASS DRUM HUMIDIFIER

STEP 4: INSTALL BYPASS DUCT

CAUTION

Sharp Edges Installa tio n Hazard.
Can cause personal injury.

Wear gloves and safety glasses.

1. Carefully stretch out flexible Bypass Duct between
Bypass Collar and Humidifier. See Fig. 12.

Fig. 12. Installing flex duct.

3. Secure Bypass Duct to Humidifier using at least three

#8 x 3/4 in. Sheet Metal Screws. See Fig. 14. Drill pilot
holes using 1/8 in. drill bit.)

Fig. 14. Connecting Bypass Duct to Humidifier.

4. Seal both duct connections with Duct Tape. See Fig. 15.

IMPORTANT

Use only duct rated metallized duct tape to seal duct
connections.

2. Secure Bypass Duct to Bypass Collar using at least two
#8 x 3/4 in. Sheet Metal Screws. See Fig. 13. (Drill pilot
holes using 1/8 in. drill bit.)

Fig. 13. Connecting Bypass Duct to Bypass Collar.

Fig. 15. Sealing connections with tape.

5. If you installed the optional Damper, check that it opens

and closes correctly. (It may be necessary to cut or
move duct tape to allow proper operation of the
damper.)

9 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

STEP 5: ASSEMBLE HUMIDIFIER DRUM

1. Slide Closed Drum End over Drum Shaft with round
posts facing away from metal tabs. See Fig. 16. (Slots in
cone end should rest over metal tab.)

METAL
TAB

SLOT IN
CLOSED
DRUM END

Fig. 16. Installing Closed Drum End.

M13622

3. Slide Humidifier Pad over closed drum end posts.
See Fig. 18.

Fig. 18. Installing Humidifier Pad.

4. Slide Open Drum End over Drum Shaft with round posts

inside Humidifier Pad. See Fig. 19.

5. Secure Open Drum End to shaft using Spring Retainer.
(Squeeze spring ends slightly to install.)

2. Secure Closed Drum End to Drum Shaft using Spring
Retainer. See Fig. 17. (Squeeze spring ends slightly to
install.)

Fig. 17. Installing Spring Retainer.

Fig. 19. Installing Open Drum End.

SPRING
RETAINER

M13623

69-1860EF—01 10

HE120 BY-PASS DRUM HUMIDIFIER

STEP 6: ASSEMBLE HUMIDIFIER

1. Position the Bearing Bracket inside the Humidifier
Housing to the side where the Bypa ss Duct is co n­nected. Make sure the “U” shape is pointing up.
See Fig 20.

“U” SHAPE FACES UP

SNAP TABS
INTO PLACE

Fig. 20. Installing Bearing Bracket.

2. Snap the Bearing Bracket into place.

3. Position the Motor Plate on the opposite side of the

Humidifier Housing with the wires at the bottom.
See Fig 21.

M13624

5. Place motor lead wires through bottom hole of Motor
Cover and snap into place on outside of Humidifier.
See Fig. 22.

Fig. 22. Installing Motor Cover.

6. Install the Float Valve to the Humidifier Housing on the

same side as the Motor Plate. See Fig. 24. (If the Float
Valve is already installed on the same side as the Motor
Plate, skip this step.)
a. Unscrew Float Valve Retaining Nut using a 1/2 in.

wrench. See Fig. 23.
b. Remove Float Valve from housing.
c. Place Float Valve Stem through “D” hole on same

side as the motor. See Fig. 24. (Float must be at

bottom.)
d. Place Float Valve Washer over Float Valve Stem

with recessed side of washer against the Humidifier

wall. See Fig. 25.
e. Secure Float Valve using Float Valve Retaining Nut

and tighten with 1/2 in. wrench. See Fig. 23.

MOTOR WIRES AT BOTTOM

Fig. 21. Installing Motor Plate .

4. Snap Motor Plate into place.

M13625

IMPORTANT

The Float Valve must
of the Humidifier as the motor.

be installed on the same side

VALVE SEAT
RETAINING NUT

Fig. 23. Float Valve Retaining Nut.

M13610

11 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

8. Insert the Drain Fitting into the bottom of the Humidifier
on the same side as the Bypass Duct. See Fig. 27.

MOTOR

FLOAT VALVE

M13626

Fig. 24. Correct Float Valve position.

HUMIDIFIER
HOUSING WALL

FLOAT VALVE
RETAINING NUT

FLOAT VALVE STEM

DRAIN
FITTING

FLOAT

M13628

Fig. 27. Installing Drain Fitting.

9. Place the Water Pan in the Humidifier Housing so Over-

flow Tube is above previously installed Drain Fitting.
See Fig. 28.

OVERFLOW
TUBE

FLOAT VALVE
WASHER
(RECESSED SIDE)

M13616

Fig. 25. Re-installing Float Valve.

7. Insert the Valve Hole Plug in the “D” hole on the oppo-

site side of the Float Valve. See Fig. 26.

VALVE HOLE PLUG

M13627

Fig. 26. Installing Valve Hole Plug.

DRAIN FITTING
(UNDERNEATH HUMIDIFIER HOUSING)

M13629

Fig. 28. Installing Water Pan.

10. Install Humidifier Drum by inserting motor coupling end

first, then snapping it into the bearing. See Fig. 29.

MOTOR

M13630

Fig. 29. Installing Humidifier Drum.

69-1860EF—01 12

HE120 BY-PASS DRUM HUMIDIFIER

11. Snap Humidifier Cover into place.

STEP 7: INSTALL DRAIN

CAUTION

Water Hazard.
Can result in water damage to property.

Install overflow drain in applications where water
damage can result from Float Valve failure.

1. Slide the 1/2 in. Overflow Clamp over the 3/8 in. inside
diameter, 1/2 in. outside diameter Overflow Tube.
See Fig. 30.

2. Push the Overflow Tube over the Drain Fitting.

3. Hand-tighten the Clamp around the Overflow Tube and

the Drain Fitting.

4. Fasten the Overflow Tube (can use duct tape) along the
route to the drain to prevent movement and ensure
downward slope.

5. Cut Overflow Tube to length so the tubing terminates at
the drain or bucket using a utility knife.

IMPORTANT

Do not turn handle before or while installing the sad­dle valve. Be sure the piercing lance does not pro­trude beyond the rubber gasket. Failure to do this
may damage piercing needle.

To prevent debris from clogging the Float Valve, do
not install the saddle valve with the handle pointing
toward the floor.

NOTE: This saddle valve can be used with either copper or

steel/brass pipe. Please refer to the correct instruc­tions for your application.

Copper Pipe:

1. Shut off the water. (Either hot or cold water and either
hard or softened water can be used in the Humidifier.)

2. Turn handle counter clockwise until piercing lance is
below the rubber gasket. See Fig. 31.

M20177

Fig. 30. Installing overflow tube.

IMPORTANT

Overflow Tube must follow downward slope from
Humidifier to drain for correct draining.

STEP 8: INSTALL SADDLE VALVE

CAUTION

Chemical Hazard.
Can cause personal injury or equipment damage.

Do not use any line connected to an air conditioner.
Do not use gas line.

LANCE
BELOW
GASKET

Fig. 31. Positioning Saddle Valve for installation with

Copper Pipe.

3. Assemble saddle valve over copper tube using

#10 x 1-3/4 in. machine screws. See Fig. 32.

WATER LINE

Fig. 32. Installing Sa dd le Valve.

M13631

SCREW DRIVER

M20175

13 69-1860EF—01

HE120 BY-PASS DRUM HUMIDIFIER

a. For 3/8 in. diameter copper tubing use bracket side

with projections to prevent distorting tube.
See Fig. 33.

b. Use “V” side of bracket for all other size tubing.

BRACKET SIDE
(USE WITH 3/8 IN. DIAMETER
COPPER TUBING)

“V” SIDE OF BRACKET
(USE WITH LARGER
DIAMETER TUBING)

M13633

Fig. 33. Saddle Valve Bracket installation.

4. Tighten screws evenly – brackets should be parallel.

Tighten firmly.

Steel or Brass Pipe:

1. Shut off water supply and drain the line.

2. Drill a 3/16 in. hole in pipe. Use a cordless drill to avoid

shock hazard.

3. Turn the handle to expose the lance beyond the gasket
no more than 3/16 in. See Fig. 34.

4. Place valve body over hole such that lance fits into the
drilled hole in the pipe.

5. Tighten bottom clamp evenly. Brackets should be paral­lel. See Fig. 32.

6. Turn handle clockwise to close the valve.

7. Open water supply.

LANCE ABOVE
GASKET
3/16 IN. MAXIMUM

M13632

Fig. 34. Positioning Saddle Valve for installation

with steel pipe.

69-1860EF—01 14

HE120 BY-PASS DRUM HUMIDIFIER

STEP 9: INSTALL WATER LINE

CAUTION

Water Hazard.
Can result in water damage to property.

Properly secure water line along route to prevent
movement and provide support at compression nut
joints.

IMPORTANT

Be sure to check with your local building codes to
determine if the Plastic Water Tubing packaged with
the Humidifier is appropriate for your installation.
(Some local building codes require 1/4 in. copper
tubing to be used.)

1. Place Brass Compression Nut over Plastic Water Tub­ing. See Fig. 35.

BRASS COMPRESSION NUT

PLASTIC
COMPRESSION
RING

BRASS INSERT

2. Slide the Plastic Compression Sleeve over the Tubing.

3. Install Brass Insert into end of Plastic Water Tubing.

NOTE: To prevent leaking, use Plastic Compression Sleeve

only with Plastic Tubing and Copper Compression
Sleeve only with copper tubing.

4. Insert the tubing into the saddle valve fitting.

5. Support the valve while tightening the Brass Compres-

sion Nut with an 1/2 in. open-end or adjustable wrench.

6. Route Plastic Water Tubing from saddle valve to Humid­ifier Float Valve Fitting. Secure Plastic Water Tubing
along the route with Tube Retainers to prevent move­ment.

7. Cut Plastic Water Tubing to length. (Do not cut tubing
too short.)

8. Repeat steps A through E to attach Tubing to Float
Va lve Fitting.

M20176

Fig. 35. Connecting plastic water line.

15 69-1860EF—01