Honeywell H46C-F Product Information Sheet

Honeywell

THESE HUMIDITY CONTROLLERS PRO­VIDE AUTOMATIC CONTROL OF A HU-

MIDIFIER OR A DEHUMIDIFIER FOR DE-

HUMIDIFICATION AND MILDEW CON­TROL IN AIR CONDITIONING SYSTEMS.
ALL MODELS ARE SUPPLIED WITH COV­ER AND CONTROL KNOB FOR WALL
MOUNTING.

❑ Cover of impact-resistant, molded

plastic.

❑ Sensing element of thin, moisture sensi-

tive nylon ribbon provides reliable opera­tion even when ambient temperature con­ditions change.

❑ Fully enclosed, dust-free, spst, snap

switch.

❑ Large, easy-to-read scaleplate on face

of controller.

❑ Positive ON and OFF setting positions

permit manual operation of the controlled
equipment.

S.M.

REV.

1O-87O

Form Number

@Honeywell

60-2097—2

Inc. 1987

THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING
TOLERANCES. THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. ALSO,
THIS PRODUCT IS TESTED AND CALIBRATED UNDER CLOSELY CONTROLLED CONDITIONS, AND SOME
MINOR DIFFERENCES IN PERFORMANCE CAN BE EXPECTED IF THOSE CONDITIONS ARE CHANGED.

r’MpORTANT-

TRADELINE MODELS

TRADELINE models are selected and packaged to provide ease of stocking, ease of handling, and maximum
replacement value. TRADELINE model specifications are the same as those of standard models except as
noted below:

.

TRADELINE MODELS AVAILABLE
ADDITIONAL FEATURES:

● H46E includes interrupter plug.

H46D,E.

STANDARD MODELS

SYSTEM CONTROL

HUMIDIFIER LEADWIRE

DEHUMIDIFIER

MODELS

H46Ca
H46Da
H46Eb

H46Fb

alncludes adapter plate for vertical switch box mounting.
blncludes 6 ft [1.8 m] electric cord.

(makes at set point)

x

—

x

—

H46E,F

(makes at set point

less differential)

—

x

—

x

have interrupter plug.

● TRADELINE

special instruction sheet.

SCALE RANGE

20-80%

x

—

x

.

pack; with

(RH) TERMINAL CONNECTION

10-60%

—

x x

—

x

cross reference label and

TYPE OF

OR

ELEC- SCREW

TRIC CORD TYPE

x

Note b
Note b

(continued on page 3)

—
—

—
—

WHEN PURCHASING REPLACEMENT AND MODERNIZATION PRODUCTS FROM YOUR TRADELINE
WHOLESALER OR YOUR DISTRIBUTOR, REFER TO THE TRADELINE CATALOG OR PRICE SHEETS FOR
COMPLETE ORDERING NUMBER, OR

1. Order number, TRADELINE if desired.

IF YOU HAVE ADDITIONAL QUESTIONS, NEED FURTHER INFORMATION, OR WOULD LIKE TO COMMENT ON OUR
PRODUCTS OR SERVICES, PLEASE WRITE OR PHONE

1. YOUR LOCAL HONEYWELL RESIDENTIAL SALES OFFICE (CHECK WHITE PAGES OF YOUR PHONE DIRECTORY).

2. RESIDENTIAL DIVISION CUSTOMER SERVICE

HONEYWELL INC., 1885 DOUGLAS DRIVE NORTH
MINNEAPOLIS, MINNESOTA 55422-4386 (61 2) 542-7500

IN CANADA—HONEYWELL LIMITED/HONEYWELL
Ml P 2V9. INTERNATIONAL SALES AND SERVICE OFFICES IN ALL PRINCIPAL CITIES OF THE WORLD.

SPECIFY—

LIMITEE,

2

740 ELLESMERE ROAD, SCARBOROUGH, ONTARIO

ELECTRICAL RATING (A at 50 or 60 Hz):

~74,61 _

H46C,E—

_2&

+

16

‘n

[37.

15

;

[6.4

‘Ir

H46D,F—

H46D,Fa

120 Vac 240 Vac

Full Load
Locked Rotor
Resistive
Pilot Duty

a

H46F model available with 8 or 12 A resistive rating

at 120 Vat.

SET POINT ADJUSTMENT: Control knob on face of

controller.

SWITCHING: Enclosed, dust-proof, snap-acting, spst

switch.

SENSING ELEMENT: Nylon ribbon.

DIFFERENTIAL Nonadjustable, 5 * 1 percent RH.
MAXIMUM AM BlENT TEMPERATURE: 125° F [52° C].
MOUNTING MEANS:

H46C, D—Mounts on vertical switch box with

adapter plate.

H46E,F—Mounts directly on wall with two screws

through keyhole slots in back of case.
COVER DIMENSIONS: See Figs. 1 and 2.
COVER FINISH: Silver bronze.

COVER MATERIAL Molded plastic.
UNDERWRITERS LABORATORIES, INC., LISTED: File

No. E4436; Guide No. XAPX.

CANADIAN STANDARDS ASSOCIATION LISTED: File

No. 1620; Guide No. 400E0.

4.4

26.4

12.0
50 VA at 24

H46D

2.2

13.2

6.0

Vac

h

+—

FIG. lANSTALLATION DIMENSIONS IN in. [mm II

BRACKETS] FOR

7

T

3:

[82.6]

A

J

:

[13.5]

~2J

32

[118.3]

H46C,D.

1

-i

[12.7]

1

,

I

3194A

- 1:

[34.9]

7

II

II

—

IG.

2-INSTALLATION DIMENSIONS IN in. [mm IN

BRACKETS] FOR

H46E,F.

3193A

WHEN INSTALLING THIS PRODUCT. . .

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazardous

condition.

2. Check the ratings given in the instructions and on

the product to make sure the product is suitable for

your application.

3. Installer must be a trained, experienced service

technician.

4. After installation is complete, check out product

operation as provided in these instructions.

Disconnect power supply before beginning in­stallation to prevent electrical shock or equipment
damage.

MOUNTING

Follow manufacturer’s instructions, if available. Other­wise proceed as follows. The H46C,D,E,F mount on a
wall at a location that will best sense the relative
humidity of the room. The H46C and D models must be
mounted with the adapter plate on a vertical switch
box. H46E and F models mount with two screws in

keyhole slots in back of case.

WIRING

All wiring must comply with local codes and
ordinances.

FOR MILDEW CONTROL

AND DEHUMIDIFICATION

d

Vacation homes that are unoccupied during the hot,

humid Florida summer are an invitation to mildew. The

3

60-2097—2

common cure is to simply select a moderate thermostat
setting and let the air conditioner run. By applying
either a low voltage thermostat in combination with an
H46C

Dehumidistat or a W884E Comfort Center, mildew equipment. This independent operation will allow the

can be reliably prevented and air conditioning energy
use can be oDtimized. The dehumidistat and thermostat
should be

w“ired

in parallel such that by leaving the

system switch in COOL and selecting appropriate set
points for example, 85° F [29° C] and 50 percent RH,
either device will be able to control the air conditioning

higher temperature set point and still prevent mildew by

controlling humidity. For wiring diagrams See Figs. 3

and 4.

Q539A T87F INTERNAL SCHEMATIC

-

~—––-.

I

/+\

FILTER

@

L,~~T

I
I

I

I

I

I

~

~:~&::VERLOADPROTECTIONA

~

HEATING OAMPERMOTOR{IF”SEO,.

~CLOGGED

10,763

FIL7ERSWITCH OR

q,

~,

\

NOD

ISCONNECTMEANSAS

COOLING

PANEL CONNECTION.

HEAT OFF COOL

A “

i J$

B

HEAT oFF COOL

‘----:

&v&

o

w

I

HEATING ‘
RELAY
OR
VALVE
COIL

I

“ ,

Y

.

COOLING
CONTACTOR
COIL

I

FAN

RELAY

COIL

1

1

)

I

4

I

?

r’+

A

FIG. 3—TYPICAL PARALLEL WIRING DIAGRAM OF H46C WITH T67F/Q539A COMBINATION FOR DEHUMIDIFI-

CATION AND MILDEW CONTROL.

~—–––-

1

;

/ \ FILTER

@ L,(-jl+T

Q539A

T87F INTERNAL SCHEMATIC

.- —.-———

T87F

1

I_’

HEATING
RELAY
OR
VALVE
COIL

I

t

~ ~~&~~RLOAO

~ I+EAT,NG DAMPER MOTOR
~

CLOGGED FILTER

—.—

FIG. 4—TYPICAL SERIES WIRING DIAGRAM OF H46C WITH

—--—.—

PrOteCtiOn ANfJ015c0NNEcTh4EAN5.S

{,FUSEO,.

S.WITCH OR

COOLING PANEL CONNECTION.

1

i

CATION AND MILDEW CONTROL.

1

H460,

NTROL CONTROLLER

T

[

EMP

IISE

w

F

HUMIDITY
FALL

1

A

f?

T67F/Q539A

R

H

COMBINATION FOR

FAN CONTROL

L4068

FAN MOTOR

1

.

10,830

COOLING

RELAY

R8230

+F

DEHUMIDIFI-

L

J+

-

–

FAN MOTOR

Q@

L

(1

(’J

POWER ,

A

SUPPLY

&OVIOEDISCONNECT

PROTECTION AS REQUIRE”.

MEANS AND OVERLOAD

HUMIDIFIER

,,,2.

IG. 5—TYPICAL WIRING DIAGRAMS FOR

SINGLE-SPEED FAN MOTOR.

HUM

IOITY H46C,E

~~-~EN

~

POWER SUPPLY,

PROTECTION AS REQUI RED.

FIG. 6—TYPICAL WIRING DIAGRAM FOR

PROVlDEDlSCOt4NECT

MEANS ANC10VERLOAD

H46C,E.

H46D,F

2569C

I

I

I

PROVIOE DISCONNECT MEANS ANO

A

OVERLOAD PROTECTION AS REQUIRE”.

TO ENSURE HUMIDIFIER OPERATION

A

IN WINTER WHEN THERMOSTAT
BASE FAN SWITCH Is AT
ADD SAIL SWITCH TO SYSTEM
AS SHOWN.

TO PREVENT HUMIDIFIER OPERATION

A

IN SUMMER, TURN H460 KNOB

.,

OFF’, PoSITION,

TO

IG.

7—TYPICAL WIRING DIAGRAM FOR H46D IN

‘oON,<

OR

SUB.

‘*AUTO:,

,AJ

SWITCH

S688A -3-

A

H46D

HUMIOITY

CONTROL

HUMIDIFIER
MOTOR

r

Q

2,,4

FORCED AIR SYSTEM WITH 2-SPEED FAN
MOTOR.

5

H46D

w-

5WL+ E%@

~ F&~~~l~~S;ONNECT

‘“i’

MEAN, AND

UMIDIFIER

r

CIVERLOAD PROTECTION

251

A

&EH”M,D,FIEFI PLUG ON
~7Ci

DEHUMIDIFIER ON H46E;TOH”M,D,F,ERON

IB

H46E;H”M,D,F,ER PLuG oN

Ii,,,.

“46,

12,444

FIG. 8—TYPICAL WIRING DIAGRAM FOR H48D USED

WITH A SWITCHING RELAY.

H46C & E DEHUMIDIFY
CONTROLLERS

The H46C and E switches make contact on a relative
humidity rise to the set point to start the dehumidifier. A
decrease in relative humidity to the set point minus the
differential breaks the switch contact to
humidifier.

Turn the control knob clockwise
stop to put the dehumidifier in the ON position. Set to
the OFF position by turning the control knob counter­clockwise

n

to the stop.

stop the de-

m

to the setting

H46D & F HUMIDITY
CONTROLLERS

The H46D and F switches make contact on a
humidity fall to the set point minus the differential. In

FIG.

9-H46E,F

most humidifier systems, the furnace fan must be
operating before the humidifier starts. An increase in
humidity to the set point breaks the switch contacts.

Turn control knob clockwise
ON position. Set to the OFF position by turning the
control knob counterclockwise

INTERRUPTER PLUG CONNECTIONS.

n

to the stop for

n

to the stop.

CHECKOUT

Place the system in operation and observe through at
least one complete cycle to make certain that all com­ponents are functioning properly.

Honeywell Inc.

1885 Douglas Drive N.

Golden Vallay, MN 55422 -4SS8

International Sales Offices in all principal cities of the world. Manufacturing in
Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands,
Spain, Taiwan, United Kingdom, U.S.A.

PRINTED

IN U.S.A.

Im

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