Honeywell H46C-F Owner's manual

Honeywell
THESE HUMIDITY CONTROLLERS PRO-
VIDE AUTOMATIC CONTROL OF A HU-
MIDIFIER OR A DEHUMIDIFIER FOR DE-
HUMIDIFICATION AND MILDEW CON-
TROL IN AIR CONDITIONING SYSTEMS.
ALL MODELS ARE SUPPLIED WITH COV-
ER AND CONTROL KNOB FOR WALL
MOUNTING.
❑ Cover of impact-resistant, molded
plastic.
❑ Sensing element of thin, moisture sensi-
tive nylon ribbon provides reliable opera-
tion even when ambient temperature con-
ditions 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.
Form Number 60-2097—2
REV. 1O-87O
@Honeywell Inc. 1987

.
r’MpORTANT-
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.
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
H46D,E.
ADDITIONAL FEATURES:
● H46E includes interrupter plug. ● TRADELINE
pack; with cross reference label and
special instruction sheet.
STANDARD MODELS
TYPE OF
SYSTEM CONTROL SCALE RANGE
(RH) TERMINAL CONNECTION
HUMIDIFIER LEADWIRE
DEHUMIDIFIER
(makes at set point OR ELEC- SCREW
MODELS
(makes at set point) less differential) 20-80%
10-60% TRIC CORD TYPE
H46Ca
x
—
x
—
x
—
H46Da
—
x
—
x x
—
H46Eb
x
—
x
—
Note b
—
H46Fb
—
x.x
Note b
—
alncludes adapter plate for vertical switch box mounting.
blncludes 6 ft [1.8 m] electric cord. H46E,F have interrupter plug.
(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 SPECIFY—
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 LIMITEE, 740 ELLESMERE ROAD, SCARBOROUGH, ONTARIO
Ml P 2V9. INTERNATIONAL SALES AND SERVICE OFFICES IN ALL PRINCIPAL CITIES OF THE WORLD.
2

ELECTRICAL RATING (A at 50 or 60 Hz):
H46C,E—
H46D,F—
H46D,Fa H46D
120 Vac 240 Vac
Full Load 4.4 2.2
Locked Rotor
26.4 13.2
Resistive
12.0
6.0
Pilot Duty 50 VA at 24 Vac
aH46F 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.
_2&
~74,61 _
16
15
+
‘n
[37.
h
+—
7
T
~2J
32
[118.3]
3:
J
[82.6]
A
: [13.5]
‘Ir
; [6.4
I
3194A
FIG. lANSTALLATION DIMENSIONS IN in. [mm II
BRACKETS] FOR H46C,D.
1
-i
1
[12.7]
,
II
—
- 1:
7
[34.9]
II
3193A
IG. 2-INSTALLATION DIMENSIONS IN in. [mm IN
BRACKETS] FOR H46E,F.
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 in-
stallation to prevent electrical shock or equipment
damage.
d
MOUNTING
Follow manufacturer’s instructions, if available. Other-
wise 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
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 system switch in COOL and selecting appropriate set
setting and let the air conditioner run. By applying points for example, 85° F [29° C] and 50 percent RH,
either a low voltage thermostat in combination with an either device will be able to control the air conditioning
H46C Dehumidistat or a W884E Comfort Center, mildew equipment. This independent operation will allow the
can be reliably prevented and air conditioning energy higher temperature set point and still prevent mildew by
use can be oDtimized. The dehumidistat and thermostat controlling humidity. For wiring diagrams See Figs. 3
should be
w“ired in parallel such that by leaving the and 4. -
Q539A T87F INTERNAL SCHEMATIC
~—––-.
I
/+\ FILTER
@ L,~~T
I
I
I
I
I
HEAT OFF COOL
HEAT oFF COOL
i J$ &v&
1 )
q, A “ ‘----: “ ,
\
~,
B o w
Y
II
I
I
.
4 I
HEATING ‘
RELAY
OR
VALVE
COIL
I
?
COOLING FAN
CONTACTOR
RELAY
COIL
~ ~:~&::VERLOADPROTECTIONA NOD ISCONNECTMEANSAS
COIL
~ HEATING OAMPERMOTOR{IF”SEO,.
1
~CLOGGED FIL7ERSWITCH OR COOLING PANEL CONNECTION.
r’+
A
10,763
FIG. 3—TYPICAL PARALLEL WIRING DIAGRAM OF H46C WITH T67F/Q539A COMBINATION FOR DEHUMIDIFI-
CATION AND MILDEW CONTROL.

Q539A T87F INTERNAL SCHEMATIC
~—–––-
1
.- —.-———
T87F 1
;
/ \ FILTER
@ L,(-jl+T
I_’
R
HEATING
RELAY
H
OR
VALVE
COIL
I
t 1 i 1
~ ~~&~~RLOAO PrOteCtiOn ANfJ015c0NNEcTh4EAN5.S
~ I+EAT,NG DAMPER MOTOR {,FUSEO,.
~ CLOGGED FILTER S.WITCH OR COOLING PANEL CONNECTION.
f?
A
10,830
—.— —--—.—
FIG. 4—TYPICAL SERIES WIRING DIAGRAM OF H46C WITH T67F/Q539A COMBINATION FOR DEHUMIDIFI-
CATION AND MILDEW CONTROL.
1
[
L
(1
H460, F
NTROL CONTROLLER
w
T
EMP
HUMIDITY
IISE FALL
Q@
FAN MOTOR
HUMIDIFIER
(’J
A
POWER ,
SUPPLY
I
&OVIOEDISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRE”.
,,,2.
I
IG. 5—TYPICAL WIRING DIAGRAMS FOR H46D,F
SINGLE-SPEED FAN MOTOR.
HUM IOITY H46C,E
~~-~EN
~ POWER SUPPLY, PROVlDEDlSCOt4NECT MEANS ANC10VERLOAD
PROTECTION AS REQUI RED.
2569C
FIG. 6—TYPICAL WIRING DIAGRAM FOR H46C,E.
A
A
A
L
COOLING
RELAY
R8230
FAN CONTROL
L4068
1
J+ -
+F –
.
FAN MOTOR
I
,AJ
PROVIOE DISCONNECT MEANS ANO
OVERLOAD PROTECTION AS REQUIRE”. r
SWITCH
S688A -3-
TO ENSURE HUMIDIFIER OPERATION
IN WINTER WHEN THERMOSTAT SUB.
BASE FAN SWITCH Is AT ‘oON,< OR ‘*AUTO:,
ADD SAIL SWITCH TO SYSTEM
AS SHOWN.
TO PREVENT HUMIDIFIER OPERATION
IN SUMMER, TURN H460 KNOB
TO
., OFF’, PoSITION,
A
H46D
HUMIOITY
CONTROL
Q
HUMIDIFIER
MOTOR
2,,4
IG. 7—TYPICAL WIRING DIAGRAM FOR H46D IN
FORCED AIR SYSTEM WITH 2-SPEED FAN
MOTOR.
5

H46D
UMIDIFIER
w- ‘“i’ r
5WL+ E%@
~ F&~~~l~~S;ONNECT MEAN, AND CIVERLOAD PROTECTION
251 IB
FIG. 8—TYPICAL WIRING DIAGRAM FOR H48D USED
WITH A SWITCHING RELAY.
A
&EH”M,D,FIEFI PLUG ON H46E;H”M,D,F,ER PLuG oN “46,
~7Ci DEHUMIDIFIER ON H46E;TOH”M,D,F,ERON Ii,,,.
12,444
FIG. 9-H46E,F INTERRUPTER PLUG CONNECTIONS.
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
stop the de-
humidifier.
Turn the control knob clockwise
m to the setting
stop to put the dehumidifier in the ON position. Set to
the OFF position by turning the control knob counter-
clockwise
n to the stop.
H46D & F HUMIDITY
CONTROLLERS
The H46D and F switches make contact on a
humidity fall to the set point minus the differential. In
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
n to the stop for
ON position. Set to the OFF position by turning the
control knob counterclockwise
n to the stop.
CHECKOUT
Place the system in operation and observe through at
least one complete cycle to make certain that all com-
ponents are functioning properly.
Honeywell Inc.
International Sales Offices in all principal cities of the world. Manufacturing in
1885 Douglas Drive N. Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands,
Spain, Taiwan, United Kingdom, U.S.A.
Im
e
Golden Vallay, MN 55422 -4SS8 PRINTED IN U.S.A. QUU2TYLSKEY