Honeywell Home H4600A User manual

PRODUCT DATA
68-0064-02
H4600A,B; H6600B
HUMIDITY CONTROLLERS
APPLICATION
These humidity controllers provide automatic switching
control of humidification or dehumidification equipment.
They are typically used in appliance units such as portable
humidifiers and dehumidifiers, furnace powered
humidifiers, fan ventilation units, etc.
FEATURE
• Long nylon ribbon sensing element provides high
driving force to assure reliable operation, even under
changing ambient temperature conditions.
• Sturdy steel case has corrosion resistant plating.
• Phenolic housing encloses the snapacting switch
with 1/4 in. quick-connect terminals. Switch rated
for line voltage and pilot operation.
• Shaft for adjusting the control point located on either
the end or face of device.
• Positive ON and OFF setting positions permit manual
operation of the controlled equipment.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. There-
fore, this unit may not match the listed specifica-
tions 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.
Models:
Electrical Ratings (A at 50/60 Hz):
Set Point Adjustment:
External flat shaft on end or face of control.
H4600A End Shaft H4600B Face Shaft
Model System Control Scale Range (RH)
H4600A Dehumidifier 20-80%
H4600B Humidifier 10-60%
H6600B Humidifier 10-60%
H4600A H4600B
120 Vac 240 Vac 120 Vac 240 Vac
Full Load 10.0 5.0 4.4 2.2
Locked Rotor 45.0 22.5 26.4 13.2
Resistive 12.0 6.0 12.0 6.0
Pilot Duty 50 VA at 24 Vac to 240 Vac
H6600B
120 Vac 240 Vac
Full Load N.O. to C 4.4 2.2
Full Load N.C. to C 3.0 1.5
Locked Rotor N.O. to C 26.4 13.2
Locked Rotor N.C. to C 18.0 9.0
Resistive N.O. to C 12.0 6.0
Resistive N.C. to C 3.0 1.5
Pilot Duty 50 VA at 24 Vac to 240 Vac

H4600A,B; H6600B
68-0064—02 2
Switching:
Enclosed, snap acting.
H4600A-SPST makes on RH increase
H4600B-SPST makes on RH decrease
H6600B-SPDT makes N.C. to C on RH increase, N.O. to C
on RH decrease.
Type of Terminal Connection
1/4 in. quick-connect.
Sensing Element:
Nylon ribbon.
Differential:
Nonadjustable, 4 to 6 percent RH.
Operating Temperature Range:
50 F to 125 F [10 C to 52 C].
Shipping and Storage Temperature:
Minus 30 F to plus 150 F [minus 34 C to plus 66 C].
Mounting Means:
Metal case and cover, each having two mounting holes that
will accept No. 6 sheetmetal screws or self-tapping
screws. Screw length limited on end shaft model. (See
INSTALLATION information.)
Dimensions:
See Fig. 1.
Underwriters Laboratories Inc. Component Recognized:
File No. E 4436, Guide No. XA PX2.
Canadian Standards Association Component Recog-
nized:
File No. LR60804-1, Class No. 4813 02.
Fig. 1. Installation dimensions in in. [mm in brackets] for H4600, H6600.
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous 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 tech-
nician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Disconnect power supply before beginning
installation to prevent electrical shock or
equipment damage.

H4600A,B; H6600B
368-0064—02
Mounting
The H4600, H6600 mount in the intake airstream of a
humidifier or dehumidifier. Do not mount in outlet air.
Mount to surface with two No. 6 sheetmetal screws or self-
tapping screws through two holes in case. For end shaft
models, mounting screws cannot extend more than 1/4 in.
beyond the mounting surface of the controller.
Wiring
All wiring must comply with local codes and ordinances.
Fig. 2. Typical Wiring Diagram for H4600A.
Fig. 3. Typical Wiring Diagram for H4600B with Single
Speed Fan Motor.
Fig. 4. H6600B Internal Schematic.
OPERATION
H4600A Dehumidifier Controllers
The H4600A switch makes 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 dehumidifier.
Turn the control knob clockwise to the setting stop to
put the dehumidifier in the ON position. Set to the OFF
position by turning the control knob counterclockwise
to the stop.
Fig. 5. H4600A stationary scaleplate layout. Index mark
on knob rotates with adjustment shaft.

H4600A,B; H6600B
© 2021 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
www.resideo.com
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
68-0064—02 M.S. Rev. 10-21 | Printed in United States
H4600B Humidity Controllers
The H4600B switch makes contact on a humidity fall to
the set point minus the differential. In most humidifier
systems, the furnace fan must be operating before
humidifier starts. An increase in humidity to the set point
breaks the switch contacts. (In room humidifiers, the fan
and humidifier operate together.)
Turn control knob clockwise to the stop for ON
position. Set to the OFF position by turning the control
knob counterclockwise to the stop.
H6600B SPDT Controllers
The H6600B controllers are used in humidity control
systems requiring spdt switching. The switch makes
terminals N.C. and C. on a rise in humidity and terminals
C. and N.O. on a fall in humidity.
Turning the control knob counterclockwise to the stop
will cause the switch (terminals C. and N.C.) to make,
turning on the dehumidifier. Turning the switch clockwise
to the stop will cause the switch (terminals C. to N.O.)
to make, turning on the humidifier.
Fig. 6. H4600B and H6600B stationary scaleplate
layout. Index mark on knob rotates with adjustment
shaft.
CHECKOUT
Place the system in operation and observe through at
least one complete cycle to make certain all components
are functioning properly.