Honeywell C7600B Operation manual

PRODUCT DATA
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved 63-2166—8
C7600B, H7655A
Solid State Humidity Sensors
APPLICATION
C7600B, H7655A Solid State Humidity Sensors senses the
relative humidity level of an area and is used with any
controller capable of processing a 0-10 Vdc or 2-10 Vdc
signal.
FEATURES
• Long-lasting solid state sensing element is accurate
and stable over time.
• Enclosed in rugged, wall-mounted plastic case.
• Vents on top and sides of cover allow air flow to
humidity sensing element.
• Compact size and lightweight construction provide
easy mounting.
• C7600B provides 2-10 Vdc output directly proportional
to relative humidity and can be used with the H775
Humidity Controller.
• H7655A provides 0-10 Vdc output directly proportional
to relative humidity and can be used with the T7350
Temperature/Humidity Controller.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
an individual unit may not exactly match the listed
specifications. 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: C7600B, H7655A Solid State Humidity Sensors.
Provide a dc voltage output in direct proportion to the
change in relative humidity.
Dimensions: See Fig. 1.
Case: Rugged, lightweight, compact plastic, easy to install.
Electrical Ratings:
Input: 16-40 Vdc or 16-30 Vac.
Output:
C7600B: 2-10 Vdc voltage signal; increases from 2 to 10
Vdc as humidity increases. Output voltage is directly
proportional to relative humidity increase. See Fig. 2.
H7665A: 0-10 Vdc voltage signal; increases from 0 to 10
Vdc as humidity increases. Output voltage is directly
proportional to relative humidity increase. See Fig. 3.
Maximum Power Consumption: 0.3 VA.
Mounting: Wall mount (directly to wall or standard outlet box).
Ambient Temperature Ranges:
Operating: 32°F to 125°F (0°C to 52°C).
Shipping: -40°F to +150°F (-40°C to +66°C).

C7600B, H7655A SOLID STATE HUMIDITY SENSORS
63-2166—8 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
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 Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service 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.
SPECIFICATIONS (continued from page 1)
Humidity Range: 10 to 90 percent RH, noncondensing.
Humidity Accuracy:
From 30 to 70% RH: ±5 percent RH.
From 10 to 90% RH: ±7 percent RH.
Fig. 1. C7600B, H7665A dimensions in in. (mm).
Fig. 2. C7600B nominal output voltage
vs. relative humidity.
Fig. 3. H7655A nominal output voltage
vs. relative humidity.
3-1/4
(83)
3-13/16
(97)
4-5/8
(117)
1-13/16 (46)
3-5/8 (92)
7/8 (22)
1-1/16 (27)
2-7/8 (73)
3/8
(10)
M17720
M8810A
% RH
10
20
30
40
50
60
70
80
90
Vdc
2.8
3.6
4.4
5.2
6.0
6.8
7.6
8.4
9.2
VOLTAGE OUTPUT (VDC)
HUMIDITY IN PERCENT RH
7
6
5
4
3
2
8
9
10
020 40 60 80 100
NOMINAL
M22589
% RH
0
10
20
30
40
50
60
70
80
90
100
Vdc
0
1
2
3
4
5
6
7
8
9
10
VOLTAGE OUTPUT (VDC)
HUMIDITY IN PERCENT RH
7
6
5
4
3
2
1
0
8
9
10
020 40 60 80 100
NOMINAL

C7600B, H7655A SOLID STATE HUMIDITY SENSORS
3 63-2166—8
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check ratings given in instructions and on the product to
ensure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
Location
The sensor cay be installed directly on a wall or standard wall
outlet box.
The sensor should be located away from traffic areas, on an
inside wall, at least 3 ft (1m) from an outside wall and 54 in.
(1.4m) from the floor.
Mounting
1. Loosen the cover locking screw and remove the cover.
2. Run wire to the selected location; thread wire through
the semicircular hole in the wallplate; and make
connections to the sensor (see the Wiring section).
3. Four mounting screws are provided, two self-tapping
type for wall mounting and two for outlet box mounting.
Select the proper screws for the application.
4. If air drafts occur through the wall opening, eliminate
with suitable material.
5. Fasten the sensor on the wall or outlet box with screws
through the wallplate mounting holes. See Fig. 4.
6. Replace the cover and tighten the cover locking screw.
Fig. 4. Mounting the sensor on an outlet box.
Operation
C7600B
The sensor provides a 2 to 10 Vdc output signal directly
proportional to the humidity of the air where the unit is
mounted.
H7665A
The sensor provides a 0 to 10 Vdc output signal directly
proportional to the humidity of the air where the unit is
mounted.
WIRING
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
IMPORTANT
All wiring must agree with applicable codes,
ordinances and regulations.
See Fig. 5 through 9 for wiring details. Wire input power
(16 to 40 Vdc or 16 to 30 Vac) to V+ and GND terminals.
Connect sensor output (OUT) and GND to a controller analog
input as shown in Fig. 5 through 9.
Fig. 5. C7600B, H7655A typical wiring.
Fig. 6. C7600B wiring to W7620.
THERMOSTAT
MOUNTING
TAB SLOT (2)
MOUNTING
TAB
(2 INSIDE
COVER)
MOUNTING
SCREW (2)
COVER
LOCKING
SCREW
OUTLET BOX
M17719
WALLPLATE
HUMIDITY
SENSOR
~V+ GND OUT
CONTROLLER
ANALOG
INPUT
SIG
GND
+
–
M2025E
24 Vac
120 Vac
L1
L2
1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
C7600B
-V+
GND
OUT
M8809B
24 Vac
120 Vac
V1 (ANALOG INPUT)
COMM
W7620 (W7600)
L1
L2 1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.

63-2166—8 B.B. Rev. 11-04 www.honeywell.com
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
C7600B, H7655A SOLID STATE HUMIDITY SENSORS
Fig. 7. C7600B wiring to H775A. Fig. 8. C7600B wiring to H775B-E in two-sensor system
with C7600C.
Fig. 9. Humidity Sensor (0-10 Vdc output) wiring with T7350
(use with RH/Temperature combination T7350 units only).
C7600B
-V+
GND
OUT
M5232B
L1 L2
24 Vac
123456
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
H775A HUMIDITY
CONTROLLER
24 Vac
1
1
C7600B
C7600C
-V+
GND
OUT
M5231B
L1
L2
+
-
24 Vac
12345 678
H775B -E
HUMIDITY CONTROLLER
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
1
24 Vac
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD.
HEAT/COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY-INSTALLED JUMPER.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
HC AND HP PROVIDE 24 VAC TO THE HUMIDITY SENSOR.
1
M22529
2
3
2
3
4
5
5
RCX
T7350
SUBBASE
W1 G
T7770 REMOTE SENSOR
Y1
W3/Y4 Y3 W2 Y2
AUXRH
T5 T6 T7 T4 T3
DISCHARGE
AIR
SENSOR
OUTDOOR
AIR
SENSOR
MOTION
SENSOR
HUMIDITY SENSOR
M
OSOS ASAS
MHC HP
HS
Gnd Vin
(Vac)
Vo
(0-10 Vdc)
1
4
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 1
123456789
FAN
RELAY
ECONOMIZER
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 3
COMPRESSOR
CONTACTOR 4
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