Assessments - 4, GPA: 3.8
(
)
)
|
Facilidade de uso
63-2150—5 2 C7600A SOLID STATE HUNIDITY SENSOR 20 18 16 14 12 10 8 6 4 0 CURRENT IN mA HUMIDITY IN % RH M3130 Fig. 2. C7600A output current vs. relative humidity. 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 the ratings given on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4. Checkout according to instructions provided with the controller before leaving installation. CAUTION Disconnect power before installation to prevent electrical shock or equipment damage. Location When selecting the location, make certain that the humidity sensor is not exposed to rain, snow, or direct sunlight. The C7600A Solid State Humidity Sensor is designed to operate in 500 ft/min minimum airflow. Mounting The C7600A Solid State Humidity Sensor can be mounted in any position; however, the sensor must be installed where it is exposed to freely circulating air, with at least 500 ft/min airflow. Mounting the C7600 Solid State Humidity Sensor Outdoors . Select a location protected from rain, snow or direct sunlight. RH (%) I (mA) 10 18.4 20 16.8 30 15.2 40 13.6 50 12.0 60 10.4 70 8.8 80 7.2 90 5.6 102030 405060 708090100 . Attach the sensor to the wall with two 1/8 in. (3 mm) diameter screws. . Wire as shown in the Wiring section. Installing C7600 Solid State Humidity Sensor in Return Air Duct (See Fig. 3) NOTE: Installers need to supply the following: sheet metal cutter or snips; drill with 1/16 in. (2 mm), 1/8 in. (3 mm) and 1/2 in. (13 mm) bits; screwdrivers; 1/2 in. (13 mm) rubber grommet; eight self-tapping sheet metal screws; and two 1/8 in. (3 mm) by 3/4 in. (19 mm) machine screws with lockwashers and nuts. . Cut a 5 in. (127 mm) by 6 in. (152 mm) rectangular hole in one side of the return air duct. . Center the sensor on a 6 in. (152 mm) by 7 in. (178 mm) piece of sheet metal. Mark locations for mounting screws and for a hole for the control wire. . Drill two 1/8 in. (3 mm) mounting holes for the sensor and one 1/2 in. (13 mm) hole for the control wire. . Drill eight starting holes in the sheet metal rectangle for self-tapping sheet metal screws. . Center sheet metal rectangle over opening in duct so there is a 1 in. (25 mm) overlap on all four sides. Then mark the eight sheetmetal screw locations on the duct. . Drill eight starting holes in the duct for self-tapping sheet metal screws. . Attach sensor to sheet metal rectangle with 1/8 in. (3 mm) by 3/4 in. (19 mm) machine screws, washers and nuts. Attach the machine screws from the outside of the sheet metal to eliminate protrusions and possible sharp edges. . Place a rubber grommet in the 1/2 in. (13 mm) hole in the sheet metal to protect the control wires from abrasions. . Put the control wires through the 1/2 in. (13 mm) hole and wire as shown in the Wiring section. . Attach the sheet metal rectangle to the duct with self- tapping sheet metal screws. Make sure that airflow over the sensor is as shown in Fig. 3. 3 63-2150—5 C7600A SOLID STATE HUMIDITY SENSOR 1 AIR FLOW 3 4 AIR FLOW 2 6 (152) 5 (127) 6 (152) 7 (178) 8 7 9 AIR FLOW AIR FLOW 5,6 10 M5242A Fig. 3. Installing C7600A Solid State Humidity Sensor in return air duct. 63-2150—5 4 C7600A SOLID STATE HUNIDITY SENSOR Wiring Disconnect the power supply before beginning wiring to prevent electrical shock or equipment damage. All wiring must comply with applicable codes and ordinances. Follow the wiring information furnished by the controller manufacturer or refer to Fig. 4 for a typical wiring hookup. Note and follow polarity markings for hookup. OPERATION The C7600A Solid State Humidity Sensor provides a 4 to 20 mA output signal that is inversely proportional to the relative humidity of the return air. The sensing element in the C7600A Solid State Humidity Sensor is a humidity-sensitive polyamide film that changes capacitance with a change in humidity. This change in capacitance is converted by a printed circuit board assembly to an output current between 4 and 20 mA. The output current is used by an analog or a microprocessor-based controller to measure and control humidity. =24 VDC(+) =8 =7 =6 =5 =A COM =20 VDC(+) =4 =3 =2 =1 =A COM =8 =7 =6 =5 =4 =3 =2 =1 =D COM =V1 =V2 =GND 4= 3= 2= 1= GND= V2= V1= 4= 3= 2= 1= A COM= 4= 3= 2= 1= D COM= 8= 7= 6= 5= D COM= DIGITAL OUTPUTS DIGITAL OUTPUTS ANALOG OUTPUTS S7600A 24 VAC OUT DIGITAL INPUTS ANALOG INPUTS ANALOG INPUTS 24 VAC INPUT V2= V1= 24 VAC OUT W7600 + 1 M3128 C7600C RETURN AIR HUMIDITY SENSOR 237 OHM, 1 PERCENT, 1/8 WATT METAL FILM RESISTOR. 1 Fig. 4. Wiring C7600A Solid State Humidity Sensor to W7600. 5 63-2150—5 Home and Building Control Home and Building Control Honeywell Asia Pacific Inc. Honeywell Inc. Honeywell Limited-Honeywell Limitee Room 3213-3225 Honeywell Plaza 155 Gordon Baker Road Sun Hung Kai Centre P.O. Box 524 North York, Ontario No. 30 Harb...