Instruction/ maintenance manual of the product H7655B Honeywell
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INSTALLATION INSTRUCTIONS 63-2579—3 H7625B; H7635B,C; H7655B Duct-Mount and Outdoor-Mount Humidity/Temperature Sensors APPLICATION The H7625B, H763 5B, H7655B Duct-M ount and H7635C Outdoor-Mount Hu midity/T emperatur e Sensors are universal Relative Humidity transmitters that can be powered with eit her a +18 to 36 Vdc or 24 V ac supply .
H7625B; H7635B,C ; H7655B DUCT-MOUNT AND OUTDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 63-2579—3 2 Outdoor Mounting The H7635C senses out door air h umidity an d temperat ure. Mount this control where it ca n sense average o utdoor air humidity and tempera ture.
H7625B; H7635B,C; H7655B DUCT-MOUNT AND OU TDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 3 63-2579—3 WIRING For voltage outpu t, shielded cable (16-22 AWG) should be used. For curren t output, either shiel ded cable or twisted p air (16-22 A WG) can be used.
H7625B; H7635B,C ; H7655B DUCT-MOUNT AND OUTDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 63-2579—3 4 Fig. 4. T ypical wiring diagram for 5-wi re temperature /humidity sen sor with Vdc outp ut (used with the XL15 A controller).
H7625B; H7635B,C; H7655B DUCT-MOUNT AND OU TDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 5 63-2579—3 CHECKOUT CAUTION Equipment Damag e Hazard. Can short elec tric circui try . • Never connec t 120 V ac to the transduc er . • Connect only DC vol tage to a transdu cer intended for DC supply .
H7625B; H7635B,C ; H7655B DUCT-MOUNT AND OUTDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 63-2579—3 6 APPENDIX RH Test and Configuration DIP Switch Settings (Table 3) IMPORTANT • Only adj ust these s witches f or trouble shooting o r recalibrating th e sensor.
H7625B; H7635B,C; H7655B DUCT-MOUNT AND OU TDOOR-MOUNT HUMIDITY/T EMPERATURE SENSORS 7 63-2579—3 CALIBRATION All transducers are factory calib rated to me et/exceed published specifications. Field adju st ment should not be necessa ry. IMPORTANT • Do not verify comparative RH with a sling psychrometer.
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