Honeywell R7500C manual

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Table of contents for the manual

  • Page 1

    R7500C W ide Range Proportional T emperature Controller INST ALLA TION INSTRUCTIONS RC186 They are f astened to the mounting surf ace through the two diagonally opposed mounting holes in the bac k of the case. See Fig. 1. For access to the mounting holes , remov e the cov er from the case by loosening the co ver mounting scre w . The mounting holes[...]

  • Page 2

    R7500C WIDE RANGE PROPOR TIONAL TEMPERA TURE CONTROLLER WIRING All wiring must agree with local electrical codes and ordinances. Since the Controller circuits are rated NEC Class 2, some local codes allow open (no conduit) wiring. Number 18 gage 1.0 mm insulated wire or two- or three- conductor ther mostat cab le is acceptable f or use with these C[...]

  • Page 3

    R7500C WIDE RANGE PR OPOR TIONAL TEMPERA TURE CONTR OLLER 11-12 Vdc + POWER – SUPPLY MODULTROL IV MOTOR BALCO MAIN SENSOR L1 2 BLACK ORANGE ORANGE YELLOW VIOLET BROWN 1 R7500 C R T1 T2 8.2K L2 X-FORMER M7186A1004 M7185G1000 BALCO COMPENSATION SENSOR 1 C AND T2 ARE INTERNALLY CONNECTED. AN 8.2K OHM RESISTOR IS PROVIDED INTERNALLY TO CORRECTLY LOAD[...]

  • Page 4

    R7500C WIDE RANGE PROPOR TIONAL TEMPERA TURE CONTROLLER COMPENSA TION RA TIO ADJUSTMENT Compensation ratio is the number of degrees temper ature change required at the compensation sensor to change the primar y sensor control point one degree F . When a compensation sensor (T2) is used, the compensation ratio adjustment provides a means f or adjust[...]

  • Page 5

    R7500C WIDE RANGE PR OPOR TIONAL TEMPERA TURE CONTROLLER NO TE: 1. T o ensure correct voltage readings in the follo wing tests, a 500-ohm resistor should be substituted for the compensation sensor (if its temperature is not near 75F [24C]) and “comp . ratio” should be set at 20. 2. If the controller output is not connected, wire a 390 ohm “lo[...]

  • Page 6

    Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc. Honeywell Limited-Honeywell Limitée Honeywell Plaza 740 Ellesmere Road P.O. Box 524 Scarborough, Ontario QUALITY IS KEY Minneapolis, MN 55408-0524 M1P 2V9 95-7205 Re v . 10-95 Printed in U.S .A.[...]