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Manual Honeywell M8405

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  • Honeywell M8405 - page 1

    PRODUCT DATA 63-2484-2 Solid State Economizer System (CONSISTING OF: C7046C DISCHARGE AIR SENSOR OR C7150B MIXED AIR SENSOR, C7400A SOLID ST A TE ENTHALPY SENSOR OR C7650A SOLID ST A TE TEMPERA TURE SENSOR, M7415 OR M8405 DAMPER ACTUA TORS OR MODULATING DIRECT COUP LED ACTUATORS (MS7505), T6031H THERMOST A T AND W7459 OR W7212 SOLID ST A TE ECON OM ...

  • Honeywell M8405 - page 2

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 2 ORDERING INFORMATION When purchasing replacement and modernizat io n products from your TRADELINE® whol esaler or distributor , refer to the TRADELINE® Catalog or price sheets for complete ordering number . If you have additional questions, need further information, or w oul d like to comment on our pr ...

  • Honeywell M8405 - page 3

    SOLID ST ATE ECONOMIZER SYSTEM 3 63-2484—2 MS7505 Spring Return Dir ect Coupled Actuator The MS7505 Series Spring Return Direct Coupled Actuators (DCA) are control actuators that provide proportionin g control for valves and dampers. They accept a voltage signal from an economizer to position a damper or val ve at any chos en point between fully ...

  • Honeywell M8405 - page 4

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 4 Fig. 2. Approx imate dimension s of C7150B Mixed/ Discharge Air Sensor in in. (mm). Fig. 3. Approximate dimensions of C7400A Solid State Enthalpy Sensor/C765 0A Solid St ate T emperatu re Sensor in in. (mm). M7415A, M8405A Damper Actuators Provides control of economizer systems on HV AC equipment. Actuat ...

  • Honeywell M8405 - page 5

    SOLID ST ATE ECONOMIZER SYSTEM 5 63-2484—2 Shaf t: Single-ended drive shaft with crank arm supplied. Reliability: Full-S troke Cycles: 60 ,000. Repositions: 1 ,500,000. Approvals: Underwriters Laboratory Inc.: Flammability Ratin g: UL94-5V . Component Recognized: File No . E4436, Guide No. XAPX2, V ol. 9, Section 1, 7-25-83. Fig. 4. M7215, M7415A ...

  • Honeywell M8405 - page 6

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 6 Fig. 5. Approx imate dimension s of back mounting br acket for T6031H in in. (mm). W7459A,C Solid State Economizer Logic Module Used with C7400 Sensor or C7650A Sensor and M7415 or M8405 Actuator to proportio n ou tdoor and return air dampers for economizer control in commercial HV AC equipment. Electric ...

  • Honeywell M8405 - page 7

    SOLID ST ATE ECONOMIZER SYSTEM 7 63-2484—2 IMPORT ANT All inputs and outputs must be 24 V ac Class 2. Ambient Ratings: T emperature: -40°F to +149°F (-40°C to +65 °C). Humidity: 5 to 95 percent RH (no ncondensing). Inputs: Enthalpy (C7400) Dry Bulb T emperature (C7650) Discharge Air (C7046) Mixed Air (C7150) DCV Sensor (C7232): 0/2-10 Vdc con ...

  • Honeywell M8405 - page 8

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 8 CAUTION Personal Injury Hazard. Spring-return assembly can rele ase. Leave end covers attached to the motor . Location and Mounting Locate motor as close as possible to the equipment to be controlled. Refer to Fig. 4 for mounting dimensions. 1. Mount motor with the shaft horizontal to ensure maxi- mum li ...

  • Honeywell M8405 - page 9

    SOLID ST ATE ECONOMIZER SYSTEM 9 63-2484—2 T o mount the C7046C Sensor in a junctio n box (see Fig. 1 1): 1. Cut a 1/2 in. (13 mm) hole in the duct or plenum surface at the desired locati on. 2. Remove the center rear kno ckout from the junction box and insert the sensor p robe through the kn ockout with the flange fla t against the junction box. ...

  • Honeywell M8405 - page 10

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 10 IMPORT ANT Failure to follo w these wiring practices can introduce electrical interference (noise) that can cause erratic system operation: a. Keep wiring at least one foot away from large induc- tive loads such as motors, line starters, lighting bal- lasts, and large power distribution panels. b. Shiel ...

  • Honeywell M8405 - page 11

    SOLID ST ATE ECONOMIZER SYSTEM 11 63-2484—2 Wiri ng CAUTION Can Cause Electrical Shoc k or Equipment Damage. Disconnect power supply before connecting wiring. Disconnect the power suppl y before connecting wiring to prevent electrical shock and equipment damage. Al l wiring must comply with applicable local codes and ordin ances. Refer to Fig. 13 ...

  • Honeywell M8405 - page 12

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 12 Fig. 16. Mounting the W7212 module on sheet metal. C7400 Enthalpy Sensor and C7650A T emperature Sensor Location and Mounting Outdoor air sensing: Mount the C7400 Enthalpy Sensor or C7650A T emperature Sensor in any orientation where it is exposed to freely circul ating air but protected from rain, snow ...

  • Honeywell M8405 - page 13

    SOLID ST ATE ECONOMIZER SYSTEM 13 63-2484—2 Fig. 18. Partial psychrometric chart with single C7400A So lid St ate Enthalpy Sensor and W7212 or W745 9 Solid St a te Economizer Logi c Module performanc e curves. Fig. 19. C7400A Sensor output current vs. relative humidity . Fig. 20. C7 650A Solid State T emp erature Sensor output current vs. tempera ...

  • Honeywell M8405 - page 14

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 14 M7415 Damper Actuator Single M7415 Damper Actuato r accepts thermistor sensor input from a C7046A or a C7150B Mixed Air Sensor mounted in discharge or mixed air duct. See Fig. 27. During the occupied perio d, on a call for cooling, when outdoor air temperature or enthalpy conditions are low , the M7415 ...

  • Honeywell M8405 - page 15

    SOLID ST ATE ECONOMIZER SYSTEM 15 63-2484—2 M7415 and M8405 Damper Actuators Adjusting Minimum Position (V entilation) The M7415 Damper Actuator is adj usted for desired minimum position using a Q709 Actuat or Mounted Min imum Position Potentiometer and/or a remote S963B1 136 Manual Potentiometer . The M840 5 Dam per Actuator has an integral thum ...

  • Honeywell M8405 - page 16

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 16 The setpoint scale markin gs, located on the W7459, are A,B,C and D. T urn the setpoi nt potentio mete r fully clockwise to the D setting. The economizer selects the air that has lower enthal py or temperature for co oling; for example, if outdoor air has lower enthalpy or temperature tha n return air , ...

  • Honeywell M8405 - page 17

    SOLID ST ATE ECONOMIZER SYSTEM 17 63-2484—2 OPERATION: W7212 The purpose of the economizer is to use outdoor air for cooling, whenever possible, to reduce compressor opera tion. Power at the N terminal determines the Occupied/Unoccupi ed setting: — W7212: • 24 V ac (Oc cupied). • No power (Unoccup ied). — W7213,W7214: • W7213 (CHANGEOVE ...

  • Honeywell M8405 - page 18

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 18 NOTES: — DCV and Free Cooling have setpoints and LED indications. — For models with a B terminal (W7213): No power to B: cooling mode, free cool enabled. Module follows log ic detailed above. 24V power to B: heating mode, free cool disabled. Actuator drives to mini mum position (closed whe n Unoccup ...

  • Honeywell M8405 - page 19

    SOLID ST ATE ECONOMIZER SYSTEM 19 63-2484—2 7. If all minimum and maximum position adjustments are complete, remove the T -T1 jumper and reconnect the mixed air sensor . EQUATION 1. FORMULA TO AID MINIMUM POSITION ADJUSTMENT. ( T O × OA) +( T R × RA)= T M Where: T O = Out door air temperature OA = Percent of outdoor air T R = Return air tempera ...

  • Honeywell M8405 - page 20

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 20 Fig. 27. M8405A Damper Actuator u sed in two-st age coolin g system with differential enthalpy changeover and W7459C Economizer . L1 (HOT) L2 M8405 T D APPL Y 24V AC T-X FOR MIN POSN T-D FOR MAX POSN FDR FDR FA N FA N DELA Y RELA Y HEA T 1 HEA T 2 COOL 1 COOL 2 HV AC EQUIPMENT TERMINAL STRIP W R POWER S ...

  • Honeywell M8405 - page 21

    SOLID ST ATE ECONOMIZER SYSTEM 21 63-2484—2 Fig. 28. W7459A/C7400 used in two-stage cooling system with single enthalpy changeover and with M7415 Actuator . L1 (HOT) L2 FDR FDR FA N FA N DELA Y RELA Y HEA T 1 HEA T 2 COOL 1 HV AC EQUIPMENT TERMINAL STRIP POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. MOTOR SPRING-RE ...

  • Honeywell M8405 - page 22

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 22 Fig. 29. W7212 used with M7215 Damper Motor an d T7300 Thermostat. POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED T O HANDLE THE EXTRA LOAD OF THE ECONOMIZER AND ACTUA TOR. USE THE SAME TRANSFORMER FOR T7300 AND ECONOMIZER. F ACTORY INST A ...

  • Honeywell M8405 - page 23

    SOLID ST ATE ECONOMIZER SYSTEM 23 63-2484—2 Fig. 30. W7212 used with M7215 Damper Motor an d T7350 Thermostat. POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED T O HANDLE THE EXTRA LOAD OF THE ECONOMIZER AND ACTUA TOR. THE SAME TRANSFORMER CAN BE USED FOR THE THERMOST AT AND ACTUA TOR ...

  • Honeywell M8405 - page 24

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 24 Fig. 31. W7212 used with M7215 Damper Motor and TB7220 or TB8220 Thermostats. POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED T O HANDLE THE EXTRA LOAD OF THE ECONOMIZER AND ACTUA TOR. THE SAME TRANSFORMER CAN BE USED FOR THE THERMOST AT AN ...

  • Honeywell M8405 - page 25

    SOLID ST ATE ECONOMIZER SYSTEM 25 63-2484—2 Fig. 32. W7212A used in single-stage cooling system with single enthalpy chan geover and Honeywell actuator and time clock for oc cup ancy . POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED T O HANDLE THE EXTRA LOAD OF THE ECONOMIZER AND ACT ...

  • Honeywell M8405 - page 26

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 26 Fig. 33. W7212A used in two-stage cooling system with Honeywell Series 72 Actuato r and time clock for occupancy . POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED TO HANDLE THE EXTRA LOAD OF THE ECONOMIZER AND ACTUA TOR. 1S IS AN ELECTRONIC ...

  • Honeywell M8405 - page 27

    SOLID ST ATE ECONOMIZER SYSTEM 27 63-2484—2 Fig. 34. W7212 controlling parallel-wired Honeywe ll Series 72 Actuators and time clock for occupancy . POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE THA T TRANSFORMER IS SIZED TO HANDLE THE LOAD OF ALL ACTUA TORS. USE THE FOLLOWING CONT ACTS INSTEAD OF TIMER FOR T ...

  • Honeywell M8405 - page 28

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 28 Fig. 35. W7213, W7214 cont rolling heat pump system. POWER SUPPL Y . PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. EF AND EF1 ARE DRY CONT ACTS IN THE LOGIC MODULE. F ACTORY INST ALLED 620 OHM, 1 W A TT , 5% RESISTOR SHOULD BE REMOVED ONL Y WHEN A C7400 ENTHALPY SENSOR IS ADDED TO SR AND ...

  • Honeywell M8405 - page 29

    SOLID ST ATE ECONOMIZER SYSTEM 29 63-2484—2 T able 6. T rouble shooting modulating economizer—out door enthalpy above setpoi nt. Conditio n on Logic Mod ule Should Be Condition Not Met 1. Red LED not lighted. 1. If the LED glows, the Logic Module recogni zes conditions are good for free cool- ing. V erify that conditi ons are above the enthalpy ...

  • Honeywell M8405 - page 30

    SOLID S TATE ECONOMIZER SYSTEM 63-2484—2 30 T able 8. T roubleshooting thre e-position eco nomizer—out door enthalpy above setpo int. Condition on Logic Module Should Be Conditions Not Met 1. Red LED not lighted. 1. If the LED glows, the module is in the economizer mode. V erify the conditio ns are above the enthalpy setp oint, see Note 2. Chec ...

  • Honeywell M8405 - page 31

    SOLID ST ATE ECONOMIZER SYSTEM 31 63-2484—2 CHECKOUT AND T R OUBLESHOOTING: W7212 Checkout requires a 9V battery , 620 ohm, 1.2K ohm, 5.6K ohm, and 6.8K ohm resistors. Use T able 10 and Fig. 36 for checkout. CAUTION Equipment Damage Hazard . Excessive force can damage potentiometer controls. Use a small screwdriver when adjusting entha lpy change ...

  • Honeywell M8405 - page 32

    Automation and Co ntrol Solutions Honeywell Internation al Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Dri ve North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9 customer.honeywell.com SOLID S TATE ECONOMIZER SYSTEM ® U.S. Registered T rademark © 2005 Honeywell International I nc. 63-2484—2 M.S. Rev . 08-06 4. DCV ...

Manufacturer Honeywell Category Automobile Parts

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