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Honeywell W7620 manual

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Table of contents for the manual

  • Page 1

    Honeywell W7620 SINGLE ZONE CONTROL SYSTEM PROVIDES CUSTOMIZED CONTROL OF HVAC SINGLE ZONE EQUIPMENT. SPECIFIC FEATURES THIS SYSTEM OFFERS INCLUDE: COMMUNICATION, APPLICATION FLEXIBILITY, DIRECT DIGITAL CONTROL, EASY INSTALLATION AND PROGRAMMING, AND INCREASED EQUIPMENT RELIABILITY. 0 W7620 Base Controller provides: - four relay outputs - network c[...]

  • Page 2

    SYSTEM DESCRIPTION . . . ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INST~LATION........,..1.......................................... 7 CHECKOUT . . . . . . . . . . . . . ..1............~...........................11 SPECIFICATIONS. . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 3

    The W7620 Single Zone Control System is Honeywell’s new line of single zone control products. The W7620, can conveniently monitor and control individual HVAC zone equipment. System features include CNAP (Control Network Automation Protocol) communication, application flexibility, DDC (Direct Digital Control), network integration, easy installatio[...]

  • Page 4

    Figure 1 - CNAP Network Diagram[...]

  • Page 5

    The W7622 output board has a selection of outputs depending on the model number. One output board of any type can be added to the W7620 Zone Controller. The W7622 drives any output (for heat, cool, etc.), either digital or analog. Function depends upon application. The relay outputs have both normally open and normally closed contacts. The analog o[...]

  • Page 6

    Figure 3 -POT (Portable Operator’s Terminal)[...]

  • Page 7

    When installing this product . . . 1. Read these instructions carefully. Failure to follo them could damage the product or cause a hazardous condition. 2. Check the ratings given in the SPECIFICATION: section and on the product to make sure that the product is suitable for the application. 3. The installer must be a trained, experienced service or [...]

  • Page 8

    ,&Knockout for l/2 in. conduit fittings. h Double knockout for l/2 or 3/4 in. conduit fittings. Figure 4 - W7620 Mounting STANDOFF HOLE PLASTIC STANDOFF 10 PIN CONNECTOR Figure 5 -Mounting Additional Board 8[...]

  • Page 9

    r I If securing screws are not used, the expansion board will not be grounded. This will result in improper operation or damage to the device. NOTE I The W7620 Single Zone Application Guide, Form 63-4220, provides information on corresponding terminal designations to function connections. Verify that the wiring was done according to the wiring diag[...]

  • Page 10

    T and Al). See the T7660 Space Temperature Sensor specification sheet, Form 63-4219, for the correct temperature to measure resistance value cross-reference. 4. If long sensor wiring is used, m- resistance supplied to the W7620 by both the temperature sensor and the leadwire for greater accuracy. Output Point Test Procedures Testing outputs consist[...]

  • Page 11

    The following steps for complete checkout and testing of a W7620 are described fully below. The procedures are as follows: 1. Check W7620 installation and wiring, including power to the W7620. 2. Start-up W7620 (connect S7610 POT or ZM7601/ZM7603 software) and assign a network node address and application (even when using device in a nonnetworked a[...]

  • Page 12

    2. To disable a controller, remove both legs of I or removing connections from Terminals TR and TR earth-ground. the AC power. Removing only one leg may prevent other controllers on the same transformer from communicating on the CNAP network. I L The W7620 Zone Control System must be earth-grounded at each cluster of W7620 controllers (one or mote [...]

  • Page 13

    Electrical Ratings Supply Voltage 20-30 Vac, 50 or 60 HZ System Current Draw 8.5 VA maximum at 30 Vac, 50 or 60 H Z Inputs: Resistive 29104370 ohm (-40 to 265°F temperature range with platinum sensors) Voltage 0-10 Vdc with 2 Vdc overrange Digital j External contact (switch, relay or transistor) Into 15 Vdc, 15 AC Input Up to three 24 Vac source i[...]

  • Page 14

    bl Knockout for l/2 in. conduit fittings. Q Double knockout for 1 /2 or 3/4 in. conduit fittings. Figure 8 - W7620 Dimensions 14 63-4224[...]

  • Page 15

    Base Unit (with cover) Input Expansion Boards Use with W7459 Economizer Logic Module, modulating spring Damper Actuator[...]

  • Page 16

    Canadian EMI This digital apparatus does not exceed the Class A Le prdsent apparelI “wn&-lque “&net pas de btults limits for radio noise emission fmm digital apparatus rad4c&ctiques depassant les llmltes appllcables BUX set out I” the Radio I- Regulations Of the apparelIs nutirlques de la Classe A praadtes dens Canadian Department[...]