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Honeywell W7620 User Manual

Single zone and water source heat pump control
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Honeywell
W7620 S I N G L E
ZONE CONTROL SYSTEM
PROVIDES CUSTOMIZED CONTROL OF HVAC
S I N G L E Z O N E E Q U I P M E N T . S P E C I F I C
FEATURES THIS SYSTEM OFFERS INCLUDE:
COMMUNICATION, APPLICATION FLEXIBILITY,
D I R E C T D I G I T A L C O N T R O L , E A S Y
INSTALLATION AND PROGRAMMING, AND
INCREASED EQUIPMENT RELIABILITY.
- four relay outputs
- network communication
-
T7660 Space Temperature Sensor inputs
ditional input point expansion on one board of up
to:
- two resistive inputs
- two digital inputs
- two voltage inputs (one dry contact, one
extended 24 Vac input)
q
W7622 Expansion Output Point Boards provide ad-
ditional output point expansion on one board of
up to:
- three analog outputs
- three digital outputs
-
one space temperature
-
one space temperature &point
-
one override push button/LED indication
Cl Up to four heat/four cool conventional or four-
compressor heat pump
q
Flexible control options:
- analog/humidity
switch
-
packaged or integrated economizer
-
indoor air quality switches
HG/KH
8/91
input
Form N u m b e r 6 3 - 4 2 2 4
©Honeywell
1991

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  Summary of Contents for Honeywell W7620

  • Page 1 Honeywell W7620 S I N G L E ZONE CONTROL SYSTEM PROVIDES CUSTOMIZED CONTROL OF HVAC S I N G L E Z O N E E Q U I P M E N T . S P E C I F I C...
  • Page 2 RESIDENTIAL AND BUILDING CONTROLS SALES REPRESENTATIVE. RESIDENTIAL AND BUILDING CONROLS CUSTOMER SERVICE HONEYWELL INC., 1885 DOUGLAS DRIVE NORTH, MINNEAPOLIS, MINNESOTA 55422, (612) 542-7500. IN CANADA - HONEYWELL LIMITED/HONEYWELL LIMITEE, 740 ELLESMERE ROAD, SC RBOROUGH CANADA M 1 P 2VP. INTERNATIONAL SALES AND SERVICE OFFICES IN ALL PRINCIPAL CITIES OF THE WORLD.
  • Page 3 The W7620 Single Zone Control System is Honeywell’s communication to multiple W7620 Zone Controllers as new l i n e of single zone control products. The W7620, well as to other controllers, such as the W7600 Control can conveniently monitor and control individual HVAC Module, 47640 NIU or a Q7650 PC Interface Card in zone equipment.
  • Page 4 Figure 1 - CNAP Network Diagram...
  • Page 5 One output board of means to set, test, and monitor point and parameter values. any type can be added to the W7620 Zone Controller. The POT utilizes the RS-485 CNAP nehvork for communication and connects to the controller through a The W7622 drives any output (for heat, cool, etc.), either...
  • Page 6 Figure 3 -POT (Portable Operator’s Terminal)
  • Page 7 When this product . . . installing 1. Read these instructions carefully. Failure to follo them could damage the product or cause a hazardous condition. surface-before removing the W7621 or W7622 expansion board from the antistatic bag. 2. Check the ratings given in the SPECIFICATION: Failure to do so might damage the board.
  • Page 8: Pin Connector

    ,&Knockout for l/2 in. conduit fittings. h Double knockout for l/2 or 3/4 in. conduit fittings. Figure 4 - W7620 Mounting 10 PIN CONNECTOR S T A N D O F F H O L E PLASTIC STANDOFF Figure 5 -Mounting Additional Board...
  • Page 9 Power relays can be wired to draw coil Insert the wire in the required terminal location current from separate 24 Vac supply. and tighten screw terminal. The operating voltage range for the W7620 is 20 Figure 6 illustrates the terminal arrangement in the to 30 Vac.
  • Page 10 Example: The following procedure is for Fan (can be any one of the outputs, 1-7, depending on output options s e l e c t e d , see W7620 Single Zone/WSHP Application Guide, Form 63-4220. 1. Display Fan (OUT.) on the S7610 POT or ZM7601/03 software.
  • Page 11 Fahrenheit with another source, such as a (63-4290). thermometer, near the actual sensor. 4. Turn on power and verify that each W7620 has at 2. V e r i f y that the S7610 POT or the least 20 Vac at Terminals TR and TR ZM76Ol/ZM7603 software value reads the expected temperature.
  • Page 12 The W7620 Zone Control System must be earth-grounded side of the transformer and the suspected at each cluster of W7620 controllers (one or mote W7620 grounding plane (usually the controller chassis). controllers powered by a single 24 Vac transformer). Use If one side of the transformer is grounded, No.
  • 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 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 indicating digital response to call...
  • Page 14 Knockout for l/2 in. conduit fittings. Q Double knockout for 1 / 2 or 3/4 in. conduit fittings. Figure 8 - W7620 Dimensions 63-4224...
  • Page 15 Base Unit (with cover) Input Expansion Boards Use with W7459 Economizer Logic Module, modulating spring Damper Actuator...
  • Page 16 ATTN: Technical Editor provide better technical information for you. HONEYWELL MINNEAPOLIS, MN 55408 INTERNATIONAL Sales offices I” all principal cities of the world. Manufacturing Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. PRINTED IN U.S.A.