Honeywell W7620 User Manual

Honeywell

W7620 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.

SINGLE

W7620 Base Controller provides:

four relay outputs

network communication

T7660 Space Temperature Sensor inputs

W7621 Expansion Input 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)

W7622 Expansion Output Point ditional output point expansion on one board of up to:

three analog outputs

three digital outputs

ZONE CONTROL

Point

Boards provide ad-

Boards

SYSTEM

provide ad-

T7660 Space Temperature Sensor provides up to:

one space temperature input

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

Form Number 63-4224

©Honeywell 1991

SYSTEM DESCRIPTION . . . ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INST~LATION........,..1..........................................

CHECKOUT

. . . . . . . . . . . . .

..1............~...........................11

SPECIFICATIONS. . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

ACCESSORIES . . . . . . . . . . . .

..‘.......................................lS

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NUMBER.

WORLD.

The W7620 new can conveniently monitor and zone equipment.

System features include CNAP (Control Network Automation Protocol) communication, application

flexibility, DDC (Direct Digital Control), network integration, easy installation and programming, and increased

The basic capability to process programs, and communicate along with other devices on the CNAP

The W7620 DDC has a control loop which periodically updates outputs as a given set of algorithms.

Single

Zone Control System is Honeywell’s

line

of single

equipment reliability.

W7620

network.

zone control

Single

I/O

(Input/Output) data,

See W7620 family photo.

Single Zone

function

of a set of measured inputs and

products. The W7620,

control

individual HVAC

Zone

Controller has built-in

run

DDC

Controller is a DDC device.

the

The

advantages of DDC

are:

Control

The W7620 control loops for accurate control of single zone equipment that prevents comfort in the

Single Zone

temperature

zone.

Controller provides sophisticated

droop and provides greater

the RS-485 CNAP network. The CNAP communication to multiple well as to other Module, 47640 NIU or a a PC with ZM7603 Remote Monitoring to the ZM7601 Configuration Tool/ZM7603 Remote Monitoring for a more detailed description.

Through the CNAP network, the controller can be provided with information only, or controllers. ZM7601/ZM7603 software provided for Figure 1.

The W7620 Zone Control System was designed for application flexibility. which is stored in EBPROM and by and be applied in a variety of applications.

network

W7620 Zone

controllers,

software

with information necessary for a group of

with periodic information on any controller data

monitoring, data gathering, or report generating. See

output requirements, the same

such as the

Q7650

PC Interface Card in

specification

specific

Simply

by changing

sheet,

Form 63-4272,

to its controlled

determining the input

W7620 controller can

enables

Controllers as

W7600

Control

software.

can, in turn,

Refer

the

algorithm

zone zone

Maintainability

Use of a single programmed computer reduces requirements for calibration checks because fewer interconnected analog components. Periodic recalibration is automatically

performed.

there

are

Reliability

EEPROM (Electrically Erasable Programma Only Memory) and EPROM Read Only Memory) hold the control program and parameters

eliminating

the

(Erasable Programmable

need

for a

battery.

ble Read

Communlcatlon

Networking controllers together on a using

CNAP software provides information for integration of control functions, monitoring, trending, alarming, and report

generation.

The W7620 stand-alone environment with distributed zone control and

hard-wired time-of-day

applied as part of a

Single Zone

networked

Controller can be applied in a

functionality It can

system via connection

RS-485 network

also be

‘Ike W7620 Baseboard provides input dedicated to the T7660 Space Temperature Sensor (space temperature, remote CNAP communication connections). The baseboard provides four SPST A variety of small point, single zone or heat pump applications

The one AC input, and two voltage for a variety of inputs depending on application. One W7621 input board controller.

setpoint,

W7621

bypass switch with LED feedback, and

only

(Single

Pole, Single Throw) relays.

can

be met by using only the

Input Board

adds two resistive, one digital,

inputs that can

can

added

to the

W7620.

be used

W7620

Zone

63-4224

Figure

1 - CNAP Network Diagram

The W7622 output board has a

depending any type

The W7622 drives any output (for heat, cool, etc.), either digital

relay outputs have both

closed contacts. The

The

‘I7660 Device) that is placed in the

Sensors are

adjustment dial or an occupant override push button with status

LED (Figure 2). The push button allows setting the heating or the control system is in an unoccupied

can be The LED indicates are furnished with an RJ11 connector for local operation of an

S7610 the T7660A-D Space Temperature Sensors Information and

Installation

the model

can

be added to the

analog. Function depends upon application. The

is a platinum RTD (Resistive Temperature

available with or without an

cooliig

used

to initiate a

the

POT (Portable Operator’s Terminal). (See

sheet,

number.

normally open

analog

outputs are 0-10

zone

system to an occupied mode when

continuous unoccupied period.

override

Form

selection

One output board of

W7620

for temperature readings.

status.

These zone sensors

63-4219, for

of outputs

Zone Controller.

and

normally

Vdc.

integral setpoint

mode.

Also, it

details.)

The S7610 means to set, test, and monitor point and parameter values. The POT utilizes the RS-485 CNAP nehvork for communication and connects to cable to an RJ11 jack at

Sensor, or to an RJ11 jack inside The POT network. 63-4225, for information on operation. See Figure 3.

POT

is a hand-held &vice that provides a

the T7660

can

communicate to

See the S7610 Zone

the

controller through a

Zone

Temperature

the

controller

any controller on the

Control

POT Guide,

case.

Form

+ 11 hidden pages

Honeywell W7620 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual