Product Overview

ManualsBrandsHoneywell ManualsDampersJADE Economizer Systems - Enthalpy w/ Communicating 27 lb-in DCA

PRODUCT DATA

63-2700-01

E4436

JADE™ Economizer Module

(MODEL W7220)

PRODUCT DESCRIPTION

The JADE™ Economizer System is an expandable

economizer control system, which includes a W7220

Economizer Module (controller) with an LCD and keypad. The

W7220 can be configured with optional sensors.

The W7220 Economizer Module can be used as a stand-

alone economizer module wired directly to a commercial set

back space thermostat and sensors to provide outside air dry-

bulb economizer control.

The W7220 Economizer Module can be connected to optional

Sylk Bus sensors for single or differential economizer control.

The W7220 Economizer Module provides power and

communications on the Sylk Bus for the Sylk Bus sensors.

The W7220 Economizer Module automatically detects

sensors by polling the Sylk Bus to determine which sensors

are present. If a sensor loses communications after it has

been detected, the W7220 Economizer indicates a device fail

error on its LCD.

System Components

The JADE™ Economizer System includes an Economizer

Module, 20k mixed air sensor, damper actuator, an optional

sensor, and either a 20k outdoor air temperature sensor

or Sylk Bus sensors for measuring outside air and return air

enthalpy, temperature, and humidity.

Economizer Module

This is the core of the JADE™ Economizer System and

includes the user interface for the system. The W7220

Economizer Module provides the basic inputs and outputs to

provide simple economizer control. When used with the

optional Sylk Bus sensors, the Economizer Module provides

more advanced economizer functionality.

Sylk Bus Sensors (optional)

The Sylk Bus Sensor is a combination temperature and

humidity sensor which is powered by and communicates on

the Sylk Bus. Up to three sensors may be configured with the

JADE™ Economizer Module.

Sensor (optional)

A CO

sensor (non-communicating or non-Sylk Bus) can be

added for Demand Control Ventilation (DCV).

Contents

Product Description .......................................................... 1

Specifications ................................................................... 2

Before Installation ............................................................. 3

Installation and Setup ....................................................... 3

Mounting ........................................................................... 3

Wiring ............................................................................... 4

Wiring Application Examples ............................................ 7

Interface Overview ........................................................... 11

Setup and Configuration ................................................... 15

Checkout .......................................................................... 18

Troubleshooting ................................................................ 20

Summary of content (20 pages)

PAGE 1
JADE™ Economizer Module (MODEL W7220) PRODUCT DATA The W7220 Economizer Module automatically detects sensors by polling the Sylk Bus to determine which sensors are present. If a sensor loses communications after it has been detected, the W7220 Economizer indicates a device fail error on its LCD.
PAGE 2
JADE™ ECONOMIZER MODULE SPECIFICATIONS Outputs Actuator signal: 2-10 Vdc; minimum actuator impedance is 2k ohm W7220A Economizer Module The module is designed for use with any Honeywell 2 to 10 Vdc or Honeywell Sylkbus communicating actuator. The module includes terminals for a CO2 sensor, Mixed Air sensor, and an Outdoor Dry Bulb sensor. Enthalpy and other options are available with Sylk Bus sensors.
PAGE 3
JADE™ ECONOMIZER MODULE BEFORE INSTALLATION MOUNTING Review the “Specifications” on page 2 before installing the The JADE™ Economizer System. This section describes the mounting procedures for the JADE™ Economizer module and the sensors. When Installing This Product Economizer Module Location and Mounting 1. 2. 3. 4. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
PAGE 4
JADE™ ECONOMIZER MODULE WIRING Sensor Mounting The sensors can be mounted directly on to the sheet metal of unit or can be mounted in the air stream using the duct mounting kit. All wiring must comply with applicable electrical codes and ordinances, or as specified on installation wiring diagrams. Module wiring in the field is terminated to the four screw terminal blocks located on the left and right sides.
PAGE 5
JADE™ ECONOMIZER MODULE Table 1. Economizer Module - Left hand terminal blocks. 1. STRIP 1/2 IN. (13 MM) FROM WIRES TO BE ATTACHED AT 1/2 (13) ONE TERMINAL. Label Type Description Top Left Terminal Block 2. TWIST WIRES TOGETHER WITH PLIERS (A MINIMUM OF THREE TURNS).
PAGE 6
JADE™ ECONOMIZER MODULE Sylk Bus Sensor Wiring Use Fig. 6 and Table 3 to locate the wiring terminals for each Sylk Bus sensor. Use Fig. 6 and Table 4 to set the DIP switches for the desired use of the sensor. DIP SWITCH LABEL DIP SWITCHES (3) SYLK BUS TERMINALS (1 AND 2) SYLK BUS 2 PIN “EURO” CONNECTOR M32271 Fig. 6. Sylk Bus sensor DIP switches. Table 3. SYLK Bus Sensor Wiring Terminations.
PAGE 7
JADE™ ECONOMIZER MODULE WIRING APPLICATION EXAMPLES Stand-alone Economizer This section describes the wiring configurations for the JADE™ Economizer system. The configurations are: — “Stand-alone Economizer” — “Economizer with Sylk Bus Sensors” on page 9 A stand-alone Economizer is directly wired to sensors, actuators, thermostat, and mechanical controls in the roof top unit. It does not require Sylk Bus communications. The most basic configuration is the stand-alone Economizer (see Fig. 7 and Fig.
PAGE 8
JADE™ ECONOMIZER MODULE 1 MA TEMP SENSOR 20K NTC ROOF TOP UNIT W7220 ECONOMIZER CONTROLLER MODULE N MA MA OAT OAT OA TEMP SENSOR 20K NTC CO2 SENSOR 2-10 VDC (OPTIONAL) G W1 Y1 O/B Y2 W2 SD-O/B OCC E-GND AUX Y2I IAQ (2-10V) IAQ COM IAQ 24V ACT (2-10V) ACT COM ACT 24V Y2O Y1I Y1O C R 24 VAC 2 3 MS7503 (OPTIONAL COMMUNICATING DCA) 1 NOTE THAT THE C7250 20K NTC SENSOR CAN BE MOUNTED IN THE OAT ONLY IN THIS CONFIGURATION.
PAGE 9
JADE™ ECONOMIZER MODULE Economizer with Sylk Bus Sensors A standalone economizer with Sylk Bus sensors has additional sensors attached using Sylk Bus communications (see Fig. 9 and Fig. 10 on page 10). The Sylk Bus reduces wiring requirements while providing additional functionality.
PAGE 10
JADE™ ECONOMIZER MODULE 1 MA TEMP SENSOR 20K NTC ROOF TOP UNIT W7220 ECONOMIZER CONTROLLER MODULE O/B Y1 N MA MA W2 SD-O/B OCC E-GND S-BUS S-BUS CO2 SENSOR 2-10 VDC (OPTIONAL) G W1 Y2 AUX Y2I IAQ (2-10V) IAQ COM IAQ 24V ACT (2-10V) ACT COM ACT 24V Y2O Y1I Y1O C R MS7503 24 VAC 2 3 MS7503 (OPTIONAL COMMUNICATING DCA) THERMOSTAT OUTSIDE AIR TEMP/HUMIDITY (ENTHALPY) SYLKBUS SENSOR 1 DISCHARGE AIR TEMP/HUMIDITY (ENTHALPY) SYLKBUS SENSOR 1 IN THIS CONFIGURATION, THE MAT IS REQUIRED AND AN
PAGE 11
JADE™ ECONOMIZER MODULE INTERFACE OVERVIEW Using the Keypad with Settings and Parameters This section describes how to use the Economizer’s user interface for: • Keypad and menu navigation • Settings and parameter changes • Menu structure and selection To use the keypad when working with Setpoints, System and Advanced Settings, Checkout tests, and Alarms: • Navigate to the desired menu. • Press the ↵ button (Enter) to display the first item in the currently displayed menu.
PAGE 12
JADE™ ECONOMIZER MODULE Table 5. Menu Structurea. Menu STATUS 63-2700—01 Parameter Parameter Parameter Default Value Range and Incrementb Notes ECON AVAIL NO YES/NO YES = economizing available; the system can use outside air for free cooling when required. ECONOMIZING NO YES/NO YES = outside air being used for 1st stage cooling. OCCUPIED NO YES/NO YES = OCC signal received from space thermostat or unitary controller. YES = 24 Vac on terminal OCC No = 0 Vac on terminal OCC.
PAGE 13
JADE™ ECONOMIZER MODULE Table 5. Menu Structurea. (Continued) Menu Parameter Notes 53ºF 38 to 65 ºF; increment by 1 Setpoint determines where the economizer will modulate the OA damper to maintain the mixed air temperature. LOW T LOCK 32ºF -45 to 80 ºF; increment by 1 Setpoint determines outdoor temperature when the mechanical cooling cannot be turned on. Commonly referred to as the Compressor lockout.
PAGE 14
JADE™ ECONOMIZER MODULE Table 5. Menu Structurea. (Continued) Menu Parameter Parameter Parameter Default Value Range and Incrementb Notes 45ºF 35 to 55 ºF; increment by 1º Temp to activate Freeze Protection (close damper and alarm if temp falls below setup value) FREEZE POS CLO CLO MIN Damper position when freeze protection is active (closed or MIN POS). CO2 ZERO 0ppm 0 to 500 ppm; increment by 10 CO2 ppm level to match CO2 sensor start level.
PAGE 15
JADE™ ECONOMIZER MODULE SETUP AND CONFIGURATION Time-out and Screensaver Before being placed into service, the JADE™ Economizer module must be setup and configured for the installed system. When no buttons have been pressed for 10 minutes, the LCD displays a screen saver, which cycles through the Status items. Each Status items displays in turn and cycles to the next item after 5 seconds: IMPORTANT During setup, the Economizer module is live at all times.
PAGE 16
JADE™ ECONOMIZER MODULE To make a parameter or setpoint change: 1. Use the  and  buttons to move to the desired menu. 2. Press the ↵ button (Enter) to display to the first parameter. 3. Use the  and  buttons to move to the desired parameter. 4. Press the ↵ button (Enter) to select the parameter and display its value. 5. Use the  and  buttons to change or increase/ decrease the parameter value. 6. 7. 8. 9. Press the ↵ button (Enter) to store the new value for the parameter. CHANGE STORED displays.
PAGE 17
JADE™ ECONOMIZER MODULE Table 7. Setup and Setpoint Menus. (Continued) Menu Parameter a Parameter Range and Increment Notes CLO CLO OPN Indicates shutdown signal from space thermostat or unitary controller. When controller receives 24 Vac input on the SD terminal in conventional mode, the OA damper will open if programmed for OPN and OA damper will close if programmed for CLO. All other controls, e.g., fans, etc. will shut off.
PAGE 18
JADE™ ECONOMIZER MODULE CHECKOUT Power Up Delay Upon power up (or after a power outage or brownout), the W7220 controller module begins a 5 minute power up delay before enabling mechanical cooling. Inspect all wiring connections at the Economizer module’s terminals, and verify compliance with the installation wiring diagrams. Initial Menu Display For checkout, review the Status of each configured parameter and perform the Checkout tests.
PAGE 19
JADE™ ECONOMIZER MODULE Table 8. Status Menu. (Continued) Menu Parameter Parameter Default Parameter Value Range and Increment Notes STATUS (continued) DA TEMP _ _._ ºF 0 to 140 ºF Displays when Discharge Air Sylk Bus sensor is connected and displays measured discharge air temperature. Displays --.-°F if sensor sends invalid value, if not connected, short or out-of-range. OA TEMP _ _._ ºF -40 to 140 ºF Displays measured value of outdoor air temperature.
PAGE 20
JADE™ ECONOMIZER MODULE a ERV Operation: When in Cooling mode AND the conditions are NOT OK for economizing - the ERV terminal will be energized. In the Heating mode the ERV terminal will be energized when the OA is below the ERV OAT setpoint in the setpoint menu. You can also navigate to the Alarms menu at any time. Table 10. Alarms Menu. Menu ALARMS(_) Alarm MA T SENS ERR CO2 SENS ERR CAUTION Equipment damage may result.