Section 11 - W7220 JADE™ Economizer Module
129 Honeywell Economizers 63-8594-02
W7220 (JADE™) Economizer Controller Used with
Honeywell Prestige
©
IAQ 2.0 Thermostat
The JADE™ controller is a digital unit with
economizing, demand control ventilation, and
auto calibration strategies used to provide
energy savings and comfort for the occupants
of small commercial buildings.
JADE™ automatically recognizes the
following components that are wired to it:
• Outdoor enthalpy or dry bulb
• CO2 for demand control ventilation
• Mixed air for supply air comfort control
• Actuators to control the dampers
After the first 60 minutes of power on, JADE™
will change from a “setup” mode to an
“operation” mode and will control the
ventilation and “free cooling” to the building.
Alarm Mode for Failed
Components on the JADE™
economizer system
If a sensor or actuator fails to respond to
JADE™ during the operation mode, the
JADE™ controller has the ability to send a 24
Vac signal, communicating that there is an
alarm in the system. This is accomplished by
programming the AUX1 O (out) terminal to
“SYS” in the System Setup Menu on the
JADE™ controller.
The building operator is able to address the
alarm in three ways:
• Connect a light or audio alarm to the AUX1 O
out to turn on a visual or audible alarm in the
space, where a building operator will notice
there is an alarm on the system
• Connect JADE™ to a W7220-PCMOD tool in
the mechanical room, using the two-wire
communication terminals (s-bus) and a
personal computer to monitor the system
• Use a Prestige
©
IAQ 2.0 thermostat to alarm
the occupants that there is a system alarm
The options of connecting a visual or audio
alarm to the SYS output when an alarm occurs
would normally not be used in an occupied
space; these types of alarm systems would be
in a warehouse or computer lab.
Using the W7220-PCMOD tool to monitor the
occupancy, damper position and status of the
sensors in the system allows the building
operator to keep a constant or periodic audit
record of the economizer system. The
PCMOD tool is connected to the JADE™
controller via two non-polarity wires and to a
personal computer via USB cable to log the
selected data.
A Prestige
©
IAQ 2.0 thermostat can be used in
the system alone or in conjunction with the
W7220- PCMOD tool, to alert building
occupants when there is an alarm in the
economizer system.
You will need the following components:
• W7220A1000 JADE™ Economizer (plus
sensors and actuator(s)
• R8222N1011 DPDT Relay
• THX9421R5013 Prestige
©
IAQ 2.0 2-wire
Thermostat
• THM5421R1013 Equipment Interface
Module
• Prestige
©
IAQ 2.0 Thermostat and
Equipment Interface Module can be
purchased in a kit YTHX9421R5051
To program the Prestige
©
IAQ 2.0 thermostat
for JADE™ controller alarms:
1. Power thermostat > press Menu > press
Installer options > input password > press
Create Setup > select options through set
up step 6000.
NOTE: The password is the date code located
on the back of the thermostat. The
date code can also be found in Menu
> Equipment Status.
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