JADE™ ECONOMIZER MODULE
63-2700—01 18
CHECKOUT
Inspect all wiring connections at the Economizer module’s
terminals, and verify compliance with the installation wiring
diagrams.
For checkout, review the Status of each configured parameter
and perform the Checkout tests.
NOTE: See “Interface Overview” on page 11. for information
about menu navigation and use of the keypad.
Electrical Shock Hazard.
Can cause severe injury, death or property damage.
Disconnect power supply before beginning wiring or
making wiring connections, to prevent electrical shock
or equipment damage.
If any wiring changes are required, first be sure to
remove power from the Economizer module before
starting work. Pay particular attention to verifying the
power connection (24 Vac).
Power Up
After the module is mounted and wired, apply power.
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.
Initial Menu Display
On initial start up, Honeywell displays on the first line and
Economizer W7220 on the second line. After a brief pause,
the revision of the software appears on the first line and the
second line will be blank.
Power Loss (Outage or Brownout)
All setpoints and advanced settings are restored
a
after any
power loss or interruption.
NOTE: If power goes below 18 Vac, the W7220 controller
module assumes a power loss and the 5 minute
power up delay will become functional when power
returns above 18 Vac.
Status
Use the Status menu (see Table 8) to check the parameter
values for the various devices and sensors configured.
NOTE: See “Interface Overview” on page 11. for information
about menu navigation and use of the keypad.
a
All settings are stored in non-volatile flash memory.
Table 8. Status Menu.
Menu Parameter
Parameter
Default
Value
Parameter
Range and Increment Notes
STATUS 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 1
st
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.
HEAT PUMP
n/a
a
COOL
HEAT
Displays COOL or HEAT when system is set to heat pump
(non-conventional)
COOL Y1-IN OFF ON/OFF Y1-I signal from space thermostat or unitary controller for
cooling stage 1.
ON = 24 Vac on term Y1-I
OFF = 0 Vac on term Y1-I
COOL Y1-OUT OFF ON/OFF Cool Stage 1 Relay Output to stage 1 mechanical cooling
(Y1-OUT terminal).
COOL Y2-IN OFF ON/OFF Y2-I signal from space thermostat or unitary controller for
second stage cooling.
ON = 24 Vac on term Y2-I
OFF = 0 Vac on term Y2-I
COOL Y2-OUT OFF ON/OFF Cool Stage 2 Relay Output to mechanical cooling (Y2-
OUT terminal).
MA TEMP _ _._ ºF 0 to 140 ºF Displays value of measured mixed air from MAT sensor.
Displays --.- if not connected, short, or out- of-range.
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