Economizer Controller
ACC-SVN203C-EN
21
Powered Exhaust
To configure the LLE controller, set EXH1 SET in the
SETPOINTS menu.
CO
2
Sensor
This optional sensor can be added for Demand Control
Ventilation (DCV) functionality. To configure the JADE
controller, set the following parameters:
SETPOINTS Menu:
DCV SET = desired CO
2
ppm to start DCV
VENTMAX = desired maximum position w/DCV and
occupied status
VENTMIN = desired minimum position w/DCV and
occupied status
ADVANCED SETUP Menu:
CO
2
ZERO = set to detector's start level
CO
2
SPAN = detector's max level minus start level
Attach the sensor to the CO
2
and “R” terminals (at
customer connections).
Note:
When using any 0-10 Vdc CO
2
sensor with the JADE
you will need to set CO
2
ZERO to 400 ppm and the
CO
2
SPAN to 1600 ppm in the ADVANCED SETUP
menu.
Occupancy Sensor
A customer-supplied occupancy sensor can also be added
to provide damper control based on occupied/unoccupied
conditions. To configure the JADE controller, set:
SYSTEM SETUP menu: OCC = INPUT
Attach the occupancy sensor to the OCC SENSOR wire and
“R” terminal (at customer connections). The occupancy
sensor must utilize a normally open contact for proper
operation.
If an occupancy sensor is not used, another option to
controlling occupied and unoccupied status is to use the
'G' input (fan is running). Connect the G input to the OCC
SENSOR wire (at customer connections). The controller
will then operate in the occupied mode every time the
indoor fan is running.
Checkout
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
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.
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
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
All setpoints and advanced settings are restored after any
power loss or interruption.
Note:
If power goes below 18 Vac, the 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
) to check the
parameter values for the various devices and sensors
configured.
Note:
“Controller User Interface and Keypad,” p. 12
”
for information about menu navigation and use of
the keypad.