Honeywell JADE W7220 Installation Instructions And Operators Manual page 21

Economizer module
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Parameter
SETPOINTS MAT SET
LOW T LOCK
DRYBLB SET
DRYBLB DIF
Available firmware
1.15, June 2018, and
later.
ENTH CURVE
DCV SET
MIN POS
VENTMAX
VENTMIN
ERV OAT SP
Table 5. Menu Structure
Parameter
Default
Value
53ºF
38 to 70 ºF;
increment by
1
32ºF
-45 to 80 ºF;
increment by
1
63ºF
48 to 80 ºF;
increment by
1
0ºF
0 to 6ºF;
increment by
2
ES3
ES1, ES2,
ES3,
ES4, or ES5
1100ppm
500 to 2000
ppm
increment by
100
2.8 V
2 to 10 Vdc
2.8 V
2 to 10 Vdc
100 to 9990
cfm
increment by
10
2 to 10 Vdc
2.25 V
100 to 9990
cfm
increment by
10
2 to 10 Vdc
d
32ºF
0 to 50 ºF;
increment by
1
a
. (Continued)
Parameter
Range and
b
Increment
The economizer will modulate the OA damper to maintain the mixed
air temperature at the setpoint.
Setpoint determines outdoor temperature when the mechanical
cooling cannot be turned on. Commonly referred to as the Compressor
lockout. At or below the setpoint the Y1-O and
Y2-O will not be energized on the controller.
Dry bulb setpoint will only appear if using dry bulb change over.
Setpoint determines where the economizer will assume outdoor air
temperature is good for free cooling; e.g.; at 63 ºF setpoint unit will
economizer at 62 ºF and below and not economize at
64 ºF and above. There is a a 2 ºF deadband.
Drybulb Differential will only show if using dual drybulb, i.e., when an
outdoor air temperature sensor C7250 is attached to OAT terminals,
and a C7400S sensor is wired to S-Bus and configured for RAT (return
air). Free cooling will be assumed whenever OA Temp is below RAT
minus this drybulb differential setting.
ES curve will only appear if using enthalpy changeover.
Enthalpy boundary "curves" for economizing using single enthalpy.
See page 22 for description of enthalpy curves.
Displays ONLY if a CO2 sensor is connected.
Setpoint for Demand Control Ventilation of space. Above the setpoint,
the OA dampers will modulate open to bring in additional OA to
maintain a space ppm level below the setpoint.
Displays ONLY if a CO2 sensor is NOT connected.
With 2-speed fan units MIN POS L (low speed fan) and MIN POS H
(high speed fan) settings are required. Default for MIN POS L is 3.2V
and MIN POS H is 2.8V.
Displays only if a CO2 sensor is connected.
Used for Vbz (ventilation max cfm) setpoint. VENTMAX is the same
setting as MIN POS would be if you did not have the CO2 sensor.
If OA, MA RA and CO2 sensors are connected and DCV CAL ENABLE is
set to AUTO mode, the OA dampers are controlled by CFM and displays
from 100 to 9990 cfm.
With 2-speed fan units VENTMAX L (low speed fan) and VENTMAX H
(high speed fan) settings are required. Default for VENTMAX L is 3.2V
and VENTMAX H is 2.8V.
2 to 10 Vdc
Displays only if CO2 sensor is connected.
Used for Va (ventilation min cfm) setpoint. This is the ventilation
requirement for less than maximum occupancy of the space.
If OA, MA RA and CO2 sensors are connected and DCV CAL ENABLE is
set to AUTO mode, the OA dampers are controlled by CFM and displays
from 100 to 9990 cfm.
With 2-speed fan units VENTMIN L (low speed fan) and VENTMIN H
(high speed fan) settings are required. Default for VENTMIN L is 2.5V
and VENTMIN H is 2.25V.
Only when AUX1 O = ERV
21
JADE™ ECONOMIZER MODULE
Notes
63-2700—11

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