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Honeywell Design and Application User Manual

Honeywell Design and Application
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Section 11 - W7220 JADE™ Economizer Module
117 Honeywell Economizers 63-8594-02
Fig. 11.
Menu Parameter
Param-
eter
Default
Value
Parameter
Range and
increments
Notes
STATUS IN CO2 _ _ _
ppm
0 to 2000
(3500) ppm
Displays value of measured CO2 from CO2
sensor. Invalid if not connected, short or out-of-
range. May be adjusted in Advanced menu by
Zero offset and Span
DCV STATUS n/a ON/OFF Displays ON if above setpoint and OFF if below
setpoint, and ONLY if a CO2 sensor is connected.
DAMPER OUT 2.0V 2.0 to 10.0 V
Displays output position to the damper actuator.
ACT POS n/a 0 to 100% Displays actual position of actuator.
ACT COUNT n/a 1 to 65,535 Displays number of times actuator has cycled. 1
Cycle equals the sum of 180° of movement in any
direction.
ACTUATOR n/a OK/Alarm
(on Alarm
menu)
Displays Error if voltage or torque is below
actuator range
EXH1 OUT OFF ON/OFF Output of EXH1 terminal. ON = 24 Vac Output;
OFF = No Output.
EXH2 OUT OFF ON/OFF Output of AUX1 O terminal Displays ON when
damper position reaches programmed percentage
setpoint ON = 24 Vac Output, OFF = No Output;
displays only if AUX1 O = EXH2
ERV OFF ON/OFF Output of AUX1 O terminal, ON = 24 Vac Output,
OFF = No Output; displays only if AUX1 O = ERV
MECH COOL ON 0 0, 1, or 2 Displays stage of mechanical cooling that is
active.
FAN SPEED n/a LOW or
HIGH
Displays speed of fan on a 2-speed fan unit
W (HEAT IN) n/a ON/OFF Displays status of heat on a 2-speed fan unit.
SET-
POINTS
MAT SET 53ºF 38 to 70 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.
DRYBLB SET 63ºF 48 to 80 ºF;
increment by
1
Setpoint determines where the economizer will
assume outdoor air temperature is good for free
cooling; e.g.; at 63 ºF unit will economizer at 62 ºF
and below and not economize at 64 ºF and above.
There is a a 2 ºF deadband.
Table 3. Menu Structure

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Honeywell Design and Application Specifications

General IconGeneral
BrandHoneywell
ModelDesign and Application
CategoryController
LanguageEnglish

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