Trane BAYECON355 Series Installation Manual page 11

0 to 100% low leak economizer – downflow
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Table 4. Controller menu structure (continued)
Menu
Parameter
ACT COUNT
ACTUATOR
EXH1 OUT
STATUS
EXH2 OUT
ERV
MECH COOL ON
FAN SPEED
W (HEAT IN)
MAT SET
LOW T LOCK
DRYBLB SET
ENTH CURVE
SETPOINTS
DCV SET
MIN POS
RT-SVN044A-EN
Parameter
Range and
Parameter
Increment
Default Value
(c)
N/A
(c)
N/A
(c)
OFF
OFF
OFF
(c)
0
(c)
N/A
(c)
N/A
(c)
53ºF
(c)
32ºF
(c)
63ºF
(c)
ES3
(c)
1100ppm
increment by 100
(c)
2.8V
Parameter
Recommended
Value
(a)
(b)
1 to 65,535
N/A
OK/Alarm (on
N/A
Alarm menu)
ON/OFF
N/A
ON/OFF
N/A
ON/OFF
N/A
0, 1, or 2
N/A
N/A
LOW or HIGH
ON/OFF
N/A
38 to 70°F;
53ºF
increment by 1
-45 to 80°F;
32ºF
increment by 1
48 to 80°F;
67ºF
increment by 1
ES1, ES2, ES3,
ES3
ES4, or ES5
500 to 2000 ppm
1100 ppm
2.8V/3.2V LO/
2 to 10 Vdc
2.8V HI
E E c c o o n n o o m m i i z z e e r r C C o o n n t t r r o o l l l l e e r r
Notes
Displays number of times actuator has
cycled. 1 Cycle equals the sum of 180°
of movement in any direction.
Displays Error if voltage or torque is
below actuator range.
Output of EXH1 terminal. Displays ON
when damper position reaches
programmed percentage setpoint.
ON = 24 Vac Output; OFF = No
Output.
EXH2 OUT is not available.
ERV is not available.
Displays number of mechanical cooling
stages that are active.
Displays speed of fan on a 2-speed fan
unit.
Displays status of heat on a 2-speed
fan unit.
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 will not be energized
on the controller.
Setpoint determines where the
economizer will assume outdoor air
temperature is good for free cooling;
e.g.; at 63ºF setpoint unit will
economizer at 62ºF and below and not
economize at 64 ºF and above. There
is a a 2ºF deadband.
Enthalpy boundary "curves" for
economizing using single enthalpy.
See
Table 9, p. 17
for description of
enthalpy curves.
Displays ONLY if a CO
sensor is
2
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 CO
sensor is NOT
2
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.
11

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