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Economizer Controller
Table 4.
Controller menu structure (continued)
Menu
Parameter
SETPOINTS
EXH2 SET
INSTALL(c)
UNITS
DEG(c)
EQUIPMENT(c)
AUX2
I(c)
SYSTEM
FAN
SPEED(c)
SETUP
FAN
CFM(c)
AUX1 OUT
OCC(c)
FACTORY
DEFAULT(c)
MA LO
SET(c)
FREEZE
POS(c)
CO
ZERO(c)
2
ADVANCED
SETUP
CO
SPAN(c)
2
STG3 DLY
16
Parameter
Parameter
Default
Range and
(a)
Value
Increment
0 to 100%;
75%
increment by 1
1/1/2011
ºF
°F or °C
CONV
CONV
HP
Shutdown (SD)
Heat (W1)
N/A
HP(O)
HP(B)
1 speed/
1 speed
2 speed
100 to 15000
cfm;
5000cfm
increment by
100
NONE
ERV
NONE
EXH2
SYS
INPUT or
INPUT
ALWAYS
NO
NO or YES
35 to 55°F;
45ºF
increment by 1°F
CLO
CLO
MIN
0 to 500 ppm;
0ppm
increment by 10
1000 to 3000
2000ppm
ppm;
increment by 50
0 min, 5 min, 15
min, then 15
2.0h
min intervals.
Up to 4h or OFF
Parameter
Recommended
(b)
Value
N/A
Present date
Setting order = DD, MM, then YY
Sets economizer controller in degrees Fahrenheit or
ºF
CONV
SD = Enables configuration of shutdown (default);
W = Informs controller that system is in heating
NOTE: If using 2-speed fan mode, you must
Heat (W1)
program CONV mode for W. Shutdown is not
available in the two-speed fan mode
HP(O) = energize heat pump on Cool (default);
HP(B) = energize heat pump on Heat
Sets economizer controller for operation of 1 speed
See unit
or 2 speed supply fan. The controller does not
nameplate:
control the fan but positions the OA and RA dampers
Digit 15 = 0 or 1 - 1
to the heating or cooling mode. See
speed;
Digit 15 = 7 or 9 - 2
NOTE: 2-speed fan option also needs Heat (W1)
speed
This is the capacity of the RTU. The value is found
5000cfm
in the Unit Catalog. The cfm of the fan is only used
AUX1 OUT is a programmable output used for
NONE
When using a setback thermostat with occupancy
out (24 Vac), the 24 Vac is input "INPUT" to the OCC
ALWAYS
terminal. If no occupancy output from the
thermostat then change program to "ALWAYS" OR
add a jumper from terminal R to OCC terminal
Resets all set points to factory defaults when set to
NO
YES. LCD will briefly flash YES and change to NO but
all parameters will change to factory default values
Temp to activate Freeze Protection (close damper or
45ºF
modulate to MIN POS if temp falls below set value)
Damper position when freeze protection is active
CLO
CO
ppm level to match CO
2
0ppm
10 Vdc CO
CO
ppm span to match CO
2
sensor output would be 500 CO
2000ppm
span. 0-10 Vdc CO
Delay after stage 2 for cool has been active. Turns
on 2nd stage of mechanical cooling when
economizer is 1st stage call and mechanical cooling
2.0h
is 2nd stage call. Allows three stages of cooling, 1
economizer and 2 mechanical. OFF = no Stage 3
Notes
EXH2 SET is not available
Display order = MM/DD/YY
Celsius
CONV = conventional
HP is not available
In CONV mode:
mode
In HP O/B mode:
page 23 for modes and position
programmed in AUX 2 In
with DCV CAL ENABLE AUO
System Alarm output
(closed or MIN POS)
sensor start level. 0-
2
sensors require CO2 ZERO to be 400
2
sensor; e.g.; 500-1500
2
zero and 1000 CO
2
sensors require CO
2
2
1600
cooling
ACC-SVN203C-EN
2
SPAN to be
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