20
Since 1965
MicroMetl
Table 11 ─ Menu Structure (cont)*
Menu Parameter
Parameter
Default
Value
Parameter
Range and Increment
b
Notes
SYSTEM
SETUP
INSTALL 01/01/10 Display order = MM/DD/YY
Setting order = DD, MM, then YY.
UNITS DEG
o
F °F or °C Sets economizer controller in degrees Fahrenheit or Celsius.
EQUIPMENT CONV Conventional or HP Always set to CONV even for heat pump
AUX2 I W1 Always set to W1 Always set to W1
FAN TYPE 2 speed 1 speed / 2 speed Sets the economizer controller for operation of 1 speed or 2 speed indoor fan
system. Note: Default settings may vary.
FAN CFM 5000cfm 100 to 15000 cfm;
increment by 100
UNIT DESIGN AIRFLOW (CFM)
Enter ONLY if using DCVCAL ENA = AUTO
AUX1 OUT NONE NONE
ERV
EXH2
SYS
Select OUTPUT for AUX1 O relay
NONE = not congured (output is not used)
ERV = Energy Recovery Ventilator
d
EXH2 = second damper position relay closure for second exhaust
fan
SYS = use output as an FDD remote alarm signal
OCC INPUT INPUT or ALWAYS Always set to INPUT
FACTORY DEFAULT NO NO or YES Resets all set points to factory defaults when set to YES. LCD will briey ash
YES and change to NO but all parameters will change to factory default values.
ADVANCED
SETUP
MA LO SET 45°F
(7°C)
35° to 55°F;
(2° to 12°C)
Incremented by 1°
MIXED AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if
temperature falls below setup value)
FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active
CLO = closed
MIN = MIN POS or VENTMIN
CO2 ZERO 0ppm 0 to 500 ppm:
Increment by 10
CO2 ppm level to match CO2 sensor start level.
CO2 SPAN 2000ppm 1000 to 3000 ppm;
Increment by 50
CO2 ppm span to match CO2 sensor.
STG3 DLY 2.0h 0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 h or OFF
COOLING STAGE 3 DELAY
Delay after stage 2 for cool has been active. Turns on 2nd stage of cooling
when economizer is 1st stage and mechanical cooling is 2nd
SD DMPR POS CLO CLO or OPEN Function NOT AVAILABLE with 2‒speed mode
DCVCAL ENA MAN manual or auto Turns on the DCV automatic control of the dampers. Resets ventilation. For
single speed units only.
MATTCAL 0.0°F
(or C)
+/ ---2.5°F
(+/ ---1.4°C)
MIXED AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration mixed air
temperature (MAT) sensor
OA T CAL 0.0°F
(or C)
+/ ---2.5°F
(+/ ---1.4°C)
OUTSIDE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration outside air
temperature (OAT) sensor
OA H CAL 0% RH +/ ---10% RH OUTSIDE AIR HUMIDITY CALIBRATION
Allows for the operator to adjust for an out of calibration outside air enthalpy
sensor
RA T CAL 0.0°F
(or C)
+/ ---2.5°F
(+/ ---1.4°C)
RETURN AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration return air
temperature (RA) sensor
RA H CAL 0% RH +/ ---10% RH RETURN AIR HUMIDITY CALIBRATION
Allows for the operator to adjust for an out of calibration return air enthalpy
sensor
DA T CAL 0.0°F
(or C)
+/ ---2.5°F
(+/ ---1.4°C)
DISCHARGE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration discharge air
temperature (DAT) sensor
2SP FAN DELAY 5 Minutes 0 to 20 minutes in
1 minute increments
TIME DELAY ON 2nd STAGE ECONOMIZING
While in the Economizing mode, this is the delay between thermostat Y2
call and Y1---O output to mechanical cooling stage, to allow high speed fan
operation to attempt to cool space rst.
* Table 11 illustrates the complete hierarchy. your menu parameters may be different depending on your configuration.
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