17
NOTES:
1. Table 9 illustrates the complete hierarchy. Menu parameters may
be different depending on configuration. For example, none of the
DCV parameters appear for a system that does not have a DCV
(CO
2
) sensor.
2. When values are displayed, pressing and holding the
▲
or
▼
button causes the display to automatically increment.
3. ERV Operation: When in Cooling mode AND the conditions are
NOT OK for economizing - the ERV terminal will be energized. In
the Heating mode the ERV terminal will be energized when the OA
is below the ERV OAT set point in the set point menu.
ALARMS(_)
Alarms display only when they are active. The menu title “ALARMS(_)” includes the number of active alarms in parentheses ( ). When using
SYLK bus sensors, “SYLK” will appear on the screen, and when using 20k OA temperature sensors, “SENS T” will appear on the screen
MA T SENS ERR
n/a
n/a
MIXED AIR TEMPERATURE SENSOR ERROR
Mixed air sensor has failed or become disconnected - check wiring then replace
sensor if the alarm continues.
CO2 SENS ERR
n/a
n/a
CO
2
SENSOR ERROR
CO
2
sensor has failed, gone out of range or become disconnected - check wiring,
then replace sensor if the alarm continues.
OA SENS T ERR
n/a
n/a
OUTSIDE AIR TEMPERATURE SENSOR ERROR
Outdoor-air temperature sensor has failed or become disconnected - check wiring
(OAT sensor connected at input terminals OAT), then replace if the alarm continues.
OA SYLK SENS ERR
n/a
n/a
OUTSIDE AIR ENTHALPY SENSOR ERROR
OAT sensor connected on S-bus.
DA T SENS ERR
n/a
n/a
DISCHARGE AIR TEMPERATURE SENSOR ERROR
SYS ALARM
n/a
n/a
When AUX1-O is set to SYS and there is any alarm (e.g., failed sensors, etc.), the
AUX1-O terminal has 24 vac out.
ACT UNDER V
n/a
n/a
ACTUATOR VOLTAGE LOW
Voltage received by Actuator is below expected range.
ACT OVER V
n/a
n/a
ACTUATOR VOLTAGE HIGH
Voltage received by Actuator is over expected range.
ACT STALLED
n/a
n/a
ACTUATOR STALLED
Actuator stopped before achieving commanded position.
Table 9 — Menu Structure
1
(cont)
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
2
NOTES
LEGEND
n/a
— Not Applicable
DCV
— Demand Controlled Ventilation
ERV
— Energy Recovery Ventilation
HP
— Heat Pump
LC
— Liquid Crystal
LCD
— Liquid Crystal Display
MA
— Mixed Air
MAT
— Mixed Air Temperature Sensor
O/A
— Outdoor Air
OAT
— Outdoor Air Temperature Sensor
OCC
— Occupied
R/A
— Return Air
RAT
— Return Air Temperature
RH
— Relative Humidity
RTU
— Rooftop Unit
