Controls, Start-Up, Operation, Service and ... - Climayoreo

EDT Low Alert Limit/Occ (SA.L.O) — If the space temperature
is below the configurable occupied evaporator discharge
temperature (EDT) Low Alert Limit (SA.L.O), then Alert 302
will be generated and cooling operation will be stopped but
heating operation will continue. The alert will automatically
reset.
EDT High Alert Limit/Occ (SA.H.O) — If the space temperature
is above the configurable occupied EDT High Alert Limit
(SA.H.O), then Alert 303 will be generated and heating operation
will be stopped but cooling operation will continue. The
alert will automatically reset.
EDT Low Alert Limit/Unocc (SA.L.U) — If the space temperature
is below the configurable unoccupied EDT Low Alert
Limit (SA.L.U), then Alert 302 will be generated and cooling
operation will be stopped but heating operation will continue.
The alert will automatically reset.
EDT High Alert Limit/Unocc (SA.H.U) — If the space temperature
is above the configurable unoccupied EDT High Alert
Limit (SA.H.U), then Alert 303 will be generated and heating
operation will be stopped but cooling operation will continue.
The alert will automatically reset.
RAT Low Alert Limit/Occ (RA.L.O) — If the return-air temperature
is below the configurable occupied RAT Low Alert
Limit (RA.L.O), then Alert 304 will be generated and internal
routines will be modified. Unit operation will continue but
VAV heating operation will be disabled. The alert will automatically
reset.
RAT High Alert Limit/Occ (RA.H.O) — If the return-air
temperature is above the configurable occupied RAT High
Alert Limit (RA.H.O), then Alert 305 will be generated and
operation will continue. The alert will automatically reset.
RAT Low Alert Limit/Unocc (RA.L.U) — If the return-air
temperature is below the configurable unoccupied RAT Low
Alert Limit (RA.L.U), then Alert 304 will be generated. Unit
operation will continue but VAV heating operation will be disabled.
The alert will automatically reset.
RAT High Alert Limit/Unocc (RA.H.U) — If the return-air
temperature is above the configurable unoccupied RAT High
Alert Limit (RA.H.U), then Alert 305 will be generated. Operation
will continue. The alert will automatically reset.
OAT Low Alert Limit (OAT.L) — If the outside-air temperature
measured by the OAT thermistor is below the configurable
OAT Low Alert Limit (OAT.L) then alert T316 will be
generated.
OAT High Alert Limit (OAT.H) — If the outside-air temperature
measured by the OAT thermistor is above the configurable
OAT High Alert Limit (OAT.H) then alert T317 will be
generated.
Table 61 — CCN Configuration
84
RARH Low Alert Limit (R.RH.L) — If the unit is configured
to use a return air relative humidity sensor (ConfigurationUNITSENSRRH.S),
and the measured level is
below the configurable RH Low Alert Limit (R.RH.L), then
Alert 308 will occur. The unit will continue to run and the alert
will automatically reset.
RARH High Alert Limit (R.RH.H) — If the unit is configured
to use a return air relative humidity sensor (ConfigurationUNITSENSRRH.S),
and the measured level is
above the configurable RARH High Alert Limit (R.RH.H),
then Alert 309 will occur. The unit will continue to run and the
alert will automatically reset.
OARH Low Alert Limit (O.RH.L) — If the unit is configured
to use an outdoor air relative humidity sensor (ConfigurationECONORH.S)
and the measured level is below the
configurable OARH Low Alert Limit (O.RH.L), then economizer
operation will be disabled. The unit will continue to run
and the alert will automatically reset.
OARH High Alert Limit (O.RH.H) — If the unit is configured
to use a return air relative humidity sensor (ConfigurationECONORH.S)
and the measured level is above the
configurable OARH High Alert Limit (O.RH.H), then economizer
operation will be disabled. The unit will continue to run
and the alert will automatically reset.
Supply Duct Pressure Low Alert Limit (SP.L) — If the unit
is a VAV unit with a supply duct pressure sensor and the measured
supply duct static pressure is below the configurable SP
Low Alert Limit (DP.L), then Alert 310 will occur. The unit
will continue to run and the alert will automatically reset.
Supply Duct Pressure High Alert Limit (SP.H) — If the unit
is a VAV unit with a supply duct pressure sensor and the measured
supply duct static pressure is above the configurable SP
High Alert Limit (SP.H), then Alert 311 will occur. The unit
will continue to run and the alert will automatically reset.
Building Pressure Low Alert Limit (BP.L) — If the unit is
configured to use modulating power exhaust then a building
static pressure limit can be configured using the BP Low Alert
Limit (BP.L). If the measured pressure is below the limit then
Alert 312 will occur.
Building Pressure High Alert Limit (BP.H) — If the unit is
configured to use modulating power exhaust then a building
static pressure limit can be configured using the BP Hi Alert
Limit (BP.H). If the measured pressure is above the limit, then
Alert 313 will occur.
Indoor Air Quality High Alert Limit (IAQ.H) — If the unit
is configured to use a CO 2 sensor and the level is above the
configurable IAQ High Alert Limit (IAQ.H) then the alert will
occur. The unit will continue to run and the alert will automatically
reset.
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT
CCN CCN CONFIGURATION
CCNA CCN Address 1 - 239 CCNADD 1
CCNB CCN Bus Number 0 - 239 CCNBUS 0
BAUD CCN Baud Rate 1 - 5 CCNBAUDD 3
BROD CCN BROADCST DEFINITIONS
TM.DT CCN Time/Date Broadcast ON/OFF CCNBC On
OAT.B CCN OAT Broadcast ON/OFF OATBC Off
ORH.B CCN OARH Broadcast ON/OFF OARHBC Off
OAQ.B CCN OAQ Broadcast ON/OFF OAQBC Off
G.S.B Global Schedule Broadcst ON/OFF GSBC Off
B.ACK CCN Broadcast Ack'er ON/OFF CCNBCACK Off
SC.OV CCN SCHEDULES-OVERRIDES
SCH.N Schedule Number 0 - 99 SCHEDNUM 1
HOL.T Accept Global Holidays? YES/NO HOLIDAYT No
O.T.L. Override Time Limit 0 - 4 HRS OTL 1
OV.EX Timed Override Hours 0 - 4 HRS OVR_EXT 0
SPT.O SPT Override Enabled ? YES/NO SPT_OVER Yes
T58.O T58 Override Enabled ? YES/NO T58_OVER Yes
GL.OV Global Sched. Override ? YES/NO GLBLOVER No