101
Table 94 — CCN/Linkage Display Table
Table 95 — Compressor Run Hours Display Table
Table 96 — Compressor Starts Display Table
Table 97 — Time Guard Display Table
Table 98 — Software Version Numbers Display Table
Alarms and Alerts
There are a variety of different alerts and alarms in the system.
• P — Pre-Alert: Part of the unit is temporarily down. The
alarm is not broadcast on the CCN network. The alarm re-
lay is not energized. After an allowable number of retries,
if the function does not recover, the pre-alert will be up-
graded to an alert or an alarm.
• T — Alert: Part of the unit is down, but the unit is still par-
tially able to provide cooling or heating.
• A — Alarm: The unit is down and is unable to provide
cooling or heating.
All alarms are displayed with a code of AXXX where the A is
the category of alarm (Pre-Alert, Alert, or Alarm) and XXX is
the number.
The response of the control system to various alerts and alarms
depends on the seriousness of the particular alert or alarm. In the
mildest case, an alert does not affect the operation of the unit in
any manner. An alert can also cause a “strike.” A “striking” alert
will cause the circuit to shut down for 15 minutes. This feature
reduces the likelihood of false alarms causing a properly work-
ing system to be shut down incorrectly. If three strikes occur be-
fore the circuit has an opportunity to show that it can function
properly, the circuit will strike out, causing the shutdown alarm
for that particular circuit. Once activated, the shutdown alarm
can only be cleared via an alarm reset.
Circuits with strikes are given an opportunity to reset their
strike counter to zero. As discussed above, a strike typically
causes the circuit to shut down. Fifteen minutes later, that cir-
cuit will once again be allowed to run. If the circuit is able to
run for 1 minute, its replacement circuit will be allowed to shut
down (if not required to run to satisfy requested stages). How-
ever, the “troubled” circuit must run continuously for 5 min-
utes with no detectable problems before the strike counter is re-
set to zero.
All the alarms and alerts are summarized in Table 99.
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
LINK CCN - LINKAGE
MODE Linkage Active - CCN ON/OFF MODELINK
L.Z.T Linkage Zone Control Tmp dF LZT
L.C.SP Linkage Curr. Cool Setpt dF LCSP
L.H.SP Linkage Curr. Heat Setpt dF LHSP
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
HRS COMPRESSOR RUN HOURS
HR.A1 Compressor A1 Run Hours 0 to 999999 HRS HR_A1 config
HR.A2 Compressor A2 Run Hours 0 to 999999 HRS HR_A2 config
HR.B1 Compressor B1 Run Hours 0 to 999999 HRS HR_B1 config
HR.B2 Compressor B2 Run Hours 0 to 999999 HRS HR_B2 config
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
STRT COMPRESSOR STARTS
ST.A1 Compressor A1 Starts 0 to 999999 CY_A1 config
ST.A2 Compressor A2 Starts 0 to 999999 CY_A2 config
ST.B1 Compressor B1 Starts 0 to 999999 CY_B1 config
ST.B2 Compressor B2 Starts 0 to 999999 CY_B2 config
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
TMGD TIMEGUARDS
TG.A1 Compressor A1 Timeguard CMPA1_TG
TG.A2 Compressor A2 Timeguard CMPA2_TG
TG.B1 Compressor B1 Timeguard CMPB1_TG
TG.B2 Compressor B2 Timeguard CMPB2_TG
TG.H1 Heat Relay 1 Timeguard HS1_TG
TG.H2 Heat Relay 2 Timeguard HS2_TG
TG.H3 Heat Relay 3 Timeguard HS3_TG
TG.H4 Heat Relay 4 Timeguard HS4_TG
TG.H5 Heat Relay 5 Timeguard HS5_TG
TG.H6 Heat Relay 6 Timeguard HS6_TG
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
VERS SOFTWARE VERSION NUMBERS
MBB CESR131343-xx-xx string
ECB1 CESR131249-xx-xx string
ECB2 CESR131465-xx-xx string
SCB1 CESR131226-xx-xx string
CEM CESR131174-xx-xx string
SCB2 CESR131226-xx-xx string
RXB CESR131465-xx-xx string
EXV CESR131172-xx-xx string
VFD
MARQ CESR131171-xx-xx string
NAVI CESR130227-xx-xx string
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