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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
Summary of Contents for WEATHERMAKER 48A2020
Page 112: ...112 Fig 20 Typical Main Control Box Wiring Schematic 48 50A Units ...
Page 113: ...113 Fig 21 Typical Auxiliary Control Box Wiring Schematic ...
Page 114: ...114 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown ...
Page 115: ...115 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown TO NEXT PAGE ...
Page 116: ...116 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont ...
Page 117: ...117 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown ...
Page 118: ...118 Fig 25 Typical Controls Option Wiring Schematic SW1 SW2 OR DEHUMIDIFY SWITCH ...
Page 119: ...119 Fig 26 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown ...
Page 120: ...120 Fig 27 Typical Power Schematic of Greenspeed Low Ambient Option 48 50A 060 Unit Shown ...
Page 121: ...121 Fig 28 Typical Small Chassis Component Location Size 020 035 Units ...
Page 122: ...122 Fig 29 Typical Large Chassis Component Locations Size 040 060 Units ...
Page 185: ...185 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716 ...