Troubleshooting guide
MAGNUM VERSION 8 MANUAL REVISION 3.1
6
Status of Boiler Logic displayed by the Magnum .......................................................................................................... 90
7.75.4.
Pump States ..................................................................................................................................................................... 92
7.75.5.
Boiler States ..................................................................................................................................................................... 92
7.75.6.
7.76.
HVAC
D
EFROST
C
YCLE
.......................................................................................................................................................... 93
7.77.
C
ONTROL FOR
S
ECOND SET OF
E
VAPORATOR
P
UMPS
/F
ANS
................................................................................................... 94
MCS-Config Setup ........................................................................................................................................................... 94
7.77.1.
7.78.
C
ONDENSER
L
IQUID
L
EVEL
C
ONTROL
(CLLC)
ONLY WITH
CENT ....................................................................................... 95
The following items in the MCS Config are required .................................................................................................... 95
7.78.1.
The following sensor inputs are required by the CLLC ................................................................................................ 96
7.78.2.
The following Setpoints are required by the CLLC ....................................................................................................... 96
7.78.3.
CLLC States ..................................................................................................................................................................... 97
7.78.4.
CLLC Valve States .......................................................................................................................................................... 97
7.78.5.
CLLC Status viewed from MCS Connect ....................................................................................................................... 98
7.78.6.
CLLC Status viewed from MCS Magnum ...................................................................................................................... 98
7.78.7.
CLLC Determining Stable/Unstable Condition ............................................................................................................. 98
7.78.8.
CLLC Control Logic ....................................................................................................................................................... 99
7.78.9.
Condenser liquid level positioning: ......................................................................................................................... 100
7.78.10.
Condenser Liquid Level Adjustment ........................................................................................................................ 100
7.78.11.
Condenser Liquid Level Time Delay ........................................................................................................................ 100
7.78.12.
7.79.
L
OCKOUT PER
C
OMPRESSOR
.................................................................................................................................................. 101
7.80.
F
ACTORY
A
UTHORIZED
S
TARTUP AND
R
UN
H
OUR
L
OCKOUT
............................................................................................. 101
MCS-Config Setup: (requires MCS-Config 8.10D or greater) ................................................................................... 101
7.80.1.
MCS Connect (requires MCS-Connect 8.10-V) .......................................................................................................... 102
7.80.2.
7.80.2.1.
Magnum HVAC software only ............................................................................................................................... 102
7.81.
U
SER
L
OGIC
............................................................................................................................................................................ 105
Operands........................................................................................................................................................................ 105
7.81.1.
Operators ....................................................................................................................................................................... 106
7.81.2.
User Sensor Input .......................................................................................................................................................... 107
7.81.3.
User Relay Output ......................................................................................................................................................... 108
7.81.4.
User Analog Output ...................................................................................................................................................... 109
7.81.5.
8.
Magnum Alarms and Safeties .................................................................................................................................... 111
8.1.
I
NFORMATION
O
NLY
A
LARMS
............................................................................................................................................... 111
System Generated Alarms ............................................................................................................................................. 111
8.1.1.
User Initiated Alarms .................................................................................................................................................... 111
8.1.2.
Automatic Alarms .......................................................................................................................................................... 112
8.1.3.
8.2.
M
AGNUM
S
YSTEM
A
LARMS
.................................................................................................................................................. 112
Configuration Alarms ................................................................................................................................................... 112
8.2.1.
MCS Local Network Alarms ......................................................................................................................................... 112
8.2.2.
Key Sensors Alarms ....................................................................................................................................................... 112
8.2.3.
Emergency Stop Alarm ................................................................................................................................................. 112
8.2.4.
8.3.
S
ETPOINT SAFETY ALARMS
.................................................................................................................................................... 112
Sensor Inputs Used With Magnum Setpoint Safeties: ................................................................................................. 113
8.3.1.
Setpoint safeties ............................................................................................................................................................. 113
8.3.2.
8.4.
T
URBO
C
OR
C
OMPRESSOR
A
LARMS
....................................................................................................................................... 115
9.
Hardware Quick References ...................................................................................................................................... 117
9.1.
M
AGNUM
K
EYPAD
D
ISPLAY
.................................................................................................................................................. 117
9.2.
MCS-M
AGNUM
R
EVISION
8.1 ............................................................................................................................................... 118
9.3.
MCS-SI16-AO4 ..................................................................................................................................................................... 119
9.4.
MCS-RO10 ............................................................................................................................................................................ 120
10.
Troubleshooting Quick Reference .......................................................................................................................... 121
11.
BMS Communication Protocols.............................................................................................................................. 123
11.1.
S
ENSOR
I
NPUT
P
OINTS
............................................................................................................................................................ 123
11.2.
R
ELAY
O
UTPUT
P
OINTS
.......................................................................................................................................................... 124
11.3.
A
NALOG
O
UTPUT
P
OINTS
...................................................................................................................................................... 124
11.4.
S
ETPOINTS
........................................................................................................................ E
RROR
!
B
OOKMARK NOT DEFINED
.
11.5.
C
HILLER
/C
OMPRESSOR
S
TATES
............................................................................................................................................. 125
11.6.
O
THER
P
OINTS
........................................................................................................................................................................ 126
11.7.
N
ETWORK INPUTS TO
MCS-M
AGNUM
.................................................................................................................................. 128
11.8.
MCS
C
APACITY
C
ONTROL
S
TATE
C
HART
............................................................................................................................ 129