McQuay Magnitude WMC 145SBS - 400DBS - Page 29

OMM 1008-1 29
Figure 8, Field Wiring Diagram
NOTE: Complete notes are on the following page.
FIELDCONNECTION DIAGRAM
EXCERPTFROM SCHEM. 330387903 REV.0D
CENTRIFUGALUNITS
* FIELDSUPPLIEDITEM
FORDCVOLTAGEAND4-20 MA
CONNECTIONS(SEENOTE3)
FORDETAILSOFCONTROLREFERTO
UNITCONTROLSCHEMATIC330342103
COMPRESSORCONTROLSCHEMATIC
:
3303
42203
LEGEND:330343003
80
* CHILLED
WATER
PUMP
STARTERS
EWI-2
CP2
CP1
NOTE11
NOTE11
NOTE11
*
NOTE8
NOTE8
NOTE9
H
O
A
C4
* COOLING
TOWER
FIRST
STAGE
STARTER
* COOLING
TOWER
SECOND
STAGE
STARTER
* COOLING
TOWER
THIRD
STAGE
STARTER
* COOLING
TOWER
FOURTH
STAGE
STARTER
*
NOTE10
H
A
O
C3
* NOTE10
H
A
O
NOTE10
NOTE10
79
78
77
74
73
* REMOTE
ON/OFF
(NOTE5)
54
86
86
C
CWI-2
CWI-1
(115V) (24V)
M
I
C
R
O
T
E
C
H
C
O
N
T
R
O
L
BOXTERMINALS
55
70
H
A
O
H
A
O
H
O
A
C
H
O
A
C
H
O
A
C
NOTE11
NOTE9
EWI-1
C2
C1
*
*
*
*
*
*
MODESWITCH
76
75
PE
85
86
POWER
NEUTRAL
NOTE7
*
* CONDENSE
R
WATER
PUMP
STARTERS
EP2
EP1
70
70
CF1
CF1
EF1
EF1
(NOTE6)
EVAP.
DELTA P.
ORFLOW
SWITCH
(NOTE6)
COND.
DELTA P.
ORFLOW
SWITCH
NOTE11
NOTE11
MJ
MJ
UTB1
GND
81
84
COMMON
POWER
A
82(NO)
83(NC)
NOTE4
*
*ALARM RELAY
(NOTE4)
71
71
53
52
0-10VDC
0-10VDC
*COOLINGTOWERVFD
*COOLINGTOWERBYPASSVALUE