Manual 2100-574
Page 14 of 23
FIGure 1mD4000-b cOntrOller cOnnectIOns1-staGe (h**a/h**l serIes) aIr cOnDItIOnersWIth (ecOnWmt) ecOnOmIzers

system

type model

series

mD4000-b

newer ecOnWmt economizer —

no communication board

mD4000-bc newer ecOnWmt economizer

with cb4000 communication board

A/C with 1-Stage Compressor H**A / H**L 1 2
table 1

hOOk-uP DIaGram selectIOn table — reFerence FIGure 1 shOWn

2
E
F
2
3
E
F
3
CU,ANDSILVER MUST
NOTE:ALLSENSORS ARE
POLARITYSENSITIVE. COPPER
LEADMUST CONNECTTO
LEADTOAG
4
R
UNIT 2
4
MD4000
CONTROLLER
REM2
REM1
LOCAL
AG
H2
H1
CU
AG
CU
AG
CU
F2
F1
C
W
Y1
MAINBOARD
HUMIDITY
TERMINALBLOCK
R
C
Y
F
A
4
5
6
Y2
G
MD4000 UNIT 1
TERMINALBLOCK
8
6
5
4
A
F
Y
C
R
9
G
Y2
Y1
8
9
MD4000 UNIT 2
BOARD
1
BLUE/WHITE
ADVANCE
W
C
G2
G1
SMOKE
COPPER
SILVER
COPPER
SILVER
COPPER
SILVER
ALARM
GEN RUN ALARM/
1
3
FIRE/
JUMPER
REMOVE
UNIT 2
UNIT 1
NUMBER8612-023
SENSORS,BARDPART
25FOOTTEMPERATURE
C
OPENONALARM
NOTE: DC BACK-UPPOWER
OPERATEON DC POWERONLY
+
"NO" CONTACTS - CLOSEON RISE
_
FIRE/SMOKE
OR CONTROLLERWILL NOT 48VDC
OPTIONAL
48VDC
2
ALARM (NC)
ECONFAIL
ALARM (NC)
ECONFAIL
DIRTYFILTER
ALARM (NC)
ALARM (NC)
OPTIONALFIELD INSTALLED
JUMPER
30
27
MD4000
DIRTYFILTER
HUMIDITY CONTROLLER
OPTIONALFIELD INSTALLED
TERMINALBLOCK
2 COMP RUN ALARM
"NC" CONTACTS -
ALARM CIRCUIT
MUSTBE CONNECTEDASSHOWN
R
R
41
42
43
44
45
46
7
8
6
5
4
A
F
Y
C
R
9
3
10
2
E
G
Y2
Y1
ISPOLARITYSENSITIVE AND
SPYDERECON
ACUNIT 1
YELLOW/RED
RED/WHITE
BLACK/WHITE
BLUE
YELLOW
YELLOW/WHITE
PURPLE
BLUE/WHITE
BROWN/WHITE
R
C
NO
9
26
28
30
15 ORANGE
ECONSHUTDOWN
W
10
1
LOCKOUTALARM
LOCKOUTALARM
41
42
43
44
45
46
47
48
46
45
44
43
42
41
DISPLAY 1
1 2 34 321
DISPLAY 2
4
ORANGE15
10
28
26
9
NO
27
UNIT 1
SPYDERECON
RED/WHITE
BLACK/WHITE
BLUE
YELLOW
YELLOW/WHITE
PURPLE
BROWN/WHITE
YELLOW/RED
ACUNIT 2
1
E
2
3
10
G
Y2
Y1
8
W
6
5
4
R
7
9
A
F
C
Y
41
42
43
44
45
46
47
48
NC CONTACTS
OPENONALARM
NC CONTACTS
OPENONALARM REMOVE
3
2
MIS-3092 A
1
3
THE"E"AND "F " CONNECTIONFOREMERGENCY
VENTILATIONAREAVAILABLE
A/C UNITS
ALARM - REQUIRES"J" CONTROLMODULE IN
REFRIGERANTPRESSURELOCKOUT
USESHIELDED CABLEOR EQUIVAL ENT.
CONNECTSHIELDAT SPYDER ONLY