Bard MC4002-BC - Page 29

Manual 2100-614K
Page 29 of 61
CONTROLLER CONNECTIONS DIAGRAM 5
2-Stage (W*SAC Series) Air Conditioners – No Economizers
OPERATE ON DC POWER ONLY
MIS-4282
Y1
Y2
CU
AG
G1
G2
H1
H2
C
OPTIONAL FIELD INSTALLED
W
R
AG
CU
AG
CU
G
C
G
R
B/W1
UNIT 2
LOCAL
REM 1
REM 2
GEN
Y1
CONTROLLER
HUMIDITY
2
CU, AND SILVER LEAD TO AG.
LEAD MUST CONNECT TO
SENSOR 12" LEADS
COPPER
SILVER
COPPER
SILVER
COPPER
SILVER
STANDARD LOCAL
POLARITY SENSITIVE. COPPER
NOTE: ALL SENSORS ARE
NUMBER 8612-023A
REMOVE JUMPER
SENSORS, BARD PART
"NC" CONTACTS - OPEN ON ALARM
GENERATOR RUN ALARM
35 FOOT TEMPERATURE
"NO" CONTACTS - CLOSE ON RISE
HUMIDITY CONTROLLER
A/C #2
THE JUMPER BETWEEN Y2 AND Y3 MUST BE IN PLACE
Y2
OPTIONAL FIELD INSTALLED
"NC" CONTACTS - OPEN ON ALARM
FIRE/SMOKE ALARM CIRCUIT
A/C #1
REMOVE JUMPER
UNIT 1
48 VDC
CONNECTION
FIRE/SMOKE
OPTIONAL - 48 VDC
Y1
R
G
B/W1
C
R
G
W
-
Y2
Y1
C
+
F2
F1
Y2
CB
Y3
1
Y3
1
W2
1
W2
2
RT
2
RT
3
3
3
THE JUMPER BETWEEN RT AND R MUST BE IN PLACE
INSTALL JUMPER IF 15KW OR HIGHER ELECTRIC HEAT IS INSTALLED
NOTE: DC BACK-UP POWER
IS POLARITY SENSITIVE AND
MUST BE CONNECTED AS SHOWN
OR CONTROLLER WILL NOT
MC4000 series