TYPICAL SCHEMATIC WIRING DIAGRAM
(Dual compressor units)
NOTES
1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.
2. ANY WIRE REPLACEMENT SHOULD BE OF THE 90
0
C
OR ITS EQUIVALENT.
USE COPPER CONDUCTOR WIRES ONLY.
3. POWER MUST BE SUPPLIED TO CRANKCASE
HEATER FOR MINIMUM OF 12 HOURS PRIOR TO
SYSTEM START UP.
IF POWER IS OFF 6 HOURS OR MORE, CRANKCASE
HEATER MUST BE ON FOR 12 HOURS BEFORE
OPERATING THE SYSTEM.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY
RESULT IN COMPRESSOR DAMAGE.
4. FUSED DISCONNECT SWITCH OR CIRCUIT
BREAKER TO BE PROVIDED BY END USER WITH
RATING AS RECOMMENDED BY ZAMIL.
5. PLEASE ALLOW 2-3 MINUTES FOR SSPS SWITCH TO
CLOSE, BEFORE STARTING THE UNIT.
6. USE DISCONNECT TAB OR SPLICE ONLY WHERE-
EVER REQUIRED FOR EXTENSION OF ORIGINAL WIRE.
7. FOR ANY SAFETY TRIP OF COMP. (FAULT), VOLTAGE
ACROSS TERMINAL 4A/4B & 2 OF SYSTEMIZER IS 24
VAC. ALSO COMPRESSOR LOCKOUT LIGHT IS ON.
8. FOR UNIT WITH OPTIONAL OPS/DTS, FOLLOW SR
COIL CONNECTION AS SHOWN IN OPS/DTS
CONNECTION BLOCK.
9. IF HEATERS ARE FACTORY INSTALLED, PLEASE
READ BROKEN LINES AS CONTINUOUS LINES.
10. HVTB 1 NOT REQUIRED FOR NON HEATER MODELS.
11. COMPRESSORS ARE PROVIDED WITH INTERNAL
THERMAL PROTECTOR FOR OVERLOAD PROTECTION.
EXTERNAL OLR IS PROVIDED FOR ADDED PROTECTION
& AVAILABLE FOR PDS180 & ABOVE.
12. NEUTRAL LINE REQUIRED ON 380V-3Ph-60Hz
POWER SUPPLY ONLY.
+
LEGEND
AI
ANTI ICE THERMOSTAT
AFS
AIR FLOW SWITCH
AR
AUXILIARY RELAY
ATB
AUXILIARY TERMINAL BLOCK
BM
BLOWER MOTOR
BMC
BLOWER MOTOR CONTACTOR
CC
COMPRESSOR CONTACTOR
CB
CIRCUIT BREAKER
C. HTR CRANKCASE HEATER
CR
CONTROL RELAY
COMP
COMPRESSOR
DTS
DISCHARGE TEMPERATURE SENSOR
FL
FUSE LINK
FCS
FAN CYCLING SWITCH
FM
FAN MOTOR (CONDENSER)
FMC
FAN MOTOR CONTACTOR
FR
FAULT RELAY
HC
HEATER CONTACTOR
HPS
HIGH PRESSURE SWITCH
HVTB
HIGH VOLTAGE TERMINAL BLOCK
H
HEATER
JP
JUMPER
L1
LINE 1
L2
LINE 2
L3
LINE 3
LPS
LOW PRESSURE SWITCH
LUG
LUG GROUND
LLS
LEAD LAG JUMPER IN SM
NTB
NEUTRAL TERMINAL BLOCK
OLR
OVER LOAD RELAY
OHT
OVER HEAT THERMOSTAT
PDSR
PUMP DOWN SOLENOID RELAY
PWS
PART WIND START
SM
SYSTEMIZER
SR
SAFETY RELAY
SSPS
SOLID STATE PROTECTIVE SYSTEM
TK
MOTOR THERMAL CONTACT
TRANS TRANSFORMER
T'STAT THERMOSTAT
UVM
UNDER VOLTAGE MONITOR
YR
COOLING RELAY
FIELD WIRING
DISCONNECT TAB - 1/4"
SPLICE-CLOSED END
_ _ _
+
18
FMC1 ATB
TK[FM3]
13C
2
FM3
36C
35C
37A
37C
FM2
FM4
37B
35B
36B
36D
37D
35D
TK[FM6]
TK[FM4]
TK[FM2]
CR2-2[RB1]
FMC2
CB6
L1
TO HVTB
L3
L2
B. WITH FAN CYCLING OPTION
1
ATB
13
13B
CB7
TO HVTB
L3
L1 L2
ATB
13F
13D
2
35B
ATB
1
TK[FM3]
TK[FM1]
CR1-2[RB1]
12
12B
36A
35A
37A
FM1
36E
37E
35E
37C
35C
36C
FM3
FM5
ATB
TK[FM5]
FMC1
13E
13C
2
36F
FM6
35F
37D
35D
36D
37B
36B
FM2
FM4
37F
12
12A
12B
2
L3
L1 L2
L3
L2
L1
103
101
100
102
FMC1
CB6
105
104
FMC2
CB7
( 6-CONDENSER FAN MOTOR CIRCUIT )
CONDENSER FAN MOTOR POWER & CONTROL CONNECTIONS
A. STANDARD OPTION
TO HVTB
NC
P
C
NO
FCS2
P
NC
C
TO HVTB
12C
TK[FM2]
FMC2
36B
37B
37A
36A
35B
35A
FM1
FM2
10
2
100
101
FMC
CB6
12A
FM1
ATB
1
CC1A-1 12
FCS1
35A
36A
FM2
FMC1
12B
TK[FM1]
ATB
2
37B
36B
35B
37A
CB6
FMC1
101
100
10
2
100
101
10
2
FMC2
FAN2
FAN1
CONDENSER FAN MOTOR POWER & CONTROL CONNECTIONS
( 2-CONDENSER FAN MOTOR CIRCUIT )
A. STANDARD OPTION
TO HVTB
L1 L2 L3
FAN1
FAN2
FAN1
FAN3
FAN2
FAN4
FAN1
[PDS100~150]
FAN2
FAN LAYOUTS
[PDS180~300]
[PDS360~600]
TO HVTB
L2
B. WITH FAN CYCLING OPTION
L1
FAN6
FAN5
FAN4
FAN3
L3
[PDS660~840]
FCS1
1
ATB
FCS2
13A
TK[FM4]
13
CR2-2 [RB1]
TK[FM2]
2 ATB
FMC4
13D
FMC2
13B
TK[FM6]
TK[FM4]
13A
P
ATB
1
FCS2
13
CR2-2 [RB1]
TK[FM2]
13B
P
13D
2
FMC4
FMC2
13F
ATB
CB7
CB6
ATB
1
FM1
12A
TK[FM3]
CR1-2 [RB1]
12
TK[FM1]
FMC3
13C
FMC1
12B
2 ATB
FM2
FM3
FM4
FMC1
37
A
35
A
36
A
102
100
101
37
B
FMC2
37
C
35
C
36
C
35
B
36
B
FMC3
36
D
35
D
37
D
FMC4
105
103
104
37
D
36
D
35
D
36F
35F
37F
37B
35B
36B
37C
35C
36C
37E
36E
36A
37A
35A
35E
TK[FM3]
TK[FM5]
1
ATB
FCS1
12A
12
CR1-2 [RB1]
TK[FM1]
12B
FM1
FM3
FM5
FMC3
13C
FMC1
13E
ATB
2
FM4
FM6
FM2
FMC1
FMC3
100
101
102
FMC2
FMC4
105
103
104
FMC2
CR2-2[RB1]
B. WITH FAN CYCLING OPTION
TO HVTB
L1 L2 L3
1
ATB
TO HVTB
L1 L2 L3
13
13B
TK[FM2]
13D
TK[FM4]
2
ATB
CR1-2[RB1]
FM1
ATB
1
36A
35A
TK[FM1]
12
12B
NO
CC2A-1
FMC
TK[FM2]
TK[FM1]
CC1A-1
ATB
ATB
L2 L3
L1
L1 L2 L3
CB6
FMC1
10
0
101
105
10
3
102
104
FMC2
CB7
TO HVTB
( 4-CONDENSER FAN MOTOR CIRCUIT )
CONDENSER FAN MOTOR POWER & CONTROL CONNECTIONS
A. STANDARD OPTION
1
TO HVTB
CC2A-1
NO
NC
C
NO
NC
C