Zamil CX SERIES Installation, Operation & Maintenance Manual - page 15
TYPICAL SCHEMATIC WIRING DIAGRAM
MODELS : CX240 - CX360 (DUAL COMPRESSOR UNITS)
LEGEND
AHU
AIR HANDLING UNIT
AI
ANTI ICE THERMOSTAT
AR
AUXILIARY RELAY
ATB
AUXILIARY TERMINAL BLOCK
CAP
CAPACITOR
CC
COMPRESSOR CONTACTOR
CB
CIRCUIT BREAKER
C. HTR CRANKCASE HEATER
COMP
COMPRESSOR
CR
CONTROL RELAY
FM
FAN MOTOR (CONDENSER)
FMC
FAN MOTOR CONTACTOR
FR
FAULT RELAY
FCS
FAN CYCLING SWITCH
HPS
HIGH PRESSURE SWITCH
HVTB
HIGH VOLTAGE TERMINAL BLOCK
JP
JUMPER
L1
LINE 1
L2
LINE 2
L3
LINE 3
LPS
LOW PRESSURE SWITCH
LUG
LUG GROUND
NTB
NEUTRAL TERMINAL BLOCK
OPS
OIL PRESSURE SWITCH
OLR
OVER LOAD RELAY
PDS
PUMP DOWN SOLENOID
PDSR
PUMP DOWN SOLENOID RELAY
RR
RESET RELAY
SD
SMOKE DETECTOR
SSPS
SOLID STATE PROTECTION SYSTEM
TDS
TIME DELAY SWITCH
TRANS TRANSFORMER
T'STAT THERMOSTAT
UL
UNLOADER SOLENOID
UVM
UNDER VOLTAGE MONITOR
VFC
VOLT FREE CONTACT
YR
COOLING RELAY
FIELD WIRING
DISCONNECT TAB - 1/4"
SPLICE-CLOSED END
_ _ _
+
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. IF PDS IS FACTORY INSTALLED, PLEASE READ
BROKEN LINES AS CONTINUOUS LINES.
6. ALLOW 2-3 MINUTES FOR SSPS SWITCH TO CLOSE,
BEFORE STARTING THE UNIT.
7. USE DISCONNECT TAB OR SPLICE ONLY WHERE
EVER REQUIRED FOR EXTENSION OF ORIGINAL
WIRE.
8
.
REMOVE JUMPER FOR AI OPTION. ROUTE AI
WIRES FROM AHU.
9.
REQUIRED FOR PARTWIND START MODELS ONLY.
10. ATB (3) & (5) IS APPLICABLE FOR PDS OPTION UNITS
ONLY.
11. CC-OLR CONNECTING WIRE NOT REQUIRED FOR
OLR. FIXED DIRECTLY BENEATH CONTACTORS.
L2
SSPS2
M2/14
C.HTR2
L3
C.HTR1
2
COMP2
101A
CC2A-1
1
C.HTR2
2
ATB2
25B
2
L3
23A
23A
LPS2
TO
TO
LPS1
9. HPS OPTION
HPS2
24B
HPS1
24A
L3
Ø
L3
TO ATB 1
TO ATB 1A
UVM-1
(REMOVE JP1)
Ø
L1
1
Ø
L2
Ø
8
Ø
L1
L2
UVM
T3
A
T1
A
T2
A
TO HVTB
COMPRESSOR CONN. APPLICABLE
PRESSURE SWITCH SETTINGS
LPS1 & 2
HPS1 & 2
FCS1 & 2
NAME
CLOSE(PSIG)
360 ± 15
50 ± 5
290 ± 10
25 ± 5
190 ± 15
450 ± 10
OPEN (PSIG)
COMP 1:
2
15
FR1-2B
FR1-2A
54
AR1
1A
59
COMP2 ON
3B
ATB
FR2-1
17
44A
ATB
2
41B
57 58
AR
6-
1B
60
AR7
FR2
44
COMP2 TRIP
COMP2 OFF
61
AR
7-
1A
UNIT ON
AR1-1
FR2-2A
COMP 2:
45
17
FR2-2B
46
1B
2. SMOKE DETECTOR OPTION
VFC-FROM CUSTOMER'S SMOKE DETECTOR
1. UVM OPTION
2
ATB
17
2
63
62
47
CONNECTION FOR MANUEROP COMP. WITH SSPS
CONNECTION FOR COMP. WITH SSPS
CRANKCASE HTR CONNECTION - SCROLL COMP
CRANKCASE HTR CONNECTION. APPLICABLEFOR BITZER COMP-230V TYPE
CRANKCASE HTR CONN. APPLICABLE FOR SEMI-HERMETIC COMPRESSOR
100A
SSPS1-CT
C.HTR1
DIAGRAM. SECONDARY ALREADY WIRED BY COMP. SUPPLIER.
SSPS-CT PRI TO BE FACTORY WIRED AS SHOWN IN SCHEMATIC
SEE DETAILS WIRING INSIDE COMP. TERMINAL COVER. SSPS-CC
CONTROL CIRCUIT WIRES TO BE CONNECTED TO CONTROL CIRCUIT
COMP1
L1/MP/L
L1
L2
ATB2
SSPS2-CT
REMOVE JP4
COMP. 1:
24A
1
M1/11
SSPS1
L1
L1
CC1A-1
COMP1
CC1A-1
1
COMP2
L2/R/N
L3
L2
ATB2
L2
(SEE NOTE 6)
M2/14
100A
C.HTR1
2
25A
L2
L2/R/N
L1/MP/L
SSPS1-CC
REMOVE JP7
SSPS2-CC
24B
24A
ATB2
25B
25A
C.HTR2
101A
COMP. 2:
1
24B
M1/11
CC2A-1
L2
87B
88B
86B
88A
86A
87A
FOR CIRCUIT BRAKER OPTION
TO HVTB
CB2
L3
B
L2
B
L1
B
CC2
OLR2
2
COMP
T2
B
T3
B
T1
B
CB1
OLR1
CC1
L3
A
L1
A
L2
A
1
COMP
*
27A
COMP1:
3A
CR3-1
1
28A 2
OPS1
3A
28C
AR9
AR13-1
LPS SETTING FOR UNLOADING
1
2
2
2
3B
AR12
9A
AR13
2
LPS3 & 4
5B
2
OPEN
45 PSIG
9A
1OA
AR8-2
AR12-1
1
AR9-2
11A
AR13-1
10A
1
CLOSE
55 PSIG
AR9-1
6B
CR4-1
OPS2
5A
AR8
29A
SR1
2
2
27B/28D
OPS1
2
240
2
2
2
COMP2:
3B
1
27B
3B
1
AR8-1
DTS2
*
29B
6A
SR2
2
OPS2
HRM2
28B 2
28D
SR2
CR4
2
2
240
2
2
UNIT-TRIP
B. COMP ON,OFF&TRIP[&]UNIT TRIP INDICATION OPTION
UNIT OFF
AR
7-
1B
AR1-1
3. VOLT FREE CONTACT OPTIONS
A) UNIT ON & OFF INDICATION
REMOVE JP2
41A
ATB
2
HGS
43
2
55
FR1-1
3A
FR1
AR6
COMP1 ON
COMP1 TRIP
COMP1 OFF
56
AR
6-
1A
TERMINALS IN SPPS MODULE INSIDE COMPRESSOR TERMINAL BOX.
HGS
14A
UL1
UL2
LEAD & COMP2 IN THE LAG SEQUENCE ONLY.
WITH HGS OPTION, LLS POSITION IN AHU SHALL BE WITH COMP1 IN THE
B. FOR UNITS WITH 1 UNLOADER
A. FOR UNITS WITHOUT UNLOADER
8. HOT GAS BY-PASS OPTION
6. DISCHARGE TEMPERATURE SENSOR OPTION
7.CONNECTIONS APPLICABLE FOR COMPRESSORS WITH UNLOADER
5. HOUR RUN METER OPTION
4. OIL PRESSURE SWITCH OPTION
HRM1
DTS1
CR3
28C/28D IS APPLICATION FOR UNITS WITH OPS OPTION
SR1
1.UNLOADER CIRCUIT
PLS CONNECT LPS ACCORDINGLY.
IS ENERGIZED.
IS DE-ENERGIZED.
BITZER:-COMPRESSOR WILL BE FULLY LOADED WHEN UNLOADING SOLENOID
COPELAND:-COMPRESSOR WILL BE FULLY LOADED WHEN UNLOADING SOLENOID
LPS4
3A
3B
NOTE:
AR12
AR13
3A
AR12
NOTE:
3B
3A
*
LPS3
27A/28C
14