TYPICAL SCHEMATIC WIRING DIAGRAM
15
UNIT OFF
FR
COMP
17
AR1-1
46
AR1
47
17
CONN.FOR OIL PRESSURE SWITCH OPTION
CR-1
1
28A
26A/27A
OPS
2
2
240
28C
OPS
SR
2
(PLS. CONNECT LPS ACCORDINGLY)
5A
NOTE:
AR8
ONE UNLOADER
LPS1
3A
6A
UL
AR8-1
1
2
2
1) UVM OPTION
OPTIONS
2) SMOKE DETECTOR OPTION
UVM-1 8
1
REMOVE JP2
VFC-FROM CUSTOMER'S
SMOKE DETECTOR
1A
1B
(REMOVE JP1)
1A
TO ATB
TO ATB 1
Ø
Ø
L2
L1
Ø
L1
L3
Ø
L2
Ø
UVM
L3
REMOVE JP4
1
2
(SEE NOTE 6)
COMP
CONNECTION FOR COMP. WITH SSPS
SSPS
4. HPS OPTION
CCA-1B IS CC1A-2B
TO
LPS
43
23A
HPS
24A
UNIT-TRIP
FR-1
44
C-ON
FOR PWS CCA-1A IS CC1A-2A &
55
CCA-1
B
57
C-OFF
C-TRIP
56
58
54
CCA-1
A
FR-2
FR-2
AR1-1
UNIT ON
UNIT TRIP INDICATION OPTION
B) COMP ON, OFF & TRIP [&]
A) UNIT ON & OFF INDICATION
ATB
41A
45
UNLOADER CIRCUIT CONNECTION FOR COMP WITH
BITZER COMP: FULLY LOADED WHEN UL IS DE-ENERGIZED
COPELAND COMP:-FULLY LOADED WHEN UL IS ENERGIZED
CRANKCASE HTR CONNECTION FOR SEMI HERMETIC
COMPRESSOR ONLY
CRANKCASE HTR CONNECTION
MODELS : CX150 (SINGLE 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. 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. FOR UNITS HAVING COMP. OLR, FM WIRES 36A &
36B TO BE CONNECTED TO 71A & 72A AND 37A &
37B TO BE CONNECTED TO 72A & 73A RESPEC-
TIVELY.
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
_ _ _
+
10
