L:\~ Andreea temp\ZZ Follett Datasheets\TecDataSheet Info\WORD_datasheets\AJA7490ZXDHN_preliminary.doc 19/10/2011
Unit BOM 32L1801-2E
Fan Moto
810F050C20 Fix.Fan Switch #1 (F opt.
84132-01
Unit MODEL AJA7490ZXDHN
Fan Motor Qty 2 Fix.Fan Switch #2 (F opt.)
Fan Motor RLA 0.7 Adjus. Fan Ctrl. (A opt.)
Refrigeration RANGE -10°F to 35°F Fan Blade 51568-1
Design Pressure Low 181 Fan Guard 70831 Defrost Clock (Tn option)
Design Pressure High 450 Shroud 70648-2 Defrost Heaters Contactor
Volts - HZ - Ph 208-230V ~ 60HZ
Voltage Range 187 - 254 High Pressure switch 84095-2L Rec. Heater (R option)
Min. Circuit Ampacity 10.70 Low Pressure Control 84026-2 Solenoid Valve (loose)
Max. Fuse Size 15 Dual Pressure Conrol Disconnect (D option)
Compressor MODEL AJA7490ZXD Condenser 50855-1 Wiring with F option WD21-2AT2
Compressor BOM AJ779ET-361-A4 Head Master Valve 70083-1 Wiring with A option
Compressor LRA 40.6 Check Valve 56626
Compressor RLA 6.90 Process Valve
Liquid Valve 56500-K06
OverLoad 8300MRAC37 Suction Valve 56500-K10
Relay 14948497
Run Capacitor 85PR370F21 Receiver 51099-2L
Run Capacitor Rating 45 MFD, 370 V Receiver Qty 1
Start Capacitor 85PS330C24 Accumulator
Start Capacitor Rating 88-108 MFD, 330 V Liquid Filter 70081-3
Contactor 91014B Sight Glass 70084
Suction Filter 70822-6S
Unit Drawing DGU1758-L101
Wiring Diagram WD21-2XT2 CrankCase Heater 92123-1
BOM INDEX DESCRIPTION
Parts/Specifications
STANDARD OPTIONAL
32xYYYY- 2ERA(F)TnDS
E Enclosure
R Receiver Heater
D Disconnect
S Solenoid liquid Valve (supplied loose)
A Adjustable fan control
F Fixed fan Control
T1 Defrost timer option
T2 Defrost timer & Defrost Heaters Contactor
POTENTIAL RELAY
see note B
5
2
COMPRESSOR EQUIPPED WITH AN INTERNAL OVERLOAD
PROTECTOR. ALLOW TIME FOR RESET.
USE COPPER CONDUCTORS ONLY.
(EMPLOYER DES CONDUCTEUERS DE CUIVER
SEULEMENT.)
DEFROST
HEATERS
CONTACTOR COIL
FAN 2
L1
CRANK CASE
HEATER
COMPRESSOR
TERMINAL
C
GRD
L1 T1
BLACK
COMPRESSOR
CONTACTOR
T1
L1
T2
L2
COMPRESSOR CONTACTOR
NC AUXILIARY SWITCH
RECEIVER
HEATER
L3
L2
T3
T2
COMPRESSOR
CONTACTOR COIL
see note A
TERMINAL
BOARD
P1
HP LP
L1
T1T3
L3
DEFROST
HEATERS
CONTACTOR
START
CAPACITOR
WITH BLEEDER
RESISTOR
T2
L2
T3
L3
4
6
1
L2 L3 T3T1 F1 F2
AFC
FIELD INSTALLED
SOLENOID & THERMOSTAT
ROOM
THERMOSTAT
1
3
Solenoid
Valve
DEFROST CONTROL
RANCO 8145-xx
PRECISION 6145-xx
N
2
4
X
IMPORTANT:
FAN 1
GENERAL NOTES:
A. CONTACTOR COIL CIRCUIT IS FACTORY CONNECTED TO 230 V SOURCE IN
PANEL AS SHOWN
B. WITH ANY T.P.Co. APPROVED START RELAY USED, CONNECT LEADS TO
SAME NUMBERED TERMINALS REGARDLESS OF LOCATION
C. COMPRESSOR EQUIPPED WITH AN INTERNAL OVERLOAD PROTECTOR.
ALLOW TIME FOR RESET.
CONDENSING UNIT WIRING, 230V 60Hz 1 Ph,
Adjustable fan control,
T1 & T2 defrost options
FACTORY COMPONENTS
OPTIONAL FIELD COMPONENTS
OPTIONAL FACTORY COMPONENTS
HP
LP
AFC
ADJUSTABLE FAN CONTROL
LOW PRESSURE CONTROL
HIGH PRESSURE SWITCH
FIELD WIRING NOTES
1. ALL FIELD WIRING MUST BE DONE IN COMPLIANCE WITH ALL
APPLICABLE LOCAL AND NATIONAL CODES.
2. CONNECT INCOMING POWER LEADS FROM POWER SUPPLY
TO L1 AND L3 IN COMPRESSOR CONTACTOR (L1 AND L2 IF TWO POLE
CONTACTOR) OR TO L1 AND L3 IN DISCONNECT SWITCH (IF PROVIDED).
USE COOPER CONDUCTORS ONLY. (EMPLOYER DES CONDUCTEURS
DE CUIVER SEULEMENT.) PROVIDE EQUIPMENT GROUNDING
CONDUCTOR. USE 75°C (MIN.) WIRING
3. PLACE JUMPER ACCROSS P1 AND L1 IN TERMINAL BOARD IF NO OTHER
CONTROLLING DEVICE IS INSTALLED.
4. DEFROST HEATERS LOADS SHOULD NOT BE HIGHER THEN THE
MAXIMUM HEATERS LOAD INDICATED ON THE UNIT LABEL.
NOTES
WD21-2AT2
NOV 06, 2009
B
REVISION
S
R
RED
YELLOW
RED
BLACK
YELLOW
RUN
CAPACITOR
HEATER
THERMOSTAT
POWER SUPPLY
230-60-1
AJA7490ZXDHN
TPC___preliminary
October 19, 2011
(2 strony)
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