Emerson Precision Cooling For Business-Critical Continuity Figure i - Manual (Page 16)

Installation
12
Figure 10 Three-phase, 3-5 ton model schematic, typical
3
2
4
1
L1
L2
L3
27
27,29,30
HP1
C1
HG1
W
BL
BR
1
4
2
3
BK
CHTR
BR BR
R
BK
HP2
R BK
RHTR1 RHTR2
HG1 HGSV
LLSV1
BR R OR
T3T2T1
COMP
R BK
Y CAP2
BR
1C1
2C1
3C1
BR
BR
F1
F2
TX1
BK
BK
Conductors Field-Supplied
(See Note 5)
HGBP Signal
Output
Connection
EVAPORATOR UNIT
Unit Alarm
Input
Connection
Earth Ground
By Others
3-Phase Line
Voltage Supply
By Others
(See Note 3)
OUTDOOR CONDENSING MODULE
See Note 7 See Note 1
See Note 6
24V Power
Supply
From Unit
Min 40VA
24V Ground
'FM'
Fan
Motor
1. Transformer 'TX1' provided on units with nameplate voltages greater
than 240V.
2. Use copper conductors onl y. See unit nameplate for main supply wire
sizing data. Wire per local codes.
3. A remote disconnect switch is to be field supplied and mounted
within sight of the condensing unit. See unit nameplate for voltage
and amperage requirements.
4. All motors have internal line break overload protectors. Three-phase
motors protected for primary single-phasing conditions.
5. Terminals 1, 2, 3 and 4 are for connection of control circuit from evaporator
unit. Wiring by others to be NEC Class 2 and sized for 1 volt maximum drop.
6. Wire '1' is connected to the grounded side of the 24V Class 2 circuit.
7. Receiver heater No.2 'RHTR2' supplied on 4- and 5-ton standard models and
3/3.5-ton high ambient and Quiet-Line models.
NOMENCLATURE
Standard Devices
C1 -- Condenser Contactor
CAP2 -- Fan Motor Capacitor
CHTR -- Compressor Heater
COMP -- Compressor
F1 -- Transformer Fuse 1
F2 -- Transformer Fuse 2
FM -- Fan Motor
HP1 -- High Pressure Switch
(Auto Reset)
HP2 -- Pressure Switch Receiver
(Auto Reset)
Optional Devices
HG1 -- Hot Gas Relay
HGSV -- Hot Gas Solenoid Valve
Factory-Supplied Line Voltage
Field-Installed Line Voltage Wiring
Optional Line Voltage Wiring
Factory-Supplied 24V NEC Class 2 Wiring
Optional 24V Wiring
Factory-Supplied 24V NEC Class 2 Wiring
Factory-Supplied Earth Grounding Wire
Pigtail Leads 24V Wiring
Terminal Strip Connection
OR - Orange
R - Red
BR - Brown
P - Purple
GN - Green
Y - Yellow
BL - Blue
BK - Black
W - White
WIRE COLOR CODE
Insulation Color
GN / Y
Tracer Color
191643
Rev. 0
LLSV -- Liquid Line Solenoid Valve
RHTR1 -- Receiver Heater No. 1
RHTR2 -- Receiver Heater No. 2
(3-,4-,and 5-ton only)
TX1 -- Transformer Line
Voltage to230V
Grounding Lug Connection