Figure 10 Three-Phase, 3-5 Ton Model Schematic, Typical - Liebert Prop Fan Condensing Unit User Manual

Figure 10 Three-phase, 3-5 ton model schematic, typical

Conductors Field-Supplied
(See Note 5)
EVAPORATOR UNIT
Unit Alarm
3
Input
Connection
24V Power
2
Supply
From Unit
Min 40VA
HGBP Signal
4
Output
Connection
1
24V Ground
L1
3-Phase Line
Voltage Supply
L2
By Others
L3
(See Note 3)
Earth Ground
By Others
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.
OUTDOOR CONDENSING MODULE
3
BL
HP1
2
W
4
BR
See Note 6
1
BR
See Note 1
F1
TX1
BK
F2
BK
1C1
2C1
3C1
BR BR
R
CH TR
CAP2
BR
BK C1
BR
HG1
See Note 7
HP2
R R BK
RHTR1
BK
HG1
LLSV1
BR R OR
BK
Y
'FM' T3 T2 T1
Fan
COMP
Motor
12
NOMENCLATURE
Standard Devices
C1 -- Condenser Contactor
CAP2 -- Fan Motor Capacitor
CHTR -- Compressor Heater
COMP -- Compressor
F1 -- Transformer Fuse 1
F2 -- Transformer Fuse 2
27,29,30
FM -- Fan Motor
HP1 -- High Pressure Switch
(Auto Reset)
HP2 -- Pressure Switch Receiver
(Auto Reset)
LLSV -- Liquid Line Solenoid Valve
27
RHTR1 -- Receiver Heater No. 1
RHTR2 -- Receiver Heater No. 2
(3-,4-,and 5-ton only)
TX1 -- Transformer Line
Voltage to230V
Optional Devices
RHTR2
HG1 -- Hot Gas Relay
HGSV -- Hot Gas Solenoid Valve
HGSV
WIRE COLOR CODE
OR - Orange
R - Red
BR - Brown
P - Purple
GN - Green
Y - Yellow
BL - Blue
BK - Black
W - White
Insulation Color
GN / Y
Tracer Color
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
Grounding Lug Connection
Installation
191643
Rev. 0