Step 5 - Make Electrical Connections; Power Supply - Carrier 09FC020 Installation, Start-Up And Maintenance Instructions

55
FC Mode
50
Bypass Mode
45
40
35
30
25
20
15
10
5
0
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300
Step 5 — Make Electrical Connections
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation. There may be
more than one disconnect switch. Tag all disconnect locations
to alert others not to restore power until work is completed.
CONNECTION TYPE UNIT SIZES
FUSED DISCONNECT
NOTES:
1. Field wiring for supply conductors must be rated 75°C minimum.
2. Use copper conductors only.
Fig. 27 — 09FC 040 Pressure Curve
Table 4 — Field Wire Sizes
VOLTAGE
020 All
030 380-575V
040 380-575V
050 440-575V
060 575V
030 200/230V
040 200/230V
050 380-415V
060 380-460V
070 All
080 All
GPM

POWER SUPPLY

Electrical characteristics of available power supply must agree
with unit nameplate rating. Field wiring size must be within limits
shown in Table 4. See Table 5 for unit electrical data. See Fig. 28
and 29 for typical wiring connections.
IMPORTANT: Operating unit on improper supply voltage
or with excessive phase imbalance constitutes abuse and
may affect Carrier warranty.
MCA RANGE WIRE SIZE RANGE
Up to 60A #4 - #18
Over 60A #1 - #8
24
MAXIMUM
NUMBER OF
LUG TORQUE
WIRES PER
PHASE
30 in-lb
1
(3.39 N-m)
40 in-lb
(4.52 N-m) 1