![background image](http://html.mh-extra.com/html/carrier/50hs024-060/50hs024-060_installation-start-up-and-service-instructions-manual_2563312013.webp)
Table 3 — Electrical Data
UNIT
50HS
V-PH
(50 Hz)
VOLTAGE
RANGE
COMPRESSOR
OFM
FLA
IFM
FLA
ELECTRIC HEAT
UNIT
kW
POWER SUPPLY
Min
Max
RLA
LRA
Nominal kW*
FLA
MCA
MOCP†
024
400-3
380
420
4.8
34
1.4
1.6
—
6.9
10.4
—
10.5
15.8
3.1
9.4
12.9
9.0
22.1
28.7
10
25
30
030
400-3
380
420
4.8
40
1.4
1.6
—
6.9
10.4
—
10.5
15.8
3.8
9.6
13.1
9.0
22.1
28.7
10
25
30
036
400-3
380
420
6.4
42
1.4
1.6
—
6.9
10.4
—
10.5
15.8
4.8
10.3
13.8
11.0
24.1
30.7
15
25
35
048
400-3
380
420
8.9
64
2.0
4.0
—
6.9
10.4
12.1
—
10.5
15.8
18.5
5.6
11.5
15.0
16.7
17.1
31.6
38.3
41.6
25
35
40
45
060
400-3
380
420
11.3
73
2.0
4.0
—
6.9
10.4
12.1
—
10.5
15.8
18.5
8.3
12.5
16.0
17.7
20.0
31.0
37.6
41.0
25
35
40
45
LEGEND
—
— No Electric Heat
AWG
— American Wire Gage
FLA
— Full Load Amps
IFM
— Indoor-Fan Motor
LRA
— Locked Rotor Amps
MCA
— Minimum Circuit Amps
MOCP — Maximum Over-Current Protection
OFM
— Outdoor-Fan Motor
RLA
— Rated Load Amps
*Electric heat capacity (kW) is based on heater voltages of 400 v. If
power distribution voltage to units varies from rated heater voltage,
see Table 5 on page 14.
†Fuse or circuit breaker.
NOTES:
1. The wire size and length is as follows:
UNIT
50HS
MIN WIRE
MAX WIRE LENGTH
mm
2
AWG 60 C
M
Ft
024-036
2.5
14
30.5
100
048, 060
4.0
12
30.5
100
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage
is greater than 2%. Use the following formula to determine the per-
cent of voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 400-3-50.
AB = 393 v
BC = 403 v
AC = 396 v
393 + 403 + 396
Average Voltage =
3
1192
=
3
= 397
Determine maximum deviation from average voltage.
(AB) 397 – 393 = 4 v
(BC) 403 – 397 = 6 v
(AC) 397 – 396 = 1 v
Maximum deviation is 6 v.
Determine percent of voltage imbalance.
6
% Voltage Imbalance = 100 x
397
= 1.5%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than
2%, contact your local electric utility company immediately.
Table 4 — Accessory Electric Heater Packages — Single-Point Connection
UNIT
50HS
ELECTRIC HEAT KIT
PART NO. CPHEATER------*
ELECTRIC HEAT
(kW)†
400 V, 3 Ph
HEATER
FLA
MIN CIRCUIT
AMPACITY
FOR WIRE SIZING
MAX FUSE
OR CIRCUIT
BREAKER
024
021A00
6.9
10.5
22.1
25
022A00
10.4
15.8
28.7
30
030
021A00
6.9
10.5
22.1
25
022A00
10.4
15.8
28.7
30
036
021A00
6.9
10.5
24.1
25
022A00
10.4
15.8
30.7
35
048
021A00
6.9
10.5
31.6
35
022A00
10.4
15.8
38.3
40
023A00
12.1
18.5
41.6
45
060
021A00
6.9
10.5
31.0
35
022A00
10.4
15.8
37.6
40
023A00
12.1
18.5
41.0
45
LEGEND
FLA — Full Load Amps
*Electric heat kit provides single point wiring connections.
†Electric heat capacity (kW) is based on heater voltages of 400 v. If power distribution voltage to units
varies from rated heater voltage, see Table 5 on page 14.
13