15
Table 3 - Electrical data
50RHE
Power supply
Voltage
Compressor
Fan
Total
Min. circuit
Max.
V-ph-Hz
min./max.
RLA
LRA
motor
unit
current
fuse/HACR
V
FLA
FLA
A
A
006
220/240-1-50
197/254
2.3
15.0
0.4
2.7
3.2
15
009
220/240-1-50
197/254
2.7
18.8
0.7
3.7
4.5
15
012
220/240-1-50
197/254
3.9
22.2
0.7
4.5
5.6
15
015
220/240-1-50
197/254
4.2
27.0
0.9
5.9
7.1
15
019
220/240-1-50
197/254
6.8
45.0
0.9
8.6
10.5
15
024
220/240-1-50
197/254
8.2
51.0
1.6
10.4
12.6
20
030
220/240-1-50
197/254
9.1
54.0
1.7
11.2
13.6
20
380-415-3-50
342/462
3.3
25.0
1.0
4.3
5.2
15
036
220/240-1-50
197/254
11.5
83.0
2.7
17.2
20.8
35
380-415-3-50
342/462
4.2
32.0
1.7
5.9
6.0
15
042
380-415-3-50
342/462
5.5
34.5
1.7
6.0
7.1
15
048
380-415-3-50
342/462
5.9
42.0
1.8
7.5
8.9
15
060
380-415-3-50
342/462
8.2
61.8
2.5
9.9
11.8
15
Legend
FLA
- Full load amperes
HACR - Heating, air conditioning and refrigeration
LRA
- Locked rotor amperes
RLA
- Rated load amperes
3.8.1 - Power connection
Make line voltage connection by connecting the incoming line
voltage wires to the L side of the CC terminal as shown in Fig. 13.
See Table 3 for correct wire and maximum overcurrent protection
sizing.
3.8.2 - Supply voltage
Operating voltage to unit must be within voltage range indicated
on unit nameplate.
On 3-phase units, voltages under load between phases must be
balanced within 2%. Use the following formula to determine
the percentage voltage imbalance:
% voltage imbalance
= 100 x
Example: Supply voltage is 460-3-60.
AB = 452 Volts
BC = 464 Volts
AC = 455 Volts
Average voltage =
=
= 457
Determine maximum deviation from average voltage:
(AB) 457 - 452 = 5 V
(BC) 464 - 457 = 7 V
(AC) 457 - 455 = 2 V
Maximum deviation is 7 V.
Determine percent voltage imbalance.
% voltage imbalance = 100 x
= 1.53%
max. voltage deviation from average voltage
average voltage
452 + 464 + 455
3
7
457
This amount of phase imbalance is satisfactory as it is below
the maximum allowable 2%.
Operation on improper line voltage or excessive phase imbalance
constitutes abuse and may cause damage to electrical components.
NOTE: If more than 2% voltage imbalance is present, contact
local electric utility.
3.8.3 - 220-Volt operation
All 220-240-Volt units are factory wired for 208 Volts. The trans-
formers may be switched to 220-Volt operation by switching
the red (220-Volt) wire with the orange (240-Volt) wire at the
TB1-1 terminal for single-phase and TB1-3 for 3-phase.
Fig. 13 - 50RHE typical single-phase line voltage
power connection
1371
3
Capacitor
Circuit breaker
Connector CC
Unit power supply. See
electrical data table for
wire and breaker size.
Transformer
Aquazone
‘C’ control
Low voltage
connector
Motor
