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
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