Sound Power; Electric Data - Carrier 50TCN120 Instrucciones De Instalación

Sound power

Electric Data

Voltages and Currents 50TCN120-140 (3 - 380 - 50Hz)
Unit
Voltage
50TCN
Min
380-3-50
120 342
140 380-3-50
342
REFERENCES
FLA – Full Load Amps
HACR - Heating, Air Conditioning and Refrigeration
IFM – Inside Fan Motor (Evaporator)
LRA – Locked Rotor Amps
MCA – Minimum Circuit Capacity.
MOCP – Maximum Overcurrent Protection.
NEC – National Electric Code.
OFM – Outside Fan Motor (Condenser)
RLA – Maximum Load in Amps.
* Fuse or cutting circuit HACR.
Note: Three-phase power supply in case of
imbalance.
Never operate a motor when the imbalance is
higher then 2%. Use the following formula to
calculate the phase imbalance:
To connect the unit to the electric mains, a
disconnect device with a contact separation
larger than 3mm in all poles must be provided.
Voltage imbalance (%)
=Maximum deviation for the voltage average x 100
Voltage average
Unit Dimensions
120
140
Voltage
Compresor
Range
Max RLA LRA
418 8,61 73 c/u
418 10,30 73 c/u
Sound performance (dBA)
85
85
OFM IFM
Hp FLA Hp
2,5A
2 x ⅓Hp 2
2,5A 3
2 x ⅓Hp
Example: Supplied voltage: 380V- 3-phase-50Hz
Measurements:
Voltage average
Maximum deviation of the voltage average:
AB=383V-378V=5V
BC=378V-378V=0V
AC=378V-374V=4V
Largest difference is 5V. Then, the % of voltage
imbalance is:
5 x 100= 1,32% (OK)
378
Notes: The causes of the voltage imbalance can be:
* Bad contact (contactor contacts, electric
connections, loosened cables, oxidized or
carbonized conduits)
* Improper piping connections.
The current imbalance calculation must be made in
a way similar to the voltage imbalance.
Power supply fuse
or BRKR
MCA
FLA
3,7A 25
5,4A 30
AB=383V
BC=378V
AC=374V
383 + 378 + 374 : 378V
3
MOCP*
30
40
39