Hanbell RC2 Series, Инструкция по установке и запуску

Страница: 7 / 41

COMPRESSOR INSTALLATION & START-UP GUIDE REVISION M
7
1. If the compressor application is low voltage, the following items should be considered:
2. Use conduit to insulate and protect the main power cables between the control panel and compressors’ electrical
terminal box.
3. Press each main power cable connecting head with bolts firmly on each power terminal in electrical terminal box.
Keep enough space and distance between the main power cable heads.
4. Choose suitable electrical accessories to meet the required critical running conditions. An AC-3 contactor is
recommended to meet the rated capacity of power. Select an overload protector with a response time of 15 seconds
for overload.
5.
Ensure the electricity voltage drop between each two phases is less than 2%. If unable to reduce the length of main
power cable then a larger diameter of main power cable should be chosen. Please refer to Figure 7-A shown below.
The chart below is an estimate for wire sizes based on maximum continuous current being used.
Local electrical codes should be followed prior to wiring the compressor and selecting a wire size.
Main power cable Size
AWG / MCM (mm
2
)
8 awg
(8 mm
2
)
6 awg
(14 mm
2
)
4 awg
(22 mm
2
)
2 awg
(30 mm
2
)
1 awg
(38 mm
2
)
0 awg
(50 mm
2
)
00 awg
(60 mm
2
)
3/0 awg
(80mm
2
)
4/0 awg
(100 mm
2
)
4/0 awg
(125 mm
2
)
300 mcm
(150 mm
2
)
500 mcm
(200 mm
2
)
Maximum continuous current
(Amp)
55 80 100 125 145 175 200 230 270 310 360 425
Table 7-A Main Power Cable Size vs MCC
Maximum main power cable temperature is at 60°C. Maximum ambient temperature is at 35°C.
6. To avoid any danger or accidents due to the shortage of electrical power, you are required to follow local Electrical
Regulations for the grounding of the electrical terminal box, heater and compressor body etc.
7. The motor PTC and discharge PTC are temperature sensors with a quick response in relation to the temperature
approach to their setpoint. The thermisters must be connected in series to a controller (INT69HBY – Kriwan provided
with the compressor) in the terminal box for protection of the compressor. An alarm for the motor protector is required to
be embedded on the control panel as an indicator. Do not bypass/jump-out the INT69HBY to start and run the compressor.
Warning: Reverse rotation of the compressor will cause compressor damage
and will void the compressor warranty.
Chapter - 4. Electrical Wiring