Hanbell RC2-D, Техническое руководство

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RC2-D Technical Manual
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8.1.8 Capacity state during startup
In order to start the compressor, the starting torque must be higher than its resistance torque. To this
end, the compressor must start at the minimum capacity state (25% or 33%).
8.1.9 Startup times
RC2-100~580D can start up to 6 times per hour at most, and RC2-620~930D can start up to 4 times
per hour at most; Operation at least 5 minutes each time.
8.1.10 Compressor start
The table below is the check list which needs to be done before the compressor start.
Item Main points to check Corresponding status
Appearance
1. System valve status
2. Capacity –control
solenoid valve
3. Capillary 1. Open
2. Installed
3. No severe distortion and damage
Electrical system
1. Main power supply
voltage
2. Control circuit
voltage
3.Insulation resistance
between the motor
interphase &
insulation resistance of
ground
4. Connection of
power supply
5. Grounding wire
installation
6. Switch, sensor and
controller settings 1. The range of voltage fluctuation is controlled within 5% of
the rated voltage, and the instantaneous voltage drop is less
than 10%.
2. Standard voltage is 220V±10%; for special requirements,
please contact Hanbell.
3. The insulation should be higher than 5 MΩ.
4. The power supply is connected to the terminal box and it
should have good insulation. The power line should be far
away from the heat source and metal parts with edges and
corners to avoid the damage of the insulation skin. The
power supply should be well installed and shall have good
insulation. Terminal box and bolt shall be provided.
5. Confirmation of installation.
6. Refer to Chapter of Protection Device.
Piping system
1. Output piping
system
2. Leakage test
3. Compressor fixing
bolts 1. Proper installation
2. No leakage
3. Well locked
Safety device
1. Motor coil sensor
PTC (thermistor)
2. Discharge temp
sensor PTC
3. Controller
4. Motor coil temp
sensor NTC 1. Connect to the controller together with the discharge
temperature sensor
2. Connect to the controller together with the motor
temperature sensor
3. Closed circuit.
4. Connect to the control system and display on the screen.
In addition to the items which need to be checked in the above table, th e following
contents should be considered before start-up as well:
1. When the condensing sytem operates on site, special attention should be paid to its
auxiliary equipment, as well as the maintenance period after the initial start-up.
2. In order to keep the viscosity of lubricating oil normal at low ambient temperature and
the smooth of capacity-control, it is recommended to keep the oil heater on the external
oil separator open as soon as the compressor is switched off in order to prepare for the
next start-up.