AUKS AFC-1000CF/4, Техническое руководство

Страница: 20 / 60

AUKS Fan CoilUnit information
20
◇ When finish installation,please carry out the drainage test to ensure that the water flow through the
pipeline fluently, and carefully observe the junction to ensure that there is no water leakage at the
junction. If the unit is installed in the newly built house, strongly recommend that this test taken before
the ceiling installation. Even it is the heating only unit, this test is unavoidable.
6.3 Electrical connection
precaution
Warning
Installation of electric items must be carried out by qualified, professional technicians. An isolated circuitry
should be fixed with whole-pole disconnection devices, which is with at least 3mm gap of touch point. .
Power supply and indoor to outdoor connection should use special cable. Providing the necessity of
installation or replacement, the professional technician of service store appointed by manufacturer must
be required, while self-operation by users is prohibited.
In case of any electric shock accident, the creepage protection devices /power supply on-off and breaker
must be required with power supply.
Machine must be earthed surely. If not, it’ll be probably caused creepage.
The power cord shall consist wires of 227IEC53(RVV) type specified in GB5023 or those of equivalent
grades or above . Secure the wires with fixtures, so that the terminals will not easily dislodge under
external forces. Incorrect connection or fixing may cause a fire or other hazards. The internal and external
connecting cable shall consist wires of 245IEC57(YZW) type specified in GB5013 or those of equivalent
grades or above.
Notice
The earth line is neither allowed to connect to gas pipe, water pipe or circuitry of telephone or lighting rod,
nor to the earth line of other devices.
Others
●Please connect the power cord according to the instructions of the circuit diagram.
●Securely and firmly connect the wires to the terminal holder with cable fixtures, to prevent the external
forces from acting on the wires and causing dangers.
6.4 Pressure testing and test run with water
.
Preparation before test run
◇
Before initial operation, please remove foreign matters in the water tray, plastics and around the fan coil
and check if the installation points of the water pipes and the cables are correct.
◇ Before initial operation, the water inlet and outlet valves of the unit shall be closed first and the pipe
system of the cooling water be cleaned before opening the valves.
◇
During the initial operation, the ventilation valve on the water return pipe shall be opened to exhaust the
air from the fan coil and the pipeline.
Pressure testing and test run with water
Before carrying out system pressure testing for an AC system equipped with a buriedly and horizontally
installed fan coil, a pressure testing plan shall be prepared and a proper pressure test pump be selected.
The test conditions shall be carefully noted during the testing and the pressure change of he system shall
be monitored from time to time.
Be careful about the following when preparing the pressure test plan:
a. The ventilation valve on the water collecting head shall be opened before adding water to the fan coil.
Waite until the air in the fan coil is emptied before closing the valve.
b. Pressure test shall be carried out at a temperature of 5 ℃ or above, otherwise there shall be
anti-freezing measure in place.
c. During the water pressure test, the pressure shall be increased in a staged, slow and uniform manner.
Wait until the water pump is stopped and water pressured stable before carefully check if there id water