Gree SXVD200LCJ/A-K, Service Manual

Page: 88 / 170

AIR-TO-WATER HEAT PUMP INSTALLATION
83
Note:
①
No additional charge of the refrigerant is need when the pipe length is less than 10 m
(the standard pipe length is 7.5m) , f the pipe length is longer than 10 m ,additional
charge of the refrigerant is needed according to the table.
Example: if 16kw model is installed at a distance of 25m, (25-10)*50=750g refrigerant
should be added;
②
Rated capacity is based on standard pipe length and maximum allowable length is
base on the product reliability in the operation.
③
Oil trap should be installed every 5-7 meters when the location of outdoor unit is
higher than indoor unit.
2 ELECTRIC WIRING WORK
2.1 Wiring Principle
(1).General principles
‹ Wires, equipment and connectors supplied for use on the site must be in
compliance with provisions of regulations and engineering requirements.
‹ Only electricians holding qualification are allowed to perform wire connection on
the site.
‹ Before connection work is started, the power supply must be shut off.
‹ Installer shall be responsible for any damage due to incorrect connection of the
external circuit of the unit.
‹ Caution --- MUST use copper wires.
(2). Connection of power cable to the electric cabinet of the unit
‹ Power cables should be laid out through cabling trough, conduit tube or cable
channel.
‹ Power cables to be connected into the electric cabinet must be protected with
rubber or plastic to prevent scratch by edge of metal plate.
‹ Power cables close to the electric cabinet of the unit must be fixed reliably to
make the power terminal in the cabinet free from an external force.
‹ Power cable must be grounded reliably.