AIR-TO-WATER HEAT PUMP INSTALLATION
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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.
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