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(4)Any damage caused by the improper external wiring shall be at the installer’s expense.
WARNING
Only copper conductor is allowed.
■ How to wire the power lines to the electric box
(1)The power cord must be routed inside the conduit.
(2)The power cord must enter the electric box through a rubber or plastic ring to avoid any
damaged caused by the sharp edge of the metal sheet.
(3)The power cord close to the electric box must be attached securely to prevent the
terminal block of the electric box affected by the outside force. The Power cord shall
be installed with a suitable cord anchorage against cord loosing.
(4)The unit shall be grounded reliably and never connect the ground wire with the gas fuel
pipe, water pipe, lightening rod or telephone line.
(5)After wiring, O-rings should be tightened to prevent coming of insects.
■ Control Line
(1)The field supplied control line shall be at a minimum 1mm
2
.
(2)The electric box will send the control signal (220 AC, 5A) to control the chilled water
pump and auxiliary electric heater, however, never do not drive them directly through
the control signal but through their AC contactors.
(3)Switching signals (220VAC, 2A) for the running and error indicators are available for
the electric box.
(4)The remote switch control signal is available for the electric box and please pay
attention to the input passive dry contact.
(5)A reasonable length of the control line should be left outside the unit and the rest
should be bundled and fed into the electric box.
(6)The connection line of the display panel and main board is reliably grounded through
the main board. Beside, communication lines between units also should be grounded.
A Series Inverter Modular Air-cooled Chiller (Heat Pump)
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