7. Electrical Wiring
15 _ Air-to-Water Heat Pump
Part 2. Desing and installation
◆ Wire specification
Power cable specification : The power cord connected to the unit should be complied with IEC 60245 or HD 22.4 S4
(Rubber insulated cord, type 60245 IEC 66 or H07RN-F)
Terminal specification of power cable and related cautions :
Use round pressure terminals for connections to the power terminal block.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to
avoid a hazard.
When none are available, follow the instructions below.
• Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal
heat.)
• When connecting wiring which is the same thickness, do as shown in the figure below.
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