Wiring and Water Piping for Unit
Installation Manual
37
ENGLISH
4. Wiring and Water Piping for Unit
Procedures about water piping and electric wiring are described in this chapter. Water piping and water
circuit connection, water charging, pipe insulations will be shown for water piping procedures.
Accessories connection, such as electric heater, sanitary water tank, thermostat, 3way or 2way valves, etc
will be dealt in separated chapter.
Electrical Wiring
Power cable is a cable which is used to supply external electricity to the unit. This cable is generally
connected between external power source (such as main electric power distribution panel of user's house)
and the unit.
Procedure for wiring to the unit is four steps. Before starting wiring, check if wire specification is suitable
and read following directions and cautions VERY carefully.
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)
Round pressure terminal
Power wire
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.
20mm
GN/YL
1 Phase(Ø)
Содержание AHBW Series
Страница 26: ...General Information 26 Air to Water Heat Pump Wiring Diagram Including Field Wiring AHBW0 6A0 ...
Страница 27: ...General Information Installation Manual 27 ENGLISH Wiring Diagram Including Field Wiring AHBW1 6A0 ...
Страница 28: ...General Information 28 Air to Water Heat Pump Wiring Diagram Including Field Wiring AHBW 8A0 ...
Страница 29: ...General Information Installation Manual 29 ENGLISH Wiring Diagram Including Field Wiring AHBW036H0 ...
Страница 81: ......