Hitachi YUTAKI S80 Series Installation And Operation Manual page 45

INSTALLATION
Extension cables (supplied with the ATW-FWP-01 ac-
cessory)
When the domestic hot water tank is installed beside the indoor
unit, it is needed to extend the cables up to the terminal board 2
(TB2) of the indoor unit, which is place at certain distance from
the tank. These cables are the following:
Extension cable for the electric heater
Extension cable for the thermistor
Extension cable for the LCD controller

Cables connection
Electric heater of the tank
1 Cut and strip the free end of the 3 wires of the factory supplied
electric heater cable.
1.1)
2 Connect the extension cable to the factory supplied cable.
2.1)
(Factory supplied cable)
(*)
2.2)
(Factory supplied cable)
(*): Use a crimping tool to crimp the cables.
45 PMML0291A rev.2 - 09/2014
1.2)
(Extension cable)
(Extension cable)
3 Take this extension cable, pass it behind the partition plate
and wire the cable to the two clamps located at the left side
and upper part of the indoor unit.
(Front view)
4 Take the extension cable to the Electrical Box 1 and pass it
through one of the upper holes. Connect the earth wire to the
14th terminal and the other two wires to the 24 and 25 con-
nections of the Terminal Board 2.
(Extension cable)
Holes to the TB2
N O T E
• Do not touch the Manual safety reset of the electrical heater.
• Do not touch the temperature regulator unless the tank is
working in "emergency" operation due to indoor unit or out-
door unit malfunction. In this case, refer to the section
tank electric heater "emergency"
Heater's
thermostat
Clamps
24
}
25
14
DHW
operation.
Tank
thermistor
(Heater's thermostat)
Manual safety reset
Temperature
regulation knob
Lamp con-
nectors
85ºC