5 Electrical installation
Installation manual
12
EPRA14~W1
Daikin Altherma 3 H HT
4P586100-1 – 2019.07
Q1DI
1N~,
50 Hz,
230 V AC
F1B
1
3
2
4
I
I
BRN
BLU
YLW/GRN
b
a
L
N
a
Factory-mounted power supply cable
b
Field wiring
F1B
Overcurrent fuse (field supply). Recommended fuse: 2
pole, 32 A fuse, C curve.
Q1DI
Earth leakage circuit breaker (30 mA)(field supply)
2
Interconnection cable
(indoor↔outdoor):
▪ Route the cable through the frame.
▪ Connect the wires to the terminal block (make sure the
numbers match with the numbers on the indoor unit) and the
earth screw.
▪ Fix the cable with a cable tie.
Wires: (3+GND)×1.5 mm²
—
1 2 3
1
2
3
3
(Optional)
Drain tube heater cable
:
▪ Make sure the heating element of the drain tube heater is
completely inside the drain tube.
▪ Route the cable through the frame.
▪ Connect the wires to the terminal block and the earth screw.
▪ Fix the cable with cable ties.
Wires: (2+GND)×0.75 mm². Wiring must be double insulated.
Maximum power allowed for drain tube heater = 115 W (0.5 A)
—
L N PE
1 2
4
(Optional)
Power saving function
: If you want to use the
power saving function:
▪ Disconnect X804A from X805A.
▪ Connect X804A to X806A.
X806A
X804A
X805A
INFORMATION
Power saving function.
The power saving function is only
applicable for V3 models. For more information about the
power saving function ([9.F] or overview field setting
[E‑08]), see the installer reference guide.
5.3.2
In case of W1 models
1
Power supply cable
:
