Daikin Altherma 3 H HT F Series, Installation Manual

5 Electrical installation

Installation manual

12

ETVH/9W(G)

Daikin Altherma 3 H HT F

4P586454-1 – 2019.07

Backup

heater type

Backup

heater

capacity

Power

supply

Maximum

running

current

Z

max

*6V

2 kW

1N~ 230 V

(a)

9 A

—

4 kW

1N~ 230 V

(a)

17 A

(b)(c)

0.22 Ω

6 kW

1N~ 230 V

(a)

26 A

(b)(c)

0.22 Ω

2 kW

3~ 230 V

(d)

5 A

—

4 kW

3~ 230 V

(d)

10 A

—

6 kW

3~ 230 V

(d)

15 A

—

*9W

3 kW

3N~ 400 V

4 A

—

6 kW

3N~ 400 V

9 A

—

9 kW

3N~ 400 V

13 A

—

(a)

6V

(b)

Electrical equipment complying with EN/IEC 61000-3-12
(European/International Technical Standard setting the
limits for harmonic currents produced by equipment
connected to public low-voltage systems with input
current >16 A and ≤75 A per phase).

(c)

This equipment complies with EN/IEC 61000‑3‑11
(European/International Technical Standard setting the
limits for voltage changes, voltage fluctuations and
flicker in public low-voltage supply systems for
equipment with rated current ≤75 A) provided that the
system impedance Z

sys

 is less than or equal to Z

max

 at

the interface point between the user's supply and the
public system. It is the responsibility of the installer or
user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with a system
impedance Z

sys

 less than or equal to Z

max

.

(d)

6T1

Connect the backup heater power supply as follows:

X6M

F1B

Q1DI

a

b

a

Factory-mounted cable connected to the backup heater
contactor inside the switch box (K5M)

b

Field wiring (see table below)

Model (power

supply)

Connections to backup heater power

supply

*6V (6V: 1N~ 230 V)

1N~, 50 Hz
230 V AC

SWB

4

3

6

5

2

1

K5M

14

13

Q1DI

1

2

3

4

5

6

7

8

F1B

I

I

I

I

N

L

X6M

BRN

GRY

BLU1

BLU2

Model (power

supply)

Connections to backup heater power

supply

*6V (6T1: 3~ 230 V)

SWB

3~, 50 Hz
230 V AC

4

3

6

5

2

1

K5M

14

13

1

2

3

4

5

6

7

8

F1B

I

I

I

I

Q1DI

L1

L2

L3

X6M

BRN

GRY

BLU1

BLU2

*9W (3N~ 400 V)

3N~, 50 Hz
400 V AC

SWB

Q1DI

L1

L2

L3

N

1

2

3

4

5

6

7

8

F1B

I

I

I

I

X6M

2

1

K5M

4

3

6

5

14

13

BRN

GRY

BLK

BLU

F1B

Overcurrent fuse (field supply). Recommended fuse:
4‑pole; 20 A; curve 400 V; tripping class C.

K5M

Safety contactor (in the lower switch box)

Q1DI

Earth leakage circuit breaker (field supply)

SWB

Switch box

X6M

Terminal (field supply)

NOTICE

Do  NOT  cut  or  remove  the  backup  heater  power  supply
cable.

5.2.3

To connect the shut-off valve

INFORMATION

Shut-off valve usage example.

 In case of one LWT zone,

and  a  combination  of  underfloor  heating  and  heat  pump
convectors,  install  a  shut-off  valve  before  the  underfloor
heating to prevent condensation on the floor during cooling
operation. For more information, see the installer reference
guide.

Wires: 2×0.75 mm²

Maximum running current: 100 mA

230 V AC supplied by PCB

[2.D] 

Shut off valve

1

Open the following (see 

"3.2.1 To open the indoor unit" 

[

4

 4]):