Electrical Power Supply To The Pumps; Water Pump Control; Table 2 - Electrical Data Of Optional Pumps - Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual

Electrical power supply to the pumps

On request, for versions where this is possible, a kit can be installed in the machine for fully-cabled, microprocessor-
controlled pumping. No additional control is required in this case.

Table 2 - Electrical data of optional pumps

Single pump
Unit
Version
model
250
270
290
320
340
370
EWYD~BZSS
380
410
440
460
510
520
580
Twin pumps
Version Unit model
250
270
290
320
330
360
EWYD~BZSL 370
400
430
450
490
510
570

Water pump control

Connect the control contactor coil power supply to terminals 27 and 28 (pump #1) and 401 and 402 (pump 2) located on
terminal board M3, and install the contactor on a power supply having the same voltage as the pump contactor coil. The
terminals are connected to a clean microprocessor contact.
The microprocessor contact has the following commutation capacity:
Maximum voltage:
Maximum current:
Reference standard:
The wiring described above allows the microprocessor to manage the water pump automatically. It is good practice to
install a clean status contact on the pump's thermal-magnetic circuit breaker and to connect it in series with the flow
switch.
Motor power
KW
Low lif High lif
2.2 3.0
3.0 4.0
4.0 5.5
4.0 5.5
4.0 5.5
4.0 5.5
4.0 7.5
4.0 7.5
5.5 7.5
5.5 7.5
5.5 7.5
7.5 11.0
7.5 11.0
Motor power
KW
Low lif High lif
3.0 4.0
4.0 5.5
4.0 5.5
4.0 5.5
5.5 7.5
5.5 7.5
5.5 7.5
5.5 7.5
5.5 7.5
5.5 7.5
7.5 11.0
7.5 11.0
7.5 11.0
250 Vac
2A Resistive - 2A Inductive
EN 60730-1
Current
A
Low lif High lift
5.0 6.3
6.3 7.7
7.7 10.4
7.7 10.4
7.7 10.4
7.7 10.4
7.7 13.9
7.7 13.9
10.4 13.9
10.4 13.9
10.4 13.9
13.9 20.2
13.9 20.2
Current
A
Low lif High lift
6.3 7.7
7.7 10.4
7.7 10.4
7.7 10.4
10.4 13.9
10.4 13.9
10.4 13.9
10.4 13.9
10.4 13.9
10.4 13.9
13.9 20.2
13.9 20.2
13.9 20.2
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