Connection options for IEC-fans

Note: This option is only for Solar SR™ models.


	WARNING: Fans with Inverter: Terminals and connections have voltage even in a unit that is shut off. Electric shock. Wait for 15 minutes after disconnecting the voltage at all poles before opening the device.
	WARNING: Ensure free space in front of the electrical cabinet according to local regulations.


Electrical options for IEC-fans		Code
Control panel	Motor Protective Switch Panel (always EMC)	B
	Starter Panel	SP
	Motor Protective Switch Panel and Frequency Converter (always EMC)	BFC
	Motor Protective Switch Panel, Frequency Converter and Temperature-probe (always EMC)	BFCT
Connection Box	Connection Box (Terminal Box)	CB
Connection Box	Connection Box - EMC	CB…EMC

Table 1. Cable lengths for SR™ models
Fan size ø 900 mm				Fan size ø 1200 mm
SRM™	Cable [m]	SRD™	Cable [m]	SRD™	Cable [m]
1A	4.1	2A	21.2	2A	11.2
1B	4.3	2B	22.8	2B	11.4
2A	9.6	2C	24.0	2C	12.0
2B	10.4	3A	36.0	3A	18.9
3A	16.5	3B	39.6	3B	19.8
3B	18.3	3C	42.3	3C	21.2
4A	25.0	4A	55.2	4A	28.8
4B	28.2	4B	61.6	4B	30.8
5A	34.8	4C	66.4	4C	33.2
5B	39.8	5A	76.0	5A	39.5
-	-	5B	86.0	5B	43.0
-	-	5C	93.5	5C	46.8
-	-	6A	99.6	6A	51.6
-	-	6B	114	6B	57.0
-	-	6C	125	6C	62.4
-	-	7A	126	7A	65.1
-	-	7B	130	7B	64.7

CB: Connection box: Fan power supply cables are wired to the unit end. EMC is optional.
SP: Starter panel: The panel includes one main contactor. When you close the customer’s external potential free contact, all the fans go ON at the same time. When you open the contact, the fans go OFF. Fan power supply cables are wired to the unit end. The fan motors are supplied via tripping circuit breakers measuring both overcurrent and short circuit current. The electrical panel is equipped with a power main switch.
B: Motor protective switch panel: Fan power supply cables are wired to the unit end. The fan motors are supplied via tripping circuit breakers measuring both overcurrent and short circuit current. Customer only needs to bring main power to the electrical panel. The electrical panel is equipped with a power main switch. EMC is a standard option.
BFC: Motor protective switch panel and frequency converter: Inverter control provides continuous fan speed control for the liquid coolers. Fan power supply cables are wired to the unit end. The fan motors are supplied via tripping circuit breakers measuring both overcurrent and short circuit current. The electrical panel is equipped with a power main switch and a manual bypass switch. EMC is a standard option.
BFCT: Motor protective switch panel, frequency converter and temperature probe: Provides temperature control for the liquid coolers. Fan power supply cables are wired to the unit end. The fan motors are supplied via tripping circuit breakers measuring both overcurrent and short circuit current. The electrical panel is equipped with a power main switch and a manual bypass switch. EMC is a standard option.
Figure: BFCT: Temperature probe installation to outlet connection

Caution: BFC and BFCT: Never turn the bypass switch when the fans are running.

Note: BFCT: Ensure that the instrument cable to the temperature probe is cabled downward to avoid water penetration through the cable inlet to the probe.

Note: BFC and BFCT: Not available for SR™ models with V-position.

Control panels have been pre-configured and test run at the factory, including a test run of the fans and inspection of the regulator. See the product-specific documentation of Alfa LU-VE Control Panels.

The delivery includes the necessary documentation for the control system and electrical panel. The documentation is in the electrical panel.

The cables corresponding to the EMC standard are connected to the unit end. See the normative cable lengths in Cable lengths for SR™ models. The lengths may be different when you are using special equipment or special cables. If the model type is not listed below, contact Fincoil LU-VE Oy for information.