AB-6569
6
Wiring Connection
WARNING
DANGER: To prevent the risk of severe or fatal electrical shock, always disconnect power source and product
power supply before performing any wiring.
Make sure all the wires are tightly connected. Loose connection can cause burn injury due to heat generation or
fire.
Be sure to ground with 100
or lower ground resistance. Improper ground can cause electrical shock or product
fault.
Wire strip length to be connected to the quick-fit screwless terminal block must be 5 mm to 6 mm. If the strip length
is longer than 5 to 6 mm, the conductor will be exposed, causing electrical shock or short circuit between adjacent
terminals. If it is shorter, the conductor will not contact the connector.
CAUTION
Use crimp terminal lugs with insulation for electric wires connected to the screw terminals.
If more than the rated power supply voltage is applied, product replacement is required for safety.
<Valve ON/OFF control type: Model WY5305W1000>
Figure 4. Wiring connection for Model WY5305W1000
Valve wiring
Chilled water valve
Connect to terminals 4 and 5. Leave terminals 6 and 7 unconnected.
Hot water valve
Connect to terminals 4 and 5. Leave terminals 6 and 7 unconnected.
Chilled/hot water valve
Connect to terminals 4 and 5. Leave terminals 6 and 7 unconnected.
Chilled water valve + hot water valve
Connect to terminals 4 and 5 for chilled water valve.
Connect to terminals 6 and 7 for hot water valve.
Chilled water valve + chilled/hot water valve*
Connect to terminals 4 and 5 for chilled water valve.
Connect to terminals 6 and 7 for chilled/hot water valve.
Note: Order of valve open/close operation can be set with parameters.
IMPORTANT:
Power for the valve actuators is supplied from FCU via Infilex FC. Since the actuator power supply cannot be
separated from the FCU, the valves, unless the valve type is spring-return, will not be fully closed (in 0%
position) when the fan is turned off. (A valve in fully closed position is exceptional.)
User
terminal
Temperature
sensor
FAN
100-240 V AC
Ground resistance:
100
or lower
Valves with
actuators
14
13
12
11
9
8
10
1
2
3
7
5
4
6
Connected to another Infilex FC
(For Infilex FC combined with BMS)
Connected to Infilex ZM or
another Infilex FC
(For Infilex FC combined with BMS)
Infilex FC
CN1
CN2
CN3
CN4
USER I/F Pt100
LS-bus
IN
LS-bus
OUT
Contact for
cooling/heating
changeover
(For standalone
Infilex FC)
COM
L
M
H
For fan ON/OFF output,
connect terminals 11 (COM)
and 12 (L) to FCU.
