Azbil Infilex FC User manual

AB-6569
 Azbil Corporation’s controller Infilex series: Infilex is named for “Infinity” and “Flexible”.
© 2005–2018 Azbil Corporation All Rights Reserved.
1
Specifications/Instructions
Infilex FC
Fan Coil Unit Controller
Overview
Infilex FC (Infilex: named for “Infinity” and “Flexible”) Model
WY5305 provides digital control of fan coil units (FCU). In
addition to FCU start/stop operation, valve control, and fan
speed changeover, Infilex FC provides advanced controls
such as setback and interlock operations with outdoor air
handling unit (OAHU).
Infilex FC can interface with user terminals to allow the end
users to operate the FCU.
Infilex FC can directly communicate with the center unit of an
integrated Building Management System (BMS), Azbil
Corporation’s savic-net series. That is, scheduled operation,
operating status, and temperature measurement of the FCU
can be centrally monitored and controlled.
Features
 Compact size
Small sized body fits inside an FCU.
 Easy installation
Connectors facilitate wiring installation.
 Two kinds of FCU control
Valve ON/OFF control and valve proportional control for
FCU are available.
 Various connectable terminals
In addition to the temperature sensor, digital and analog
user terminals can be connected to the Infilex FC.
 L
ONMARK certified product
FCU control network is configured with LonTalk
protocol. Infilex FC (Model WY5305WXXXX-1) is
LONMARK (version 3.4) certified and thus interoperable
integrated in the LONWORKS system.
 CE Marking certified product
Infilex FC Models WY5305W1000, WY5305W2010
conform to all the applicable standards of CE Marking
(Class A).
Model Numbers
WY5305 Base model number
W Power:
100 V AC to 240 V AC
1 Valve ON/OFF control
2 Valve proportional control
0 Fixed
0 Without DI (digital input)
1 With DI  2 pts.
0 Fixed
-0 LONMARK
 uncertified
-1 LONMARK
 certified
Note:
Base model number is available with the following suffix numbers:
W1000-1, W1000-0, W2010-1, W2010-0

AB-6569
2
Safety Precautions
Please read instructions carefully and use the product as specified in this manual. Be sure to keep this manual nearby for quick
reference.
Restrictions on Use
This product was developed, designed, and manufactured for general air conditioning use.
Do not use the product in a situation where human life may be at risk or for nuclear applications in radiation controlled areas.
If you wish to use the product in a radiation controlled area, please contact Azbil Corporation.
Particularly when the product is used in the following applications where safety is required, implementation of fail-safe design,
redundant design, regular maintenance, etc., should be considered in order to use the product safely and reliably.
• Safety devices for protecting the human body
• Start/stop control devices for transportation machines
• Aeronautical/aerospace machines
For system design, application design, instructions for use, or product applications, please contact Azbil Corporation.
Azbil Corporation bears no responsibility for any result, or lack of result, deriving from the customer's use of the product.
Warnings and Cautions
 WARNING Alerts users that improper handling may cause death or serious injury.
 CAUTION Alerts users that improper handling may cause minor injury or material loss.
Signs
 Alerts users to possible hazardous conditions caused by erroneous operation or erroneous use. The symbol inside 
indicates the specific type of danger. (For example, the sign on the left warns of the risk of electric shock.)
 Notifies users that specific actions are prohibited to prevent possible danger. The symbol inside  graphically
indicates the prohibited action. (For example, the sign on the left means that disassembly is prohibited.)
 Instructs users to carry out a specific obligatory action to prevent possible danger. The symbol inside ● graphically
indicates the actual action to be carried out. (For example, the sign on the left indicates general instructions.)
 WARNING
  DANGER: To prevent the risk of severe or fatal electrical shock, always disconnect power source and product
power supply before performing any wiring.
  Do not disassemble the product. Disassembly may result in electrical shock or equipment damage.
  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 (1/2)
  Installation and wiring must be performed by qualified personnel in accordance with all applicable safety
standards.
  All wiring must comply with local codes of indoor wiring and electric installation rules.
  Use crimp terminal lugs with insulation for electric wires connected to the screw terminals.
  Connect cables to the power source with terminals lugs or the like for permanent connection.

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CAUTION (1/2)

 Do not detach the terminal cover except when connecting or disconnecting wires. After connecting or
disconnecting them, be sure to reattach the terminal cover. Make sure that the terminals and wires are not
current-carrying when attaching or detaching the terminal cover.
  This product does not have a power switch. Be sure to install a power circuit breaker for the power source.
  This product must be operated under the operating conditions (power, temperature, humidity, vibration, shock,
installation position, atmospheric condition, etc) specified in this manual to prevent equipment damage.
  This product must be operated within its rated operating ranges specified in this manual. Failure to comply will
cause equipment damage.
  If more than the rated power supply voltage is applied, product replacement is required for safety.
  Dispose of this product for waste disposal in accordance with your local regulations. Do not reuse all or a part of
this product.
System Configurations
Infilex FC integrated into savic-net FX BMS
Note:
 MIS may be used instead of SMS and DSS for your system. Note that MIS cannot be mixed with SMS or DSS in the same system.
 On LS-bus, max. 50 remote units (also called ‘sub-controllers’) can be connected.
 On LC-bus (2 lines for 1 channel), max. 50 remote units (also called ‘controllers’) can be connected. For Infilex ZM, however, max. 10 units
can be connected on LC-bus (5 units per line, 2 lines for 1 channel).
 Infilex FC, Infilex VC, and Infilex SC can directly connected to LC-bus with their network variables.
 One Neoplate (analog user terminal) or two Neopanel (digital user terminal) can be connected t to one Infilex FC. Neopanel or Neoplate can
share the Infilex FC with a temperature sensor.
Figure 1. System configuration example: Infilex FC integrated into savic-net FX BMS
Infilex SC
Model WY5307W
Infilex AC
Model WY5317C
Infilex GC
Model WY5311
Infilex GD
Model WY5310
PMX-III
Model WY7400
Infilex ZM
Model WY5322
Temperature
sensor
Neopanel
(Model QY7205)
Infilex FC
Model WY5305
BACnet IP
LS-bus (Max. 50 remote units (sub-controllers) connectable.)
DSS: Data Storage Server
LC-bus: LonTalk protocol Controller bus
LS-bus: LonTalk protocol Sub-controller bus
MIS: Management Integration Server
PMX-III: PARAMATRIX-III
SCS: System Core Server
SMS: System Management Server
DSS Client PC
SCS
Infilex VC
Model WY5306
Neopanel
(Model QY7205)
LC-bus (Max. 50 remote units (controllers) connectable.)
SMS
MIS

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Specifications
Basic specifications
Item Specification
Power supply 100 V AC to 240 V AC (85 V AC to 264 V AC) at 50 Hz/60 Hz
Power consumption Valve ON/OFF control type: Max. 6 VA
Valve proportional control type: Max. 7 VA
Operating environmental conditions Temperature:
Humidity:
Altitude:
Vibration:
0 °C to 50 °C
10 %RH to 90 %RH (non-condensing)
2000 m or lower
Max. 3.2 m/s² (at 10 Hz to 150 Hz)
Transport/storage conditions Temperature:
Humidity:
Vibration:
-20 °C to 60 °C
5 %RH to 95 %RH (non-condensing)
Max. 9.8 m/s² (at 10 Hz to 150 Hz) for transport
Max. 3.2 m/s² (at 10 Hz to 150 Hz) for storage
Mounting With two M4 x 10 screws
Address setting Rotary switch setting
Weight Valve ON/OFF control type: 270 g (main unit only)
Valve proportional control type: 480 g (main unit only)
Input/output specifications
Connecting unit Input/output description Input/output specification Connection type Wiring specification
Temperature sensor Temperature input Measuring range: 0 °C to 50 °C (RTD Pt100) Connector*1 LAN cable*2:
Max. 50 m
Control valve*4 ON/OFF output (for valve
ON/OFF control type)
Floating proportional
output (for valve
proportional control type)
Normally open (N.O.) contact
Contact capacity: Max. 0.8 A AC, 125 V AC
Max. 0.4 A AC, 250 V AC
Min. applicable load: 10 mA AC
For the power of valve ON/OFF control type,
the power of the fan is used. Select the
power rating of the ON/OFF valve to be the
same as the FCU power rating.
Quick-fit
screwless
terminal block
JIS*3 CVV 1.25 mm2
or equivalent
(for 24 V AC)/
JIS*4 CVV 2.0 mm2
or equivalent
(for 100 V AC):
Max. 50 m
Fan Fan ON/OFF output
Fan speed changeover
output
Valve ON/OFF
control type
Valve
proportional
control type
(for ‘M’/’H’)
N.O. contact (potential free)
Contact capacity:
Max. 3 A AC, 125 V AC
Max. 1.5 A AC, 250 V AC
Min. applicable load:
10 mA AC
Quick-fit
screwless
terminal block
JIS*4 CVV 2.0 mm2
or equivalent:
Max. 50 m
Valve
proportional
control type
(for ‘L’)
N.O. contact (potential free)
Contact capacity:
Max. 6 A AC, 125 V AC
Max. 3 A AC, 250 V A
Min. applicable load:
10 mA AC
Digital user terminal Temperature setting
FCU start/stop, etc.
Serial voltage transmission
Transmission speed: 100 bps
Connector*1 LAN cable*2:
Max. 50 m
Analog user terminal FCU switch Potential free contact (instantaneous)  1
Applied voltage/current: 12 V DC / 10 mA DC
Connector*1 LAN cable*2:
Max. 50 m
LED output Output type Transistor output
Output
current/voltage
10 mA DC / 12 V DC
Output limited
resistance
1.2 k
Temperature setting
input
Potentiometer input (1 k to 10 k)
Communication line LS-bus
(LonTalk protocol)
Transmission system: LonTalk protocol
(TP/FT-10)
Transmission speed: 78 kbps
Connector*1 LAN cable*2:
Max. 900 m (for bus
topology)
Power supply

100 V AC to 240 V AC (85 V AC to 264 V AC) M3.5 screw
terminal block
JIS*4 CVV 2.0 mm2
or equivalent
External switch, etc. Contact input Potential free contact (maintained)  1
Applied voltage/current: 12 V DC / 5 mA DC
Quick-fit
screwless
terminal block
JIS*4 CVV 1.25 mm2
or equivalent:
Max. 50 m
Notes:
1 For connector connection, use Stewart Connector’s Plug: Model 940-SP-3088R.
This plug is also available at Azbil Corporation. (Part No. DY7207A0100, 100 pieces/set)
2 LAN cable compliant with EIA/TIA-568 Category 3 or over (0.5 mm  4 poles) is required.
For 1 and 2, the cable with connector (Part No. DY7210) and the short cable with connector (Part No. DY7220) are available.
3 JIS: Japanese Industrial Standards.
4 Proportional control valve with less than 30-second operating time (for full stroke) is not applicable. Ask our sales personnel for details.

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100 37
139  1(interval between mounting screws)
150
120 45
189  1(interval between mounting screws)
200
Dimensions
<Valve ON/OFF control type>
Figure 2. Dimensions (mm): Model WY5305W1000
<Valve proportional control type>
Figure 3. Dimensions (mm): Model WY5305W2010

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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
senso
r
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.

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<Valve proportional control type: Model WY5305W2010>
Figure 5. Wiring connection for Model WY5305W2010
Valve wiring
Chilled water valve Connect to terminals 4, 5 and 6. Leave terminals 7, 8 and 9 unconnected.
Hot water valve Connect to terminals 4, 5 and 6. Leave terminals 7, 8 and 9 unconnected.
Chilled/hot water valve Connect to terminals 4, 5 and 6. Leave terminals7, 8 and 9 unconnected.
Chilled water valve + hot water valve Connect to terminals 4, 5 and 6 for chilled water valve.
Connect to terminals 7, 8 and 9 for hot water valve.
Chilled water valve + chilled/hot water valve* Connect to terminals 4, 5 and 6 for chilled water valve.
Connect to terminals7, 8 and 9 for chilled/hot water valve.
Note: Order of valve open/close operation can be set with parameters.
IMPORTANT:
If Infilex FC is used in a 24-hour operation system, be sure to fully close/open the valves (in 0 %/100 %
position) at least once a day. (The valves can be forcibly opened/closed with parameter setting.)
 Note:
Provide a transforme
r
when necessary.
FAN
16 15 13 12 11
1 2 3 5 4 6
100-240 V AC
Ground resistance:
100  or lower

CN1 CN2 CN3 CN4
USER I/F Pt100
LS-bus
IN
LS-bus
OUT
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
)
User
terminal
Temperature
sensor
20 19
H
L M
FCU power
monitoring
circuit
10
8 7 9 14
23 21 24 22
DI  2
p
ts.
DI1 DI2
COM
Infilex FC
(For standalone
Infilex FC
)
FCU
See note.
Valves with
actuators


Open
COM
Close
Open
COM
Close
For fan ON/OFF output,
connect terminals 13 (COM)
and 14 (L) to FCU.

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Installation and Wiring
1) Open the mounting hole.
Open two holes for M4 screws with a 139 mm  1 mm
interval for valve ON/OFF control type / a 189 mm  1
mm interval for valve proportional control type.
Figure 6. Mounting holes for Infilex FC
2) Mount Infilex FC with two M4 screws. Make sure that
Infilex FC is tightly fixed with the screws.
Figure 7. Mounting Infilex FC on a flat surface
IMPORTANT:
Mounting screw tabs of Infilex FC are 5 mm thick
each. When you reuse the mounting screws for
IFC (Intelligent FCU Controller), you may damage
the mounting wall/panel (behind Infilex FC) since
the screws used for IFC are inserted 15 mm
deeper inside the wall/panel.
3) To mount Infilex FC on a threaded rod (9 mm) in the
ceiling, use two cable ties. Put a cable tie through two
holes on the bilateral sides of the M4 screw hole on a
screw tab. Instead of cable ties, two fasteners can be
used to mount Infilex FC on the threaded rod. Refer to
Fig. 8 for mounting with cable ties / fasteners.
Infilex FC mounted on the treaded rod may rotate as an
axis. Do not allow the tension on the cables when wiring.
Figure 8. Mounting Infilex FC on a threaded rod
4) Crimp M3.5 terminal lugs on the power cables, and
connect them to the screw terminals. Connect the
modular cables of LS-bus, user I/F, and Pt100 to the
modular jacks (on Infilex FC) until they click. Pull lightly
out the cables to make sure the modular plugs are
completely connected to the modular jacks.
IMPORTANT:
Do not apply 98 Ncm or larger torque for
connecting the screw terminals.
 WARNING
  To prevent electrical shock, be sure to turn off
the power supply to Infilex FC before connecting
the power cables.
Cable tie
Fastener
Two mounting holes
for M4 screws
139  1 mm:
Valve ON/OFF control type
189  1 mm:
Valve proportional control type
189±1mm
139±1mm

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5) Connect the cables to the quick-fit screwless (clamp)
terminal blocks as follows:
1. Insert a slotted screwdriver into a smaller square hole
(for clamp release) on the terminal blocks located on the
upper and lower side of the front surface.
2. Tilt the screwdriver while pushing it into the hole. (Make
sure the direction to tilt, as shown in Fig. 9.)
When the screwdriver is proceeded to the deep end,
the clamp is completely released.
3. Insert a bare wire (5-6 mm long) into a larger square
hole.
4. Pull out the screwdriver with the bare wire inserted.
Figure 9. Connecting a wire to a quick-fit screwless terminal.
Note:
Regarding wire connection of FCU ON/OFF output, control valve
output, and other inputs, refer to Wiring for FCU ON/OFF
output, control valve output, and other inputs section.
6) Bind the cables with cable ties. If an unbound cable is
strongly pulled, Infilex FC may get damaged. Be sure to
bind the modular cables separately from power cables.
Figure 10. Correct and incorrect cable binding.
IMPORTANT:
Do not position any connected cable on the front
surface of Infilex FC, as shown in Fig. 10.
Precautions for Installation
 For Infilex FC installation, tightly fix with the screws.
 Leave clearance as shown in Figs. 11 and 12. Vertically
mount the Infilex FC (lengthwise). Be sure to mount it in
a location where parts identification indication on the
front surface can be checked.
Figure 11. Clearances for maintenance (mm): front view
Figure 12. Clearances for maintenance (mm): side view
To replace a currently installed IFC (Intelligent Fan Coil Unit
Controller) or Microstat with Infilex FC, a screwdriver with
long grip may not be usable. In such a case, a screwdriver
with short grip or wiring before the installation is required.
1. Insert.
2. Tilt.
3. Insert.
4. Pull out.
Releasing the clamp:
When pushing the screwdriver, tilt
it along the curving surface inside
the s
q
uare hole.
Correct
cable bindin
g
Incorrect
cable binding
[1] 70 or more
[
2
]
140 or more
[1] 20 or more
[
2
]
20 or more
[1] 20 or more
[2] 20 or more
[1] 70 or more
[
2
]
140 or more
Note: [1] for 100 mm long screwdriver
[2] for 200 mm long screwdriver
Min 200
Min. 120
Min. 140
Min. 70
100 mm long
screwdriver
200 mm long
screwdriver
 Same maintenance clearance is required
for the terminals on the lower part.

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 Mount Infilex FC with the front surface facing horizontal
direction unless it is protected in a dust-proof housing.
(See ‘B’ in Fig. 13.) If the Infilex FC is mounted with its
front surface facing the vertical direction (upwards), dust
may accumulate on the connectors. (See ‘A’ in Fig. 13.)
.
Figure 13. Mounding direction
 After a modular plug is inserted into the corresponding
modular jack, lightly pull the modular cable to make sure
the modular plug is completely connected to the modular
jack.
Recommended wires and cables
For recommended wires and cables, refer to the wiring
specifications of Input/output specifications section.
Wire connection for FCU ON/OFF output, control valve
output, and other inputs
Quick-fit screwless terminals are provided for ON/OFF output,
control valve output, status input, and trip alarm input. Follow
the procedure below for connecting these wires. (Refer to Fig.
9.)
1) Remove covers of the terminals to which wires are
connected.
2) Strip the 5-6 mm wire sheath to be connected to. (Scale
is indicated on the front surface. If a bare wire is longer
or shorter than 5-6 mm, it may get exposed or may come
off from the connector.) Make sure that any wire fiber
goes out of the bare wire.
3) Insert a slotted screwdriver into a smaller square hole
(for clamp release) on the terminal blocks located on the
upper and the lower sides of the front surface.
To insert the screwdriver to deep end (approx. 10 mm
deep), push and tilt it (towards the front surface) along
the curving surface inside the square hole.
When the screwdriver is correctly inserted to the deep
end, the clamp is completely released and the
screwdriver remains inserted position by itself.
Notes:
 A slotted screwdriver with the blade 3.5 mm wide and 0.5 mm
thick (straight type) is applicable. A screwdriver with the blade
end narrower than the beginning (shaft side) may not be
applicable.
Applicable screwdriver (an example):
Vessel’s Model 9900 (3 mm wide  100 mm long) or
Model 910 (3 mm wide  75 mm long)
 Since the terminal blocks have the inclined surfaces, required
maintenance clearance varies depending on the length of the
screwdriver to be used. Note that a long screwdriver (80 mm or
longer) may not be usable for the Infilex FC replaced from IFC or
Microstat since IFC or Microstat requires smaller maintenance
clearance.
4) After the a bare wire is fully inserted, remove the
screwdriver with the bare wire inserted.
5) Lightly pull the wires connected to make sure it is completely
held by clamp.
Note for connecting stripped wire of 1.8 mm2 or smaller
cable
1.8 mm2 or thinner cable connected to a quick-fit screwless
terminal may cause short-circuit due to dust accumulated in
clearance of the terminal. (See Fig. 14.)
To prevent short-circuit, put the tubes* through the wires so
that the wire connected terminals are covered. (See Fig. 15.)
Tubes are not supplied with Infilex FC and commercially
available. See Fig. 24 for tube specifications.
 Tubes are also available at Azbil Corporation.
(Part No. 83167219-001, 6 pieces/set)
Figure 14. Dust accumulated in quick-fit screwless terminals
Figure 15. Tubes covering quick-fit screwless terminals
Connection to user terminal / temperature sensor
Wires from user terminal / temperature sensor are connected
to Infilex FC with modular connection. For correctly crimping
modular plugs on LAN cables, refer to the following section.
Dust
Vertical
direction
Horizontal
direction
A: Incorrect B: Correct
Dust
Tubes

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Modular Connector Connection
Modular connector is composed of a modular plug (male)
and a modular jack (female). Modular jacks are provided on
Infilex FC, and modular plugs will be crimped on LAN cables
as requires. Refer to the following procedure for crimping the
modular plugs on the LAN cables and connecting them to the
modular jacks.
For modular plugs, refer to the note 1 in Specifications
section.
Procedure for modular connector connection
1) Strip outer sheath of a LAN cable end. Be sure not to
scratch or peel off any inner conductor sheath when
stripping the outer sheath.
Figure 16. Stripping the outer sheath
Make sure there are 8 inner conductors inside the outer
sheath.
2) Align the 8 inner conductors in a order specified by the
LAN cable manufacturer.
Figure 17. Alignment of the inner conductors
Alignment of the LAN cable inner conductors is shown in
the table below.
Modular pin
number
LAN cable inner
conductor alignment
Color alignment example
1 Line 1 of pair 2 Orange
2 Line 2 of pair 2 White and orange
3 Line 1 of pair 3 Green
4 Line 2 of pair 1 Blue and white
5 Line 1 of pair 1 Blue
6 Line 2 of pair 3 Green and white
7 Line 1 of pair 4 Brown
8 Line 2 of pair 4 Brown and white
 Note:
Color alignment shown above may not agree with your LAN
cable specification. Ask your LAN cable manufacturer for the
latest specification.
3) Insert the aligned inner conductors into a modular plug.
Figure 18. LAN cable insertion into a modular plug
Pin numbers of the modular plug in Fig. 18 shows the pin
number arrangement when you face the side with
contacts and cable stopper.
Before inserting the inner conductors into a modular plug,
even out the length with a nipper. Note that the modular
plug may not be crimped on inner conductors stripped
too long.
4) Crimp the modular plug with the crimping tool.
Completely insert the inner conductors into the modular
plug so that the contacts of the modular plug stick into
the inner conductors when the modular plug is crimped.
Crimped modular plug is secured on the LAN cable with
the cable stopper of the modular pug. Check the
contacts and the cable stopper when crimping the
modular plug.
5) Follow 1) to 4) for the other end of the LAN cable.
6) Check continuity of the LAN cable. Modular continuity
tester (Part No. DY7206A0000) facilitates continuity
check. At the same time, make sure that the inner
conductors are in order with the modular plug contacts
sticking in the conductors and that there is no cable
damage or disconnection.
7) Connect the modular plugs to the modular jacks. When
the continuity check is successfully completed, insert the
LAN cable modular plugs into the modular jacks of Infilex
FC and of user terminal/temperature sensor.
Be sure to completely insert a modular plug until it clicks.
LAN cable
Pin numbers  12345678
Contacts Cable stopper Insert.
LAN cable
10  3 mm
(For the recommended
modular plug)
8
7
6
5
4
3
2
1
LAN cable
Modular
plug
LAN cable
8 inner
conductors

AB-6569
12
Parts Description
 Modular branch unit:
Branches out the communication line for two user
terminals to be connected.
Figure 19. Modular branch unit: Part No. DY7203A0000
 Modular extension unit:
Extends the communication line by connecting to
another communication line.
Figure 20. Modular extension unit: Part No. DY7202A0000
 Adaptor for connecting to a Pt100 sensor:
Connects temperature sensor to Infilex FC with modular
connection.
Figure 21. Adaptor for connecting to a PT100 sensor:
Part No. DY7204A0003
 Adaptor for connecting to a user terminal:
Connects humidity stat and filter differential pressure
alarm to Infilex FC with modular connection.
Figure 22. Adaptor for connecting to a user terminal:
Part No. DY7204A0008
 Modular plug
Figure 23. Modular plug: Part No. DY7207A0100 (100 pieces/set)
 Tube:
Prepare tubes (if necessary) that meets the following
specifications.
Figure 24. Tube (commercially available)
Precautions for use
 Modular branch unit, modular extension unit, adaptor for
connecting to a Pt100 sensor, a user terminal must be
used in an outlet box or inside a panel.
 For modular connection, be sure to insert the modular
plugs into the modular jacks until they click. Then lightly
pull out the cables to make sure they are completely
connected.
Tools Description
 Modular crimping tool:
Crimps modular plugs on LAN cables.
Figure 25. Modular crimping tool: Part No. DY7205A0002
 Modular continuity tester:
Checks continuity of LAN cables with modular plugs
crimped on.
Figure 26. Modular continuity tester: Part No. DY7206A0000
55.6
64
40.5
50  1
Interval between
mounting screws
Unit: mm
5.0
0.4
3.4
1.8
A
pplicable wire: JCS KV 0.5 mm2 Unit: mm
17.3
28.0 16.3
Unit: mm

AB-6569
13
Terminator
For LonTalk protocol, terminator is required to ensure the communication reliability. For bus topology, a terminator is connected
at each end of the devices on the bus (= 2 terminators for bus topology). For free topology, a terminator is connected at any end
of the devices on the bus (= 1 terminator for free topology) throughout the whole system.
IMPORTANT:
Terminator types vary depending on network topology (bus topology or free topology). Refer to the table below.
Connection for bus topology (Total wiring length: Max. 900 m)
Connect a terminator at each end of the devices on the bus (2 terminators in total) as shown in Fig. 27.
If the wiring length is 250 m or shorter, connect a terminator at one (not both) end of the devices on the bus (1 terminator in total)
as shown in Fig. 29. In this case, be sure to use a free topology terminator.
: Terminator Part No. DY7212A1101 : Terminator Part No. DY7212A1100
Connection for free topology (Total wiring length: Max. 450 m, longest wiring length between one end to another end
of the devices: Max. 250 m)
Connect a terminator to any end of the devices on the bus throughout the system (1 terminator in total) as shown in Fig. 29.
: Modular branch unit Part No. DY7203A0000
: Terminator Part No. DY7212A1100
Figure 29. Terminal connection example for free topology
(Wiring length: Max. 450 m, longest wiring length between one end to another end of the devices: Max. 250 m)
Terminators (modular connection type) part numbers
Part number Indication on the labels Network topology Applicable transceiver
DY7212A1100 FREE Free topology TP/FT-10 channel
DY7212A1101 BUS Bus topology TP/FT-10 channel
Notes:
 Separate order is required for the terminators shown above. Be sure to separately order your applicable terminator(s).
 The terminators shown above are applicable only to a normal use. Since the channel of the transceivers provided in the devices is TP/FT-10,
they are not applicable to a special use (e.g., the same bus is used for both communication and power supply).
Branch
Branch
Branch
Branch
Branch
250-900 m Max. 250 m
Figure 27. Terminator connection example for bus topology
(Wiring length: 250-900 m)
Figure 28. Terminator connection example for bus topology
(Wiring length: Max. 250 m)

AB-6569
14
Software Details
Functions with the symbol * are available when Infilex FC is combined with Infilex ZM, other controllers, and the center unit in a
BMS.
(1/3)
Item Function Description Remarks
Operation (common to
valve ON/OFF control
and valve proportional
control types)
FCU start/stop
operation
FCU is turned on/off with the center unit, DI, or a
user terminal.
Each Infilex FC can individually be
started up and shut down.
Setback operation Set temperature is changed to save energy. Each Infilex FC can individually control
the setback operation..
FCU interlocking
with OAHU*
Infilex ZM can configure the sets composed of
Infilex FC and AHU controller. (Multiple Infilex FC
and AHU controllers can be included in a set.) In a
specified set, all the FCUs interlock with the OAHU
start/stop operation.
One Infilex ZM can control up to 4 sets.
‘OAHU interlocking with FCU’ is not
available when ‘FCU interlocking with
OAHU’ is active.
Do not operate the user terminal(s) to
start/stop Infilex FC.
OAHU interlocking
with FCU*
Infilex ZM can configure the sets composed of
Infilex FC and AHU controller. (Multiple Infilex FC
and AHU controllers can be included in a set.) In a
specified set, all the OAHUs interlock with FCU
start/stop operation if at least one FCU is started
up.
One Infilex ZM can control up to 4 sets.
‘FCU interlocking with OAHU’ is not
available when ‘OAHU interlocking with
FCU’ is active.
Control
(for valve ON/OFF
control type)
Temperature
control1)
Valve is ON/OFF-controlled so that the actual
(measured) temperature matches the preset
temperature.
Fan speed control The fan speed is multistage-controlled depending
on the difference between the actual temperature
and the preset temperature. Fan multistage control
has L/M/H(low/medium/high) type or L/M/H/OFF
type.
Fan speed is automatically controlled
when it is set to AUTO.
When L/M/H is selected, the selected fan
speed is output.
Control
(for valve proportional
control type)
Temperature
control1)
Floating valve is PID-controlled so that the actual
(measured) temperature matches the preset
temperature.
Noise control To prevent the water flushing noise, the valve is
completely closed when its closing position
reaches the specified.degree.
Fan speed control The fan speed is multistage-controlled depending
on the difference between the actual temperature
and the preset temperature.
Fan multi-stage control has L/M/H type or
L/M/H/Off type.
Water- or fan speed-priority control can be selected
in response to the applications.2)
Fan speed is automatically controlled
when it is set to AUTO.
When L/M/H is selected, the selected fan
speed is output.
Control
(common to valve
ON/OFF control and
valve proportional
control types)
Cooling/heating
changeover*
The following items are sent from the center unit
when cooling/heating changeover is required:
Cooling available, heating available, cooling and
heating available, fan only (cooling or heating not
available).
Infilex ZM can configure the sets
composed of Infilex FC. One Infilex ZM
can control up to 8 sets for the
cooling/heating changeover.
Mixing loss control* Indoor perimeter- and interior- FCU/VAV are
interlocked, and mixing loss is controlled with the
deviation between the preset temperature of the
indoor perimeter- and the interior- FCU/VAV.
One (group of) Infilex FC can interlock
with another/other Infilex FC and/or
Infilex VC. Interlocked Infilex FC and/or
Infilex VC cannot interlock with different
Infilex FC and/or Infilex VC.
Do not operate the user terminal(s)
connected to the interlocked Infilex FC
and/or Infilex VC.
Optimum
temperature control
of OAHU supply air
The OAHU supply air is set at optimum
temperature in response to FCU load. This
enables comfortable temperature and OAHU fan
power cutback.
Infilex ZM can configure the sets
composed of Infilex FC and AHU
controller. One Infilex ZM can control up
to 4 sets.
VWV/VWT
control*, 3)
Pump feed power is cut back by adequately
controlling supply water pump in response to FCU
load. Additionally, chiller operating efficiency is
enhanced by setting the optimum chiller outlet
temperature.
Infilex ZM can configure the sets
composed of Infilex FC and pump
controller. One Infilex ZM can control up
to 4 sets.

AB-6569
15
(2/3)
Item Function Description Remarks
Control
(common to valve
ON/OFF control and
valve proportional
control types)
Parallel operation
of multiple FCUs:
fan start/stop, valve
open/close, and fan
speed changeover*
Fan start/stop, valve open/close, or fan speed
changeover of multiple FCUs is concurrently
operated.
Master- and slave- Infilex FC must have
the same fan output type and must be
connected to the same LS-bus.
When the fan speed is set to AUTO, do
not turn off Infilex FC with temperature
control.
Do not operate the user terminal(s)
connected to the slave- Infilex FC.
Operation with a user
terminal
(common to valve
ON/OFF control and
valve proportional
control types)
FCU start/stop
operation
FCU is turned on/off with a user terminal. The latest start/stop operation with a
user terminal or with the center unit
takes priority.4)
Start/stop operation with a user terminal
can be restricted by the center unit.
Setback operation is not available when
the start/stop operation is active.
Temperature
setting
Set temperature is changed with a user terminal. The latest temperature setting with a
user terminal or with the center unit
takes priority.5)
High/low limit setpoint can be set with
the center unit.
Dual setting is available6).
Setback operation FCU operation is switched to setback operation with
a user terminal.
The latest setback operation with a user
terminal or with the center unit takes
priority5).
Setback operation can be restricted by
the center unit.
FCU start/stop operation is not available
when the setback operation is active.
Fan speed control Fan speed is changed over (L/M/H/AUTO) with a
user terminal.
The latest changeover operation with a
user terminal or with the center unit
takes priority5).
Operation with the
center unit
Individual
monitoring*
The following items are monitored and controlled by
the center unit:
FCU start/stop, temperature measuring,
temperature setting, high/low limit setting, setback
difference, fan speed control, valve position,
cooling/heating conditions, control status7)
(Not all the items above are required to centrally
monitor or control.)
Group monitoring* Multiple Infilex FC are divided into groups, and with
the center unit, the following items can be monitored
and controlled per grouped Infilex FC:
FCU start/stop, temperature measuring8),
temperature setting, high/low limit setting, setback
difference
(Not all the items above are required to centrally
monitor or control.)
All the Infilex FC connected from a
certain Infilex ZM can be divided into up
to 25 groups. (Various grouping is
available.)
Any item set for group monitoring can
not be individually monitored.
Group monitoring and individual
monitoring can be combined (e.g. FCU
start/stop for group monitoring and
temperature measuring for individual
monitoring).
One Infilex FC can belong to only one
group.
Batch operation* All valves can forcibly be opened/closed with the
center unit.
This facilitates pipe flushing.
Valves controlled by all the Infilex FC
connected from a certain Infilex ZM are
subject to batch operation.
Batch operation can be performed with
Infilex ZM as well as with the center unit.

AB-6569
16
(3/3)
Item Function Description Remarks
External contact input
(DI)
Alarm input Input value of DI (digital input) 1 is reflected in the
alarm point. When the contact of DI 1 is open, NML
(0) is reflected. When the contact of DI 1 is closed,
ALM (1) is reflected.
Alarm input is applicable only to Models
WY5305W2010.
State input Input value of DI (digital input) 2 is reflected in the
general DI point. When the contact of DI 2 is open,
OFF (0) is reflected. When the contact of DI 2 is
closed, ON (1) is reflected.
State input is applicable only to Models
WY5305W2010.
Interlock operation with
DI
FCU interlocking
with alarm input
When alarm input is “ALM”, FCU is turned off.
Concurrently, FCU start/stop operation with a user
terminal can be restricted.
FCU automatic start/stop operation is
not available when FCU interlocking with
alarm input is active.
FCU interlocking
with status input
When status input is “OFF”, FCU is turned off/
switched to setback operation. Concurrently, FCU
start/stop operation with a user terminal can be
restricted.
FCU automatic start/stop operation is
not available when FCU interlocking with
status input is active.
Notes:
1) Any combination of the following valves can be used for temperature control:
Chilled/hot water valve, chilled water valve, hot water valve, chilled water valve + hot water valve,
and chilled water valve + chilled/hot water valve*
 The order of valve open/close operation can be set with parameters.
(e.g. chilled water valve  chilled/hot water valve OR chilled/hot water valve  chilled water valve)
2) “Water-priority” control is the method to open the valves first BEFORE the fan speed is increased. This prevents excessive fan speed
(airflow volume) and fan noise.
“Fan speed-priority” control is the method to widely open the valves AFTER the fan speed is increased. This ensures the temperature
difference between the coil inlet and outlet, leading to the effective chiller plant control.
3) VWV: Variable Water Volume
VWT: Variable Water Temperature
4) The latest start/stop operation with an analog user terminal may not take priority.
5) The latest setting operation with an analog user terminal does not take priority.
6) Dual setting is the method to have cooling setting and heating setting separately.
7) Control status is an index of FCU load. The index is used for supply air temperature control of OAHU or VWV/VWT control.
8) Temperature measuring for group monitoring calculates either the average value in a group or the representative value of a group.

AB-6569
17
Check and Setting
The following check and settings must be performed by a
technical engineer.
LED indication
After the power is applied to Infilex FC, check that the status
indicator LED blinks in approx. 10 seconds. If it stays ON,
Infilex FC is in an abnormal status. The LED stays ON for
seconds immediately after the power is applied, which does
not indicate an error. LED indication is described on the front
surface of Infilex FC. (See Figs. 30 to 32.)
Figure 30. LED indication
Status LED indication (□: ON / ■: OFF)
Normal Normal
Power OFF Power
Off
LS-bus error
LS-bus
Err
Initializing /
Error
Error 1
Minor error
Error 2
Figure 31. Descriptions of red LED indication (status)
Status LED indication (□: ON / ■: OFF)
Normal Normal
Applicationless
Appli-less
Unconfigured
Unconfig
LS-bus error Any indication other than the above.
Figure 32. Descriptions of green LED indication
(Communication with LonTalk protocol)
Address setting
Two address setting dials are located on the front surface of
Infilex FC. The allow of the upper dial (with ‘x10’) indicates
tens, and the allow of the lower dial (with ‘x1’) indicates ones.
For setting the address, use a small Phillips screwdriver to
turn the dial.
Parameter setting
Infilex FC parameters are set in response to the size and type
of FCU, room characteristics, and applications.
To Connect Two User Terminals
(for Remote Control)
Up to two digital user terminals (Neopanel Model QY7205C)
can be connected to one Infilex FC.
To connect the two user terminals
- Modular branch unit (Model DY7203A0000)
- Neopanel with address 1 and with address 2
are required.
Note that two Neopanel with address 1 connected to the
Infilex FC do not work. Address number is indicated on the
shipping carton and on the label attached to the inside
surface of the Neopanel main unit (with the base cover
removed).
Notes:
 The latest FCU start/stop operation or temperature setting
operation with a Neopanel or with the BMS center unit takes
priority.
 Neopanel with address 2 does not have a temperature
measuring function.
Connection of Data Setter for LonTalk Protocol
Connect the CompactFlash memory type Data Setter
(Model QY5111B) for LonTalk protocol to LS-bus port of
Infilex FC with the Data Setter adaptor (Part No.
DY5301S0000, with separate order required).
For details of the Data Setter adaptor, refer to its
Specifications manual.
Note:
Parameters of a remote unit on LS-bus (sub-controller) can also
be set and modified with the Data Setter with Data Setter adaptor
connected on a remote unit on LC-bus (controller). Refer to
Specifications/Instructions of the respective controllers.
Figure 33. Connection example of Data Setter with Data setter
adaptor to LS-bus port of Infilex FC
A
ddress
setting dial
Valve proportional
control type
LED (red)
LED (green)
Valve ON/OFF
control type LED (red)
Descriptions of
LED indication
A
ddress
setting dial
LED (green)
1s 1s
0.25s 0.25s
1s 0.25s
0.25s 0.25s
3s
1s 1s
Infilex FC
Model WY5305
Infilex SC
Model WY5307
Infilex VC
Model WY5306
Data Setter
adaptor
Model DY5301S
Data Setter
Model QY5111B
LS-bus (LonTalk protocol)
(For setting Infilex FC and the remote units
connected on LS-bus:
Connect Data Setter with Data Setter adapto
r
to LS-bus port of Infilex FC.)

AB-6569
18
Network Interface between Infilex FC and Other Devices
Program ID XX:00:5F:50:14:03:04:XX
Documentation &3.4@0Node,8020FCUControl;Inf-FC WY5305
Program ID revision
90:00:5F:50:14:03:04 :11 WY5305***** (rev. 01 - 02)
:12 WY5305***** (rev. 03)
WY5305*****-0
80:00:5F:50:14:03:04 :13 WY5305*****-1 (rev.04 -)
Object details (continued to the following page)
Configuration Properties
nc25-nciNetConfig(SCPTnwrkCnfg)
nc165-nciDevMajVer(SCPTdevMajVer)
nc166-nciDevMinVer
(
SCPTdevMinVer
)
Optional
Network
Variables
Node object Type #0
Mandatory
Network
Variables
nviRequest
SNVT_obj_request
nv1
nviTimeSet
SNVT_teim_stamp
nv3
nviFIleReq
SNVT_file_req
nv5
nviFilePos
SNVT_file_pos
nv7
nvoStatus
SNVT_obj_status
nv2
nvoFileStat
SNVT_file_status
nv6
Explicit Messages
FCU
Object
Device Documentation
Node
Object
Configuration Properties
CP & Data File Transfer
Configuration Properties
 Node object  Infilex FC controller object

AB-6569
19
nviOutdoorTemp
SNVT_temp_p
nviRainState
SNVT_switch
nviOpeFcu1
UNVT_op_fcu1
nviOperation
UNVT_operation
nvoSetPtOffset
SNVT_temp_p
nvoLoadResetSt
SNVT_count
nvoSpaceTemp2
SNVT_temp_p
nvoSpaceRH
SNVT_lev_percent
nvoBattExchange
SNVT_state
nvoUnitAlarm
SNVT_switch
nvoDI
SNVT_switch
nvoCtrlDataFcu
UNVT_dat_fcu1_2
nvoIODataFcu1
UNVT_dat_fcu2_2a
nvoIODataFcu2
UNVT_dat_fcu2_2b
nvoUTDataFcu
UNVT_dat_vav3_2
nvoControlMode
UNVT_ctrl_mode
nvoErrorState1
UNVT_error_st1
nvoErrorState2
UNVT_error_st2
nvoErrorState3
UNVT_error_st2
nvoEepromState
UNVT_eeprom_st
nvoUpdateData
UNVT_f_update
nviSpaceTemp
SNVT_temp_p
nv1
nviSetPoint
SNVT_temp_p
nv2
nviFanSpeedCmd
SNVT_switch
nv6
nviOccCmd
SNVT_Occupancy
nv7
nviApplicMode
SNVT_hvac_mode
nv8
nviSetPtOffset
SNVT_temp_p
nv9
nvoFanSpeed
SNVT_switch
nv5
nvoSpaceTemp
SNVT_temp_p
nv15
nvoEffectSetPt
SNVT_temp_p
nv16
nvoOccCmd
SNVT_occupancy
nv19
nvoHeatOutput
SNVT_lev_precent
nv3
nvoCoolOutput
SNVT_lev_percent
nv4
nvoUnitStatus
SNVT_hvac_status
nv21
Configuration Properties
nc49-nciSndHrtBt(Mandatory)
nc60-nciSetPnts(Mandatory)
nc48-nciRcvHrtBt(Optional)
nc52-nciMinOutTm(Optional)
Hardware
Outputs
FCU Device
ob
j
ect T
yp
e #8020
Manufacture
Defined
Section
Hardware
Inputs
Mandatory
Network
Variables
Optional
Network
Variables
Configuration Properties
nc68-nciCovPara
nc24-nciFcuAux
nc1-nciSetPtHiLimit
nc2-nciSetPtLoLimit
nc62-nciParaFcu01
nc63-nciParaFcu02
nc64-nciParaFcu03
nc65-nciParaFcu04
nc18-nciParaFcu05
nc8-nciParaFcu06
nc66-nciParaFcu07
nc67-nciParaFcu08
nc70-nciParaFcu11
nc54-nciParaFcu21
 Controller object

AB-6569
20
Network variables
 Node object
Input network variables (according to LONMARK Functional Profile: Node object)
Variable name SNVT name Valid range Default value Description SB*
1
RB*
2
MT*
3
nviRequest SNVT_obj_request


Object request



nviTimeSet SNVT_time_stamp


Time setting



nviFileReq SNVT_file_req


File request



nviFilePos SNVT_file_pos


File position



Output network variables (according to LONMARK Functional Profile: Node object)
Variable name SNVT name Valid range Default value Description SB RB MT
nvoStatus SNVT_obj_status


Object request



nvoFileStat SNVT_file_status


File status



Configuration network variables (according to LONMARK Functional Profile: Node object)
Variable name CP type Valid range Default value Description
nciNetConfig SCPTnwrkCnfg 0 to 1 CFG_LOCAL Changeover between
self-installation mode and
SNVT connection mode
User-defined configuration network variables (according to LONMARK Functional Profile: Node object)
Variable name CP type Valid range Default value Description
nciDevMajVer SCPTdevMajVer 0 to 255

Device major version
nciDevMinVer SCPTdevMinVer 0 to 255

Device minor version
Note:
1, 2, and 3 are applicable LonTalk protocols.
1. SB: Send Heartbeat
2. RB: Receive Heartbeat
3. MT: Minimum Out Time