Azbil Infilex FC Series User manual

AB-6567
© 2005–2018 Azbil Corporation All Rights Reserved.
1
Specifications/Instructions
Infilex FC
Fan Coil Unit Controller
for SC-bus Communication
Overview
Infilex FC Model WY5205W is a DDC controller for FCU. In
addition to FCU ON/OFF operation, valve control, and fan
speed changeover, Infilex FC provides advanced controls
such as setback and interlock operations with OAHU.
Infilex FC in combination with room user terminal(s) allows
room occupants to operate FCU.
Infilex FC also communicates to our BMS. This enables to
centrally monitor and control the scheduled operation,
operating status, and temperature measurement of FCU.
BMS: Building management system
DDC: Direct digital control
FCU: Fan coil unit
OAHU: Outdoor air handling unit
Features
● Compact size:
Small sized body fits inside an FCU.
● Two kinds of FCU control:
Valve ON/OFF control and valve proportional control for
FCU are available.
● Advanced controls in combination with our BMS:
Infilex FC combined with our BMS allows FCU to
interlock with OAHU and to control mixing loss between
perimeter and interior zones.
● Standalone control:
Infilex FC is not only connected to our BMS but also used
as a standalone controller.
● Room user terminals:
Our user terminal (Neopanel or Neoplate) is connectable
to Infilex FC, allowing the room occupants to turn on/off
FCU and change temperature setting.
● Easy installation:
Screwless push-in terminals (for pipe temperature
sensor input, DI, FCU ON/OFF output, and control valve
output) and modular jacks (for communication, user
terminal connection, and temperature sensor input)
reduce wiring workload.
● CE Marking certified product:
Infilex FC Models WY5205W100_ and WY5205W201_
conform to all the applicable standards of CE Marking.

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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
 Be sure to ground the product with ground resistance of less than 100 Ω.
Improper grounding might cause electric shock or malfunction.
 Detach the terminal cover only when wiring the product. Before detaching the terminal cover, be sure to turn off the
power to the product and all the connected devices. After wiring, be sure to reattach the terminal cover.
Failure to do so might cause electric shock.
 Before wiring and maintenance, be sure to turn off the power to the product.
Failure to do so might cause electric shock.
 CAUTION (1/2)

Install the product in a location that satisfies the operating conditions (temperature, humidity, power, vibration, shock,
mounting direction, atmospheric condition, etc.) as listed in the specifications and use the product within the operating
ranges as listed in the specifications.
Failure to do so might cause fire or device failure.
 Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
 All wiring must comply with applicable codes and ordinances.
 Connect the cables to the product power supply terminals with the terminal lugs or an equivalent method to assure
permanent connection.
 Be sure to provide a circuit breaker for the power to the product as the product does not have a power switch.

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 CAUTION (2/2)
 To connect the wires to the screw terminals, use crimp terminal lugs with insulation.
Failure to do so might cause fire or device failure due to short circuit.
 Firmly tighten the terminal screws.
Insufficient tightening of the terminal screws might cause fire or overheating.

For wiring, strip each wire insulation for the length specified in this manual. If the strip length is longer than the
specified, the stripped part of the wires will be exposed, causing electric shock or short circuit between adjacent
terminals. If it is shorter, the stripped part will not contact the connector.
 If more than the rated power voltage is applied to the product, replace the product with new one for your safety.
Failure to do so might cause fire.
 Do not disassemble the product.
Doing so might cause device failure.
 Dispose of this product as industrial waste in accordance with your local regulations. Do not reuse all or a part of this
product.
IMPORTANT:
This product adopts the screwless push-in terminals with the inclined surface. When a currently installed our
Intelligent FCU Controller (IFC) is replaced with Infilex FC, a screwdriver with short grip may be required for
wiring as IFC requires a smaller maintenance clearance than Infilex FC.

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Model Numbers
Base model
number Power Control type — DI Temperature input Description
WY5205 Infilex FC for SC-bus communication
W 100 V AC - 240 V AC
1 Valve ON/OFF control
2 Valve proportional control
0 Fixed
0 No DI point
1 Two DI points
0 RTD (Pt100)
K RTD (Pt1000)
Note:
Base model number is available with the following suffix numbers:
W1000, W100K, W2010, W201K
IMPORTANT:
Infilex FC cannot be connected to the system including SmartScreen or SCM (Sub Controller Master:
Model WY7222).
Part Numbers of Optional Auxiliary Device, Parts, and Tools
Item Part number Remark
Auxiliary
device
Temperature sensor for pipe surface
(to automatically change between
cooling and heating modes, for valve
ON/OFF and proportional control
types)
Part No. 81301851-001 1.3 m long
Part No. 81301851-002 2.5 m long
Parts Modular branch unit Part No. DY7203A0000 —
Modular extension unit Part No. DY7202A0000 5 pieces/set
Adapters for connecting to a Pt100
temperature sensor
Part No. DY7204A0003 For connection of Pt100 temperature sensor,
10 pieces/set
Connector cable for two terminals
(short cable)
Part No. DY7221A00X0 For connection of Pt 1000 temperature sensor,
10 pieces/set
Modular plug Part No. DY7207A0100 100 pieces/set
Mounting bracket (small) Part No. DY7208A0001 —
Mounting bracket (large) Part No. DY7208A0002 —
Tools Modular crimper Part No. DY7205A0002 —
Modular cable tester Part No. DY7206A0000 —

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System Configurations
Infilex FC for connection to our BMS
For BMS and devices that are compatible to Infilex FC, ask our salesperson.
Notes:
*1 Maximum number of Infilex ZM and/or DIF-II that can be connected to BMS varies depending on your system configurations.
*2 Maximum of 50 sub-remote units (also known as "sub controllers") such as Infilex VC and Infilex FC can be connected to Infilex ZM via
SC-bus.
*3 Up to two Neopanel (digital user terminal) or one Neoplate (analog user terminal) can be connected to one Infilex FC.
*4 Neopanel/Neoplate and a temperature sensor can be connected to the same Infilex FC.
Figure 1. System configuration example: Infilex FC integrated into our FX BMS
Infilex FC for standalone use
Note:
If Infilex FC for standalone use is set for BMS network connection, chilled/hot water cannot be detected by using the temperature sensor for
pipe surface.
Figure 2. Connection example: Infilex FC for standalone use with chilled/hot water valve and two Neopanel
Other connectable devices to NC-bus:
DIF-II*1/Energy meter
BACnet IP
BMS: Building management system
DIF-II: DGP (Data Gathering Panel) line interface-II
Client PC
BMS
Infilex AC
Model WY5117C
Infilex GC
Model WY5111
Infilex GD
Model WY5110
NC-bus (Max. 25 units and 500 m, but extendable up to 1000 m with the repeater module.)
Infilex FC
Model WY5205
SC-bus*2 (Max. 50 units and 1000 m)
Neopanel
Model QY7205
Infilex FC
Model WY5205
Temperature
sensor
Temperature
sensor*４
Neoplate*
3
,
4
Model QY7290
Infilex ZM*1
Model WY5122
Temperature
sensor
Neopanel
Model QY7205
Temperature
senso
r
Infilex VC
Model WY5206
SC-bus*2 (Max. 50 units and 1000 m)
Infilex ZM*1
Model WY5122
Infilex VC
Model WY5206
Neopanel
Model QY7205
Neopanel*
3
Model QY7205
Infilex FC
Model WY5205
Neopanel*
3
Model QY7205
Infilex FC
Model WY5205
Infilex VC
Model WY5206
Coil
Valve
: Modular plug
Modular
branch unit
Neopanel
Model QY7205
Neopanel
Model QY7205
Temperature sensor for pipe surface
: LAN cable
Fan
Infilex FC
Model WY5205

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Specifications
Basic specifications
Item Specification
Power Rated voltage 100 V AC to 240 V AC at 50 Hz/60 Hz
Operating voltage 85 V AC to 264 V AC
Power consumption Valve ON/OFF control type: 6 VA or less
Valve proportional control type: 7 VA or less
Environmental
conditions
Operating
conditions
Ambient temperature 0 °C to 50 °C
Ambient humidity 10 %RH to 90 %RH (non-condensing)
Altitude Max. 2,000 m
Vibration Max. 3.2 m/s² (at 10 Hz to 150 Hz)
Transport
/storage
conditions
Ambient temperature -20 °C to 60 °C
Ambient humidity 5 %RH to 95 %RH (non-condensing)
Vibration 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 location Side surface of FCU, inside of the ceiling, inside of control panel, inside of a box
Mounting With two M4 x 10 mm long 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)
Materials Modified PPE, equivalent to UL 94 V-0
PPE: Polyphenylene ether
Input/output specifications (1/2)
Unit to be connected Input/output description Input/output specification
Temperature sensor Temperature input Measuring range 0 °C to 50 °C
Input signal RTD (Pt100)
RTD (Pt1000)*1
Temperature sensor for pipe
surface*2
(Part No. 81301851-001 /
81301851-002)
Pipe surface temperature input
(for cooling/heating changeover)
Measuring range 0 °C to 50 °C
External relay, etc.*2 Contact input
(for cooling/heating changeover)
Connectable output type Potential free contact (maintained)
* Min. applicable load: 0.1 mA or lower
Control valve*3 ON/OFF output
(for valve ON/OFF control type)
Floating proportional output
(for valve proportional control type)
Connectable output type Voltage N.O. contact
Contact capacity 0.8 A / 125 V AC or less
0.4A / 250 V AC or less
Min. applicable load 10 mA AC
* For the power of valve ON/OFF control
type, the power of the fan is used. Select
ON/OFF valve with the rated power equal
to the FCU power.
Fan Fan ON/OFF output
Fan speed changeover output
Valve ON/OFF control, valve proportional control types (M/H output)
Connectable output
type
Potential free N.O. contact
Contact capacity 3 A / 125 V AC or less
1.5 A / 250 V AC or less
Min. applicable load 10 mA AC
Valve proportional control type (L output)
Connectable output
type
Potential free N.O. contact
Contact capacity 6 A / 125 V AC or less
3 A / 250 V AC or less
Min. applicable load 10 mA AC
Neopanel
(digital user terminal)
Temperature setting
FCU ON/OFF, etc.
Transmission system Serial voltage transmission
Transmission speed 100 bps
RTD: Resistance temperature detector
Notes:
*1 Because the Pt1000 temperature sensor is a two-wire type sensor, the wire resistance will cause measuring error. For instance,
1.25 mm2 size wire causes approx. 0.1 °C measuring error every 10 m. Correct the measuring error by setting Infilex FC.
*2 Either the pipe surface temperature input by the temperature sensor for pipe surface or the contact input by the external relay is used for
cooling/heating changeover of Infilex FC for standalone use.
*3 Proportional control valve with less than 30-second operating time (for full stroke) is not connectable. Ask our salesperson for details.

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(2/2)
Unit to be connected Input/output description Input/output specification
Neoplate
(analog user terminal)
FCU switch Connectable output type Potential free contact (instantaneous) x 1
Applied voltage 12 V DC typ.
Applied current 10 mA DC typ.
LED output Output type Transistor output
Output current 10 mA DC
Output voltage 12 V DC typ.
Output limiting resistance 1.2 kΩ typ.
Temperature setting input Potentiometer input (1 kΩ to 10 kΩ)
Communication SC-bus Transmission system Serial voltage transmission
Transmission speed 4800 bps
Power — 100 V AC to 240 V AC (85 V AC to 264 V AC)
External switch, etc. DI (contact input) Connectable output type Potential free contact (maintained) x 1
Applied voltage 12 V DC typ.
Applied current 5 mA DC typ.
Wire specifications
Item End connection Wire specification Wiring length
Pt100 temperature sensor Connecter connection*1 LAN cable*2 Max. 50 m
Pt1000 temperature sensor Connecter connection*3 1.25 mm2 to 2.5 mm2 lead wires + connector
cable for two terminals (Part No. DY7221A)
Max. 50 m
Temperature sensor for pipe
surface
(for cooling/heating
changeover of Infilex FC
standalone use)
Screwless push-in terminal
connection
JIS CVV 1.25 mm2 or equivalent Max. 50 m
External relay, etc.
(for cooling/heating
changeover of Infilex FC
standalone use)
Screwless push-in terminal
connection
JIS CVV 1.25 mm2 or equivalent Max. 50 m
Control valve Screwless push-in terminal
connection
24 V AC JIS CVV 1.25 mm2 or equivalent Max. 50 m
100 V AC JIS CVV 2.0 mm2 or equivalent
Fan Screwless push-in terminal
connection
JIS CVV 2.0 mm2 or equivalent Max. 50 m
Neopanel Connecter connection*1 LAN cable*2 Max. 50 m
Neoplate Connecter connection*1 LAN cable*2 Max. 50 m
Communication Connecter connection*1 LAN cable*2 Max. 1 km (in total)
Power M3.5 screw terminal connection JIS CVV 2.0 mm2 or equivalent —
External switch, etc. Screwless push-in terminal
connection
JIS CVV 1.25 mm2 or equivalent Max. 50 m
JIS: Japanese Industrial Standards
Notes:
*1 For connector connection, use Bel Stewart Connector’s Plug: Model SS-37000-002.
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 x 4 pairs) is required.
For *1 and *2, the connector cable (regular cable: Part No. DY7210, short cable: Part No. DY7220) are available at Azbil Corporation.
*3 Use the short connector cable for two terminals (Part No. DY7221A). Other cables are not acceptable.

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100 37
139  1(interval between mounting screws)
150
120 45
189  1(interval between mounting screws)
200
Dimensions
The following figures are images of Infilex FC Pt100 input type. Dimensions of the Infilex FC Pt1000 input type are the same as
those of the Infilex FC Pt100 input type.
<Valve ON/OFF control type>
Figure 3. Dimensions (mm): Model WY5205W100X
<Valve proportional control type>
Figure 4. Dimensions (mm): Model WY5205W201X

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Installation
 CAUTION

Install the product in a location that satisfies the operating conditions (temperature, humidity, power, vibration, shock,
mounting direction, atmospheric condition, etc.) as listed in the specifications and use the product within the operating
ranges as listed in the specifications.
Failure to do so might cause fire or device failure.
 Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
Precautions for installation
● For installing Infilex FC, securely fix with the screws.
● Leave maintenance clearance as shown in Figs. 5 and 6.
● Vertically mount Infilex FC (upright). Be sure to mount it
in a location where the product indication on the front
surface can be checked.
Figure 5. Clearances for maintenance (mm): front view
● To replace a currently installed IFC (Intelligent Fan Coil
Unit Controller) and other former series of FCU controller
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.
Figure 6. Clearances for maintenance (mm): side view
● Mount Infilex FC upright unless it is protected in a
dust-proof housing. (See ‘B’ in Fig. 7.) If this product is
mounted with its front surface facing upwards, dust may
accumulate on the connectors. (See ‘A’ in Fig. 7.)
.
Figure 7. Mounding direction
Min. 200
Min. 120
Min. 140
Min. 7
0
100 mm long
screwdriver
200 mm long
screwdriver
 Same maintenance clearance is required
for the terminals on the lower part.
[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
Dust
Vertical
direction
Horizontal
direction
A. Bad B. Good

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Screw-mount directly on the mounting surface
1) Open two holes for M4 screws on the mounting surface.
Leave 139 mm  1 mm interval for valve ON/OFF control
type and 189 mm  1 mm interval for valve proportional
control type.
Figure 8. Mounting holes layout
2) Mount Infilex FC with two M4 screws.
Figure 9. Mounting with two M4 screws
3) Make sure that Infilex FC is securely fixed on the
mounting surface with the screws and does not come off.
IMPORTANT:
Check the length of the mounting screws. Long
screws may damage devices behind the mounting
surface.
Mounting screw tabs of Infilex FC are 5 mm thick
each. If you reuse the mounting screws for IFC
(Intelligent FCU Controller), the screws are
inserted 15 mm deeper inside the mounting
surface than IFC.
Mount on the ⌀9 mm (3/8 inches) threaded rod
To mount Infilex FC on a threaded rod (⌀9 mm), use two
cable ties.
1) Put cable ties through two holes on the screw tabs (one
cable tie for each screw tab) and tie to the threaded rod.
• Infilex FC mounted on the threaded rod may rotate. Do
not allow the tension on the cables when wiring.
• Instead of cable ties, two support brackets can be
used to mount Infilex FC on the threaded rod. Refer to
Fig. 10 for mounting with cable ties and with support
brackets
• Mounting bracket Part No. DY7208A0001 (small)/
DY7208A0002 (large) can also be mounted on the
threaded rod using cable ties or support brackets.
Figure 10. Mounting on a Ø9 mm threaded rod
2) Make sure that Infilex FC is securely fixed on the
threaded rod with cable ties or support brackets and
does not come off. Also, make sure that the cable ties or
the support brackets are firmly tied to the threaded rod.
Two mounting holes
for M4 screws
Valve ON/OFF control type:
139  1 mm
Valve proportional control type:
189  1 mm
Cable tie Support bracket
Screw tab Screw tab
189±1mm
139±1mm
Mounting
screw tab Mounting
screw tab
5 mm
5 mm