HITACHI ATW-RTU-07 Wireless Intelligent Room Thermostat User Manual

HITACHI ATW-RTU-07 Wireless Intelligent Room Thermostat

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INSTALLATION INSTRUCTIONS

SAFETY SUMMARY

DANGER

• Adhere to the electrical standards in effect, as well as the following points:
• It is imperative to switch off the supply for the sector to which the product will be connect-ed before proceeding to installation. Risk of electric shock.
• Do not install ATW-RTU-07 outdoors.
• Ensure that there is no dust on the connection points such as the power terminals and/or on the cable. This may cause a fire or electric shock.

CAUTION

• This appliance must be used only by adult and capable people, having received the technical in-formation or instructions to handle properly and safely this appliance.
• Children should be supervised to ensure that they do not play with the appliance.
• The device power supplier must be a fixed in-stalled wiring with an additional circuit breaker for power switch ON/OFF when required.
• Local or national regulations must be followed at all times during the preliminary work to prepare the electric power line for the equipment.
• Avoid falls and collisions.
• Never attempt to immerse the product in liquid.
• Do not use abrasive products or solvents to clean the casing. Its surface may be cleaned using a soft, dry cloth.
• Do not attempt to open the casing.
• Do not install the RF receiver where persons wearing a pacemaker may be present.
• All use or modification of the equipment not anticipated by Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. could lead to danger in us-ing it.
• Use only the cables and accessories supplied.

NOTE

• Avoid positioning the receiver against or close to any metallic part in order to avoid any radio trans-mission drop.
• Place the product in a detachable manner close to the device to be controlled. The product should be installed at a height of less than 1.5m high.
• Do not install the RF receiver where devices using radio frequencies as means of transmission are prohibited (Refer to local standards in effect).
• Do not install the RF receiver close to devices that may be affected by radio waves.
• Do not install the RF receiver in a damp environment (for example, a bathroom).

FACTORY SUPPLIED ACCESSORIES

INSTALLATION INFORMATION

• As these products communicate using RF technology special care must be taken during installation. The location of the RF components as well as the building structure may influence performance of the RF system. To assure system reliability, please review and apply the information given below.
• Within a typical residential building the two products should communicate reliably within a 30m range.
• It is important to take into consideration that walls and ceilings will reduce the RF signal. The strength of the RF signal reaching the RF Receiver depends on the number of walls and ceilings separating it from the Room Thermostat, as well as the building construction. Walls and ceilings reinforced with steel or plasterboard walls lined with metal foil reduce the RF signal significantly more.

RF RECEIVER INSTALLATION

1. Disconnect the main power from the system. To ensure your safety, always make sure main power is switched off before accessing wiring.

2. Remove the cover from the RF receiver.
   

3. Mount the wiring plate to the wall or wall box.
   NOTE
   The plugs and mounting screws required are supplied.
   

4. Connect the RF Receiver wiring.

   • Connect the H-LINK cable.
   • Place the cable through the orifice identified by marker 3.
   • Connect the power cable (L = Live ; N =Neutral) (Tightening torque 0.50 Nm)
   • Place the power cable in the cable guide identified by marker 1.

5. The cables must be positioned in the box’s cable guides in order to guarantee the pull-off strength.
   Item| Notes
   ---|---
   CB| Circuit Breaker 5A
   Cable| 2 x 0.75 (1)

Power cable type cannot be lighter than the specified in 60245 IEC 57.

6. Attach the cover of the RF receiver to the wiring plate.
7. Reconnect the mains power to the system.
   

Dimensional data
Technical data

• Supply voltage: 230V/50Hz (30mA)
• Wattage: 7W (maximum)
• Dimensions (mm): 123 x 115 x 37
• Weight (g): 214g
• Class 2 reinforced insulation device
• Overvoltage category: Class 2
• Pollution category: Class 2
• Operating Temperature: 0°C to + 60°C
• Operating Humidity: between 30% and 80%
• Equipment protection rating: IP21
• Maximum altitude for use: < 2000m

Communication

• Radio frequency and maximum power used: 868.0 MHz -868.6 MHz / ERP <25 mW
• Receptor class 2
• YUTAKI H-LINK:
  • Communication line: Non-polar, twisted shielded pair cable – Communication system: Half-duplex
  • Communication method: Asynchronous
  • Transmission Speed: 9,600 bauds
  • Wiring length: 1,000 m maximum (total length of H-LINK I/O bus)
  • Maximum number of RF receivers: 1 H-LINK system RF receiver

Simplified declaration of conformity
Hereby, Johnson Controls-Hitachi declares that the radio equipment type 2 is in compliance with directive 2014/53/EU.
DSW configuration

THERMOSTAT INSTALLATION

1. Locate the thermostat.
   

   • Away from draughts
   • Away from heat sources
   • Away from direct sunlight
   • Positioned about 1.2m – 1.5m from the floor
     

2. First remove the dial.

3. Unclip the mounting plate.
   Press the top of the thermostat downwards, pull it loose and tilt forwards.

4. Mount directly to the wall.
   The plugs and mounting screws required are supplied.

5. Remove the protective tab between the batteries.

6. Attach the thermostat to the mounting plate.

7. Replace the dial.

OPERATION INSTRUCTIONS

RF RECEIVER

Operation and status LED

RF receiver status| ON Time| OFF Time| Description
---|---|---|---
Waiting| 0.5 s| 4 s| There is no thermostat linked to the RF receiver
Normal operation| Infinite| –| There is at least 1 thermostat linked to the receiver and there are no alarms.
Alarm| 150 ms| 150 ms| Communication fault between RF receiver and YUTAKI unit, RF communication lost with any of the wireless thermostats or Faulty RF receiver.
Binding| 1 s| 1 s| Binding process

Reset
ATW-RTU-07 RF receiver and thermostat are already linked by default. To verify if Reset has to be performed, check section “3 Binding the Wireless thermostat and RF Receiver”
To reset the stored data in order to create a new binding in ATW-RTU-07 press BIND button during 15 seconds.
After reset is being performed Status led shall blink according to
“Waiting” status defined in ”2.1.1 Operation and status LED”.
RF transmission
The refresh time of the RF transmission (between wireless room thermostat and main controller) is ranging from 30 sec to 2 minutes.

THERMOSTAT

Explanation of the icons

• Setting temperature
  The figure appearing on the screen corresponds to the setting temperature, instead of the current room temperature.

• Heating on
  Heating is demanding, and thus the heat pump should be in operation, either intermittent or continuous.

• RF receiver binding
  The thermostat is on binding process with the RF receiver.

• RF receiver connection
  The thermostat is successfully connected to the RF receiver.

• Setting modification indication
  In case that RF receiver connection symbol is surrounded by this symbol means that setting temperature has been updated from central application.
  This symbol is not displayed in case setting temperature has been modified by turning the thermostat wheel.

• RF communication error
  These icons flash to indicate that the signal from the RF Receiver is not properly received. Check that the RF Receiver is powered on, and consult with your installer if this does not fix the problem.

• Low battery
  It is necessary to replace the batteries immediately.

• Defective thermostat
  The thermostat is defective and needs to be replaced.
  The text F77 is displayed in addition to this icon when communication with the YUTAKI unit has failed for more than 180 seconds.
  

• No power to the thermostat
  If the thermostat screen appears blank after initial installation, then check whether the protective film has been removed from the batteries. Otherwise, try replacing the batteries.

Setting of room temperature
The current room temperature is shown in the display. The setting temperature can be changed by turning the dial to the right to increase temperature, and to the left to reduce temperature. The setting temperature changes in 0.5ºC steps, one for each ‘click’ as the dial is turned.
The display changes to current room temperature again after five seconds have passed. Then the thermostat tries to maintain the set temperature as accurately as possible. The setting temperature can be checked by turning the dial one ‘click’ to the left or right. It will flash up for a few seconds, before returning to the display of room temperature again.
Night temperature reduction
It is recommended to set the thermostat to a lower temperature at night and during absence periods, as it helps to save energy. In general a reduction of 3°C is suggested, but this depends on the heating system and the amount of insulation of the building.
2.2.4 Installation menu
The single zone thermostat has an installation menu that is used to set the maximum and minimum temperature limits.
The maximum temperature that can be set on the thermostat is 35ºC and the minimum temperature is 5ºC.
ON/OFF Switch
The temperature dial is used to turn the system ON and OFF. Turn the dial to the left until the displayed temperature is lower or equal than 10 ºC in order to turn the system off. Turn the dial to the right until the displayed temperature is more than 10 ºC in order to turn the system ON again.
2.2.6 Activation of the installation menu
Rotate the setting ring fully to the left until the minimum value is shown. When the value starts flashing, touch and hold on left or right touch zones for approximately 10 s.
The maximum temperature limit is now displayed. The setting can be changed using the setting ring. There is no need to confirm the value.
While this setting is flashing, touch the left or right touch zone briefly to display the minimum temperature limit. This can also be changed using the setting ring.
The thermostat cannot be used to turn the system on and off unless the limit for minimum temperature is set to a value lower than 11ºC (ex: 5ºC).
The installation menu is closed automatically after 10 seconds of inactivity.
Reset to default
Rotate the setting ring fully to the left until the minimum temperature is shown.
When the value starts flashing, touch and hold on left or right touch zones for approximately 10 s. The maximum temperature limit is now displayed flashing, touch the left or right touch zone briefly.
When the minimum temperature limit is flashing, touch again the left touch zone.
The symbol appears on the screen, touch and hold during 10 s the left touch zone and the device resets the default settings.
Replacement of the batteries

1. Pull to remove the dial ring.
2. Detach the thermostat from the base.
3. Replace the batteries as shown at the picture.
4. Attach the thermostat to the base.
5. Place the dial ring.

BINDING THE WIRELESS THERMOSTAT AND RF RECEIVER

By default the thermostat is already linked to the RF receiver. For these reason there is no need to perform binding procedure in case it is only required one wireless thermostat at the installation.
The binding operation described below is required if:

• Any of the system components (Room Thermostat or RF Receiver) are replaced. Go to step 1.
• The RF Receiver has incorrect or no binding data stored (e.g. when pre-bound system pack components have been mismatched). Go to step 1.
• When adding a second wireless thermostat. Go to step 2.
  NOTE
  During the binding procedure keep approximately 1m distance between the Room Thermostat and the RF Receiver.

1. Hold button on RF Receiver for 15 seconds in order to remove all the configurations. At the end of the procedure, LED will flash 0.5 seconds ON and 4 seconds OFF.

2. Hold button on RF Receiver for 5 seconds. Led will flash for 1 seconds ON and 1 second OFF.

3. Bind the thermostat. Touch and hold on the right touch zone for approximately 10 seconds.

4. The screen for binding the RF Receiver is now displayed.

5. Briefly touch the right touch zone to send the binding signal, at which point the symbol will flash several times.

6. If binding has been successful the number indicates the signal strength (1 = min to 5 = max). If binding fails, appears on screen. Please try again.

   • Successful binding

   • Failed binding

7. The LED on the RF receiver is constantly ON to indicate that the RF receiver is correctly linked with a thermostat.
   NOTE
   Binding can be cancelled from the binding screen by touching and holding on the right touch zone for approximately 10 seconds.

8. If binding is unsuccessful, LED will flash. In this case, change the location of the room thermostat and repeat the procedure.

9. In case that there are 2 room thermostats and thermostat 1 is already linked, LED will be stay ON even if binding is unsuccessful for thermostat 2.

10. Perform this step in case started from step 1. Repeat the procedure from step 2 to 8 to bind the second room thermostat.

NOTE

• Note that the RF receiver closes the binding window after 2 minutes of inactivity.
• The first binding is saved as Thermostat 1, and the second binding (if necessary) is saved as Thermostat 2.
• The selection of the zone in which Room thermostat will be used is done at the Room thermostat menu in the YUTAKI LCD Controller (PC-ARFH1E).

COMMUNICATION LOSS

In case of alarm the LED on the RF Receiver flashes 150 ms ON and 150 ms OFF. The following list shows which types of communication fails makes the RF receiver to enter into alarm state.

• If there is a communications fault between the RF Receiver and the Room Thermostat.
• If there is a fault in communications between the YUTAKI and RF Receiver.
• If there is one Room Unit installed and communications is lost with that zone.
• If there is more than one Room Unit installed, as in multizone systems for example, and communications is lost with one zone.
• If there is more than one Room Unit installed, as in multi-zone systems for example, and communications is lost with both zones.

In case of alarm, check wireless thermostats and check also YUTAKI LCD Controller (PC-ARFH1E) to determine reason of alarm.
NOTE
LED also shows alarm in case of faulty RF receiver.

FAIL-SAFE MODE SETUP

The fail-safe mode defines the system status if the RF communication is lost (e.g. when the Room thermostat stops communicating due to discharged batteries).
The system will continue to operate at the last communicated setpoint.

TROUBLESHOOTING

Symptom (Fault Message)

| Possible Cause|

Remedy

---|---|---
The receiver box does not react to setpoint changes on the room thermostat.| The room thermostat and receiver box are not bound.| Reset the receiver box by pressing and holding the push button for 15 seconds. Then follow the binding / rebinding procedure as described in section _“_3 Binding the Wireless thermostat and RF Receiver”.
The LED shows alarm| There is no communication between YUTAKI Unit and RF receiver.| Check H-LINK connection wire between YUTAKI Unit and RF receiver and replace it if necessary.
The receiver box receives no RF messages from the room thermostat.| Re-locate the room thermostat.
RF signal is blocked due to wrong location of the room thermostat.
Room thermostat batteries are exhausted.| Replace batteries in the room thermostat.
Faulty receiver.| Change the receiver.

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