HITACHI ATW-RTU-05 Wireless Intelligent Room Thermostat Instruction Manual

INSTALLATION AND OPERATION MANUAL
Wireless Intelligent Room thermostat
(ATW-RTU-05)

ATW-RTU-05 Wireless Intelligent Room Thermostat

Specifications in this manual are subject to change without notice in order that HITACHI may bring the latest innovations to their customers.
Whilst every effort is made to ensure that all specifications are correct, printing errors are beyond HITACHI’s control;
HITACHI cannot be held responsible for these errors.
CAUTION
** This product and the batteries contained on it shall not be mixed with general house waste at the end of its life. They shall be retired according to the appropriated local or national regulations in a environmentally correct way in order to be treated at a  specialized treatment facility for reuse, recycling and recovery.
If a chemical symbol is printed beneath the symbol, it means that the battery contains heavy metal above a certain concentration.
Possible chemical symbols are:
– Pb: Lead (>0,004%)
– Hg: Mercury (>0,0005%)
– Cd: Cadmium (>0,002%)
DANGER – Hazards or unsafe practices which COULD result in severe personal injuries or death.
CAUTION – Hazards or unsafe practices which COULD result in minor personal injury or product or property damage.
NOTE** – The text following this symbol contains information or instructions that may be of use or that require a more thorough explanation.

INSTALLATION INSTRUCTIONS

1.1 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 connected before proceeding to installation.
  Risk of electric shock.

• Avoid positioning the receiver against or close to any metallic part in order to avoid any radio transmission drop.

• 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

• 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 use this product outside. Do not place the connection wire outside.
• All use or modification of the equipment not anticipated by Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. could lead to danger in using it.
• Use only the cables and accessories supplied.

NOTE

• 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 gateway where devices using radiofrequencies as means of transmission are prohibited (Refer to local standards in effect).
• Do not install the gateway close to devices that may be affected by radio waves.
• Do not install the gateway where persons wearing a pacemaker may be present.
• Do not install the gateway in a damp environment (for example, a bathroom).

1.2 FACTORY SUPPLIED ACCESSORIES

1.3 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.

1.4 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 wallbox.
   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.

6. Attach the cover of the RF receiver to the wiring plate.

7. Reconnect the mains power to the system.

1.4.1 Dimensional data 1.4.2 Description of the parts

1.4.3 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

1.4.4 Communication

• Radio
  – Radio frequency: 868MHz – 870Mhz

• 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 gateways : 1 H-LINK system gateway

1.4.5 DSW configuration

Factory setting|
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In case of applying high voltage to the terminal 1-2 of TB (Transmitting wires), the fuse on the PcB is cut. In such a case, firstly correct the wiring to TB and then turn ON switch 1 (as showin in the figure)|

1.5 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

2.1 RF RECEIVER
2.1.1 Operation / Alarm LED

Thermostat and RF Receiver
Red LED flashing quickly 3 times| Faulty device
BIND LED (ON and OFF 0.5 seconds)| Binding process

2.1.2 Status LED

Receiver

2.1.3 Reset
To reset the stored data in order to create a new binding in ATW-RTU-05 press BIND button during 15 seconds. 2.1.4 RF transmission
The refresh time of the RF transmission (between wireless room thermostat and main controller) is ranging from 30 sec to 2 minutes.
2.2 THERMOSTAT
2.2.1 Explanation of the icons

| Setting temperature
The figure appearing on the screen corresponds to the setting temperature, instead of the current room temperature.
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| Heating on
Heating is demanding, and thus the heat pump should be in operation, either intermittent or continuous.
| RF Receiver connection
The thermostat is successfully connected to the RF Receiver.
| Low battery
It is necessary to replace the batteries immediately.
| 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.
| 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.

2.2.2 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.
2.2.3 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 5°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..
2.2.5 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 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.
2.2.7 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 and right touch zones for approximately 10 s. The maximum temperature limit is now displayed flashing, touch the left 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.

BINDING THE WIRELESS THERMOSTAT AND RF RECEIVER

The binding operation described below is required if:

• Any of the system components (Room Thermostat or RF Receiver) are replaced.
• The RF Receiver has incorrect or no binding data stored (e.g.when pre-bound system pack components have been mismatched).

NOTE
During the binding procedure keep approximately 1m distance between the Room Thermostat and the RF Receiver.
Hold button on RF Receiver for 15 seconds in order to remove all the configurations. LED will flash red 0.1 sec ON, and 0.9 sec OFF.
Hold button on RF Receiver for 5 seconds. LED will flash red for 0.5 sec ON, and 0.5 sec OFF. Bind the thermostat. Touch and hold on the left touch zone for approximately 10 seconds. The screen for binding the RF Receiver is now displayed.Repeat from step 2 for the 2nd Room Thermostat if necessary.
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.The green LED on the RF Receiver will flash green every 10 seconds to indicate that the device is live.
NOTE
Binding can be cancelled from the binding screen by touching and holding on the left touch zone for approximately 10 seconds.
If binding is unsuccessful, then the LED will stay on. In this case, move the rom thermostat and repeat the procedure from the beginning.
To bind the second room thermostat, repeat the procedure from step 2 to 8 to bind the second room thermostat.
NOTE

• 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-ARFHE).

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.

COMMUNICATION LOSS

In the event of an RF communications loss, the LED on the RF Receiver will indicate which type of fault has occurred.

• If there is a communications fault between the RF Receiver and the Room Thermostat, then the LED on the RF Receiver will flash red for 0.1 sec ON every three seconds.
• If there is a fault in communications between the YUTAKI and RF Receiver, then the LED on the RF Receiver will flash red 3 times quickly and then be off for three seconds.
• If there is more than one Room Unit installed, as in multizone systems for example, and communications is lost with one zone, then the red LED on the RF Receiver will flash two times quickly and then be off for two seconds.
• If there is more than one Room Unit installed, as in multizone systems for example, and communications is lost with both zones, then the red LED on the RF Receiver will flash once for 0.1 sec ON, and 0.9 sec OFF.

Once the faulty device has been identified, replace as necessary and follow the re-binding procedure as described in section “3 Binding the Wireless thermostat and 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

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 red LED is on the receiver box (communication loss)| The receiver box receives no RF messages from the room thermostat:
RF signal is blocked due to wrong location of the room thermostat. Room thermostat batteries are exhausted.| Re-locate the room thermostat.
Replace batteries in the room thermostat.

Johnson controls-Hitachi Air conditioning Spain, S.A.U.
Ronda Shimizu, 1 – Políg. Ind. can Torrella
08233 Vacarisses (Barcelona) Spain
© copyright 2016 Johnson controls
Hitachi Air conditioning Spain, S.A.U. – All rights reserved. Printed in Spain

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| HITACHI ATW-RTU-05 Wireless Intelligent Room Thermostat [pdf] Instruction Manual
ATW-RTU-05 Wireless Intelligent Room Thermostat, ATW-RTU-05, Wireless Intelligent Room Thermostat, Intelligent Room Thermostat, Room Thermostat, Thermostat
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