HITACHI ATW-RTU-04 Wireless ON OFF Room Thermostat Instruction Manual

HITACHI ATW-RTU-04 Wireless ON-OFF Room Thermostat

Specifications:

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.

Product Usage Instructions

1. Installation Instructions

Follow the detailed installation guide provided in the manual to set up the wireless room thermostat correctly.

2. Operation Instructions

Learn how to operate the wireless room thermostat efficiently by following the instructions outlined in the manual.

3. Binding the Wireless Thermostat and Heat Pump Relay (Receiver)

Ensure proper binding between the wireless thermostat and the heat pump relay by following the step-by-step guide provided in the manual.

4. Replacement of the Batteries

When it’s time to replace the batteries, refer to the manual for detailed instructions on how to safely replace them.

FAQ

Q: How do I dispose of the product and its batteries properly?

A: The product and batteries should not be mixed with general household waste. They must be disposed of according to local or national regulations for proper treatment at specialized facilities for reuse, recycling, and recovery.

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 an 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 that COULD result in severe personal injuries or death.

CAUTION – Hazards or unsafe practices that 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

FACTORY SUPPLIED COMPONENTS

HEAT PUMP RELAY (RECEIVER) INSTALLATION

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

2. Remove the wiring plate from the Heat Pump Relay.

   • a. Carefully press a screwdriver into the opening until the cover comes free.
   • b. Tilt the cover upwards and remove it.

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

4. Connect the Heat Pump Relay wiring.
   Please refer to wiring diagram

5. Wiring for a YUTAKI.

6. Attach the heat pump relay to the wiring plate

7. Reconnect the mains power to the system.

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 forward .

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

HEAT PUMP RELAY (RECEIVER)

Reset

To reset the stored data in ATW-RTU-04 press BIND button for 15 seconds.

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.

• Heat pump relay connection
  The thermostat is successfully connected to the heat pump relay.

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

• RF communication error
  These icons flash to indicate that the signal from the heat pump relay is not properly received. Check that the heat pump relay 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.

• 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 the 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 5°C is suggested, but this depends on the heating system and the amount of insulation of the building.

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.

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 10ºC (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 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 HEAT PUMP RELAY (RECEIVER)

There are two touch zones just below the thermostat display, which are used to access menus and functions

1. First, set the Heat Pump Relay (Receiver) into binding mode by holding down the BIND button for 5 seconds, until the red LED flashes 0.5 seconds on 0.5 seconds off.
2. Bind the thermostat. Touch and hold on the left touch zone for approximately 10 seconds.
3. The screen for binding the Heat pump relay is now displayed.
4. When the symbol “bo” is flashing, rotate the setting ring until the “ ” symbol is shown
5. Briefly touch the left 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 the screen. Please try again
7. The red LED on the Heat pump relay will turn off when binding has been successful.
   NOTE
   Binding can be cancelled from the binding screen by touching and holding on the left touch zone for approximately 10 seconds.

REPLACEMENT OF THE BATTERIES

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

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.

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