EVOHEAT EVO270-E (01) PDF Document

Measurement conditions for instant heating are:

• Ambient air temperature: 20°C/15°C

• Water inlet: 15°C

• water outlet: 55°C

• highest setting temperature: 75°C

1. Press and hold the power button for one second to power on the unit.

2. To set the time:

a. Press the CLOCK button once so the hour digit starts flashing. Use the UP/DOWN arrows to adjust the hour and press the CLOCK button to confirm, then repeat for the minute, day, month and year.

b. Press the power button at any stage to cancel.

3. Press the MODE button until the ECO HEATING MODE icon is displayed. This will activate ‘Eco Heating’ (Heat Pump only) mode and will provide the most efficient heating.

4. During periods of unusually high hot water demand, you can activate ‘High Requirement’ mode by pressing the MODE button until the HIGH REQUIREMENT MODE icon is displayed.

5. In any event where there is a failure within the system, the Electric Element (Hydroboost Mode) can be engaged by pressing the HYDROBOOST button until the HYDROBOOST icon is displayed. This will provide emergency water heating until service can be attended.

The EVOHEAT EVO270-E unit comes with a cable protruding from behind the front panel. If you DO NOT plan to utilise Wi-Fi, the connecter cable can be pushed behind the panel.

If you DO want to use Wi-Fi:

1. Remove the waterproof cover from the cable protruding from the unit.

2. Connect the Wi-Fi module to the cable.

3. Set up the connection as per the Wi-Fi manual.

4. Install the Wi-Fi module upright (cable pointing down), with the connection placed behind the front panel.

5. Ensure the connection plug has heat shrink applied to protect it from water and dust.

Note: If you do not have a Wi-Fi module to install, apply heat shrink to the plug to protect it from water ingress.

General Compliance:

• Adhere to all safety instructions and recommendations to avoid voiding the warranty and risk of injury or death.

• Installation, repair, service or relocation must be performed only by qualified technicians.

• The unit must be installed to conform to all relevant Australian Standards and Industry Codes including but not limited to: Electrical & Electrical Safety, Plumbing & Hot Water Storage, Heat Pump Installation & Operation.

• Installation must also comply with any local, state or federal codes at the installation site.

Electrical & Installation Safety:

• Install a circuit breaker for the unit.

• Ensure good power connection and earthing.

• Disconnect all supply circuits before accessing terminals.

• Use a qualified electrician for electrical work, ensuring cabling, circuit breakers, and protections are suitable.

• Avoid leaks in plumbing and drainage fittings.

• Do not install near flammable gases or aerosols.

• Ensure a level, stable base.

• Comply with national wiring regulations and local codes.

• Keep the area around the unit dry, clean, and well-ventilated for optimal heat transfer and energy efficiency.

• Do not drill any fixings or attachments into the outer casing of the tank. Drilling into the outer casing of the tank may damage the heating coil and WILL VOID WARRANTY.

Operational Safety & Maintenance:

• A Pressure & Temperature (P&T) valve must be installed in the tank. When the tank pressure reaches 0.85MPa or when the tank temperature reaches 99°C, the P&T valve will open automatically to reduce the pressure or temperature.

• Use the unit within the environmental temperature range of -5°C to 43°C.

• Install temperature and pressure protective equipment as required by local codes.

• Avoid using unsafe water sources such as lake or groundwater.

• Be cautious of hot fittings.

• Observe a 3-minute delay when manually restarting the unit.

• Test the P&T valve biannually for blockages.

• Use a 5A/250VAC safety cable meeting explosion-proof requirements.

• Secure all connections before powering on.

• For systems unused for over two weeks, open a hot water faucet for several minutes before using any electrical appliance to prevent flammable hydrogen gas build-up.

• In the event of the unit malfunctioning, shut off the power supply and contact your supplier or EvoHeat.

Button Battery Warning: THIS PRODUCT CONTAINS A BUTTON BATTERY. If swallowed, a lithium button battery can cause severe or fatal injuries within 2 hours. Keep batteries out of reach of children. If you think batteries may have been swallowed or placed inside any part of the body, seek immediate medical attention.

• Do not drill any fixings or attachments into the outer casing of the tank as it may damage the heating coil and will void the warranty.

• The P&T valve attached with the unit must be installed. Failure to do so will cause damage to the unit and possible personal injury. The spec of the P&T valve is: Pressure: 0.85MP, Temperature: 99°C.

• Do not use stainless steel fittings to connect directly with other metals to prevent galvanic corrosion.

• Use BSP3/4 internal thread pipes for water inlet and outlet, ensuring they are heat-resistant and durable.

• The P&T valve should also use a BSP3/4 internal thread. Ensure its drainpipe outlet is exposed to air and the flexible drainpipe points downwards.

• Drain the water tank through the drain valve at the bottom part of the unit if needed.

The unit should be stored and transported in an upright position, without water. It is allowed a maximum tilt of 30 degrees for short distances. Keep it within ambient temperatures of 0°C to 40°C.

• For forklift transportation, the unit must remain on its pallet, be lifted slowly, and be secured to prevent tipping over.

• When manually transporting, use the wooden pallet and ropes or straps, ensuring the unit doesn’t exceed a 60-degree tilt.

• After any inclined transport, let the unit rest for an hour before operation.

The heat pump is designed for external installation. However, where possible, installing the unit under the house eaves or in a sheltered environment may help prolong the life of the system.

Heat pumps operate most efficiently with warmer air temperatures. The outlet air from the unit will always be colder than the inlet air. Therefore, it is advisable to install the unit so it receives the warmest air temperatures possible and that the cold air is not able to recirculate back into the unit.

The unit must be installed with sufficient clearances to allow airflow to circulate through the unit. It is advised to keep a minimum gap between walls/fences of:

• Air Inlet (Left): 300mm

• Air Outlet (Right): 500mm

• Overhead & Rear Clearance: 100mm

Without sufficient airflow, discharged cold air will recirculate into the unit and consequently lower the heating efficiency or cause potential compressor failure. Non-compliant installations risk voiding the warranty; ensure adherence to AS/NZS 3500.4.

1. Open a hot water tap inside the house.

2. Open the cold-water inlet valve into the unit to fill the tank.

3. When water begins flowing out of the hot water tap inside the premises, turn off the hot water tap.

PRE-INSPECTION

1. Check the water supply to the tank and pipe connections for possible leaks.

2. Check that the following devices are installed and operating correctly:

• Drainpipes

• P&T Valve

• Filter on inlet

• Water softening and pressure reducing devices if required.

3. Check that all power connections are secure before switching on.

4. Check that the installation space is adequate.

TRIAL OPERATION

1. Switch on the unit by using the controller.

2. If any unusual noises occur, switch the power off and consult your provider.

3. The parameters have been pre-set to a temperature of 60 degrees. Check that the unit is operating by looking for an increase in water temperature over time.

To both lock and unlock the controller, press and hold the MODE button for 5 seconds. When the controller is locked, a lock symbol will appear on the bottom right.

Press and hold the ON/OFF button for 0.5 seconds in the standby screen of the controller to turn the unit on. The main display will show the water outlet temperature.

Press and hold the ON/OFF button for 0.5 seconds in the running screen of the controller to turn the unit off. The main display will show “OFF”.

The unit will dim the screen and display the standby screen when the controller has not been touched for a minute. Touch the power button to wake it.

Note: The ON/OFF button can only be used to turn the unit on/off in standby or on the running screen of the controller.

From the running screen, press the MODE button to select one of the following modes: Heating, Eco Heating, Intelligent, High requirement, Vacation. We recommend running the unit in Eco Heating mode where possible for maximum energy efficiency.

1. In the standby or running interface, press the UP or DOWN arrow once to check the target temperature of the outlet water.

2. Press the UP or DOWN arrow again to change the target temperature.

3. After making changes to the desired temperature, press the MODE button to confirm or the ON/OFF button to cancel, then return to the previous screen.

If the keypad is left idle for 5 seconds, the controller will exit the menu automatically and apply any changes that were made.

The Hydroboost setting, also known as the Electric heater, allows higher levels of hot water to be produced. This function may come in useful when there are high hot water usage requirements (such as guests staying).

The Hydroboost setting can be turned on when the unit is in heating or in standby mode. Press the HYDROBOOST button once to turn Hydroboost on or off. When activated, the Hydroboost icon will light up on the main display.

In the extremely unlikely circumstance of the unit icing up (for example, if the unit was installed inside with no ventilation), this function can be applied.

When the unit is off, press and hold the HYDROBOOST button for 10 seconds to enable the forced defrosting function. The defrosting symbol will light up. Press the HYDROBOOST button for 10 seconds again to exit the forced defrosting function.

1. In the standby or running interface, press the CLOCK button once. The hour digit will flash.

2. Press the UP or DOWN arrow to change the hour setting, then press the CLOCK button to confirm.

3. Repeat this process to change the minute value, then the month, then the day.

4. After setting the day, press the CLOCK button to confirm and save changes.

Timers can be set in standard mode, economic mode, auto mode & fast heating mode. They can be set by using buttons or using the touch timing circle. The unit will run during the lit time periods and stop in the dim areas.

Touch Method:

1. Press and hold the CLOCK button for 2 seconds (the timer display will flash).

2. When the timer display flashes, touch the start-up time and end time on the circular touch timing display.

3. Press the CLOCK button to save the setting and exit back to the main interface.

Button Method:

1. Press and hold the CLOCK button for 2 seconds (the timer display will flash).

2. When the timer display flashes, choose the start-up time and end time by pressing the UP or DOWN arrows and the MODE button.

3. Press the CLOCK button to save the setting and exit back to the main interface.

To cancel a timer:

1. Hold down the CLOCK button for 2 seconds until the timer display begins flashing.

2. Press the ON/OFF button while the timer is flashing to cancel it. The yellow timing periods will disappear when the timer has been cancelled.

Vacation Mode allows you to turn the unit off to conserve power for an extended period of time and restart operation on a date you specify. This ensures you have hot water waiting for you upon your return.

1. Ensure the unit is ‘OFF’ before setting vacation mode. The date you set in this mode will determine what date the unit starts back up.

2. From the off state, press the MODE button to select vacation mode.

3. Press and hold the MODE button for 2 seconds, the ‘month’ value will begin to flash in the display area. (Note: Format is mm/dd).

4. Press the UP or DOWN arrows to display the desired month, then press the MODE button to confirm and move to altering the ‘day’ value.

5. The ‘day’ value will flash when it is selected. Use the arrow keys to select your desired start day, then press the MODE button to save all changes and exit back to the main interface.

Example: To set the unit to start up on September 28th, you would set the date to 09-28.

The Sanitech feature’s purpose is to keep the water free of bacteria such as Legionella by heating the tank water to 60°C each day at midday.

An instance when you may want to alter the Sanitech function is if you have solar power and would prefer the Sanitech to run during the day, for example, at a specific time to maximise solar energy use.

If you would like to change this function, contact EvoHeat’s service department for guidance. Incorrectly attempting to adjust these settings yourself could significantly disrupt the unit’s operation.

This function may come in useful if the system is installed inside and the fan settings need to be adjusted to suit ducting or external ventilation. This function allows you to set the fan speed as Off, Low Speed or High Speed.

If you would like to change this function, contact EvoHeat’s service department for guidance. Incorrectly attempting to adjust these settings yourself could significantly disrupt the unit’s operation.

After the unit is powered on, following a shutdown, there is a built-in delay of 3 minutes before the compressor starts running. This delay is a self-protection feature of the unit, designed to prevent damage and ensure the system’s longevity.

Initially, there is a variation in water temperature between the upper and lower layers of the tank. As the heating process begins, the temperature in different parts of the tank equalizes, which initially causes a slower rise in temperature. Once the temperature becomes more uniform throughout the tank, the increase on the display will be faster.

If there is a significant temperature difference between the upper (hotter) water and the bottom (colder) water in the tank, the water temperature may decrease slightly due to convection currents. These currents occur as hot water rises and cold water sinks, leading to a temporary mixing and a slight decrease in temperature.

The unit is designed to avoid frequent on/off cycling. To prevent unnecessary cycling, the unit is programmed not to start heating again until the water temperature decreases by more than 5 degrees. This feature helps in conserving energy and extending the life of the unit.

The decrease in outlet water temperature occurs due to the mixing of hot and cold water within the tank. When the hot water at the top of the tank is depleted, cold water from the bottom can reach the upper sensor, resulting in a sudden temperature drop.

This happens because the upper sensor is located near the top of the tank. Even when the display indicates a significant decrease in outlet water temperature, approximately one-fifth of the tank’s capacity for hot water remains available.

In heating mode, the unit may need to defrost if the evaporator freezes due to low ambient temperatures. During this defrosting process, the compressor will stop operating, but the fan will continue to run to facilitate defrosting.

The unit is engineered for optimal energy efficiency, which means it operates with lower power consumption. The usual heating time ranges between 2 to 6 hours, depending on factors such as the initial temperature of the water, the volume of water usage, and the surrounding environmental temperature. This duration is standard for heat pumps and reflects the balance between energy efficiency and effective heating performance.

WARNING: Failing to operate the relief valve easing gear at least once every six months may result in the water heater exploding. Continuous leakage of water from the valve may indicate a problem with the water heater.

The Pressure and Temperature (P&T) valve is crucial for maintaining safe levels inside the tank. It automatically opens to release water if either the temperature or pressure exceeds the predetermined settings, preventing dangerous build-ups.

Maintenance of Safety Valve: Test the safety valve handle every six months to clear out calcium carbonate deposits and ensure the valve is unblocked. Be cautious of the high temperature of the discharged water to avoid burns. Additionally, keep vent pipes thermally insulated to prevent them from freezing in winter, which can pose safety risks.

Valve Replacement: If replacement of the P&T valve is necessary, it should match the original in performance, size, and specifications.

The overheating protector is designed to turn off the power during emergencies or power issues, ensuring the water doesn’t overheat. In the event of a thermal cut-out, consider it a potential safety hazard. It’s crucial to have the unit serviced by a qualified technician before attempting a reset.

To return the unit to its normal operation status by resetting manually:

a) To access the overheat protector, remove the front dark grey controller panel.

b) Remove the 3 screws on the front panel and push the front cover upwards.

c) Remove the remaining screws which cover the overheat protector panel.

d) Press the red button to reset.

The water from the hot water tap and the drain plug will be hot. Be careful of burns and scalds. Wear protective clothing.

1. Close the cold-water inlet valve into the EVO270-E.

2. Open a hot water tap inside the premises.

3. Undo the drain plug on the base of the unit to drain the water from the system.

It is recommended that the minor maintenance be performed every 12 months by the dwelling occupant. The minor maintenance includes:

• Operate the easing lever on the temperature pressure relief valve. It is very important you raise and lower the lever gently. Exercise care to avoid any splashing of water, as water discharged from the drain line will be hot. Stand clear of the drain lines point of discharge when operating the valve’s lever.

• Operate the easing level on the expansion control valve (if fitted). It is very important you raise and lower the lever gently.

• Conduct a visual inspection of all plumbing and electrical connections.

• Check the condensate drain line to ensure it is not blocked.

• Check that air vents and evaporator is not blocked or obstructed, and if necessary, isolate the power to the system and clear with a brush.

• Conduct a general external clean of the unit with a damp cloth.

It is a warranty requirement that a three (3) year service must be conducted on the EVO270-E. Servicing of a water heater must only be carried out by qualified personnel.

The service includes the following actions:

• Replace the temperature limiting valve.

• Replace the temperature pressure relief valve.

• Inspect the anode and if required, replace the anode. If the anode is not replaced, it should be replaced within three years of this service.

• Check the heating cycle of the unit.

• Visually check the unit for any potential problems.

• Inspect the plumbing and electrical all connections.

• Check the condensate on drain line to ensure it is not blocked.

Note: The water heater may need to be drained during this service. After the completion of the service, the water heater will take some time to reheat the water. Depending upon the power supply connect on, hot water may not be available until the next day.