Corbero Ctwg30cd Electric Water Heater User Manual (+ PDF)

1. After determining the installation position, drill two holes
with a spacing of 62mm and a diameter of 10mm in the horizontal
direction of the wall.

2. Insert two plastic expansion tubes into the holes and secure
the host mounting plate with fastening screws.

3. Align the two hanging holes on the back of the water heater
with the two hooks of the hanging plate and pull down with force to
hang the water heater onto the hooks.

Multiple Outlet Connection:

If you want to implement a multi-pipe supply system, refer to
the provided drawing for connection instructions.

Piping and Electrical Connection:

Refer to the provided reference diagram for connecting the water
inlet joint, drain handle, thread screw, pressure relief opening,
safety valve, and inlet valve.

Test Run:

After completing the installation, open all valves in the
pipeline.
Open the hot water tap to fill the water heater with water and
then close the tap.
Check for any leaks in the pipes. If there are leaks, reconnect
the pipes.
Unscrew the stop screw at the handle of the safety valve and
pull the handle to check if water is discharged smoothly
(continuous water outlet indicates normal operation).
If everything is functioning normally, switch on the power and
operate the water heater according to the instructions in the
operation method section.
When finished, power off and disconnect the appliance.

Warnings and Notices:

Warning: The pressure relief temperature of the safety valve
may cause scalding.
Caution: Please confirm the actual water temperature before use
to avoid excessively low or high water temperature. Turn the
thermostat to the lowest temperature before unplugging the power
cord.
Notice: Periodically pull the safety valve handle to check if
the relief valve drain is unblocked. If not, contact us. In cold
areas, when the appliance is not used for a long time in winter,
empty the water to prevent freezing and damage. Check frequently
for leaks under the sink where the appliance is installed to avoid
danger.

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CTWG15CD / CTWG30CD
Obrigado por ter escolhido o nosso produto. Por favor, leia atentamente este manual antes de instalar e u lizar este produto.
CTWG15CD / CTWG30CD
Obrigado por ter escolhido o nosso produto. Por favor, leia atentamente este manual antes de instalar e u lizar este produto.

Smart Light Outlet Pipe(red)

Heating Indicator Light ELCB
Control Panel Inlet Pipe(blue)

Installation Precautions

Cautions

The wall for mounting the appliance shall be able to withstand at least fourfold of the total mass of the appliance when filled with water. Take reliable reinforcement measures when necessary. Appliance should be installed as close as possible to frequent water points to reduce heat loss from pipelines. Adequate space must be left around the appliance to facilitate future maintenance. When the appliance is installed above the ceiling, the ceiling shall be provided with a movable plate and a maintenance window for removing and installing the appliance. Safety drainage measures such as floor drains must be in place to prevent leakage of appliances from causing damage to other facilities.
It must be installed indoors and where the temperature of the link is above 0,
so as not to cause ice to break the water pipe of the tank. There should be no inflammable or explosive objects around the installation appliance. Do not reverse connection of inlet and outlet water pipes. Sealing gaskets should be installed at the interface of inlet and outlet water pipes, and the rotating force should be appropriate during installation. A safety valve (a pressure relief device) shall be installed at the inlet of the appliance through which water may flow out of the relief valve drain pipe. The outlet of the relief valve shall be maintained in contact with the atmosphere. The drain pipe should be securely fixed at the outlet of the relief valve. The attachments provided by our company must be used. Sockets providing power to appliances must be reliably grounded. Do not install power sockets in places that may be damp or wet. The installation must be performed by professional installation personnel.

Packing List
Name Water Heater Manual Safety Valve Water Drain Pipe Fastening Screw

Quantity 1 1 1 1 2

Name Bracket Sealing Gasket Plastic Expansion Tube

Quantity 1 1 2

CTWG15CD

CTWG30CD

15L

28L

8kg

11.2kg

1500W

380x380x325mm

440x440x390mm

220-240V~ / 50-60Hz

0.75MPa

PX4

30 to 80

Methods of Installation

Equipment installation

After the installation position of the appliance is determined, drill two holes with

a spacing of 62mm and a diameter of 10mm in the horizontal direction of the wall according to the size as shown in the following figure, and the hole depth shall not

be less than 70mm. Insert two plastic expansion tubes into the hole, and secure the host mounting plate with fastening screws.

Align the two hanging holes on the back of the appliance with the two hooks of

the hanging plate and pull down with force to make the hanging holes hang into the

hook.

Water Heater

Hanging Hole

Water Heater Bracket

Wall

Plastic Expansion Tube

Install the wall hole
Take the above sink water heater installation diagram as an example

Fastening Screw

Warning: The appliance must be hung securely to prevent personal injury and property damage from falling. Tube Connection The specification of inlet and outlet water interface of this appliance is GI/2. Connect pipes according to the following figure. Connect the gasketed safety valve attached to the inlet port of the appliance with the arrow pointing in the direction of flow. Insert the drain pipe into the bottom of the safety valve outlet, the other end of the continuous downward to the safe drainage (such as into the floor drain), the drain pipe should be unobstructed installation, and the safety valve outlet is connected with the atmosphere. When the water inlet pressure is more than 0.55 MPa, an additional safety valve should be added on the water inlet pipe.

Multiple Outlet Connection If the user wants to implement a multi-pipe supply system, please refer to the method shown on the drawing for connection.

Ground Connection Safety Valve Inlet Valve
Piping and Electrical Connection Reference Diagram

Water Inlet Joint
Drain Handle Thread Screw Pressure Relief Opening
Safety Valve

Notice

The rated pressure of safety valve is 0.8MPa. When the pressure of the pipeline system exceeds its rated pressure, the safety valve will automatically drain and relieve pressure, and water flow out of the outlet is a normal phenomenon. The drain pipe connected to the pressure relief device (safety valve) must be installed in a continuous downward direction in a frost-free environment. (Lead the other end continuously downward to a safe drain (such as into a floor drain) to prevent hot water from flowing out). The blue is the water inlet, and the red is the water outlet. If the hot water pipe is too long, it should be insulated to reduce heat loss. When setting a power socket, determine the installation position according to the actual length of the cable.

Test Run
After all installation is completed, open all valves in the pipeline, then open the hot water tap, fill the appliance with water and close the hot water tap. Check whether the pipes are leaking. If so, reconnect the pipes.
Unscrew the stop screw at the handle of the safety valve, pull the handle of the safety valve, and check whether the water discharge of the safety valve is smooth (continuous water outlet means normal).
After confirming normal operation, switch on the power and run the appliance according to the operation method section. Power off and disconnect when all is well.

Operador

Sensor de temperatura

Castanho

L-entrada

Amarelo/verde Azul

Controlador

Controlador da temperatura

Elemento de aquecimento

Warning

Caution

The pressure relief temperature of the safety valve may cause scalding.
Scalding may occur if the temperature is set to more than 50. It must be mixed with cold water before use. The appliance uses 220-240V~/50-60Hz power supply. Do not pull or plug the power cord with wet hands. Do not close the water inlet valve, and do not turn on the power supply when the appliance is not filled with water, so as not to damage the appliance. The safe service life is 8 years. When the product is still used after the safe service life, it may cause fire or injury due to the deterioration of quality as years of disrepair. Do not allow children to operate the appliance to avoid accidental injury.

Notice

Please confirm the actual water temperature before use to avoid too low or too high water temperature. Turn the thermostat to the lowest temperature before unplugging the
power cord. Periodically pull the safety valve handle to check whether the relief valve drain is unblocked. If not, please contact us. In cold areas, when the appliance is not used for a long time in winter, the water should be emptied to prevent the appliance from freezing and damage. When the appliance is installed under the sink, check frequently whether the sink is leaking to avoid danger to the appliance.

Method of Usage
Water Injection When the water heater use at the first time or used again after outage for a long time, should inject water. Open all valves in pipeline, and then turn on the hot water tap. When the water continuously flow, it replies that water heater have been filled with water. Turn off the hot water tap, kept cold water pipe valve opening, make sure that cold water could automatically add after hot water usage. And make appliance has always been filled with water.

45…80

Schematic diagram of the control panel

Description of Usage
(1) ” ” key: Repeatedly operate this key and the system will enter power-on-wait. (2) ” ” key: repeatedly operate this key to enter and exit the “Smart” mode in the
power-on state. (3) ” ” key and ” ” key: in the power-on state, touch this key to adjust the set
temperature.One time increases or decreases 5 (ie 30-35-40-45…80-30), long press is invalid. ” ” for Decrease, ” ” means increase. (4) After the power is turned on, the actual temperature of the display (constantly bright)/set water temperature (flashing), when setting the appointment time (flashing display). A fault code is displayed when a fault occurs. (5) “Smart ” light: In the “Smart ” working mode, it flashes during the statistical data period, and is always on after the statistical data is completed. (6) “Heating” light: the light is on in normal heating state, flashes at 1Hz in antifreeze heating in shutdown state, and goes out in non-heating state.
2. Function description: a. Immediate heating: in the power-on state, the water heater directly heats, when
the water heater reaches the set temperature, it stops heating and enters the heat preservation state. After that, if the water temperature drops below the set temperature by 8 degrees, it will be reheated, and so on. The heating light is on when heating. b. “Smart “mode: In this working mode, the system analyzes, processes and memorizes the user’s water usage habits for a week, and then the system will heat in advance according to the memorized water usage time. c. Antifreeze: After the system is powered on (regardless of whether it is turned on
or not), as long as T5, the electric heating tube will automatically start to enter
the heating state, and when T=10, it will automatically exit the antifreeze heating state. d. Power-off memory: When the system is powered off, all parameters and working modes are saved. After the power is restored, the parameters before power-off are still entered into the real-time working mode. e. Fault code display: When the system self-check fails, the two-digit digital tube flashes to display the corresponding fault code. Among them: the dry burning fault is E2, the sensor fault is E3, and the over-temperature fault is E4.

Identify and Deal with Common Faults
If water heater broke down during normal use, please immediately cut off the power, check according to the following content.

fault phenomenon

cause of issue

Approach

Whether there is no water outside Whether there is no water outside

or the water pressure is too low

no water

Whether the water inlet and outlet Whether the water inlet and outlet

shut-off valve is open

Whether the pipeline is blocked Whether the pipeline is blocked

The water is not hot (no display on the display)

Power failure or the power switch is Check the power supply line in the off position

Internal circuit failure

Contact the maintenance department

The water is not hot (Display works normally)

The heating temperature is set too low The heating time is too short-10 Mixing valve failure Internal circuit failure

Increase the heating temperature Continue heating Replace the mixing valve Contact the maintenance department

Display shows code “E2”
Display shows code “E3” Display shows code “E4” The water is suddenly cold and suddenly hot

The water heater is powered on without water, and dry burning occurs

Turn off the power, fill the water heater with water first, and then turn on the power

Damaged sensor Thermal cut-out fault

Contact the maintenance department Contact the maintenance department

Unstable water pressure outside

When the water pressure is normal

Drip from safety valve drain

Normal phenomenon

Connect to drain and lead to safe drain

The discharge port of the safety valve continues to Water pressure too high flow water

Install a pressure limiting valve on the water inlet line

Wiring Diagram
Cleaning
Use dry cloth or wet cloth to dip a little of neutral cleaner to wipe water heater surface, do not use gasoline or other solvents, mustn’t spray water.
Descaling
According to the local water quality condition, when water heater using a certain time (usually 1 months), need to remove dirty scale: first turn off the water heater, close the inlet valve, separate the connection between inlet and outlet, empty inner tank water. After descaling, reinstall the inner tank connection between inlet and outlet.
Draining
With long-term outage or maintenance, first cut off the power supply, turn off the inlet water valve, separate the connection between the inlet and outlet water pipe, empty it by upside down, and reinstall the connection between the inner tank and the connection between inlet and outlet water pipe. When using again, the inner tank must be filled with water before connecting the power supply.

Replace Magnesium Anode

The magnesium anode is to prevent corrosion in the inner tank, which is a consumptive part. After installation, need to check once a year. If the magnesium anode is about to run out or has been run out, should be replaced immediately with the same specifications of the magnesium anode, to ensure the service life of the water heater.

Caution

Pull out the power cord before maintaining. Non-professional maintenance personnel disassembly, maintenance and modification of water heater shall be strictly forbidden. The safety valve (pressure relief devices) need to regular take action, to remove calcium carbonate sedimentary and prove that it is not blocked. If blocked, please repair in time. Drainage must be within the container under the water temperature
below 40 , avoid scald.

Product Specifications

Model Parameter Rated Capacity Net Weight(anhydrous condition) Rated Power Product Size(AxBxCmm) Rated Voltage Rated Pressure Waterproofing Grade Setting Temperature Range

CTWG15CD

CTWG30CD

15L

28L

8kg

11.2kg

1500W

380x380x325mm

440x440x390mm

220-240V~ / 50-60Hz

0.75MPa

PX4