Rheem Instantaneous Water Heater
Manual de Instalación, Uso y Mantenimiento
Installation Instructions for the Installer
This product installation must be carried out only by certified installers.
Read this instruction manual carefully and keep it for future reference.
Content
- Instructions for the Installer
- Mounting in a cabinet
- General Information
- Gas Exhaust Duct Installation
- Usage Instructions
- Electrical Diagram
- Maintenance
- Technical Specifications
- Internal Diagram of Water Heater
- Safety
INSTALLER INSTRUCTIONS
HOW TO INSTALL IT?
This water heater must be installed only by a certified installer.
- Gas Supply: The water heater must correspond to the type of gas to be used. The identification plate on the side of the water heater clearly indicates the type of gas for which the appliance was designed, as well as the electrical supply voltage for operation and the appropriate protections.
- Water Heater Preparation: Mount the accessory fixings on the wall for securing the water heater.
- Mounting: Hang the water heater on the wall using the 2 anchor ears located on the upper part of the water heater's back. Then, use the lower ears to fix it firmly, ensuring it is correctly leveled. (See page 6, Internal Diagram of Water Heater).
- Installation Curves: To facilitate installation, use the installation curves. These can only be used for cold water connections. For the gas connection, use a flexible metal tube with a wall approved according to ENARGAS standards.
- Gas Exhaust Duct: Before installing, connect the gas exhaust duct outside the water heater collar and seal with high-temperature silicone. The duct must be more than 0.15 m away from combustible material (frames, counterframes, etc.). When it is necessary to pass through a partition or floor made of combustible material, a hole at least 5 cm larger in diameter than the duct must be made to insert an insulating and non-combustible material.
- Leak Check: Open the water and gas shut-off valves, verifying the tightness of both circuits.
CLEANING
Use only a damp cloth or sponge with water and a mild detergent. Do not use any type of abrasive (powder, liquid, and/or synthetic fiber).
GENERAL INFORMATION
WARNING: DO NOT WELD WITHIN 80 MM OF THE COLD WATER CONNECTION (12) AND THE GAS CONNECTION (10). DO NOT REMOVE THE FLOW SWITCH FILTER (25) OR THE GAS FILTER (11). FAILURE TO COMPLY WITH THE ABOVE WILL VOID THE WARRANTY.
MOUNTING IN A CABINET
Diagram showing minimum clearances for mounting the water heater in a cabinet, including ventilation requirements.
- Minimum 10 cm clearance on both sides.
- Minimum 15 cm clearance below.
- Minimum 30 cm clearance above.
- Top ventilation: 333 cm² minimum.
- Bottom ventilation: 666 cm² minimum.
IMPORTANT
- Your water heater must be installed in a room with a minimum volume of 7m³, with ventilation in the door or wall in the lower or upper zone of 150 cm² each, the latter evacuating to the outside of the dwelling.
- It is not permitted to install water heaters in bathrooms or bedrooms.
- Ventilations must be at a maximum height of 0.3 m and the other at a minimum of 1.8 m above the floor, respectively.
- This appliance has a special safety device to prevent carbon monoxide (CO) accidents. However, this does not authorize its installation in bathrooms or bedrooms, nor does it eliminate the regulatory requirements for room ventilation. Any manipulation of the safety devices poses a serious risk to health, the consequences of which will be the responsibility of whoever performs it.
GAS CONNECTION
Keep the gas pipe clean. Gas connection pipes must be metallic and rigid. Install a shut-off valve that can quickly and safely interrupt the gas flow to the water heater. It should be visible, easily accessible, and installed at the lower end of the water heater between 100 and 200 mm. Use gas gaskets.
ELECTRICAL CONNECTION
Class I Electrical Connection. The water heater (Class I appliance) has a 3-pin flat plug with a ground connection for connection to the electrical supply line. Do not eliminate the ground connection by using an adapter or replacing the plug with a 2-pin one. For your safety, your home installation must be equipped with a ground conductor and surge protection elements. If not, carry out the adaptation according to current standards with specialized personnel. Do not open the connection cover without disconnecting the appliance from the electrical supply network.
WATER CONNECTION
Install the cold water on the right and the hot water on the left. Install a shut-off valve for water control on the water inlet (right). Use water gaskets. This water heater must not be used with thermal water or well water. The use of water that does not meet tap water standards may cause corrosion in the machine.
CHECK FOR LEAKS
Open the gas and water shut-off valves. Check the tightness of the appliance and the gas and water connections. Start the appliance. Check the operation and installation of the combustion gas outlet. The installer must explain to the customer the operating mode and handling of the appliance.
We request that this manual be given to the user.
GAS EXHAUST DUCT INSTALLATION
Diagram illustrating the installation of the gas exhaust duct, including minimum lengths and clearances.
- Minimum 3 ml duct length.
- Minimum 60 cm clearance from the wall.
- Minimum 90 cm clearance from the appliance.
- Minimum 50 cm clearance for shaft.
- Maximum 150 cm shaft length.
- Minimum 100 cm clearance for shaft.
USAGE INSTRUCTIONS
After installation, the installer must explain to the user the operation of the water heater and its safety features. For first-time use, follow the sequence below:
- Open the water inlet valve completely.
- Open the hot water tap, confirm water flow, and then close the tap.
- Plug in the power cable or turn on the power supply from the distribution box.
Control Panel: Distribution
Indicator Lamp: Indicates flame status.
Water Flow Indicator: Indicates water flow.
Temperature Increase Button: Increases the set temperature.
Temperature Decrease Button: Decreases the set temperature.
On/Off Button: Turns the water heater on and off.
Turning the water heater on and off:
- Open the gas valve, turn on the water heater, briefly press the "<0xF0><0x9F><0x94><0x8B>" button to turn it on, and then press it again to enter standby mode.
Temperature Adjustment:
- To modify the desired temperature on the display, use the "<0xE2><0x96><0xB3>" (Increase) and "<0xE2><0x96><0xBD>" (Decrease) keys.
- The maximum set value with the tap open is 50°C with 1°C variations.
- To raise the temperature to the maximum permitted 65°C by the controller, you must close the tap and press the "<0xE2><0x96><0xB3>" (Increase) button; in this case, the increment is 5°C until the desired temperature is reached.
Note: For your safety and your family's, it is advisable not to set the water temperature too high. After temporarily pausing hot water use, let the hot water flow for a few seconds before using it to avoid burns.
Energy Saving, Screen Saver: If there is no operation within 2 minutes in standby mode, the display will enter a semi-bright state. When water flow is detected or any button is briefly pressed, the screen saver will exit, and the unit will enter standby mode with the display fully illuminated, showing the current set temperature.
ELECTRICAL DIAGRAM
Diagram showing the electrical connections of the water heater components:
- 1 - Solenoid Valve
- 2 - Flow Switch (Flowswitch)
- 3 - Electrical Connection 220 V 50 Hz
- 4 - Output Temperature Sensor
- 5 - Spark Plugs
- 6 - Ionization Sensor
- 7 - Chamber Overheating Sensor
- 8 - Gas Fumes Return Sensor
- 9 - Control Module
- 10 - Control Panel
MAINTENANCE
PRECAUTIONS AGAINST FROST (Affects Warranty): If the water heater is installed in areas susceptible to freezing due to low temperatures, it is recommended to drain the appliance when it is not in use. To do this, follow these instructions:
- Close the main gas shut-off valve.
- Close the cold water shut-off valve.
- Open all hot water taps in the installation.
- Completely drain the circuit.
Alternatively, you can close the gas shut-off valve and slightly open the hot water tap, allowing a small drip to prevent the water from freezing.
OPERATION CONTROL: When the hot water tap is opened, the flow switch activates the control module, supplying gas and generating a spark at the spark plug. Seconds later, the burner ignites. (If ignition does not occur within 6 seconds, the electronic system will shut down. You must close and reopen the water tap to attempt ignition again).
REPLACEMENT PARTS: For good maintenance and efficient operation of the appliance, it is recommended to always install original factory replacement parts. This guarantees continuous, permanent, and safe use of the water heater.
MAINTENANCE (Not covered by warranty)
After the warranty period, the appliance should be serviced, thoroughly inspected and cleaned, and internal water ducts descaled if necessary.
- COMBUSTION CHAMBER: Clean the finned duct and descale with appropriate commercial products, following the manufacturer's instructions. Replace all gaskets and reassemble the inner body.
- FLOW SWITCH (FLOWSWITCH): Close the cold water shut-off valve, clean the filter, and replace the gaskets.
- GAS CIRCUIT: Check the gas circuit for leaks. To do this, operate the appliance and open the hot water tap; when closing it, the burner should not remain lit. Clean the gas filter located at the gas connection inlet if necessary.
- FRONT: Clean the front with a damp cloth and mild detergent.
- SOLENOID VALVES: Check the correct operation of both solenoid valves as follows: With the water heater operating, disconnect one solenoid valve from its respective electrical connector and check if the water heater turns off. Reconnect the solenoid valve, and repeat the procedure with the second solenoid valve. The water heater should turn off again. If the water heater does not turn off in any of the checks performed, replace the affected solenoid valve with a new one. Note: After 9 years, replace both solenoid valves.
- SPARK PLUG DISTANCE: Verify that the distance of the spark plugs to the burner is approximately 4 mm. If the distance is different, it should be corrected.
WARNING: Insects such as spiders, earwigs, etc., are frequently found inside the burners. Therefore, as this situation noticeably impairs the proper combustion and operation of your appliance, we recommend thoroughly cleaning the inside of the main burners along with your recommended annual maintenance.
IMPORTANT: This appliance has a safety device for the evacuation of combustion gases, which verifies the correct evacuation of gases. If the exhaust duct or chimney is obstructed, this device detects the return of gases, cutting off the gas supply to the main burner and shutting down the water heater. If the appliance is installed without an exhaust duct, it will not function because the gas fumes return safety sensor will activate. This device must never be bypassed. If the gas is cut off by the action of this device, the room ventilation system and chimney ducts must be checked. If it is determined that the sensor is defective, it must be replaced with an identical one of the same origin. To restart the water heater, the room must be ventilated for at least 10 minutes before turning the water heater back on. If the water heater repeatedly goes out of service, call a certified installer.
TECHNICAL SPECIFICATIONS
| DESCRIPTION | UNITS | VALUE | |
|---|---|---|---|
| Approval Number, for GN | LCG-1176 | ||
| Nominal Useful Power | Kw/Kcal/h | 23.2 (20000) | |
| Nominal Calorific Consumption (PCS) | Kw | 24 | |
| Minimum Calorific Consumption (PCS) | Kw | 21 | |
| Natural Gas (GN) Working Pressure | mmH20 | 180 | |
| Gas Connection | ISO 228 | G 1/2 | |
| Minimum Water Pressure (ignition) | kPa(mH20) | 10 (1.0) | |
| Minimum Flow Rate (ignition) | l/min | 3 | |
| Nominal Flow Rate | l/min | 14 | |
| Pressure at nominal flow rate | kPa(mH2O) | 45 (4.5) | |
| Maximum Water Pressure | kPa/bar | 1000(01) | |
| Temperature Increase | °C | 20 | |
| Capacity (for t=20K) | l/min | 14 | |
| Cold Water Inlet (Right Side) | ISO 228 | G 1/2 | |
| Hot Water Outlet (Left Side) | ISO 228 | G 1/2 | |
| Distance between water connections | mm | 250 | |
| Voltage and Electrical Frequency | V, Hz | 220, 50 | |
| Dimensions | Front | mm | 350 |
| Depth | mm | 182 | |
| Height | mm | 600 | |
| Gas Exhaust Collar | mm | 100 | |
| Net/Packaged Appliance Weight | Kg | 11/12 |
INTERNAL DIAGRAM OF WATER HEATER
Diagram showing internal components:
- Gas proportional valve
- Cold water outlet
- Gas inlet
- Flue / Smoke outlet
- Heat exchanger
- Burner
- Water flow sensor
- Cold water inlet
FOR YOUR SAFETY
- IF YOU SMELL GAS:
- Close the gas valve.
- Open the windows.
- Do not press any switches.
- Extinguish any possible flames.
COMMON FAULTS AND ERROR MESSAGES
| PHENOMENON | CAUSE | SOLUTIONS |
|---|---|---|
| No Heating | Electrical supply disconnected | Ensure the power is connected. |
| Appliance not ignited | Press the On/Off Button <0xF0><0x9F><0x94><0x8B>. | |
| Gas not open | Open the gas valve. | |
| Water is cold | Improper water mixture adjustment | Regulate the mixture with the consumption tap. |
| Temperature set too low | Adjust the temperature setting higher <0xE2><0x96><0xB3>. | |
| Water is hot | Improper water mixture adjustment | Regulate the mixture with the consumption tap. |
| Temperature set too high | Adjust the temperature setting lower <0xE2><0x96><0xBD>. | |
| Low water flow | Obstructed filter | Clean the Water Filter. |
| Breaker Tripped | Tap not fully open | Open the water tap to maximum. |
| Low water pressure in the dwelling | Increase local pressure in the dwelling. | |
| Damaged breaker or insufficient electrical capacity for consumption | Replace the breaker. | |
| Display "E0" | Circuit ground connection failure | Contact technical service. |
| Display "E1" | Temperature sensor or open circuit failure | Abnormal sensor. Contact technical service. |
| Display "E2" | Ignition failure/false ignition | Check if gas supply is normal. Please, turn off water and restart. If the water heater still does not function correctly, contact technical service. |
| Display "E3" | Temperature controller failure | Contact technical service. |
| Display "E6" | Over-temperature protection (water exceeds 85°C) | Contact technical service. |
| Display "Ec" | Communication failure | Reconnect the power. If the water heater cannot function properly, contact technical service. |
| Display "EE" | Timer expired | Safety timer reached, close water and then restart. |
FAULT SYMPTOM TABLE
| Fault Symptoms | Causes of Faults | Troubleshooting Methods | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Flame goes out during use | Failure to ignite when hot water tap is opened | Ignition with explosion | Yellow flame with smoke | Normal flame with odor | Abnormal combustion sound | Water not very hot at high temperature setting | Water too hot at low temperature setting | Shuts off at low temperature | Flame does not go out when hot water tap is closed | ||
| Main Gas Valve not open | X | X | Open the main gas valve. | ||||||||
| Main Gas Valve partially open | X | X | X | Fully open the main gas valve. | |||||||
| Air in the Gas Line | X | Open and close the valve until the burner is purged. | |||||||||
| Abnormal Pressure | High | X | X | Contact an Installer. | |||||||
| Low (in Installation) | X | X | Certified Installer. | ||||||||
| Hot water tap not open | X | Fully open the hot water tap. | |||||||||
| Freezing | X | Use only after defrosting. | |||||||||
| Insufficient cold water inlet pressure | X | X | X | Check the cold water inlet pressure. | |||||||
| Incorrect water adjustment method | X | X | X | X | Adjust water temperature and taps appropriately. | ||||||
| Inadequate fresh air intake | X | Improve ventilation. | |||||||||
| Safety device activated | X | X | Consult the operating method when the safety device is activated. | ||||||||
| Burner Blocked | Contact professional technicians for consultation or repair. | ||||||||||
| Heat exchanger blockage | Contact professional technicians for consultation or repair. | ||||||||||
| Water control device malfunctioning | X | X | Contact professional technicians for consultation or repair. | ||||||||
| Main controller | X | X | X | X | X | Contact professional technicians for consultation or repair. | |||||
| Loose wiring | X | X | Contact professional technicians for consultation or repair. | ||||||||
| Defective solenoid valve | X | X | Contact professional technicians for consultation or repair. | ||||||||
| Defective electrode | X | Contact professional technicians for consultation or repair. | |||||||||
| Excessive air pressure | X | X | Clean the air outlet. | ||||||||
| Power outage | X | X | Turn on the unit. | ||||||||
Rheem S.A. Warranty
RHEEM S.A. guarantees this product for a period of 1 year from the date of purchase. During the warranty period, all interventions must be carried out by the Official Technical Service of RHEEM S.A. If performed by unauthorized persons, the warranty will be void for obvious reasons. A list of official technicians nationwide is attached.
WHAT ASPECTS ARE INCLUDED AND COVERED?
This warranty covers the free repair or replacement of any part or component, provided it is determined that the defect is caused by a material or manufacturing defect.
If manufacturing defects are irreparable, the unit will be replaced.
RHEEM S.A. determines if the cause of the failure is due to manufacturing defect, misuse, or faulty installation.
In case of a manufacturing defect, the obligation will be to restore it to normal operating conditions within a period not exceeding 30 days from the date the fault was reported.
RHEEM S.A. is not responsible for problems caused by limescale buildup in the water ducts (scale).
Please remember that for warranty service, you must present the purchase invoice and the name and registration number of the installer who performed the unit's installation.
Genuine spare parts will be provided by specialized services.
WHAT ARE THE USER'S RESPONSIBILITIES?
- Read and follow the instructions in this user and maintenance manual before operating the unit.
- Keep the purchase invoice, as it is necessary to prove the validity of the warranty.
- Present the personal data and registration number of the professional who installed the unit.
WHY CAN THE WARRANTY BE TERMINATED?
- If the water heater installation has not been carried out in accordance with the Provisions and Standards of ENARGAS and/or other current regulations, and the instructions in this Installation, Use, and Maintenance Manual have not been followed. Therefore, installation by a certified installer is mandatory.
- If any modifications have been made to the appliance; if it has been used in corrosive environments or for purposes other than heating water for sanitary use.
This certificate, in compliance with Law 24240 and its regulatory decree 1798/94, annuls any other implicit or explicit warranty for which we expressly do not authorize any other person, company, or association to assume any responsibility on our behalf regarding our products.
RHEEM S.A. Av. del Libertador 6570 Piso 6 (C1428AR) - BS. AS. - Argentina.
Customer Service: 0810-888-6060
www.saiar.com.ar - servicioalcliente@rheem.com.ar
