GAS 26L OUTDOOR NG/LP GAS GAS TANKLESS WATER HEATER INSTRUCTIONAL MANUAL Keep this manual with you after your unit has been installed, you may need it for further technical information. USA (855) 627-3955 www.marey.
Congratulations! You've just purchased a new Marey Gas Powered tankless water heater and will soon begin to enjoy the benefits of "going tankless." The availability of instant hot water, combined with the unit's outstanding energy efficiency and space saving design, will quickly prove you that you've made the best decision for meeting your home's hot water needs.
INDEX IMPORTANT NOTES 04 PERFORMANCE FEATURES 06 INTRODUCTION 08 INSTALLATION 11 REMOTE CONTROLLER 21 INITIAL OPERATION 23 NORMAL OPERATION 24 MAINTENANCE AND SERVICE 25 PACKING LIST 30
1. IMPORTANT NOTES - This manual has been prepared for the installation and use of the equipment. - Please keep it in a safe place for future reference. 1.1 INSTALLATION NOTES The installation must be done in accordance with the information supplied in this manual. All other relevant national, state and local regulations must also be adhered to including (but are not limited to): - National Fuel Gas Code: American Standard ANSI Z223.1/NFPA 54. Canadian Standard CSA B149.
1.4 PLUMBING NOTES - PLEASE NOTE GA26O model is supplied factory pre-set at Nominal 70°C maximum outlet watertemperature to comply. - The GA26O unit REQUIRES a temperature control device to be installed. - Please follow all the instructions in the Installation Guide and the following additional instructions for the water heater outlet connection: 1.
IMPORTANT WARNINGS ABOUT HOT WATER WARNING ABOUT HOT WATER - Heated water can be dangerous, especially for young children and the vulnerable. - Water temperatures above 50°C can cause severe burns instantly and may even result in death. - Those most at risk are children, disabled and elderly. - Hot water at 65°C can severely burn a child in less than half a second.At 50°C it takes five minutes. ALWAYS...
- Continuously variable wind resistance feature: when the chimney or the gas exhaustion is blocked, the built-in microcomputer system will detect and enhance the revolving speed of the fan to eliminate the noxious gas. When the revolving speed is up to the limited speed, the microcomputer system will send out an order to cut off gas and flame so as to protect the gas water heater.
3. INTRODUCTION - This manual provides information necessary for the installation, operation, and maintenance of the water heater. - The model description is listed on the name plate which is attached to the right side of the case of the water heater. (Please refer to p.12) - Please read all installation instructions completely before installing this product. - The Water Heater is an instantaneous water heater designed to efficiently supply endless hot water on demand.
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3.2 SAFETY GUIDELINES Ensure the following warnings and instructions are read and understood before commencing installation. WARNING - Installation and service must be performed by a licensed professional (for example, a licensed plumber). - The licensed professional is responsible for the correct installation of the water heater and for compliance with all relevant national, state and local regulations. - The water heater must be installed outdoors only. Do not install water heater indoors.
PROHIBITED - Do not store or use gasoline or other flammables, vapors, or liquids in the vicinity of this appliance. Vapors from flammable liquids will explode and catch fire causing death or severe burns. - Do not reverse the water and/or gas connections as this will damage the gas valves and can cause severe injury or death. Follow the diagram when installing your water heater (Please refer to p.8). - Do not use this appliance if any part has been in contact with or been immersed in water.
The water heater requires careful and correct installation to ensure safe and efficient operation. This manual must be followed. Please read the “SAFETY GUIDELINES” and the “IMPORTANTNOTES” sections at the beginning of this manual. 4.2 CONFIRM THE APPLIANCE SUITABILITY Check the gas type label and the name plate for the correct gas type, gas pressure, water pressure and electrical rating for your application. Do not install the unit if these requirements are not met.
4.3 SELECTING SUITABLE LOCATION FOR INSTALLATION Carefully read this section before installation and selecting the location for installing the water heater. The following precautions should be considered. WARNING - This is a water heating apparatus only and the delivered water quality is dependent upon the quality of water supplied to this system.
4.4 CLEARANCES FOR OUTDOOR HEATER LOCATIONS - Clearance in accordance with local installation codes and the requirements of the gas supplier. - A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. - Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor. - This water heater is strictly forbidden to be installed indoors and in the bathroom.
- The distance between the water heater and the surrounding wall, unit: mm.
4.5 WATER HEATER INSTALLATION ①. According to the requirements of the figure and the size of the water heater, mark the wall with a dash mark, then drill three holes with a diameter of ¢8mm and a depth of 60mm, respectively insert three M6×50mm expansion screws into the hole and tight the expansion screws with a wrench. ②. Hang up the water heater, screw on the M6nut, and fix the water heater to the wall; ③.
4.7 SIZING AND CONNECTION SUITABILITY - Check the gas type label to make sure that the unit was built for the type of gas you will be using, and that the gas inlet pressure is within the appropriate range.(Please refer to p.8.) - Gas pressure below this specified range for the water heater and/or insufficient gas volume will adversely affect performance.
4.9 WATER CONNECTIONS WATER OUTLET TEE VALVE FILTER AND DRAIN PLUG GATE OR BALL VALVE ON INLET PRESSURE RELIEF VALVE DRAIN PIPE HOT WATER OUTLET COLD WATER INLET - All pipes, pipe fittings, valves and other components, including soldering materials, must be suitable for potable water systems. - A manual shut off valve must be installed on the cold water inlet to the water heater between the main water supply line and the water heater.
4.10 PRESSURE RELIEF VALVE INSTALLATION AND ATTENTIONS Model Recommended pressure relief value / temperature GA26O 800kPa/99ºC (201ºF) WATER OUTLET TEE VALVE PRESSURE RELIEF VALVE DRAIN PIPE HOT WATER OUTLET - Please use Teflon tape or sealant to seal the thread of pressure relief valve, then install it into Tee valve G3/4 outlet (As shown above). - Please use Teflon tape or sealant to seal the thread of water outlet, then install pressure relief valve, tee valve and water outlet together.
4.11 WIRING DIAGRAM WARNING Do not reverse the hot outlet and cold supply line connections to the water heater as this will cause your heater to operate improperly. 4.12 ELECTRICAL CONNECTION - The water heater must be electrically grounded. Do not attach the ground wire to either the gas or water piping. - The water heater requires an AC 110V 60Hz. - The weather-proof power point should be no more than 1 meter from the base of the water heater for easy access.
4.13 HOT WATER HEATER AUTOMATIC DRAINAGE - The water heater has an automatic drainage function. When the water inlet pressure of the water heater exceeds 1.0MPa~1.2MPa, the water heater will automatically drain and relieve pressure. - Do not place objects around the water heater to avoid damage caused by water immersion when draining. The pressure relief valve is disassembled as shown below.
REMOTE CONTROLLER INSTALLATION REQUIREMENTS - The remote controllers are splash resistant, however should not be positioned where it can be splashed directly & should be appropriately sealed between the surface of the wall & controller. - The remote controller can be installed in the bathroom provided it is correctly installed. Remote controllers output temperature setting (70°C mode) - The remote controller is able to adjust the output temperature in the range of 95ºF to 158ºF in one degree increments. 5.
5.2 CONNECTION OF REMOTE CONTROLLER WIRING TO THE WATER HEATER ①.Turn off the power supply to the water heater. ②.Connect the first controller only and turn on the power supply to the water heater. ③.Turn off the first controller by pressing the on/off button (LED light will turn off). ④. Continue to connect any additional remote control wires to the remote terminals directly. ⑤.DO NOT jump or short-circuit wires otherwise the PCB may become damaged. ⑥. Return the front cover.
1. Once the above checks have been completed, please clean filter of any debris (refer to p.24). 2. Fully open the manual water control valve on the water supply line. 3. Open a hot water tap to verify that water is flowing to that tap. 4. Fully open the manual gas control valve installed. 5. Turn un the 110V 60Hz power supply to the water heater. 6. Now you are ready to enjoy hours of endless hot water.
7.1 NORMAL OPERATION WITH MULTIPLE REMOTE CONTROLLERS INSTALLED - Press the ON/OFF button. The Power light will become lit on the remote controller with setting temperature displayed on each of the remote controllers. The controller with priority function will have a flashing Power light. - Set the required temperature using the Cool & Heat Buttons. (The temperature setting can only be changed by the priority controller. Refer to p. 21 for detail regarding the PRIORITY function).
The water heater should be checked at least once a year or as necessary by a licensed technician. If repairs are needed, any repairs should be done by a licensed technician. The water heater’s lifetime may be extended by regular maintenance. WARNING - Turn off the electrical power supply and close the manual gas control valve and the manual water control valve before servicing. - Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
8.2 GENERAL TROUBLESHOOTING TEMPERATURE AND AMOUNT OF HOT WATER PROBLEM POSSIBLE SOLUTIONS The water is not hot enough. 1. Check cross plumbing between cold water lines and hot water lines. 2. Is the gas supply valve fully open? (p.14 ) 3. Is the gas line sized properly? (p. 8) 4. Is the gas supply pressure enough? (p. 8) 5. Is the set temperature set too low? (p. 2 0) The water is too hot. Is the set temperature set too high? The hot water is not available when a fixture is opened.
8.3 PCB ERROR CODES TROUBLESHOOTING： When the water heater fails, the display will display the fault code, while the buzzer will issue continuously "Beep" alarm sound, please follow the table to deal with accordingly. The error code will be displayed on the remote ERROR CODE E0 E1 FAULT DESCRIPTION AND HANDLING METHOD Water temperature probe fault. Flame fault, Please check whether the gas supply is normal or not, confirm the gas is correctly connect and then use. E2 False fire fault.
THE FOLLOWING CONDITIONS ARE NOT A FAULT PHENOMENON REASON AND HANDLING METHOD Outdoor temperature is too low, the exhausted smoke Exhaust white smoke. encountered in the cold air and then condensing into Flow rate of Hot water is too small to ignite the water heater, the water heater will turn generated hot water off in the situation, then water will become cold. So please do not turn the is too small to achieve hot water to be a white mist. too small. expected water temperature.
8.4 THE TEMPERATURE SETTING OF 70°C MODE 70ºC 50ºC 65ºC 45ºC 60ºC 40ºC 55ºC WARNING 1.Service Shall Be Carried Out Only By Authorized Personnel And The Appliance Shall Not Be Modified; 2.The Appliance Must Be Installed, Commissioned And Serviced By An Authorized Person In Accordance With The Requirements; 3.Warning: For Continued Safety Of This Appliance It Must Be Installed, Operated And Maintained In Accordance With The Manufacturer’S Instructions; 9.
Please feel free to contact us if you have any questions about our products, warranty service, or if you need assistance installing a unit. We also strive for continuous improvement, so we welcome your comments, feedback and suggestions. U.S.A +1 (855) 627-3955 PUERTO RICO (787) 727-0277 customerservice@marey.com www.Marey.
