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Summary of Contents for Marey GA30NG
- Page 1 GAS 30L NG/LP GAS GAS TANKLESS WATER HEATER INSTALLATION AND OPERATION 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.com PR (787) 727-0277...
- Page 2 WARNING: This unit should be installed by a certi ed professional in accordance with all local building and plumbing codes. Under no circumstances should you attempt to install, repair, or disassemble the Marey Gas Powered water heater without rst shutting off any gas supplied to the unit.
- Page 3 INDEX INTRODUCTION AND SAFETY WARNINGS INTRODUCTION IMPORTANT SAFETY INSTRUCTIONS SAFETY WARNINGS OPERATION OPERATING INSTRUCTIONS EXTENDED SHUTDOWN COLD WEATHER WARNINGS TROUBLESHOOTING DIAGNOSTIC CODES INSTALLATION INSTALLATION GUIDELINES PACKING LIST LOCATION AND CLEARANCE REQUIREMENTS ELECTRICAL GAS PIPING AIR INTAKE AND EXHAUST (VENT) SYSTEM START UP AND TESTING REFERENCE WIRING DIAGRAMS...
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Page 4: Introduction And Safety Warnings
IMPORTANT: KEEP THIS MANUAL FOR FUTURE REFERENCE! 1.1 INTRODUCTION Thank you for purchasing this Marey tankless water heater. In order to ensure proper installation, safe operation, and long life, please carefully read these instructions. Installation should only be completed by licensed professionals. The use of professionals ensures the installation is in full compliance with all required building, plumbing and electrical codes. -
Page 5: Safety Warnings
1.3 SAFETY WARNINGS DO NOT use a fuel gas that is not listed on the nameplate as compatible with the water heater. Abnormal combustion or a de agration may occur which can cause a serious accident. DO NOT use the unit if the vent piping has been damaged or altered in any way including cracking, separation, rusting, melting, etc. -
Page 6: Description Of Operation
·Any alterations to the appliance will void the warranty unless instructed by a Marey technical support representative with an original spare part supplied by Marey. -
Page 7: For Your Safety Read Before Operating
Multiple protective functions are included such as no-load heating prevention, automatic shutdown in case of accidental ameout, automatic pressure relief, etc. to make the appliance both safe and reliable 2.1 OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING : If you do not follow these instructions exactly, a re or explosion may result causing property damage, personal injury or loss of life. -
Page 8: To Turn Off Gas To Appliance
TO TURN OFF GAS TO APPLIANCE 1. Shut down the water heater by pressing the “ON/OFF” button. 2. Close the fuel gas valve. 3. Unplug the power cord 4. Use dry hands. Exercise caution and only unplug by grasping the plug head and pulling. Note, all factory settings will be restored next time the unit is turned on. -
Page 9: Control Panel Indications
CONTROL PANEL INDICATIONS LED display 1. Power on press the POWER key, the water heater is in the startup state. At this time, the temperature display displays the current set temperature, the temperature setting range is 35ºC~ 60 ºC(95F-140F), and the factory default setting temperature is 42ºC. 2. -
Page 10: Power Outage
Mode selection button: the user can select and set the current mode through the mode selection button. With each click, the water heater exits the current mode and enters into the next working mode. POWER key: used to control the shutdown / standby / fault reset and other working states of the water heater. - Page 11 The heater and water within the unit may be very hot. Allow time for the system to cool and use caution when draining to minimize risk of injury. 1.Shut down the water heater by pressing the “ON/OFF” button. 2. Close the fuel gas valve (1). 3.
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Page 12: Cold Weather Warnings
2.3 COLD WEATHER WARNINGS FREEZING DAMAGE POTENTIAL AND PRECAUTIONS Freezing temperatures can damage the water heater and/or water piping. Freezing water expands rapidly and can create tremendous mechanical forces. Mechanical damage and pipe ruptures can result from only brief exposure to freezing temperatures. For best results, completely shut down the system by following the Extended Outage Proce- dure section of this manual. -
Page 13: Maintenance And Inspection
Use caution when working in the area around the heater. To keep your water heater operating optimally please refer to the below recommended inspection and maintenance checklists. Marey recommends a periodic inspection performed by a quali ed service technician. An annual inspection is normally suf cient. Frequent visual inspections by the owner are recommended. -
Page 14: Maintenance Procedures
MAINTENANCE PROCEDURES BURNER INSPECTION AND CLEANING 1. The burner must ame evenly over the entire surface of the burner head when operating correctly. 2. The ame should burn with a clear, blue, stable ame. 3. Presence of a yellow ame or of black deposits on the burner head indicates cleaning and/or burner replacement should occur. -
Page 15: Troubleshooting
For operating dif culties with your unit, please consult he following table for guidance. If you need further assistance, call Marey toll free service and support line at 1-855-627-3955. Please have product information ready when you call including serial number, date of purchase and error code if shown on the control panel. - Page 16 Issue Possible Cause Solu�on Power outage Unit requires 120V power. Use unit when power is restored. Check circuit breaker and reset if needed. No power: Power Check ground fault circuit interrupter (GFCI) indicator lamp is not lit if circuit includes one and reset if necessary. Unit is unplugged Check power plug and ensure properly plugged.
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Page 17: Diagnostic Codes
If hot water going to a tub is combined with cold water, the volume computed would not be representa�ve of the total amount that may have been dispensed. Consult Marey or contact an authorized service Unresolved problem Other assistance required professional. - Page 18 Contact a qualified service technician Dry burning(over temperature) Temperature higher than 85℃ has been detected. protec�on Check the water pressure, water pressure too low. Contact Marey technical support. Inlet water temperature sensor Contact Marey technical support. failure Fan failure Contact Marey technical support.
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Page 19: Installation
National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1 shall prevail. Maximum and minimum inlet gas pressure: INLET GAS PRESSURE MODELS MAX. MIN. GA30NG 10.5’’wc (2.5kPa) 3.5’’wc (870Pa) GA30LP 13.0’’wc (3.23kPa) 8.0’’wc (1.99kPa) -
Page 20: Packing List
Contact the water supplier or local plumbing inspector on how to control this situation. 3.2 PACKING LIST The following contents are included. If any items are missing contact Marey toll free support line: 1-855-627-3955. Item Item# Quan�ty... -
Page 21: Location And Clearance Requirements
3.3 LOCATION AND CLEARANCE REQUIREMENTS GA30LP / GA30NG CLEARANCE REQUIRED TYPICAL INSTALLATION LOCATION Choose a location for unit installation taking into account the following guidelines. • Unit must be installed indoors. Installation is not recommended in bathrooms, bedrooms or occupied rooms that are normally kept closed. - Page 22 MOUNTING The heater MUST be installed in a vertical position with fuel gas inlet at the bottom and exhaust vent positioned at the top. Installation in any other orientation will result in damage and will void warranty. 1. Identify a suitable location per the “Location and Clearance Guidelines”. Ensure that the heater will be attached in a manner that is suf cient to support the weight of the heater in operation.
- Page 23 Figure 1.
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Page 24: Gas Piping
1. Check the fuel gas type before installation. DO NOT connect a unit if the gas type is not compatible. Contact Marey for the proper unit to match the gas type. 2. Check the gas inlet pressure immediately upstream at a location provided by the gas company. -
Page 25: Water Piping
WATER PIPING 1. All piping, including soldering material, and components connected to this heater shall be approved for use in potable water systems. 2. If the heater has ever been previously used for heating non-potable water, never install the heater later into a potable water system. 3. - Page 26 INTAKE AND VENT PIPE INSTALLATION SPECIFICATIONS · This tankless water heater is a Category III Water Heate. · For best results always minimize the length of the vent system. Keep the vent pipe routing as short and straight as possible. ·...
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Page 27: Terminal Clearances
This can create a situation where freezing might occur within the heater. Please consult a professional for a properly designed venting solution or contact Marey. TERMINAL CLEARANCES For water heaters other than for recreational vehicle installation, the following is information on... - Page 28 Clearance Descrip�on US Installa�ons (1) Canadia Installa�ons Clearance above grade, veranda, porch, 12 in (30 cm) 12 in (30 cm) deck, or balcony Clearance to window or door that may 12 in (30 cm) 36 in (91 cm) be opened Clearance to permanently closed window Ver�cal clearance to ven�lated soffit...
- Page 29 NON-DIRECT VENTING (SINGLE PIPE) Figure 2-B Other than direct vent terminal clearances Clearance Descrip�on US Installa�ons (1) Canadia Installa�ons Clearance above grade, veranda, porch, 12 in (30 cm) 12 in (30 cm) deck, or balcony Clearance to window or door that may 4 �...
- Page 30 assembly Clearance to service regulator vent 3 � (91 cm) outlet Clearance to non-mechanical air supply 4 � (1.2 m) below 36 in (91 cm) inlet to building or the combus�on air or to side of inlet to any other appliance opening;...
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Page 31: Horizontal Terminations
TERMINATION DETAILS Install the correct venting for your model according to the venting manufacturer’s instructions and the guidelines. Refer to the manufacturer’s technical literature for speci c part numbers and instructions. 1. Determine the number of elbows of 90 degrees that will be used in the evacuation system (two elbows of 45 degrees being considered as a single elbow of 90 degrees) 2. - Page 32 ACCEPTABLE VENT PRODUCTS: Manufacturer Listed and tested Telephone Contact vent products sales@z-flex.com Z-Flex 2SVSRCF04 800-654-5600 888-889-3539 www.novaflex.com APPROVED VENT PRODUCTS FOR DIRECT VENT: Manufacturer Part number Part descrip�on diagram Z-Flex 2SVEPWC(F)(03-05) 3in. 4in. twin pipe Z-Flex Z-Vent Single wall 45°Elbow Z-Flex Z-Vent Single wall 90°Elbow...
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Page 33: Start Up And Testing
IV appliances cannot be located above public walkways or other areas where 3.7 START UP AND TESTING condensate or vapor can cause a nuisance or hazard WARNING: If the information in these instructions is not followed Clearance under veranda, porch, deck,or 12 in (30 cm) exactly, a re or explosion may result causing property damage, balcony... - Page 34 16. If the heater will not operate, follow the shut down instructions. Wait 5 minutes and attempt to repeat this start up procedure. 17. If system does not operate, begin troubleshooting per “Trouble Shooting” section of this manual. Contact Marey. RELIEF VALVE INSTALL For safe operation of the water heater, be sure that: •...
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Page 35: Wiring Diagrams
4. REFERENCE 4.1 WIRING DIAGRAMS Figure 1. - Wiring diagram... -
Page 36: System Specification
4.2 SYSTEM SPECIFICATION Model No GA30LP / GA30NG Gas-fired instantaneous tankless Type of Appliance water heaters mounted in Kitchen, bathroom, Opera�on etc. Flue System Forced Draught Flue Available default Temperatures Factory se�ng 107℉ Within 35℃～ 60℃（95℉～140 Temperature Range ℉） Width... - Page 37 4.3 DIMENSIONS...
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Page 38: Names Of Major Parts And Components
4.4 NAMES OF MAJOR PARTS AND COMPONENTS... -
Page 39: Parts And Components
Nº CODE QTY. PARTS AND COMPONENTS Q60.LU.2-0 Back panel G60.LE.2-6 Back panel ST10.60-0(G60-LE) Smoke hood ST05.102(G60-LE) Heat exchanger ST01.143-0(G60-LE) Burner ST14-56(Q52-LE) ST18.3-0(Q52-LE) Water inlet connector ST03.10-0(G60-LE) Water propor�onal valve assembly ST04.31-0(Q52-LE) Gas control assembly Gas inlet connector ST18.4-1(Q52-LE) Power supply ST15.155-0(Q52-LE) ST15.154B-0(G60-LE) Igni�on controller... -
Page 40: Spare Parts
4.5 SPARE PARTS The following spare parts are available for purchase and maybe replaced by a licensed professional. Please contact Marey. Nº CODE PARTS AND COMPONENTS Q60.LU.2-0 Back panel G60.LE.2-6 Back panel ST10.60-0(G60-LE) Smoke hood ST05.102(G60-LE) Heat exchanger ST01.143-0(G60-LE) Burner ST14-56(Q52-LE) ST18.3-0(Q52-LE) -
Page 41: Limited Warranty
Make sure to read this manual thoroughly and review the installation drawings. In the event the heat exchanger and components are, at Marey’s determination, found to be defective in material or workmanship within the warranty period listed, Marey will furnish... - Page 42 Manufacturer shall not be liable under this warranty and this warranty shall be void if ANY the following events occur: a. The water heater is not installed by a licensed plumber, licensed gas installer, or licensed contractor, or b. The water heater or any of its component parts have been subjected to misuse, misapplication, improper sizing, alteration, neglect or accident, or c.
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Page 43: Puerto Rico
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.com...
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