GAS 16L 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 1. QUICK START GUIDE 04 2. PACKING LIST 05 3. IMPORTANT WARNINGS 05 4. FUNCTIONS AND FEATURES 06 5. INSTALLATION 08 6. OPERATING INSTRUCTIONS 13 7. INSTRUCTIONS FOR DAILY MAINTENANCE 14 8. CONSTRUCTION AND PART IDENTIFICATION 15 9. TECHNICAL PARAMETERS 16 10. TEMPERATURE INCREASE CHART 16 11.
1. QUICK START GUIDE WARNING Working with gas can be dangerous. If you are not familiar with local building codes and basic gas plumbing practices please employ a professional to install your water heater. POWER GAS MODEL 1- Securely mount your water heater to the wall in an appropriate location using the supplied hardware. 2- Install the venting (5” for 16L unit) per local building codes and the instructions supplied. 3- Connect the gas lines (all connections are ½”).
2. PACKING LIST 1. Water heater-Qty 1 2. Operating Instructions-Qty 1 3. Mounting Screws-4 Sets 3. IMPORTANT WARNINGS - You MUST install this water heater according to all directions and specifications contained in this manual. Failure to properly install the heater can result in property damage or severe injury or death by burning, explosion, or asphyxiation due to carbon monoxide. - You MUST check the exhaust flue for obstructions at the initial installation and at least annually thereafter.
- Do NOT install the water heater in a sealed room or in a room with poor air circulation. - You MUST install the exhaust pipe to properly discharge the exhaust gases. - Do NOT block the exhaust pipe or the air inlet at any time. This can cause incomplete combustion and can lead to gas poisoning. - When the water heater is in use, do NOT touch the body of the heater. Touch the knobs only, as the body of the heater can become very hot to the the touch.
4. Low water pressure start up function: This unit requires only 8 PSI to fire, making it suitable for users with low water pressure, or those who are using it to supply hot water to upper floors. Please note that the water flow and water pressure are not the same. Sufficient flow is always required to keep the overheat safety sensor from shutting the unit off. 5.
2. Don´t expose the water heater to the strong wind or rain. 3. Use only the type of gas that is specified on the name plate. 4. All gas connections should be made by a professional. 5. Don't use pipes, tubing or other connections that are aging or cracked. 6. Do not use with water pressures lower than 8 PSI. Do not use with lower GPM's than indicated on the flow chart for your unit. 7. The water heater shouldn't be installed above cooking appliances, such as ovens or stoves. 8.
c) Install the expansion bolt into the drilled hole. Hang the unit utilizing the screws supplied. 29" Washer Nut Expansion Screw Heater Case 8" Drawing 04 WATER SUPPLY Connect the cold water inlet supply. Note: Use white Teflon tape at all threaded water connections. - The cold water inlet joint is ½” NPT threaded pipe. - The water inlet should be connected by using flexible heavy duty tubing or rigid PVC pipe. If you choose flexible tubing, you will need a ½” threaded male to ½” hose barb adapter.
HOT WATER OUTLET - The hot water outlet joint is 1/2”NPT pipe thread. - The hot water outlet should be connected by flexible tubing or rigid PVC of the type intended for use with hot water. - The inner diameter of the water outlet pipe (including the valve) shouldn´t be less than 3/8”. Larger diameter pipe is acceptable as long as the appropriate adapters are used. - After connecting, fully open the cold water supply to confirm the flow of water and to check for leaks. Correct leaks as necessary.
This kind of damage will result in water running freely into the space where the water heater is located, with can cause flooding. If your water heater is installed in a geographic location that sees very low sustained temperatures, you MUST install a backflow preventer on your heater's vent pipe. This will ensure that cold air cannot fall down into the water heater and cause freezing damage.
- Attach the second 45 degree elbow on the other side of the wall, turning the angle upward to run parallel with the wall. Install the second piece of flute pipe into the elbow, parallel to the outside wall. Utilize galvanized steel brackets or clamps as necessary to secure the piping. Install the rain/wind cap on top of the second piece of exhaust pipe. - Install a condensation drain on the portion of pipe located outside the structure.
6. OPERATING INSTRUCTIONS - Open the hot water on a nearby faucet. Confirm proper water flow through the unit and out of the faucet. (You should hear a “clicking” sound from the unit-this is the ignitor activating). Turn the water back off. - Start the gas supply. Check again for gas leaks using soapy water and correct as necessary. - Open the hot water faucet. You should hear the ignition clicking, and hot water should begin flowing.
1. If a gas leak is detected at any time, close the main gas valve immediately. The Marey service center or your local gas company should be contacted for repair. 2. Before going to sleep or leaving the house, the gas supply should be shut off. 3. Do not block the exhaust pipe or the air inlet. This can cause incomplete combustion and lead to gas poisoning. 4. During operation, check the fire through the sight glass for normal combustion. Check for a compact, blue flame.
8. CONSTRUCTION AND PART IDENTIFICATION Follow this diagram for correctly connecting water and gas to the unit.
9. TECHNICAL PARAMETERS TECHNICAL SPECIFICATIONS GAS 16L Hot Water Outlet per Minute 16 LPM / 4.2 GPM Heat Loss 111,903 BTU/h Activation Flow Rate 10 PSI Maximmum Flow Rate 4.3 GPM Width x Height x Depth Weight 16,5" x 27,9" x 8,2" 29 lbs Gas Type Liquid Propane Gas or Natural Gas Related Gas Pressure (PSI) 0.25 up to 0.5 PSI (NG) & 0.4 (LPG) Exhaust Discharge Mode Flue Duct Type Aplicable Water Pressure 3.6 - 145.0 PSI / 0.
11.
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.
