TANKLESS GAS WATER HEATER Installation and Usage Procedure

Before manually operating the relief valve, make certain no one will be exposed to the dangerof the hot water released by the valve. The water may be hot enough to create a scald hazardThe water should be released into a suitable drain to prevent injury or property damageFailure to perform the recommended Routine Preventive Maintenance can harm the properoperation of this water heater, which can cause carbon monoxide dangers, excessive hot watertemperatures, and other potentially hazardous conditions.

• Water temperatures over 125° F(52° C) can cause severe burns or scaldingresulting in death.
  
• Hot water can cause first degree burns with exposure for as little as:
  3 seconds at 140°F(60°C)
• 20 seconds at 130°F(54°C)
• 8 minutes at 120°F(49°C)
• Children, disabled, or elderly are at highest risk of being scalded.
• Feel water before bathing or showering.

DANGERS:
This water heater must only be used with the following water supply system conditions:With clean, potable water free of corrosive chemicals, sand, dirt, or other contaminants.- With inlet water temperatures above 32°F (0°C), but not exceeding 120°F (49°C).- DO NOT reverse the hot and cold water connections. The water heater will not operate.

WARNINGS:
IMPORTANT: DO NOT apply heat to the HOT or COLD water connections. If sweat connectionsare used, sweat tubing to adapter before fitting adapter to the water connections on heater. Anyheat applied to the water supply fittings will permanently damage the internal componentsof the water heater.

ATTENTION: "Only for use with Propane gas or Natural Gas"(Please refer tothe product label or the model number you purchased for the specific gassource to be used.)This product generates odourless carbon monoxide. It is fitted with a horizontal exhaust pipefor quick installation. It must not be installed in bathrooms, as use in such locations poses asafety hazard (the water heater consumes oxygen during operation). Installation is permittedonly on balconies or in well-ventilated spaces, as combustion depletes indoor oxygen levels.The water heater should be kept away from flammable materials. *In the event of a leak,immediately shut off the gas supply.

WARNING: If the information in these instructions is not followed exactly, a fire or explosionmay result causing property damage, personal injury or death.

1.Safety Information

• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this orany other appliance.
  
• WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone.
  Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.·
• Installation and service must be performed by a qualified installer service agency or thegas supplier.
•  Keep young children away from the appliance when in use.
• Maintain proper maintenance space when installing equipment.So that it can beeasilyconnected or removed.
• The water heater must be installed in a place where it can be used at any timewith asuitable amount of flammable air. The indoor water heater can be directlyventilated.
• The electrical connection requires disconnecting the unit for maintenance and safety to turnoff the power to the water heater.
• Do not install the unit where the exhaust vents point to any openings in the building orwhere noise may disturb the neighbors.Ensure that the vent terminalmeets the requireddistance from any door or opening by local regulations to preventexhaust gases fromentering the building.
• Carefully select the installation location of the water heater, lint and fine powderContaminants such as flour can block the air intake and reduce fan operation. This inturn,can lead to burning anomalies and shorten the life of the water heater.Regularly ensure thatthe area around the water heater the air inlet are free of dust.debris and other contaminants.
• Water temperatures above 125 F(52°C) can cause severe burns or burns.The factory watertemperature is set at 107 F(42 °C) to minimize the risk of burns.Always check the watertemperature before taking a shower or shower.
• Do not use this product if it is immersed in water.
• In the event of a burn back, where the flame burns back to the jets, immediately turn off thegas supply at the control valve on the front panel, After ensuring the flames are extinguished,re-light the appliance in the normal manner. Should the appliance again burn back, close thecontrol valve and call a service technician to examine the appliance.
•  Do not use theappliance again until the service technician has declared it is safe to do so.·Do not use this appliance if it is leaking gas (see notes below on how to check for a gasleak).

If there is an apparent gas leak, (smell of gas) close the control valve on the appliance.Make sure that there no naked flames within 5 meters of the appliance and check for leaksas described below.
Never check for leaks with a naked flame as this is extremely dangerous.

• To check for a gas leak, use a brush dipped in a soapy water solution (e.g. water withdishwashing liquid added) and apply the solution to alljoints in the system. If there is a leak,turn off the gas supply at the isolation valve which the installer will provide as part of theinstallation. Call a service technician to examine the appliance and do not use the applianceuntil the service technician has declared it s safe to do so. Should you suspect a leak at thecylinder connections (outside the house) apply the soapy water solution to the visible jointssuch as where the regulator fits into the cylinder or where the regulator fits into the flexiblehose, or the joints on the manifold if fitted. If there is a leak a bubble or bubbles will form. Ifyou are unable to stop the leak at this point, turn off the cylinder valve or valves and call aservice technician to correct the fault. As with leaks inside the premises do not use the appliance until the service technician has declared that it is sate to do so.
• Ensure that the appliance is used away from flammable materials. Ensure that thesurrounding area is clear of flammable materials for a minimum of 1 metre all round theappliance.
• This appliance is fitted with a mains powered auto ignition device. Ensure the plug isconnected and the wall switch is on.
  
• Check that the gas is turned on at the cylinder valve. Open the water valve (See Fig 6) andcheck that the water flowing from the outlet pipe or nozzle. This will automatically ignite theburners.
• Changing the position of the water flow valve knob will reduce or increase the water flowand the water temperature. The slower the water runs the hotter it will be. Conversely thefaster the water runs the colder the water temperature will be.
• To increase the water flow, turn the knob in an anticlockwise direction and clockwise to reduce the flow.
  
• Once you have set the water flow to the required level it is possible to increase anddecrease the gas flow being supplied to the burners and will increase or reduce the watertemperature for any given water flow setting.

When in use or immediately after use do not touch the water heater, apart from the burneror water control knobs. Be aware that the area around the observation window becomesextremely hot.
2.Installation instructions
2.1 A hot water tap is turned on.
2.2 Water enters the heater.
2.3 The water flow sensor detects the water flow.
2.4 The computer initiates the fan motor and sends a signal to the igniter to create anignition spark.
2.5 The gas ignites and flames appear within the burner chamber.2.6 Water circulates through the heat exchanger and then gets hot.2.7 Using thermistors to measure temperatures throughout the water heater, the computermodulates the gas and water valves to ensure proper output water temperature.2.8 When the tap is turned off, the unit shuts down.2.9 When ignition occurs, if the outlet water temperature exceeds 185°F (85°C), the waterheater will cease operation.
2.10 This equipment is designed as a Class B product and may be installed either indoors(in a well-ventilated space, not in an enclosed space or bathroom) or outdoors.
2.11 Mount the appliance against a non-flammable wall. See Fig.2 for drilling positions ofmounting holes.
2.12 Position the appliance so that the height of the observation window in at eye level(approximately 1.55 to 1.65 Meters above ground level).
2.13 Mark out the wall to ensure correct mounting height before drilling the mounting holes.2.12 Position the appliance so that the height of the observation window in at eye level(approximately 1.55 to 1.65 Meters above ground level).
2.13 Mark out the wall to ensure correct mounting height before drilling the mounting holes
2.14 See Fig.4 and 1 for water and gas connection details,See Fig.7 for internal items list.
2.15 This appliance must be connected to a flue exhaust to the outside. See Fig.3

3. Initial start up
3.1 Ensure unit is unplugged and all electric power to the appliance is off.3.2 Locate the manual gas valve to the heater. Open the manual gas valve for 15-30seconds.
3.3 Carefully check for any sign or smell of gas. If gas is detected, wait for 5 minutes for it toclear. STOP and go no further until gas leak point is detected. If no gas is detected, open themanual gas valve for 5 minutes and again check area for signs of gas. At any sign of gas,STOP and go no further. Follow the safety precautions.
3.4 If no gas is detected open the water supply valve to the unit. Inspect for any leaks.
3.5 Visually inspect air intake inlet and exhaust piping to ensure they are not obstructed.
3.6 Press the "ON/OFF" button to turn the unit on.
3.7 Adjust the temperature set point.
3.8 This appliance is equipped with an ignition device that will automatically light the burner.
Do not try to light the burner by hand.
3.9 Open a hot water tap to a flow above the minimum flow point (3l/min).
3.10 The burner control system will fire the ignitor, the burner will light and hot water will beproduced. If the burner doesn't light, follow the shut down instructions. Wait 5 minutes andrepeat the start up procedure.
3.11 If again the burner doesn't ignite, begin troubleshooting per "Troubleshooting" section ofthis manual. Also see the table of diagnostic error codes

Important Tips:
1.To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINETEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will"caught on fire "with improper operation. Always check gas leakage before operation.

2.The water heater with low water pressure operating range of 3.62~120.0 PSl,When thewater pressure is below 3.62PSl, the machine will not work

3.When you feel the water flow is hot and cold, because the water pressure is not stable, sothe water pressure needs to be stable
Installation Precautions:
4. Connect the water inlet, the size of the joint of the water inlet is: NPT 1/2
5. Turn on the water inlet on-off, turn on the propane tank on-off, turn on the shower headon-off, you will hear the Water Heater (tick, tick, tick sound), turn on the Water Heater, thescreen will light up, and the temperature will slow down. Slow rise, when the watertemperature reaches 185°F, the Water Heater will automatically stop workingPackage Content:
1 x Tankless Water Heater1 xSmoke Exhaust Pipe
1 xlnstallation Hardware Packs

Water Heater Venting Safety

• DANGER:
• Failure to install and properly vent the water heater to the outdoors as outlined in the"Venting"section of the Installation Instructions in this manual will result in death from fire,explosion, or asphyxiation from carbon monoxide. NEVER operate this water heater unlessit is properly vented and has an adequate air supply for proper operation
• Please ensure that the vent terminal, air intake and coaxial flue system on the water heaterare correctly installed during initial start-up, and that they are inspected at least onceannually thereafter.
• WARNINGS:
• Gasoline and other flammable liquids, materials, and vapors (including paint thinners,solvents,and adhesives) are extremely dangerous. DO NOT handle, use, or store gasolineor other flammable or combustible materials anywhere in the vicinity of a water heater orany other appliance. Be sure to read and follow the labels on the water heater, as well asthe warnings printed in this manual. Failure to do so can result in death, bodily injury, orproperty damage.
• Combustible structures refer to adjacent walls and ceilings; do not confuse these withcombustibleor flammable products and materials. Never store combustible materials(such as clothing, cleaningproducts, or flammable liquids) near this appliance or anygas-fired appliances. Failure to complymay cause fire or explosion, resulting in death,personal injury, and/or product damage.
• Follow vent manufacturer's instructions for venting installation, including additionalclearances rom combustibles, to avoid conditions that can lead to death, personal injury,and/or property damage.
• Use tankless water heater manufacturerapproved Category IIl Stainless Steel vent materialonly.No other vent material is permitted.
• Moisture in the flue gas will condense as it leaves the vent terminal. In cold weather thiscondensate can freeze on the exterior wall, under the eaves, and on surrounding objects.Some discolorationto the exterior of the building is to be expected. However, improperlocation or installation canresult in severe damage to the structure or exterior finish of thebuilding.Use tankless water heater manufacturerapproved Category IIl Stainless Steel vent materialonly.No other vent material is permitted.Moisture in the flue gas will condense as it leaves the vent terminal. In cold weather thiscondensate can freeze on the exterior wall, under the eaves, and on surrounding objects.Some discolorationto the exterior of the building is to be expected. However, improperlocation or installation canresult in severe damage to the structure or exterior finish of the building.

Vapors from flammableliquids will explode andcatch fire causing death orsevere burns
Do not use or store flammableproducts such as gasoline,solvents or adhesives in thesame room or area near thewater heater.
Keep flammable products:
1.far away from heater,
2. in approved containers,
3. tightly closed and
4. out of children's reach.
Installation
Do not install water heaterwhere flammable products will bestored or used unless the mainburner flame is at least
Water heater has a main burner flame.The main burner flame:
1.which can come on at any time and2.will ignite flammable vapors.
Vapors:1.cannot be seen,
2. are heavier than air,
3.go a long way on the floor and4.can be carried from other rooms tothe main burner flame by air currents.
18" above the floor.This willreduce, but not eliminate, therisk of vapors being ignitedby the main burner flame.
Read and follow water heater warnings and instructions. Ifowners manual is missing, contact the retailer or manufacturer.