WINTEMP WN27 Tankless Water Heater Electric Instruction Manual

WINTEMP WN27 Tankless Water Heater Electric

WARNINGS

• This is not a do-it-yourself project. Failure to have this appliance installed by a licensed plumber and electrician will void all warranties.
• Under no circumstances should you attempt to install, repair or disassemble the tankless electric water heater without first shutting off all power to the unit directly at the circuit breaker box.
• Installation of this product is restricted to indoor locations only by licensed plumbing or electrical contractors.

Important Safety Instructions

1. The installation must comply with the National Electrical Code and your local electrical and plumbing codes.
2. This appliance must be EARTHED.
3. All wiring and installation must be supervised by a qualified electrician.
4. CAUTION: This product has more than one power-supply connection point. Disconnect all power supplies before servicing (for models WN08, WN11, WN13, WN18, WN24, WN27 only).
5. This appliance is not intended for use by persons (including children) with reduced physical sensory or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
6. This appliance MUST be permanently connected to the fixed circuit breaker and it must be installed vertically. DO NOT install this appliance near to tinder or strong magnetic field place.
7. This appliance is forbidden to be switched on if you think it may be frozen, as this could result in serious damage to the unit. Wait until you are sure that it has completely thawed out before you switch it on.
8. Please feel the outlet hot water temperature with your hand to make sure it is suitable for showering before taking a shower to avoid getting scalded.
9. Before connecting pipes to the water heater hoses, it is extremely important to FLUSH the pipes to wash away all plumbing paste or residue in the pipes.
10. The heating chamber is treated with composite nano insulation material; it is natural if there might be a bit of smell or green-blue smoke when the unit is used for the first time.
11. If there is damage to the wire, you must contact a qualified electrician to replace it with a dedicated wire from our authorized dealers.
12. CAUTION: FOR HOUSEHOLD AND INDOOR USE ONLY
13. Risk of electric shock, CONNECT ONLY TO A CIRCUIT THAT IS PROTECTED BY A GROUND FAULT CIRCUITINTERRUPTER(GFCI).
14. Save this instruction.

Product Features

The tankless electric water heaters are incorporated with China’s national patent technology with multi-safety devices. Besides, the unit has the following features.

1. Tankless, instantaneous heating for on-demand hot water, No pre-heating. No stand-by heating loss. energy-saving.
2. Micro-computer control, Adopting patent heating technology. Water is completely separated from electricity by multi-layers of composite nano-insulation material.
3. Over temperature protection: when the outlet water temp. reaches over 167°F /75°C, the electricity will be cut off to avoid getting scalded and the screen displays E1. the appliance will start to work automatically while temp. drop to the set temperature.
4. Malfunction of sensor- when there is a malfunction with the inlet temperature sensor, the heater stops working and displays E3.
5. Malfunction of sensor- when there is a malfunction with the outlet temperature sensor, the heater stops working and displays E4.
6. Conversion between degrees Fahrenheit and degrees Celsius.

Electrical Diagram

WN18

WN24 & WN27

Technical Data

Note: suitable recognized strain relief means shall be provided when the product is installed.

Product Inner Structure

WN 18

WN24 & WN27

Installation Guideline

The installation must be in compliance with the National Electrical Code, your local electrical and plumbing codes.

1. Make sure the appliance is intact, and the fittings are complete.
2. Please make sure the main power supply, water pressure, grounding condition, ammeter and wire reach the standard of installation requirement.
3. The appliance must be connected to properly grounded dedicated branch circuits of proper voltage rating. Ground must be brought to the “ground” at the circuit breaker panel.
4. This appliance MUST be permanently connected to the fixed circuit breaker. If you don’t use the heater, please switch off the circuit breaker.
5. DO NOT install this appliance near to tinder or strong magnetic field place.
6. The unit must only be mounted in a VERTICAL position near by the water fittings. Please electrify try the machine after getting through waterway.

Installation Method

• Fixed installation on the wall
  • Locate an appropriate place on a section of wall as above mentioned.
  • Fig 1 → Front and back of the appliance.
  • Fig 2 → Remove screw which fixed the front case and back case.
  • Fig 3 → Open the front case, route power cord through power cord clamp inside water heater, connect the cable to the terminal blocks, please notice the guidance logo below the terminal blocks. WN18, will be connected to two circuit breakers, WN24, WN27 will be connected to three circuit breakers.
  • Fig 4 → Fix the front case on appliance, fix the power cord clamp and lock the bottom screw to fix the front case.
  • Fig 5 → Tear off the installation cardboard from user manual inner page, to make 2 marks for punching; then drill 2 holes with 6mm diameter, the distance between 2 hole is 89mm. and insert 2 expansion screw in the wall and put 4*25mm self-tapping screw into the expansion screw.
  • Fig 6 → Fix the appliance on the wall and put one 4*25mm self-tapping screw into the expansion screw pass though bottom hole to lock down the appliance.
  • Fig 7 → Connect the water pipe to the water inlet and water outlet connections, please remember to install the rubber seal ring.

Water connections

1. All water pipes must comply with national and applicable state and local water pipe codes.
2. The unit should be connected directly to the main water supply. Flush pipe with water to remove any debris or loose particles
3. It is required to use 3/4″ NPT water connections to fit the models of WN18, WN24, and WN27.
4. Please remember to install rubber seal rings at the connections. When all water connections are completed, check for leaks and take corrective action before proceeding.

Electrical connection

1. All electrical work must comply with national and applicable state and local electrical codes
2. All units must be connected to a properly grounded dedicated branch circuit of proper voltage rating.
3. WN18 require two independent circuits. Use two supply cables protected by two separate double pole breakers.
4. WN24, and WN27, require three independent circuits. Use three supply cables protected by three separate double pole breakers.
5. While feeding the cable to the terminal blocks, please make sure the metal wire ends and the terminal blocks touch completely. Then tighten the screws up to make sure the full current can go through.
6. Before beginning any work on the electric installation, be sure that the main breaker panel switch is OFF to avoid any danger of electric shock, all mounting and plumbing must be completed before proceeding with electrical hook-up.

Operation Instructions

1. Turn on the circuit breaker to bring electrical power to the unit.
2. Open water faucet for a few minutes until water flow is continuous and all air is purged from water pipes. The unite must be operate after the breakers are turned on.
3. After the unit is supplied with power, LED lights for 2 seconds, no other display, the appliance keeps standby.
4. Press  to turn ON/OFF the appliance. When the unit is ON, LED displays actual water temperature of the outlet. While the appliance stops working, after 30 seconds, the screen switch to the screen saver. the display screen light will be off. If there is touch to the screen, it will be light again.
5. Single touch “ + “and “-” to adjust the outlet temperature. Temperature setting range is 30-60°C/ 86-140°F.
   • If the unit has been paused, you may initially get a short burst of very hot water while you turn on again. Please run the water through for a few seconds to let the temperature settle down. Please check hot water with hand before you taking a shower.
   • If the unit will not be used in winter, drain out water completely so that the heater will not be frozen.
   • Please periodically clean inlet strainer and the shower to keep a free water flow.
6. In OFF mode, press °C/f for 5 seconds to convert the temperature display between Fahrenheit degree and Celsius degree.
7. In ON mode, press °C/f for 5 seconds to lock the operation panel, in locking state, the light of will keep on, then touch °C/f and hold for 5 seconds to unlock the operation panel, the light of & will be off.
8. In OFF mode, press ” +” for 5 seconds, appliance enter into WIFI stand-by mode, the WIFI indicator flashes quickly, and when WIFI connected successfully, the WIFI indicator will keep on.
9. There is an automatic memory function to avoid repetitive operation, while you turn on the appliance, the default set temp. with be the same as last time set.
10. Should only be performed by qualified electrician. The person who initially installed the unit is the best one to contact for help.

Troubleshooting

1. Inlet and outlet

fittings leaking

| A.      Fittings not tight

B.       Rubber washer worn-out

| A.      Tighten fittings.

B.       Change the rubber washer.

2. LED no signal| A.      Power not connected.

B.       LCD damaged.

| A.      Connect power to the unit.

B.       Change LCD.

3. Functional keys not working| A.      No water out from the shower.

B.       Water pressure too low.

C.      Key or PCB damaged.

| A.      Open the valve to get water.

B.       Open the valve to get pressure.

C.      Change key or PCB.

4. Water too hot| A.      Too high temperature set.

B.       Water flow is too small.

| A.       Set a lower temperature.

B.       Open valve bigger.

5. Water too cold| A.      Low temperature set.

B.       Water flow too much.

| A.       Set a higher temperature.

B.       Reduce water flow.

6. Outlet gets water

smaller and smaller.

| Inlet strainer or shower clogged.| Clean the strainer and shower.
7. LED displays E1| Outlet temp. is over 75″C/167’F| A.        Reduce the temperature

B.         Turn up the water flow

8. LED displays E3| Inlet temperature sensor failure| Please contact with your local

dealer

9. LED displays E4| Outlet temperature sensor failure| Please contact your local dealer
10. Display overload| The inlet water flow is too big.| Reduce the inlet water flow

Normal Maintenance

Note: Do not attempt to repair this water heater yourself. Call a service person for assistance. Always turn off of these operations the power supply needs to be shut off.
It does not require any regular maintenance. However, to ensure consistent water flow, it is recommended following maintenance.

1. periodically remove scale and dirt that may build up at the aerator of the faucet or in the shower head.
2. there is a built-in filter screen at the inlet connection which should be cleaned from time to time. Please turn off the water flow before doing this.

CONTACT

• To obtain the benefit of this warranty, please email support@wintempshop.com.
• We will address your issue as soon as possible!
• Our official website address is www.wintempshop.com.

Please read and follow the installation and operation instructions carefully, to ensure the long life and reliable operation of this appliance.

• Model No.
  • WN18
  • WN24
  • WN27

Keep this instruction manual in a safe place once your unit is installed. You may need to refer to it for general instructions or future maintenance.

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