1. DL manuals
  2. Leda
  3. Water Heater
  4. LCL20
  5. Installation And Owner's Manual

Leda LCL20 Installation And Owner's Manual

Summary of LCL20

  • Page 1

    Gas water heaters installation and owner manual models lcn20/lcl20, lcn26/lcl26 - for external installation only.

  • Page 2: Important

    2 contents important ・・・・・・・・・・・・・・・・・・・・・ for the installer・・・・・・・・・・・・・・・・・ for the servicer・・・・・・・・・・・・・・・・・ for the plumber・・・・・・・・・・・・・・・・・ specifications ・・・・・・・・・・・・・・・・・・ introduction ・・・・・・・・・・・・・・・・・・・ dimensions and connection points・・・・・・・ safety guidelines ・・・・・・・・・・・・・・・・ installation ...

  • Page 3

    3 for the plumber please note this water heater is supplied factory set at 70℃ outlet hot water temperature. This water heater does require a tempering valve to be installed to comply with as3498 / 50c requirement. Please follow all the installation instructions in the installation and operating ins...

  • Page 4

    4 introduction this manual provides information necessary for the installation, operation, and maintenance of the water heater. The model description is listed on the rating plate which is attached to the right side of the case of the water heater. (please refer to p.7) please read all installation ...

  • Page 5: Accessories

    5 g a s c o l d ho t g a s h o t c o l d 1 3 3 1 2 4 4 7 g a s 3 3 0 3 5 0 5 2 0 4 9 0 3 7 1 9 8 6 0 9 4 3 3 5 7 9 1 9 4 1 h o t 4 9 c o l d 1 7 0 1 5 .7 5 4 2 1 3 7 3 1 p o w e r p o w e r 4 6 : c o l d 8 6 : g a s 1 1 4 : h o t 1 2 4 : p o w e r 3 4 accessories check that the installation manual a...

  • Page 6: @@@@@@@@@@@

    6 safety guidelines ensure the following safety instructions are read and understood before commencing installation. General 1. Carefully plan where you intend to install the water heater. Please ensure: the water heater will have enough combustible air and proper ventilation. Locate the water heate...

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    7 installation the water heater requires careful and correct installation to ensure safe and efficient operation. This manual must be followed exactly. Read the “safety guidelines” and the “important” sections at the beginning of this manual. Confirm the appliance suitability check the gas type labe...

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    8 about selecting a installation location carefully read this section before installing, and when you select the location for install the water heater, you must follow these precautions exactly. You check the proximity of gas & electrical lines so as not to create a hazard and avoid access problems ...

  • Page 9

    9 clearances for outdoor heater locations – as5601 *exemption from prescribe statutory requirements referred to in figure 1 has been granted to allow multiple series of the water heaters to be positioned side by side..

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    10 gas connections sizing and connecting 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.3.) 1. Gas pressure below this specified range for the water heater and/or...

  • Page 11

    11 measuring inlet gas pressure and testing gas leakgae the appliance and its gas connections must be measured inlet gas pressure and leak tested before placing the unit in operation for properly performing and safety. This is only to be done by a licensed professional. 1. Shut off the manual gas va...

  • Page 12

    12 water connections 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. Only a...

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    13 electrical connections 1. The water heater must be electrically grounded. Do not attach the ground wire to either the gas or water piping. 2. The water heater requires an ac 240v 50hz electrical power supply and draws a current of 0.8a. 3. The weather-proof power point should be no more than 1 me...

  • Page 14

    14 remote controller (optional) the water heater can be installed with up to three remote controllers. Each remote controller has two functions which can adjust the set temperature and indicate the error code on the remote controller. The set temperature can be adjusted only by remote controller whi...

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    15 remote controller installation 1. Crimp the fork terminals to the wires. ・ minimum 18awg wire (no polarity) ・ maximum 100m long 2. Attach the fork terminal to the connector base of the backside unit with two screws tight. 3. Put out wiring downward through the cable trench. 4. Attach the remote c...

  • Page 16

    16 connection of remote controller wiring to the water heater 1. Turn off the power supply to the water heater. 2. Remove the front cover from the water heater. There are 3 screws on the front cover. 3. Put the remote wires through the hole on the bottom of the unit's casing. 4. Remove the plastic c...

  • Page 17

    17 initial operation check the gas and water connections for leaks before firing it for the first time. Open the main gas supply valve to the unit using only your hand to avoid any spark. Never use tools. If the knob will not turn by hand, do not try to force it; call a qualified service technician....

  • Page 18: Normal Operation

    18 normal operation flow rate to activate the water heater : 3.0 litter per minute flow rate to keep the water heater running : 2.5 litter per minute without remote controller 1. Open a hot water tap. 2. Mix cold water with the hot to get the correct temperature water. 3. Close the hot water tap. No...

  • Page 19: @@@@@@@@@@@

    19 nomal operation with multiple remote controller installed 1. Press the on/off button. Then ensure the priority lamp is lit on the remote controller and the set temperature is displayed on the each remote controller. 2. Set temperature which you need. (the temperature setting can be changed by onl...

  • Page 20: @@@@@@@@@@@

    20 freeze prevention this unit comes equipped with heaters that discourage the unit from freezing. For this freeze prevention system to operate there has to be electrical power to the unit. The freeze prevention devices will not work if the electrical power source is disconnected. The unit has been ...

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    21 maintenance and service 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 frequency maintenance. Clean the cold-water inlet fi...

  • Page 22: General Troubleshooting

    22 general troubleshooting ~ temperature and amount of hot water ~ problem possible solutions it takes long time to get hot water at the fixtures. The time it takes to deliver hot water from the water heater to your fixtures depends on the length of piping between the two. The longer the distance or...

  • Page 23: ~ Water Heater ~

    23 ~ water heater ~ problem possible solutions unit does not ignite when water goes through the unit. Is the flow rate over 3.0l/min? (p. 18) check for the filter on cold water inlet. (p. 21) check for reverse connection and cross connection. If you use the remote controller, is the power button tur...

  • Page 24

    24 1 2 3 4 5 6 7 8 pcb error codes the water heater is self diagnostic for safety and convenience when troubleshooting. If there is a problem with the installation or the unit, it will display a numerical error code on the remote controller or blink the led on the pcb. Consult the following chart fo...

  • Page 25

    25 wiring diagram note: only change black color switches. Don't touch the other switches. I g elect rod w y b l o r f m remote controller 6 5 4 3 2 1 flow adjust ment valve 34 7 7 o f f p p 7 8 inlet thermistor mixing thermistor burning led gas propor- tional valve flame rod ground air-fuel ratio ro...

  • Page 26

    26 operating safety for your safety read before operating warning: if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This water heater does not have a pilot. It is equipped with an ignition device that automat...

  • Page 27: Danger

    27 danger vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater. Keep flammable products: 1. Far away from heater. 2. In approved container...

  • Page 28

    28 water flow and water temperature the flow rate through the water heater is limited to a maximum of 26.0 (or 20.0) l/min. The temperature setting, along with the supply temperature of the water will determine the flow rate output of the unit. Please refer to the temperature vs. Litre per minute ch...