Leda LCN20 Montageanleitung

Gas Water Heaters

Installation and Owner Manual

MODELS LCN20/LCL20, LCN26/LCL26 - FOR EXTERNAL INSTALLATION ONLY

CONTENTS

IMPORTANT・・・・・・・・・・・・・・・・・・・・・

FOR THE INSTALLER・・・・・・・・・・・・・・・・

・

FOR THE SERVICER・・・・・・・・・・・・・・・・・

FOR THE PLUMBER・・・・・・・・・・・・・・・・・

SPECIFICATIONS・・・・・・・・・・・・・・・・・・

INTRODUCTION・・・・・・・・・・・・・・・・・・・

DIMENSIONS AND CONNECTION POINTS・・・・・・・

SAFETY GUIDELINES・・・・・・・・・・・・・・・・

INSTALLATION・・・・・・・・・・・・・・・・・・・

CONFIRM THE APPLIANCE SUITABILITY・・・・・・・・

ABOUT SELECTING

A INSTALLATION LOCATION・・・・・・・・・・・・

CLEARANCES FOR OUTDOOR

HEATER LOCATIONS – AS5601・・・・・・・・・・・

GAS CONNECTIONS・・・・・・・・・・・・・・・・

SIZING AND CONNECTING・・・・・・・・・・・・・・

MEASURING INLET GAS PRESSURE

AND TESTING GAS LEAKGAE・・・・・・・・・・・

WATER CONNECTIONS・・・・・・・・・・・・・・・

ELECTRICAL CONNECTIONS・・・・・・・・・・・・

REMOTE CONTROLLER・・・・・・・・・・・・

・・・

REMOTE CONTROLLER INSTALLATION・・・・・・・・

・

CONNECTION OF REMOTE CONTROLLER

WIRING TO THE WATER HEATER・・・・・・・・・・

・

INITIAL OPERATION・・・・・・・・・・・・・・・

NOMAL OPERATION・・・・・・・・・・・・・・・

WITHOUT REMOTE CONTROLLER・・・・・・・・・

WITH ONLY MAIN

REMOTE CONTROLLER・・・・・・・・・・・・

WITH MULTIPLE REMOTE CONTROLLRE・・・・・・

FREEZE PREVENTION・・・・・・・・・・・・・・

WINTER SHUTDOWN・・・・・・・・・・・・・・・

MAINTENANCE AND SERVICE・・・・・・・・・・

UNIT DRAINING and FILTER CLEANING・・・・・・・

GENERAL TROUBLE SHOOTING・・・・・・・・

PCB ERROR CODES・・・・・・・・・・・・・・・

WIRING DIAGRAM・・・・・・・・・・・・・・・・

OPERATING SAFETY・・・・・・・・・・・・・・・

WATER FLOW AND

WATER TENPERATURE・・・・・・・・・・・・

WARANTY CONDITIONS・・・・・・・・・・・・・

IMPORTANT

This User Guide has been prepared for Installers and Servicers of the equipment. Please keep

it in a safe place for future reference.

FOR THE INSTALLER

The installation must be done in accordance with the information supplied in this User Guide.

All other relevant National, State or Local regulations must also be conformed with and these

include (but are not limited to):

Australian Standard AS3500.1 – Water Supply

Australian Standard AS3498 – Hot Water Supply

Australian Standard AS3000 – Electrical Installation

Australian Installation Code AS5601 – Gas Appliance Installation

Local Water, Gas & Electrical Authority Regulations

Municipal Building Codes

FOR THE SERVICER

Maintenance and fault-finding must be done in accordance with these instructions and the

applicable regulations listed above.

@@@@@@@@@@@WARNING@@@@@@@@@@@

Installation and service must be performed by a qualified installer (for example, a

licensed plumber or gas fitter).

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 instructions

handbook and the following additional instructions for the water heater outlet connection.

1. When connecting the hot water supply to

the fixtures in the property a minimum of

One (1) Metre of pipework must be used

between the outlet of the water heater and

the first tap and outlet. See Diagram

below.

2. The Hot water line should be insulated

with Ensolex or similar pipe insulation.

3. When the installation is completed the

temperature is to be tested at the taps to

confirm the water temperature does not

exceed the required 50°C setting.

SPECIFICATIONS

MODELS

/LCL20

LCN26/LCL26

Gas Input MJ/h 160 195

Inlet Pressure

kPa – Nat. Gas

1.13 min.

2.75 max.

1.13 min.

2.75 max.

Inlet Pressure

kPa - LPG 2.75 min./max 2.75 min./max.

Water Supply

Pressure

kPa

150* min.

1200 max

150* min.

1200 max.

Height mm 542 542

Depth mm 170 215

Width mm 350 350

Weight kg 15.7 17.2

Gas Connection mm 20 BSP 20 BSP

Water Connections 15 BSP 15 BSP

Ignition Electronic Electronic

Electrical Supply V 240 AC 240 AC

NOTES:

* The appliance will operate at reduced performance below 340 kPa.

For information relating to burner test point pressures and injector sizes refer to the rating

plate located on the right hand side of the cabinet for each model. (please refer to p.7)

For information relating to overall dimensions and connection points refer to diagrams.

(Please refer to p.5)

Before installing in areas over 1500 m above sea level, contact the manufacturer for

instructions.

Total length to first tap

or outlet is required to

be a minimum of 1

meter from the outlet

connection of the water

heater.

Pipe size is nominal

18mm from hot water

outlet to the first tap or

outlet.

First tap or outlet

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 instructions completely before installing this product.

The Water Heater is an instantaneous, tankless water heater designed to efficiently

supply endless hot water for your needs.

The principle behind the water heater is simple:

Burner

Heat exchanger

Exhaust

F l o w s e n s o r

Thermistor

Computer

board

A C 2 4 0V

G a s v al v e

Fan

C o l d w a t e r i n le t

G a s

H o t w a t e r o u t le t

1. A hot water tap is turned on.

2. Water enters the heater.

3. The water flow sensor detects the water flow.

4. The computer automatically ignites the burner.

5. Water circulates through the heat exchanger and then gets hot.

6. The computer will modulate the gas supply valve and water flow to produce the right

amount of hot water at the correct temperature.

7. When the tap is turned off, the unit shuts down.

※ This diagram illustrates the

w a t e r h e a t e r d e s i g n

concepts only and is not

a c c u r a t e t o t h e o n e

p h y s i c a l d e s c r i p t i o n .

GAS

COLD

HO T

GAS

HOT

COLD

133 124

47 GAS

330

350

520

490

3 7

198

6 0

9 4

335

7 9

1 9

41 HOT

49 COLD

170

1 5 .7

542

137

31 POWER

POWER

46:COLD

86:GAS

114:HOT

124:POWER

3 4

ACCESSORIES

Check that the installation manual and screws are included with the unit.

Screws ×4 Manual

DIMENSIONS AND CONNECTION POINTS

G A S

C O L D

HOT

G A S

H O T

C O L D

1 9

3 7

3 3 0

3 5 0

4 9 0

1 2 41 3 3

3 3 5

4 4 .5

GAS

5 2 0

4 1 H O T

4 9 C O L D

1 9 8

2 1 5

1 8 2

5 4 2

15 .7

8 4 3 4

POWER

2 5 P O W E R

Model

Model26

Model18

Model20

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 heater where water leakage will not damage surrounding areas.

2. Check the rating plate and gas type label for the correct GAS TYPE, GAS PRESSURE,

WATER PRESSURE and ELECTRIC RATING.

*If this unit does not match your requirements, do not install and consult with

manufacture.

3. If any problem should occur, turn off all hot water taps and turn off the gas. Then call a

trained technician or the Gas Company or the manufacturer.

@@@@@@@@@@@WARNING@@@@@@@@@@@

For the continuing safety of this water heater it must be installed and operated and

maintained in accordance with manufactures instructions.

Installation and service must be performed by a qualified installer (for example, a

licensed plumber or gas fitter).

The installer (licensed professional) is responsible for the correct installation of the

water heater and for compliance with all relevant National, State or local

regulations.

The water heater must be installed OUTDOORS ONLY. DO NOT install the

water heater indoors.

@@@@@@@@@@@WARNING@@@@@@@@@@@

Water temperatures above 70 ℃can cause severe burns or death from scalding.

Children, the disabled and the elderly are at a high risk of being injured. Feel the water

temperature before bathing or showering. Do not leave children, disabled persons, or

the elderly unsupervised. The Australian Standards AS 3498 gives full details of the

requirements for supply of controlled temperature to ablution outlets (bathrooms) and is

required to be conformed to under all plumbing codes within Australia.

Do not store or use gasoline or other flammables, vapors, or liquids in the

vicinity of this appliance.

Do not reverse the water and/or gas connections as this will damage the

gas valves and can cause severe injury or death. Follow the diagram on p.

10 and 12 when installing your water heater.

Do not use this appliance if any part has been in contact with or been

immersed in water. Immediately call a licensed plumber, a licensed gas

fitter, or a professional service technician to inspect and/or service the unit if

necessary.

Do not disconnect the electrical supply if the ambient temperature will drop

below freezing. The Freeze Prevention System only works if the unit has

electrical power. The warranty will not be covered if the heat exchanger is

damaged due to freezing. Refer to the section on the Freeze Prevention

System on p. 20 for more information.

Prohibited

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 label and the rating plate for the correct gas type, gas pressure, water

pressure and electrical rating for your application. Do not install this unit if these requirements

can’t be met.

The manifold pressure is preset at the factory. It is computer controlled and should not

need adjustment.

Occupants are advised of any inconveniences which could occur such as disconnection of

services.

You follow the electrical earthing procedure outlined in AS3500.4 before cutting or

uncoupling existing metallic pipework.

It should be as close as practical to the hot water outlets to minimise heat loss and cost.

The water heater does not require a fireproof back plate if installed on timber wall.

Rating Label Position

on Cabinet

Gas Type Label

Position on Cabinet

@@@@@@@@@@@CAUTION@@@@@@@@@@@

This equipment is not suitable for pool or spa heating.

Water hardness may affect the water heater. It may be damaged.

It is important that the water heater is installed in water conditions that are suitable for

its efficient, long use.

This is a water heating apparatus only and the final fitness of water delivered is

dependent upon the quality of water supplied to this system.

The connection, attachment, integration or general association of other equipment or

parts not specified by the water heater which either directly or indirectly affect the

operation or performance of this equipment – could void the warranty.

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 for other services.

It must be located in accordance with the requirements of AS5601 and have sufficient

clearances from eaves, windows, vents etc. – see the diagram on the p.11.

“Exemption from Prescribed Statutory Requirement”: AS5601-2000 Clause 5.13.6.5, This

relates to the physical separation distance specification where multiple appliances are

employed. That equates to a minimum 150mm horizontal flue separation distance allowing

appliances to be placed side by side in the same vertical plane

Most load bearing walls such as brick, brick/veneer, weatherboard and stud-frames are

suitable locations.

Securely fasten the unit to the wall with screws or bolts in the top and bottom brackets. A

minimum of two top and bottom must be used.

@@@@@@@@@@@CAUTION@@@@@@@@@@@

This is a water heating apparatus only and the final fitness of water delivered is

dependent upon the quality of water supplied to this system.

Although the water heater is designed to operate with minimal sound, you should not

install the unit on a wall adjacent to a bedroom, or a room that is intended for quiet

study or meditation, etc.

Locate your heater close to a drain where leakage will not do damage to surrounding

areas. As with any water heating appliance, the potential for leakage at some time in

life of the product dose exist.

@@@@@@@@@@@WARNING@@@@@@@@@@@

Every care is taken to warn occupants of the building and the public of any injury that

may occur from falling tools, open trenches, water connections or any other general

hazard.

Make sure the water heater will have enough combustion air and proper ventilation.

Keep the area around the water heater clean. Particles may clog the air vent, reduce

fan function, or cause improper combustion.

Locate unit for easy access and maintain proper space for service and maintenance.

Install the unit so that it can be connected or removed easily.

The water heater must be installed outdoors only. Do not install the water heater

indoors.

Do not locate your water heater in a pit or any location where gas and water can

accumulate.

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.

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 insufficient gas volume will

adversely affect performance.

2. Inlet gas pressure must not exceed the above maximum values; gas pressure above the specified

range will cause dangerous operating conditions and damage to the unit.

3. Until testing of the main gas line supply pressure is completed, ensure the gas line to the water

heater is disconnected to avoid any damage to the water heater.

Size the gas piping according to AS5601 installation code for the correct pipe sizing for the

water heater.

Always use approved connectors to connect the unit to the gas line. Always purge the gas

line of any debris before connecting to the water heater.

Install a manual gas shut-off valve between the water heater and the gas supply line.

The regulator is preset at the factory. It is computer controlled and is not to be adjusted by

any person other than a qualified Service Provider.

When the gas connections are completed, it is necessary to perform a gas leak test either

by applying soapy water to all gas fittings and observing for bubbles or by using a gas leak

detection device.

GAS INLET

SUPPLY

POWER CORD

GAS VALVE

a@@@CAUTION@@@a

1. Turn off the electric power to the

water heater and manual gas valve

located on the outside of the unit

before beginning gas connection.

2. Confirm the position of the gas inlet.

Do not connect water line to gas

inlet. It may be critical damaged.

@@@@@@@@@@@WARNING@@@@@@@@@@@

Conversion of this unit from natural gas to propane or propane to natural gas cannot be

done in the field. Contact your local retailer or distributor to get the correct unit for your

gas type.

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