Ketko Cwm-df24a Guide

Online Electric Water Heater

Instruction Manual and Warranty Card

Water inlet

Model : CWM-DF24A

Introduction

Part Name

Features

Attention

Installation

Operational Manual

External Cleaning ang Maintaince

Fault Finding

Specification and Electric Circuit

Content

Please read this instruction sheet carefully before use

Please keep it properly for reference.

Heating, controlling and showering three in one

Dear Customer,.......

For your use, please read this book carefully before operating

the machine, in order to use the machine properly; please study

the right installation, maintenance and operation of this machine.

And after reading, please keep this book proper in place, for

further reference in the future.

Our company's after sales service will be always with you, no

matter what problems you meet during use, please contact our

after sales service centre, we will hold the principle of honesty

and provide the best service for you.

Tips:Safety is most important when using

instant electric water heaters!

According to research, most electric shock accidents are not caused by water heater

itself but by environment. In most countries the families' electricity environment has

unsafe concerns, like wiring of wire, no earth wire, defective earth wire or incorrect

wire connection etc. Creepage protection device on normal water heaters can only

protect creepage caused by water heater itself, but not creepage caused by environment.

This product use wall insulation safe guarder technology, forms a constant safe resistance

between human body and power supply, make sure your shower environment is safe.

Remark:

- If the supply cord is damaged, it must be replaced by the manufacturer, its

service agent or similarly qualified persons in order to avoid a hazard .

- 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.

- This appliance must be provided to ensure all-pole disconnection from the

supply mains.

Instant shower integration expert

Part Name

Remark: All the pictures in this instruction sheet are for reference

only, due to continue improvement of products, product and accessories

you buy may not be exactly the same as pictures in the book, please

come to an understanding!

Front cover

1,Front cover 2,Screen 3，Cable input 4， Water inlet

5， Water outlet 6,Pressure relief valve 6,Screw hole

Back cover

Features

Safe

Energy saving

Temperature setting for different seasons

Start it when use, no pre-heating or thermal insulation is required,

save energy and electricity.

Professional nickel chrome heating elements have 99% heating

efficiency.

Heating can's part temperature is lower than 63℃, lime

scale cannot be formed, faster, longer and higher heating efficiency.

Multi water supply system, supply water for different bathrooms

and kitchen.

Nice appearance

Neat and compact industrial design, nice looking,

luxurious and generous

No pre-heating is required; hot water is available after turn on the

machine, convenient and fast shower.

High efficiency

Fast

High temperature protection (When temperature is higher than

75±5℃, power will be off automatically, water heater cannot

start heating. Heating without water protection.Safe earth wire

protection

Intelligent control system, water and power cut off, high pressure

or temperature protection.

Creepage indicator.

Orientation of this design is high technology, humanization.

High technology

Large screen indication for water output temperature and output

power information, easy to check working status.

''Patent designed'' Start with Nickel chrome........

nickel chrome heating elements plus wall insulation

defender, protect user's safety.

''German'' Start with Nickel chrome........

electricity insulation technology, advanced technology in the world.

Low flow protection Heating will start only if water flow is

higher than 2.8L/Min

Fast

''Patent designed'' Start with Nickel chrome..............

heating can, nickel elements contained is 5 times higher

than normal heating materials, much stronger for

corrosion and lime scale protection, suitable in different

water and area.

18 32

60 80 60 6

Attention

Warning label Any place with this label, refers to appliance safety and human

safety, operation must follow the requirement exactly, otherwise,

appliance might be damaged or put user in danger

Please check ammeter's type and capacity,

make sure it meets appliance's request.

Normal Meter Smart Meter Mechanical Meter

Please prepare independent power

distribution for bathroom (depends on

installation place of water heater), use

special copper core between power supply

and bathroom which complies with water

heater's requirement

Air switch used for water heater should

meet with following specification

Power Air switch

Please exactly follow requirements

and advises stated in this instruction

sheet while installation and

maintenance

Please ask professional people's help

when wire connection, ammeter or

switch has problems.

Before wire connection, please connect

water way first and test.

Please install on a firm wall surface.

Electric water heater must have good earth

wire connection

Please reserve water inlet, outlet and

water pipes base on position of

installation.

380V Ammeter's type and capacity

Power Copper core section

Important : Please Do Not Install a

3 Pin Plug andSocket connection,

Provide an Air Circuit Breaker of

suitable rating as mentioned above.

Prohibited sign Any place with this label, is absolutely prohibited behavior,

otherwise, appliance might be damaged or put user in danger.

Do not use product when it is frozen, or

suspect to be frozen, before use, product

must be ice-out.

Do not use product when shower head or

hose is damaged.

Do not put your hand in direct contact

with faucet's water outlet before starting,

please confirm water output temperature

before use.

Please cut off power if water suddenly

ceases to flow during use.

Do Not use Plug to connect power....

this product must be connected with

special copper core from air switch.

Air switch is not the direct switch of

controlling water heater, please do not

switch on/off frequently, to affect its

sensitivity and cause danger.

This product should not be installed

outside the house.

This product should not be installed at

where does not have drainage.

This product should not be installed at

where is suspected to be frozen.

Attention

This product should not be installed at

where might be splashed directly with

water, please keep installation vertical

to ensure senstivity of flow switch

Water pipes and wire entry reservation before installation

Reserve water pipes

Pipe layout before bathroom decoration

Confirm place to install water heater, then reserve one water outlet and one water

inlet accordingly, the distance between these two points is 5-15cm. From family's

main power supply, add a special copper core which complies with water heater's

request to the air switch, reserve under the wall and connect to wire connection in

the bathroom.

Main switch

Reserved

wire outlet

Wire pack

About

Hot water

outlet

Water pipe reservation

A:Shower only

Water inlet connector

(outlet hose can be

connected with water

heater's hot water

outlet directly)

Hose

Represent water pipes

and concealed pipes

hide under the wall

B:Multi water supply

(Only for sink inside bathroom)

Triangular valve

or water mixing

valve

Cold water inlet

Circle centre's

distance

Floor

Sliding rail Sliding rail

Hot water

supply for

sink

Tee

Hose

Represent water pipes

and concealed pipes

hide under the wall

Cold water inlet

Installation

根據安裝前預留的最佳安裝位置，可參考下列安裝要點進行安裝。

Remove front cover, then according to reserved water inlet and outlet's

position, choose proper place to install water heater, and then fix it on

the wall with screws (Refer to picture 2)

PIC 2

2、Connect water heater to water inlet/outlet with nipple inner joints.

3、According to connection requirement, decide if the piece at the front

cover's bottom should be removed or not.

4、Testing with water, make sure each connection is well connected and

without any leaking, then connect light electricity plate and front cover.

5、Choose proper place to install sliding rail and shower handset.

This product must be installed by installer assigned by our company's after

sales service centre or sales department.

Choose proper place to put product on the wall, refer to the following steps:

Installation

Water pipe connection: (before wire connection)

Attention: before connect with hot water outlet, please let cold water flows for 20 seconds

to flash out impurities inside pipe, avoid blocking water heater.

For all water heaters which just be installed or haven't been used for a

considerable period, before use, please check their water connection, make sure

water flows out from shower head smoothly, then connect power and use.

After installation

Function description

On/off: Turn on or turn off the machine

Wire connection: (after water pipe connection)

Attention:

Water heater cannot be connected by a normal plug, water heater must be connected with

a disconnection incorporated in the fixed wiring, and water heater must be earth connected.

Function introduction

Flow testing function: through signal sent from water flow sensor,

PCB plate tests if water flows into water heater, system only starts

heating when flow rate is higher than 2.8L/Min.

Water inlet

Conncect family’s Live 3 Phases and Earth to the corresponding wire in the product.

Pleasedo not connect Neutral to this Product. Make sure connection is fully tightened.

Power selection: four levels power selection, every push of “ ” button

to increase one level, every push of “ ” button to decrease one level.

Output temperature is constant, 3 seconds after turn on, hot water flows out,

control precision is ±1℃,within 20 seconds reach setting temperature.when

voltage, inlet water temperature and flow rate change, output temperature

fluctuation is within 8% of setting temperature.

Under heating status, if temperature is higher than 80 degree, screen flash

"E1" (once per 1 second). Product stops heating.

Under heating status, push "M1" or "M2" can directly read previously saved

specification under M1 or M2 and work accordingly, only save setting temperature.

Factory setting is 36 degree, when user push this button, heating starts and heat to

36 degree, if user wants to change temperature during use, they can push

temperature decrease and increase buttons, and adjustment range is 32~40 degree.

If user would like to set temperature out of this range, they need to push Children

mode button to exit this mode, then adjust.

Output temperature setting, default setting is 38 degree.

Under power on status, next use will display last time's

setting temperature.

Actual flow rate: flow rate is tested by water flow sensor,

L/MIN.

Shower water capacity per each use, record water

capacity since heating until stop, unit is "L" (liter), during

this period, if heating stops for 5 minutes, then recording

clear, otherwise including previous heating figure.

Light belt display, orange color for temperature setting

less than 42 degree, red color for temperature setting

more than 42 degree.

1、Water connection

After installation, must let cold water flows to flash out impurities inside pipe, and make

sure no leaking from each connection, then the product could be electrified.。

2、Turn on the air switch ( only for the first use after installation), push knob button,

screen will be illuminated and show working on status, now heating is permitted to start.

Remark: only if water low is higher than 2.8L/Min, heating can start.

3. Temerpature setting

Constant output temperature, and default temperature is 38 degree. Push temperature “ ”

button to decrease temperature by 0.5 degree each time until 30 degree; push temperature

“ ” button to increase temperature by 0.5 degree each time until 60 degree.

Under constant power condition, next power on will indicate previous setting temperature

before power off.

4. Memory function

Under heating status, directly push “M1”, “M2” button, system can read data stored,

and screen displays “Memory 1”, “Memory 2” accordingly.

*Store data: push “M1”, “M2” button for 3 seconds until screen flash “Memory 1”,

“Memory 2” , then use temperature button to adjust setting temperature,

after adjustment, push “M1”, “M2” button again to confirm setting, each successful

setting will be reminded by buzzer.

*Read data: under heating status, push “M1” ,“M2” to operate shower under data

stored, and screen displays “Memory 1”, “Memory 2” accordingly

5.Children mode

Factory setting is 36 degree, when user push this button, heating starts and heat to 36 degree, if

user wants to change temperature during use, they can push temperature decrease and increase

buttons, and adjustment range is 32~40 degree. If user would like to set temperature out of this

range, they need to push Children mode button to exit this mode, then adjust.

6.Turn off

After showering, slightly push on/off button to stop.

7.Maintenance

When screen indicates “E1” and “ ”, please stop heating and repair。

When screen indicates “E2” and “ ”, please stop heating and repair.

Operation manual

External cleaning and

equipment maintenance

Before cleaning, power must be cut off, use wet cloth with neutral wash

clean to wipe smoothly, do not use petrol or other liquor, after finish, use

dry cloth to wipe again and keep the machine dry。

When use shower handset, if water flow is blocked or not smooth,

then use wash clean to clean lime scale inside.

Shower handset should be cleaned regularly.

Water heater's outlet can supply hot water to kitchen and washing

machine through multi water supply system.

Knob at the back of product is pressure relief valve, this should

not be adjusted by users, if any problems, please ask professionals

or our after sales service people to repair

Fault Finding

Important information: please cut off power before check internal parts of water heater

Defects Possible cause Action

Water is

too hot

Water is

too cold

Screen is

not

illuminated

Water flows

without

power

Air switch is off or wires

are not well connected.

Ask professionals to check air switch

and wire connection

Water flow rate is too low

or cold water temperature

is too high

High power setting

Increase water flow

Water flow rate is too high

or cold water temperature

is too low

If water flow rate is too

low, machine cannot be

started

Unstable voltage or lower

than voltage required by

product

Decrease water incoming flow

or increase setting temperature

Check water supply, if water

pressure needs to be increased,please

turn off other water supply in the

family, or add a pump to increase

pressure.

Ask professionals to check voltage.

Decrease temperature

Water heater is not turned

Power supply problem

Water flow is lower than

starting value

Internal parts broken or

doesn't work

Push on/off button to start system

Check power switch and wire

pressure needs to be increased,please

turn off other water supply in the

family, or add a pump to increase

pressure.

Ask professionals to check voltage.

Check water supply, if water

If problem still cannot be solved,

please contact on +91 8879864422. www.ketko.in

Electric circuit

2.8

Minimum pressure rate:0.1MPa

0.75

Specification

Rated Pressure Water resistance:

Minimum Flow rate: Water Proof Level:

800

Rated Power（kW） Dimension（mm）（L*W*H） Maximum current Rated Voltage

Explain

1、Wire pack

2、

3、

4、PCB

5、screen

6、

、

8、Water flow sensor

9、

AC contactor

Heating system

Water input temperature sensor

7 Water output temperature sensor

Stepper motor

24 40A 380V 3~ 50Hz

470*230*90

CUSTOMER COPY

Please inform the company after installation

before use to verify correct installation and demo.

Warranty void if this is not done and company is not

responsible for any consequential loss or damage.

Dealer

2 Years

Note: This warranty is on spare parts and labour charges

only and does not cover transportation expenses.

WARRANTY CERTIFICATE

Please do not use CPVC pipes for internal and external

connection at both the Hot and Cold water lines

and the company is not responsible for pipes, tiles and

any other damage connected to this unit.

The Product warranty is for 2 Years and the Tank Warranty is for Lifetime (1Litre Eva pulse)

and 7 years (3Litre Eva pulse ) Models, subject to the Terms and Conditions as follows.

1) Installation must be appropriate as mentioned in the Instruction Manual and Warranty

Card and by an Authorized Person Only after taking into consideration the site conditions.

2) Within the 2 Year warranty period, if the product malfunctions or stops working due to

above point no:1 not being implemented then the spare parts as well as labour charges

are applicable at actuals and will not be covered under warranty.

3) In case of manufacturing defect of the Tank , that is even though the Warranty is for

Lifetime (1L) and 7 years (3L) Models , the tanks will be replaced as free parts only but

the Labour Charges will be applicable for changing of this tank after the 2 years

product warranty.

Terms and Conditions : Inner Tank Warranty Related Important Information.

CUSTOMER COPY

WARRANTY CERTIFICATE

This is not valid without dealer stamp and invoice copy

Invoice Date:Invoice No:

COMPANY COPY