A.O. Smith ZIP Manuale utente

User Manual

Tankless Electric

Water Heater

Smart.

Compact.

Powerful.

7.5 kW and 9 kW

Contents

What’s in the box?

1. Tankless Electric Water Heater

2. User Manual

3. Wall Mounting Accessories

General Information .......................................................................1

Safety Instructions ......................................................................... 2

Technical Specications....................................................................3

Safety Precautions .........................................................................4

Installation ................................................................................5

Installation (contd...) .......................................................................6

Plumbing instructions .....................................................................6

Operation .................................................................................7

Troubleshooting ..........................................................................10

Circuit Diagram ...........................................................................12

Warranty Terms and Conditions ...........................................................13

General Information

On Receipt

It is our policy to promote safe delivery of all orders. This product shipment has been thoroughly

checked, packed and quality certied before leaving our factory.

Visible Loss or Damage

If any of the goods called for on the bill of lading or express receipt are damaged or the quantity

is short, do not accept them until the freight or express delivery agent makes an appropriate

notation on your freight bill or receipt.

Concealed Loss or Damage

When a shipment has been delivered to you in apparent good condition, but upon opening the

packaging if any loss or damage has taken place while in transit, inform the carrier’s agent / A. O.

Smith representative immediately.

About this manual

This manual is a guide to good practice for operating and periodic maintenance of the A. O.

Smith ZIP Water Heater. Do not operate the Water Heater before reading the user manual.

Please follow instructions in this manual to ensure personal safety and proper operation of

this product. Always install, operate, inspect and maintain this product in accordance with all

applicable standards. Please store this user manual carefully for any future reference.

Disposal of this Product

(Waste Electrical and Electronic Equipment)

This marking on the product, accessories or User Manual indicates that the product and its

electronic accessories should not be disposed of with other household waste at the end of their

working life. To prevent possible harm to the environment or human health from uncontrolled

waste disposal, please separate these items from other types of waste and recycle them

responsibly to promote the sustainable re-use of material resources.

Household users should contact their local government oce, for details of where and how

they can take these items for environmentally safe recycling. This product and its electronic

accessories should not be mixed with other commercial wastes for disposal.

Safety Instructions

The safety of you and your loved ones is paramount. There are several safety related messages in

this manual, which have been provided during various steps such as the installation, operation

and maintenance of your ZIP Water Heater. These messages point out potential hazards and also

educate on how to reduce any potential risks. Please always read and follow all safety messages

as provided in this user manual.

This is the safety alert symbol. This symbol alerts you to potential hazards

that can hurt you and others. All safety messages will follow the safety alert

symbol and either the word“DANGER” or“WARNING”.

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result

in death or serious injury.

WARNING

Indicates a potentially hazardous situation, which if not avoided, could result

in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result

in minor or moderate injury or property damage.

WARNING

Do not use this Water Heater if any part has been under water. Immediately contact an

Authorised Service Technician to inspect the Water Heater and contact A. O. Smith Service

personnel to replace any part of the control system which has been under water. Failure to

follow this instruction can result in property damage, serious injury or death.

IMPORTANT

These instructions have been written as a guide for the proper installation and operation of

your Water Heater. A. O. Smith will not accept any liability where these instructions have not

been followed. However, for your safety and to avoid damage caused by improper installation,

it is recommended that Water Heater must be installed by an Authorised Service Technician.

Before proceeding with the installation instructions:

1. Inspect the Water Heater and its component parts for possible damage. Do Not install or

attempt to repair any damaged component parts. If you detect any damage in the Water

Heater, please contact the dealer where the Water Heater was purchased or call A. O. Smith

Customer Care Centre.

2. Verify that the voltage being supplied corresponds to that which is marked on the Water

Heater manual.

Technical Specications

Model ZIP

Power [kW] 7.5 9

Voltage/Frequency [V/Hz] 230~/50

Rated Current [Amps] 32.7 39.2

Circuit Breaker (MCB) rating [Amps] 50 63

RCCB rating (Earth leakage protector) 63Amps, 30mA AC

Eciency Δt=25°C [ltr/min.]* 4.3 5.1

Wire size for wiring [sq.mm] 6 6

Shower head size [inch] maximum 6 8

Temperature range [°C] 30-55**

Working water

pressure

N/cm22 - 60

Water head (metres) 2 - 61.2

Inlet/Outlet connections [inch] ½ BSP

Net Weight (kgs.) 3.4 3.8

*Output water temperature may reduce if the ow rate is more than above values.

**The maximum set temperature may vary ± 5 °C.

Dimensions

Figure 1

360 mm

220 mm

Front view Side viewRear view

90 mm

Figure 2

Front view without

Service cover

Front view with

Service cover

Part Description Part Description

1 Cold water inlet 7 Terminal block

2 Hot water outlet 8 Thermal Cut-out

3 Flow sensor 9 Heating chamber

4 Temperature sensor 10 Front cover

5 Rear cover 11 LED display

6 Control board

Safety Precautions

During Installation

Do not install the Water Heater where there is

direct sunlight or rain. It is has to be installed

indoors only.

Figure 3

CAUTIO

Do not install the Water Heater where water

splashes on the Water Heater.

Figure 4

CAUTIO

Installation

Before installing, ensure the tools Adjustable wrench, Teon tape, Measuring tape, Hammer,

Bubble level indicator and Impact drill tool are available.

Mounting the Water Heater

•It is recommended as per IS 302-1 to have 6

inches clearance from wall.

•Select a place to mount Water Heater in a

vertical position nearby water ttings.

Figure 5

Water

Heater

6 inch.

CeilingCeiling

Wall

•Water Heater must be located within 2 ft.

(approx.) from a 230 V power supply with

proper grounding.

•Make sure that the wall can withstand at

least twice the weight of the Water Heater

when completely lled with water.

Figure 6

2 ft.

MCBRCC

False

Wall

Solid

Concrete

Wall

Solid

Concrete

Wall

Solid

Concrete

Wall

Solid

Concrete

Wall

OFF

•Mark the holes using Mounting template

(Step 1).

•Drill 3 holes of diameter 6 mm (Step 2).

Figure 7

Holes

Hole

Mounting

Template

Mounting

Template

Drilling

Tool

•Insert the Expansion Anchor into the hole

(Step 1).

•Insert the Mounting screw over the

Expansion Anchor and tighten the

Mounting screw by rotating it till it gets

xed steadily (Step 2).

Figure 8

Expansion

Anchor

Mounting

screw

Concrete

Wall

Concrete

Wall

Concrete

Wall

Concrete

Wall

Installation (contd...)

Mount the Water Heater on the Mounting bracket. Tug downwards on the Water Heater to

ensure that the Water Heater is xed steadily on the Mounting bracket.

Figure 9

Mounting

screw

Mounting

screw

Water

Heater

Concrete

Wall

Concrete

Wall

Concrete

Wall

Water

Heater

Water

Heater

Plumbing instructions

Figure 10 Installation Diagram

Hot

Water Tap

Cold

Water Tap

*Flexible

Hose

Teon

tape

*Flexible Hoses to be procured by the customer, not part of standard product.

1. Wrap the Teon tape around the inlet and outlet connections of the Water Heater to prevent

leakage.

2. Make necessary plumbing with reference to the Installation Diagram. (Refer “Installation

Diagram”)

3. Install rubber seal rings at the inlet and outlet connections.

4. Connect the cold water pipe to the inlet.

5. Connect the hot water pipe to the outlet.

CAUTION

•Make sure a suitable Teon tape is used for all plumbing connections to prevent leakage.

•Use only Nylon/ Stainless Steel (SS) braided hoses (Flexible Hoses) having a minimum

pressure rating of 6 Bar and hoses should be compatible for hot water applications.

•Water Heater must be mounted in vertical position only as shown in Installation Diagram.

•Failure to follow this instruction can result in property damage.

Operation

Figure 11 1. Open a nearby hot water faucet to permit air to escape.

2. Open the cold water inlet valve completely and allow water to ow

to the unit.

3. Close hot water faucet when water ows.

4. When all water connections are completed, check for leaks and

take corrective action before operating.

Note: The minimum water ow to switch ON the unit is 1.8 L/min.

CAUTION

•The Water Heater will not run unless there is a minimum water ow (1.8 L/min). Failure to do

so may result in damage to the Water Heater and injuries to the user. This will also make the

warranty null and void.

•Once the Mounting and Plumbing is completed, then only the power supply should be

switched ON.

•Do not splash water directly or clean with benzene, pesticides, thinner, alcohol, etc., but use

a soft, dry cloth to clean the Water Heater.

Connecting to Electrical Supply

Figure 12

OFF

•Customer should procure a suitable circuit breaker MCB ratings

and RCCB with BIS certication as per Technical Specications

(Refer Page 3).

•Ensure that wires are connected to circuit breaker MCB and RCCB

and reliable earthing has been done.

•Ensure that the unit should be connected to a single circuit (single

phase supply).

•Ensure a separate electric supply cable (Refer Page 3) from main

electrical supply with BIS certication and protected by a double

pole breaker is used.

Note : Installation of MCB and RCCB for unit (Safety purpose) is strictly recommended.

CAUTION

•Electrical connection to the Water Heater should have circuit breaker, do not use any

adapters. Use multimeter to check whether the live line and neutral line are not reverse, to

ensure complete safety.

•Before installing the Water Heater, conrm that the power of Water Heater matches electric

meter capacity and electric supply cable (Refer Page 3).

•The Water Heater should be earthed reliably. It is prohibited to connect the earth wire to

neutral wire or faucet water pipe.

•If the power supply cord is damaged, it must be replaced by the manufacturer or Authorised

Service Technician in order to avoid a hazard.

CAUTION

In order to avoid a hazard due to inadvertent re-setting of the Thermal cut-out, this Water

Heater must not be supplied through an external switching device, such as a timer, or

connected to a circuit that is regularly switched ON and OFF by the utility.

Figure 13

Temperatur

setting

ock

LED

display

Power

ON/OFF

1. Switch ON the Water Heater’s power supply.

2. Press Power ON/OFF on the water heater. The LED display glows for 2 seconds along with

beep sound and enter into standyby mode. The LED display shows actual water temperature

of the outlet.

3. Press the or touch button until the required temperature is displayed on the LED

display. Wait for few seconds without pressing any buttons, the value ashing in the display

will be changed as set temperature and stored in memory. It will return to its normal mode

and the heating of the water is based on the new set temperature. Temperature setting range

is between 30°C to 55°C.

4. Check hot water with hand before you taking a shower.

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