Zip InLine CEX-U Manual

Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

Zip

InLine

Installation instructions & user manual

Model number:

CEX-O, CEX-U

Electronically controlled instantaneous water heaters.

2Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

CONTENTS

• Please read these instructions carefully before commencing installation of the

instantaneous water heater.

• Please leave these instructions with the end user after installation.

• To ensure you have a copy of the latest instructions visit www.zipwater.co.uk.

SAFETY INSTRUCTIONS.........................................3

GENERAL PRODUCT DESCRIPTION ...............................6

APPROVALS ...................................................6

DIMENSIONS ..................................................6

SPARE PARTS .................................................7

TECHNICAL DATA ..............................................8

INSTALLATION .................................................9

Requirements .................................................9

Electrical connection ..........................................11

COMMISSIONING..............................................13

Selection of power rating .......................................13

SERVICE MENU ...............................................16

OPERATION ..................................................18

Temperature setting ...........................................18

Programme buttons ...........................................18

Temperature limitation .........................................18

Reset to factory setting.........................................19

How to save energy ...........................................19

ECO mode ..................................................19

Power limit ..................................................19

MAINTENANCE & CLEANING ....................................20

Purging after maintenance work..................................20

FAULT FINDING ...............................................21

END OF LIFE DISPOSAL ........................................22

WARRANTY ..................................................22

Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

SAFETY INSTRUCTIONS

IMPORTANT:

PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL

REQUIREMENTS, WARNINGS AND CAUTIONS. USE THIS PRODUCT CORRECTLY AND WITH

CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE

DAMAGE AND/OR PERSONAL INJURY, AND WILL INVALIDATE THE WARRANTY. RETAIN THESE

INSTRUCTIONS FOR FUTURE USE.

WARNINGS

• Installation, commissioning and maintenance of this appliance

must only be carried out by a competent installer who will

then be responsible for adhering to all relevant standards and

regulations.

• If inlet temperature is up to 70 °C (eg. fed from a solar supply)

mixing with cold water will be required to ensure a safe

temperature at the outlet.

• Do not remove the front cover under any circumstances before

switching off the mains electrical supply to the unit.

• Never make technical modifications, either to the appliance

itself or the electrical leads and water pipes.

• The appliance must be earthed at all times.

• Pay attention to the fact that water temperatures in excess of

approx. 43 °C are perceived as hot, especially by children, and

may cause a feeling of burning. Please note that the fittings

and taps may be very hot when the appliance has been in use

for some time.

• The values stated on the rating plate must be observed.

• In case of malfunction, disconnect the mains power supply

immediately. In case of leaks, cut off the mains water supply

instantly. Repairs must only be carried out by the customer

service department or an authorised professional.

• This appliance can be used by children aged 3 years and

above and persons with reduced physical, sensory or mental

capabilities or lack of experience and knowledge if they have

4Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

SAFETY INSTRUCTIONS

To observe additionally for pressureless installation:

• The water outlet behind the devices must not be blocked, and

the water flow must not be restricted.

• The water outlet facilities, such as shower heads must be

decalcified regularly. Deposits must be removed at regular

intervals.

• Only the fittings recommended by the manufacturer may be

used.

• If the appliance is exclusively connected to a single shower,

only the shower heads recommended by the manufacturer may

be used. No other fittings or appliances which decrease the

water flow to the shower may be installed.

been given supervision or instruction concerning use of the

appliance in a safe way and understand the hazards involved.

Children shall not play with the appliance. Cleaning and

user maintenance shall not be performed by children without

supervision.

• If the appliance is factory equipped with a power supply cable,

it must be replaced with an original spare cable from the

manufacturer in case of damage by an authorised technician in

order to avoid any hazards.

• In accordance with EN 60335, the appliance must be

permanently connected to the supply through an isolating

switch with a contact separation of at least 3 mm in all poles

and be protected by a suitably rated RCD.

• The wall bracket must be secured with the supplied screws and

dowels. The appliance must be secured to the wall bracket.

The appliance may only be operated if it has been properly

mounted on the wall bracket.

• The required water resistance may not fall below the value

stated on the rating plate at any time.

Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

SAFETY INSTRUCTIONS

• The Zip InLine is intended for connection to mains supply only.

In any other case please contact Zip on 0345 6 005 005 for

advice.

• Zip Water UK cannot be held liable for any damages

caused by failure to observe these instructions.

!CAUTIONS

• Optimum operation is ensured at a water flow pressure of 0.2

to 0.4 MPa (2-4 bar). The appliance must not be subjected to

pressure exceeding 1.0 MPa (10 bar).

• The appliance must only be used when correctly installed and

in perfect working order.

• The appliance must be installed in a frost-free room and must

never be exposed to frost.

• The CEX-O and CEX-U range is not intended for use with

thermostatic mixing valves or taps. If thermostatic mixing

valves or taps are to be used, their compatibility with the

instantaneous water heater must be verified under site

operating conditions.

• The appliance must be completely filled with water before

being switched on.

• Before commissioning for the first time and each time the

appliance or the piping system is emptied (e.g. due to work

on the plumbing system or maintenance), the appliance must

be purged by opening and closing the hot water tap until all

air has been eliminated from the water heater and no more air

emerges, before re-connecting to the electrical supply.

• The appliance must only be used for heating wholesome (or

cat 1) water. The specific water resistance must not fall below

the required value indicated on the rating plate. The appliance

must not be used for any other purpose.

• Incoming water temperature must not exceed that stated in

Technical data.

6Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

APPROVALS

Zip InLine CEX-O and CEX-U are VDE approved to the LVD and EMC directives and

are CE marked.

Zip InLine CEX-O and CEX-U have been examined, tested and found when correctly

fitted to comply with the requirements of the United Kingdom Water Regulations /

Byelaws (Scotland).

The products are listed under the WRAS (Water Regulations Advisory Scheme) Water

Fittings and Materials Directory.

DIMENSIONS

108

312

100

177

108

312

100

177

Dimensions in mm

GENERAL PRODUCT DESCRIPTION

The instantaneous water heater CEX-U / CEX-O is an electronically controlled,

pressure-resistant water heater for a decentralised hot water supply to one or more

outlets.

Its electronic control regulates the heating power consumption depending on the

selected outlet temperature, the respective inlet temperature and the flow rate, thus

reaching the set temperature exactly to the degree and keeping it constant in case of

pressure fluctuations. The required outlet temperature can be entered on a keypad and

can be read off the digital display.

Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

SPARE PARTS

Heating element

with SDB IN82862

Temperature sensor

set IN82512

Connecting

terminal

IN86250

Flow sensor

IN82819

Inlet pipe

IN82802

Electronic PCB

IN82811

Non-return

valve IN82246

Grommet

IN82806

Hot & cold water connection

IN82813

Safety thermal

cut-out STB

IN82860

Control panel

IN82812 CEX-U

IN82816 CEX-O

Front cover

IN89589 CEX-U

IN89588 CEX-O

Filter

When ordering spare parts, please always specify the appliance model and serial

number.

Spares are available, however they may be on a made to order basis.

8Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

TECHNICAL DATA

Zip InLine

MODEL CEX-O CEX-U

Installation Over-basin Under-basin

Declared load profile XS

Energy efficiency class *)A

Energy efficiency (ηwh) *)40 %

Annual electricity consumption *)466 kWh

Rated power (Rated current) 6.0 / 9.6 kW (27.3 / 40 A)

Chosen power (Chosen current) 6.6 kW

(28.7A)

8.8 kW

(38.3A)

6.6 kW

(28.7A)

8.8 kW

(38.3A)

Electrical connection 1/N/PE 220..240 V AC

Min. required cable size 3 × 4 mm23 × 6 mm23 × 4mm23 × 6 mm2

Hot water (l/min) max. at ∆t = 33 K 3.8 5.0 3.8 5.0

Rated volume 0,3 l

Rated pressure 1.0 MPa (10 bar)

Connecting type pressure resistant / pressureless

Heating system Bare wire heating system IES®

Required spec. water resistance @ 15 °C

Spec. electrical conductivity

≥ 1100 Ωcm

≤ 90.9 mS/m

Inlet temperature ≤ 70 °C

Flow rate to switch on – max. flow rate 2,0 – 5,0 l/min 1)

Pressure loss 0.2 bar at 2.5 l/min 1.3 bar at 9.0 l/min 2)

Temperature choice 20 °C – 55 °C

Water connection G ½"

Weight (when filled w. water) 2.7 kg

VDE class of protection I

Water protection class IP25 IP24

Type of protection / safety

*) The declaration complies with the EU regulation No 812/2013

1) Flow rate limited to achieve optimum temperature rise

2) Without flow regulator

The cable size may not exceed 10 mm²

All data quoted at nominal supply voltage. Standard European voltage tolerances of -6 % to +10 % may be

applied.

A minimum water pressure of 0.2 MPa (2 bar) is recommended for optimum performance.

Maximum flow rate will be achieved at a water pressure of 0.6 MPa (6 bar).

The appliance must not be subject to more than 1.0 MPa (10 bar).

Temperature rise °C = (Nominal power rating (kW) x 14.3)

Flow per minute (litres)

Instantaneous performance calculations

Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

INSTALLATION

• Appliance must only be installed in frost-free rooms. Never expose appliance to

frost.

• The CEX-O is designed for wall mounted installation and has to be installed with

water connectors downward. CEX-U for under-basin installation must be installed

with the water connections upward.

• The CEX-O complies with protection type IP25. The CEX-U complies with

protection type IP24.

• In order to avoid thermal losses, the distance between the instantaneous water

heater and the tapping point should be as small as possible (< 2m).

• For maintenance work, a shut-off valve should be installed in the supply line. The

appliance must be accessible for maintenance work.

• Hot and cold water connecting pipes should be WRAS approved and of copper or

steel construction. Plastic pipes may only be used if they conform to EN 16893,

Series 2. The hot water pipes must be thermally insulated.

• The specific resistance of the water must be at least 1100 Ωcm at 15 °C. The

specific resistance can be asked for with your water supply company.

• When considering the location of the heater, consideration should be given to the

safe and visible disposal of any water resulting from leaks and seepage. This is

particularly relevant when the heater is located in a cupboard or any concealed

location. For guidance please call Zip on 0345 6 005 005.

Installation site

Requirements

The following regulations must be observed:

• EN 806

• The installation must comply with current IEE regulations and relevant Local

Authority requirements

• The rating plate and technical specifications

• Only functional and appropriate tools must be used during the installation

10 Installation instructions & user manual

9120-25693 v3.00 Oct 2018 - ZIP CEX

Technical support

Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk

INSTALLATION

• Attach the water connection pipes to the

appliance’s water connection. Use the

½ inch seals.

• Open and close the hot water tap until no

more air emerges from the pipe and all air

has been eliminated from the water heater.

Mounting the appliance

Installing the appliance

263

179

140

140 77

Fig. 1

Fig. 2

Fig. 3

• Thoroughly flush the water supply pipes

before installation to remove soiling.

• Hold the appliance on the wall, and mark

the drill lines at top and bottom, right and

left, corresponding to the small notches at

the edge of the appliance front cover (see

figure 1). The alignment template (located

on the pull-out pages in the middle of this

manual) may be used for this purpose.

• Connect the top and bottom marks

vertically with each other (A–A).

• Connect the right and left marks

horizontally with each other (B–B).

• The intersections of these lines are the

drill points (see figure 2).

• Drill the holes using a 6 mm drill. Insert

the included dowels and screws. The

screws have to protrude 5 mm.

• Hang up the appliance into the rear

hanging openings until it clicks into place

(see figure 3).

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