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1  GENERAL

1.1  General warnings

 

b

After having removed the packaging, check that the material 

supplied is intact and complete; if this is not the case, contact 

Vokera

 

Ltd

.

 

b

The 

Easi-Flo

 water heater must be installed by qualified person

-

nel as detailed under any current standards and law applicable 

and with the instructions provided by 

Vokera

 

Ltd 

in the manual 

supplied with the appliance.

 

b

The water heater must be used for the purposes it has been 

expressly manufactured. 

Vokera

 

Ltd

 declines all contractual and 

extra-contractual liability for damage caused to persons, animals 

or things, due to errors in installation, control, servicing or im-

proper use.

 

b

In the event of water leaks, disconnect the water heater from the 

mains power supply, close the water supply and promptly notify 

Vokera

 

Ltd

 or other professionally qualified personnel.

 

b

If the water heater is not used for an extended period, the follow-

ing minimum operations must be completed: 

 -move the main system switch to "off".

 

b

Servicing must be performed on the water heater at least once 

a year.

 

b

This manual is an integral part of the water heater and as a con-

sequence must be kept with care. If the manual is damaged or 

lost, contact 

Vokera

 

Ltd

 for another copy.

 

b

When the product reaches the end of its life it should not be 

disposed of as solid urban waste but should be brought to a 

separated waste collection facility.

 

b

This appliance should not be operated by children younger than 

8 years, people with reduced physical, sensory or mental ca-

pacities, or inexperienced people who are not familiar with the 

product, unless they are given close supervision or instructions 

on how to use it safely and are made aware by a responsible 

person of the dangers its use might entail. Children must not 

play with the appliance. It is the user's responsibility to clean and 

maintain the appliance. Children should never clean or maintain 

it unless they are given supervision.

1.2  Fundamental safety rules

The use of products that operate on fuel, electricity and water requires 

a number of fundamental safety rules to be observed, including:

 

a

The water heater must not be used by children or invalid persons 

without supervision.

 

a

Electrical devices or appliances, such as switches, household 

appliances, etc. must not be used if there is the smell of gas or 

unburned fuel. In this case: 

 -ventilate the room by opening doors and windows;

 -close the fuel stopcock;

 -promptly contact 

Vokera Ltd

, your gas supplier or other profes-

sionally qualified personnel.

 

a

Do not touch the water heater when barefoot or with wet parts 

of the body.

 

a

No service or cleaning operations may be performed without 

first having disconnected the water heater from the mains power 

supply, moving the main system switch to "off".

 

a

The safety or control devices must not be adjusted without the 

authorisation and written instructions from the manufacturer of 

the water heater.

2  DESCRIPTION

The 

Vokera

 

Easi-Flo

 is an instantaneous water heater, which - by design - incorporates electronic ignition, NTC temperature control and a coaxial 

flue that can be rotated – horizontally – through 360 degrees for various horizontal or vertical applications.

The Easi-Flo le can also be used with the 

Vokera

 twin flue system.

All installers are asked to follow the Benchmark Scheme by adhering to the Code of Practise, which can be obtained from 

www.centralheating.co.uk.

2.1  Structure

4

3

2

1

5

6

7

8

9

11

10

12

81

246

62

120

400

ø60

74

74

ø100

640

Maximum temperature thermostat

Cooled burner

NTC sensor

Fan

Exhaust flue duct

Air pressure switch

Pressure/depression

Exchanger

Ignition/detection electrode

10 

Burner thermostat

11 

Gas valve

12 

Water flow switch

Summary of Contents for Vokera Easi-Flo LE

Page 1: ...which aims to improve the standards of installation and commissioning of domestic hot water systems in the UK Installation Servicing Instructions THESE INSTRUCTIONS TO BE RETAINED BY USER Easi Flo le...

Page 2: ...16 5 18 Reset to factory settings 17 5 19 Reset to factory settings 17 6 COMMISSIONING 18 6 1 Gas supply installation 18 6 2 Water pipe work 18 6 3 Pre operation checks 18 6 4 Initial lighting 18 6 5...

Page 3: ...ght entail Children must not play with the appliance It is the user s responsibility to clean and maintain the appliance Children should never clean or maintain it unless they are given supervision 1...

Page 4: ...28 n gas connection 3 4 Concentric flue gas outlet pipes Diameter 60 100 mm Maximum length 2 6 m Loss due to 45 90 bend 1 1 5 m Wall hole 105 mm Separate flue gas outlet pipes Diameter 80 mm Maximum...

Page 5: ...AFC 18 GJ Daily electricity consumption Qelec 0 082 kWh Annual electricity consumption AEC 18 kWh Sound power level indoors LWA 51 dB A Emissions of nitrogen oxides NOx 40 mg kWh 2 3 Water circuit ou...

Page 6: ...OPE 3 4 2 1 4 5 3 1 2 bl V br br bl X2 1 14 gy gy bk bk w w gy OUT bl or r r pu pu MOD T B F L t S S PAD or gy OUT bl 1 3 T L X4 2 1 X1 L N 230 V F 3 15A M5 br bl bl br 230 V aux IWH02 Control oard C...

Page 7: ...mponents A fully integrated electronic control board featuring electronic temperature control self diagnostic fault indicator continuous gas modulation Electronic ignition with flame supervision Fan D...

Page 8: ...If the gas supply serves more than one appliance it must be ensured that an adequate supply is maintained to each appliance when they are in use at the same time NOTE It is reasonable to expect a dro...

Page 9: ...orizontal 2 60 mt Concentric Vertical 3 60 mt Twin flue 6 6 mt 4 5 Fitting the flue The top flue outlet permits both horizontal and vertical flue applications to be considered alternatively the Vok ra...

Page 10: ...o the required length you must ensure that the excess is cut from the plain end of the extension and that the inner 60mm pipe is 7 5mm longer than outer 100mm pipe Remove any burrs and check that any...

Page 11: ...on twin flue installation The flue must have a fall back of 3 back to the appliance to al low any condensate that forms in the flue system to drain via the condensate drain Consideration must also be...

Page 12: ...nection to the concentric to twin converter NOTE Before cutting twin flue pipes ensure allowances have been made for connection onto the previous piece and onto the concentric to twin converter The la...

Page 13: ...he plug or fused isolator is fitted with a 3 amp fuse 4 8 CASING REMOVAL To gain internal access to the appliance you must first remove the casing proceed as outlined below To remove the casing discon...

Page 14: ...elect the desired value B Then confirm the selection by pressing MENU B again 5 USER Your Easi Flo le water heater incorporates the very latest gas water heating technology and if cared for will give...

Page 15: ...system are open set the system s master switch to on The appliance is powered and is normally off The display shows in sequence from off to on every 2 seconds a segment of 2 digits to compose the wri...

Page 16: ...ve cleaners 5 14 What if i suspect a gas leak If you suspect a gas leak turn off the gas supply at the gas meter and contact your installer or local gas supplier If you require further advice please c...

Page 17: ...s you to reset the bo ard parameters to the factory settings Reset to factory settings Pressing the MENU B key displays two underscores Press the key until the two underscores shift up Press the key t...

Page 18: ...let test nipple Inlet test cap Light the appliance as described in 6 4 INITIAL LIGHTING and com pare the reading on the manometer with the values described in 2 2 TECHNICAL DATA If adjustement is requ...

Page 19: ...omponents will be determined by factors such as operating conditions and usage Should the appliance develop a fault the fault finding section will assist in determining which component is malfunctioni...

Page 20: ...PROCEDURE Locate and remove the screws that secure the air chamber cover Remove the air chamber cover Locate and remove the screws that secure the flue assembly Discon nect the electrical connections...

Page 21: ...e ap pliance from the electrical supply and attach a suitable manometer to the gas valve outlet test nipple SETTING THE MAXIMUM BURNER PRESSURE Light the appliance as described in 5 10 6 4 and compare...

Page 22: ...or a supply fault consult the local elec tricity supplier for advice RESISTANCE TO EARTH CHECK Isolate the appliance from the electrical supply and using a suitable multi meter carry out a resistance...

Page 23: ...djust ed remove one of the grey wires from the modulating coil Compare the reading on the manometer with the value described in 2 2 TECH NICAL DATA If adjustement is required turn the inner red cross...

Page 24: ...pressure gauge Disconnect the compensation connector 5 from the gas valve Remove the protective hood 2 Open a water tap to its maximum flow rate set the temperature selector to maximum and power up t...

Page 25: ...t High Fire m hr ft hr Burner Pressure Lo mbar Hi mbar Inlet Pressure Dynamic at Hi Fire and all other appliances running mbar Inlet water temp C Water Heater Set Temperature C Maximum Flow Rate Achie...

Page 26: ...ID No Comments Signature SERVICE 05 Date Engineer name Company name Telephone No Operative ID No Comments Signature SERVICE 07 Date Engineer name Company name Telephone No Operative ID No Comments Sig...

Page 27: ......

Page 28: ...1HG enquiries vokera co uk www vokera co uk www vokera ie Sales General Enquires T 0844 391 0999 F 0844 391 0998 Vok ra Ireland West Court Callan Co Kilkenny T 056 7755057 F 056 7755060 Vok ra Limited...

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