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Pack Contents

Zircon unvented water heater incorporating immersion heater(s) & thermal controls

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Factory fitted temperature/pressure relief valve (set at 90°C / 1 Mpa (10bar))

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Cold water combination valve assembly

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Expansion vessel & mounting bracket

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Tundish

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2 Port motorised valve (indirect models only)

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Compression nuts & olives

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Immersion heater spanner

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Installation & servicing instructions

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Guarantee card

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IMPORTANT

Please read & understand all these instructions before commencing installation.

Please leave this manual with the customer for future reference.

Zircon Installation Manual

Unvented Direct & Indirect Water Heaters
Installation & Servicing Instructions

Содержание 120zd

Страница 1: ...l mounting bracket Tundish 2 Port motorised valve indirect models only Compression nuts olives Immersion heater spanner Installation servicing instructions Guarantee card IMPORTANT Please read understand all these instructions before commencing installation Please leave this manual with the customer for future reference Zircon Installation Manual Unvented Direct Indirect Water Heaters Installation...

Страница 2: ...a guide to installation which must be carried out by a competent plumbing and electrical installer in accordance with Building Regulation G3 The Building Standards Scotland Regulations 1990 or The Building Regulations Northern Ireland NOTE Prior to installation the unit should be stored in an upright position in an area free from excessive damp or humidity THE BENCHMARK SCHEME Benchmark places res...

Страница 3: ...nd can be satisfactorily met Note A high mains water pressure will not always guarantee high flow rates Wherever possible the mains supply pipe should be 22mm We suggest the minimum supply requirements should be 0 15MPa 1 5 bar pressure and 20 litres per minute flowrate However at these values outlet flow rates may be poor if several outlets are used simultaneously The higher the available pressur...

Страница 4: ...mittent Situations where it is not possible to safely pipe away any discharge from the safety valves In areas where the water consistently contains a high proportion of solids e g suspended matter that could block the strainer unless adequate filtration can be ensured In areas where the water supply contains chloride levels that exceed 250mg l OPERATIONAL SUMMARY Maximum mains pressure 1 6MPa 16 b...

Страница 5: ...he drain tap outlet spigot EXPANSION VESSEL The expansion vessel accommodates expansion that results from heating the water inside the unit The expansion vessel is pre charged at 0 35MPa 3 5 bar The expansion vessel must be connected between the expansion valve and the cylinder see Fig 6 Page 10 The location of the expansion vessel should allow access to recharge the pressure as and when necessary...

Страница 6: ...rom cold through 45 C Table 2 Dimensions and performance Type Model Reference Dimensions mm Primary Flow ltrs min 80 C 2 C Coil Rating kW Heat up Time mins Hot Water Capacity ltrs volume of water drawn off 40 C A B Indirect 120zi 930 615 15 12 5 29 104 150zi 1114 800 15 12 5 37 138 5 170zi 1240 925 15 15 35 156 5 210zi 1498 1184 15 15 43 196 250zi 1752 1378 15 18 43 227 300zi 2067 1693 15 19 49 24...

Страница 7: ...ackage Tundish 3 54 The tundish should be vertical located in the same space as the unvented hot water storage system and be fitted as close as possible to and lower than the valve with no more than 600mm of pipe between the valve outlet and the tundish see Diagram 1 Note To comply with the Water Supply Water Fittings Regulations the tundish should incorporate a suitable air gap 3 55 Any discharge...

Страница 8: ...d to prevent contact whilst maintaining visibility and c discharges at high level e g into a metal hopper and metal downpipe with the end of the discharge pipe clearly visible or onto a roof capable of withstanding high temperature discharges of water and 3m from any plastic guttering system that would collect such discharges 3 63 The discharge would consist of high temperature water and steam Asp...

Страница 9: ...H ELBOW OR BEND G 1 2 15MM 22mm 28mm 35mm UP TO 9M UP TO 18M UP TO 27M 0 8M 1 0M 1 4M G 3 4 22MM 28mm 35mm 42mm UP TO 9M UP TO 18M UP TO 27M 1 0M 1 4M 1 7M G 1 28MM 35mm 42mm 54mm UP TO 9M UP TO 18M UP TO 27M 1 4M 1 7M 2 3M Fixed grating Discharge below fixed grating Building Regulation G3 section 3 61 gives alternative points of discharge Trapped gully Discharge pipe D2 from tundish with continuo...

Страница 10: ...ETS MAINS WATER SUPPLY ISOLATING VALVE NOT SUPPLIED TUNDISH DISCHARGE PIPE DRAIN COCK NOT SUPPLIED PRIMARY RETURN PRIMARY FLOW ELEMENT CONTROLS HOUSING INLET SECONDARY RETURN TAPPING IF REQUIRED NOT SUPPLIED COLD WATER COMBINATION VALVE 2 PIECE BALANCED COLD WATER CONNECTION IF REQUIRED ...

Страница 11: ...able fuse and double pole isolating switch with a contact separation of at least 3mm in both poles The immersion heater s should be wired in accordance with Fig 7 The immersion heaters MUST be earthed The supply cable should be 1 5mm2 3 core HOFR sheathed and must be routed through the cable grip provided with the outer sheath of the cable firmly secured by tightening the screws on the cable grip ...

Страница 12: ... hot water draw off points Discharge pipework from valve outlets to tundish Connection to the primary circuit All connections are 22mm compression However 3 4 BSP parallel threaded fittings can be fitted to the primary coil connections if required BOILER SELECTION The boiler should have a control thermostat and non self resetting thermal cut out and be compatible with unvented storage water heater...

Страница 13: ...13 Fig 9 Schematic wiring diagram Basic 2 x 2 port valve system Fig 10 Schematic wiring diagram 3 port mid position valve system N B Must be used in conjunction with 2 port zone valve supplied ...

Страница 14: ... temperature range of 12 C to 68 C Check the operation of thermostat s and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle INDIRECT UNITS Fill the indirect primary circuit following the boiler manufacturer s commissioning instructions To ensure the cylinder primary heat exchanger is filled the 2 port motorised valve supplied sh...

Страница 15: ...mostat s and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle INDIRECT UNITS Open the cover s to the immersion heater housing s and disconnect wiring from immersion heater s thermostat s Remove thermostat by carefully pulling outwards Remove thermostat capillary sensors from the pockets on the immersion heater Unscrew immersion ...

Страница 16: ... and thermal cut out is provided for each immersion heater The thermostat is factory set to give a water storage temperature of approx 55 C to 60 C Access to the thermostat can be made by opening the immersion heater cover DISCONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER S Temperature adjustment is made by inserting a flat bladed screwdriver in the slot on the adjustment disc on top of th...

Страница 17: ...y No hot water flow Mains supply off Check and open stop cock Strainer blocked Turn off water supply Remove strainer and clean Cold water combination valve incorrectly fitted Check and refit as required Water from hot tap is cold Direct immersion heater not switched on Check and switch on Direct immersion heater thermal cut out has operated Check reset by pushing button on thermostat Indirect prog...

Страница 18: ...ut out 95 612 717 10 Solar thermal cut out 95 612 698 11 6 Way terminal block 95 607 933 12 3 Way terminal block 95 607 932 13 Terminal cover 95 614 095 14 Temperature Pressure relief valve 95 605 810 15 Tundish 95 605 838 16 Expansion valve complete 0 6MPa 6 Bar 95 607 030 17 Cold water combination valve complete 95 605 047 18 Motorised 2 port valve 95 605 049 19 Accessory Kit Indirect without ex...

Страница 19: ... they should be disposed of at a Local Authority Recycling Centre in order to realise the full environmental benefits Insulation is by means of an approved CFC HCFC free polyurethane foam with an ozone depletion factor of zero HEAT LOSS ENVIRONMENTAL Nominal Capacity Litres Standing Heat Loss per day kWh 24h per year kWh 365d 120 1 47 537 150 1 70 621 170 1 92 701 210 2 10 767 250 2 22 811 300 2 5...

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Страница 24: ... Elson s very own service division With us on your side you can be sure that your customers are in the very best of hands Totally committed to quality and safety heateam is open 7 days a week for 363 days a year and offers Dedicated Trade Advice Line our helpful and qualified specialists are always on hand to help you with even the most complex technical query Installer Priority Call Outs our 280 ...

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