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Indirect

UK CYLINDERS INDIRECT UNVENTED HOT WATER 

CYLINDER WITH EXTERNAL EXPANSION VESSEL

INSTALLATION MANUAL V1 2020

The UK Cylinders range of water heaters and unvented water storage cylinders should only be 

installed as per these instructions by a competent & certifi ed heating installer. By 

installing this product you agree to be bound by the purchasing and warranty terms and 

conditions found in this manual and on our website at www.ukcylinders.co.uk

IMPORTANT

Summary of Contents for 175006

Page 1: ...ers range of water heaters and unvented water storage cylinders should only be installed as per these instructions by a competent certified heating installer By installing this product you agree to be bound by the purchasing and warranty terms and conditions found in this manual and on our website at www ukcylinders co uk IMPORTANT ...

Page 2: ...te compliance with Building Regulations and should be provided to the customer for future reference Installers are required to carry out installation commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the scheme Visit www centralheating co uk for more information COMPONENT LISTI...

Page 3: ...eed WATER SUPPLY We recommend that the maximum on site water demand be assessed and the water supply be tested to ensure it meets the following requirements This should be sourced from mains water only your warranty does NOT include the use of wells or bore holes as a water supply It must be noted that a high mains water pressure does NOT always guarantee a high flow rate Ensure a working not stat...

Page 4: ...ion to the wall using the provided bracket and connect the pipework to the expansion vessel connection provided on the cold water inlet set There must be no obstruction or flow restriction between the cylinder and the expansion vessel You must ensure that the cylinder does not fill to a pressure of greater than 3 0bar If there are to be any showers bidets or monobloc taps in the installation or wh...

Page 5: ... qualified electrician in accordance with latest I E E regulations Ensure the electrical supply is isolated before working on the system The electrical supply to each immersion heater must be fused at 13A via a double pole isolating switch with a separation of at least 3mm to both poles to BS 3456 The cable must be 2 5mm 2 heat resistant 85 C HOFR sheathed flex complying to BS6141 1981 Table 8 Do ...

Page 6: ...are available The O ring on the head of the immersion heater should be correctly positioned and lubricated with a WRAS approved silicon lubricant before fitting Screw in by hand until almost sealed and then gently finish tightening as the O rings will seal easily Remake the wiring connection as per instructions provided INSULATION OF THE TEMPERATURE PRESSURE RELIEF VALVE Components for insulating ...

Page 7: ...ible termination point or onto a roof capable of withstanding high temperature discharge at least 3m away from any plastic guttering Building Regulation G3 allows non metallic pipework within the tundish discharge D2 The discharge pipe D2 should be made of a metal or b another material that has demonstrated it can safely withstand high temperature water discharges and is clearly and permanently ma...

Page 8: ...rrupt the power supply to the solar pump or controller in the event of excessive temperature In systems where the cylinder is above the panels then the energy cutout should be wired to a suitable 2 port valve not supplied on the return pipework to the solar panel LOWER COIL NON SOLAR This is connected to the additional boiler as per the instructions for a single coil cylinder with the high limit t...

Page 9: ...2 3 E E E 2 2 1 C C SL Br Bl G O G Y Br Bl G O G Y HTG ON DHW ON DHW OFF TYPICAL WIRING S PLAN SINGLE ZONE TYPICAL WIRING Y PLAN COLOUR CODES W WHITE G GREEN Bl BLUE G Y GREEN YELLOW Br BROWN L LIVE N NEUTRAL C COMMON SL SWITCH LIVE E EARTH 9 2 PORT VALVE HEATING DUAL CYLINDER STAT 2 PORT VALVE DHW WIRING CENTRE ROOM STAT PROGRAMMER BOILER PUMP 3 PORT VALVE DUAL CYLINDER STAT 2 PORT SAFETY VALVE W...

Page 10: ... ON DHW OFF 11 11 12 12 1 2 3 Br Bl G O G Y N 1 2 3 E HTG 2 ON 12 TYPICAL WIRING S PLAN TWIN ZONE COLOUR CODES W WHITE G GREEN Bl BLUE G Y GREEN YELLOW Br BROWN L LIVE N NEUTRAL C COMMON SL SWITCH LIVE E EARTH 10 DUAL CYLINDER STAT 2 PORT VALVE DHW WIRING CENTRE ROOM STAT PROGRAMMER BOILER PUMP 2 PORT VALVE HEATING 2 2 PORT VALVE HEATING 1 ROOM STAT ...

Page 11: ...vicing must be carried out annually by competent installers Any spares used must be purchased from UK Cylinders Safety devices must not be bypassed Do not use the unit if safety features are not fully operational Proof of annual servicing is required to avoid invalidating your manufacturer s guarantee Upon installation of the unit the installer must complete the accompanying commissioning certific...

Page 12: ...cking Strip clean PRV inline filter or replace inlet control set No hot water available Possible immersion heater failure Follow immersion heater fault finding EXPANSION VESSEL FAULT FINDING PROBLEM POSSIBLE CAUSE REMEDIATIVE ACTION Discharge of water from relief valve into tundish Expansion Vessel is undersized Vessel needs resizing and installing by a qualified heating engineer Pre charge set in...

Page 13: ...13 INLET CONTROL SET FAULT FINDING TUNDISH FAULT FINDING ...

Page 14: ...14 TEMPERATURE PRESSURE RELIEF VALVE FAULT FINDING DUAL THERMOSTAT FAULT FINDING ...

Page 15: ...IMMERSION HEATER FAULT FINDING ENERGY CUTOUT FAULT FINDING 15 ...

Page 16: ... has a water scale reducer been fitted Yes No What type of scale reducer has been fitted _______________________________________________________________________ What is the hot water thermostat set temperature C What is the maximum hot water flow rate at set thermostat temperature measured at high flow outlet l min Time and temperature controls have been fitted in compliance with Part L of Buildin...

Page 17: ... Number ___________________________________ Comments __________________________________________ ___________________________________________________ ___________________________________________________ Signature ___________________________________________ SERVICE 6 Date______________________________________ Engineer Name ______________________________________ Company Name ___________________________...

Page 18: ...ted in full at the time when the faulty part unit is returned to us We will not cover any installer claims for excessive travelling where the installer has accepted a job more than 30 miles from their base of operations Removal costs cannot be recovered for the collection of a faulty unit from a difficult to reach area or where cylinder access has been restricted as per this manual guidance Claims...

Page 19: ... third parties in the normal course of business In this respect the Buyer shall act in the capacity of the Companies commission agent and the proceeds of such sale 6 6 1 shall be held in trust for us in a manner which enables such proceeds to be identified as such and 6 6 2 shall not be mixed with other monies nor paid into an overdrawn bank account The Company as principal shall remunerate the Bu...

Page 20: ...UK Cylinders Limited Unit 3 RCM Business Centre Sandbeds Trading Estate Dewsbury Rd Ossett WF5 9ND Tel 03330 329650 Email sales ukcylinders co uk ...

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