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Indirect
INSTALLATION MANUAL V1 2020
UK CYLINDERS INDIRECT UNVENTED HOT WATER
CYLINDER WITH EXTERNAL EXPANSION VESSEL
IMPORTANT
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
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Table of Contents
Summary of Contents for UK CYLINDERS 175006
- Page 1 CYLINDER WITH EXTERNAL EXPANSION VESSEL IMPORTANT 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...
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Page 2: Component Listing
It is highly insulated with environmentally friendly foam, and enclosed in a rust resistant outer steel case. The UK Cylinders Indirect Indirect is an indirectly heated unvented hot water storage cylinder as defined under the current ErP Directive and available in eight sizes from 60-300litres. -
Page 3: Siting The Unit
10 bar, an additional upstream pressure reducing device should be fi tted in addition to the cold water inlet set provided by UK Cylinders. The mains supply pipe-work should be a minimum of 22mm. This could warrant the replacement of any existing 1/2”... -
Page 4: General Installation And Commissioning
GENERAL INSTALLATION AND COMMISSIONING PLEASE NOTE - THE WATER CONNECTION BOSSES AND THE OLIVES & GLAND NUTS SUPPLIED AS STANDARD ON THIS UK CYLINDERS INDIRECT ARE 3/4” BSP. COLD MAINS PIPEWORK The cold mains pipework should be a minimum of 22mm, through to the cylinder installation to ensure that hot water flow requirements for taps and shower heads are met. -
Page 5: Hot Water Pipework
Keep the hot draw off pipework to a minimum to maximise the transfer speed of hot water from cylinder to outlet. UK Cylinders would advise against soldering tappings immediately to the hot water drawoff, as this reduces any inherent risk of flux landing on the immersion heater and causing long-term corrosion to the connection and unit. - Page 6 WIRING - 3kW Our 3kW immersion heaters MUST be wired in 2.5mm heat resistant cable, as failure to do so can cause nuisance tripping. We will be unable to support your installation until this has been corrected. For alternate higher wattage immersion heaters, consult the instructions supplied with the device. COMMERCIAL/HEAVY DUTY USE For commercial/heavy duty installations with constant usage/reheat requirements or where an external programmer designed for immersion heaters is not present then Titanium immersion heaters must be fitted...
- Page 7 • The pipe must be at least one pipe size larger than the nominal outlet size of the safety device (unless its total equivalent hydraulic resistance exceeds that of a straight pipe 9m long i.e. discharge pipes between 9m and 18m equivalent resistance length should be at least two sizes larger than the nominal outlet size of the safety device, between 18 and 27m at least 3 times larger and so on.) Bends must be taken into account in calculating the fl ow resistance.
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Page 8: Control Thermostat
CONTROL THERMOSTAT The non-solar UK Cylinders Indirect indirect cylinders come provided with a mechanical control dual cylinder thermostat. This adjustable safety component can be changed by the end user to keep the hot water in the cylinder stored at any value between 25°C-65°C. As well as being a thermostatic control, the stat also functions as a heat source isolation safety device with the included 2-port zone valve in the event of overheating, and should be installed as per the wiring diagrams set out in this manual. -
Page 9: Colour Codes
TYPICAL WIRING - S PLAN, SINGLE ZONE 2-PORT VALVE (HEATING) DUAL CYLINDER STAT 2-PORT VALVE (DHW) O G/Y O G/Y PUMP WIRING CENTRE ROOM STAT PROGRAMMER BOILER TYPICAL WIRING - Y PLAN 3-PORT VALVE DUAL CYLINDER STAT 2-PORT SAFETY VALVE O G/Y O G/Y PUMP... - Page 10 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...
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Page 11: Service And Maintenance
SERVICE AND MAINTENANCE • Servicing 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. - Page 12 CYLINDER FAULT FINDING PROBLEM POSSIBLE CAUSE REMEDIATIVE ACTION Potential discharge from T&P valve Follow tundish/T&P fault finding Potential discharge from Expansion relief Follow inlet control set fault finding valve due to fault at PRV Water is visible at tundish Check all cold connections into mixer outlets are fed from the balanced cold Back pressure from system service from the inlet control valve.
- Page 13 INLET CONTROL SET FAULT FINDING TUNDISH FAULT FINDING...
- Page 14 TEMPERATURE & PRESSURE RELIEF VALVE FAULT FINDING DUAL THERMOSTAT FAULT FINDING...
- Page 15 IMMERSION HEATER FAULT FINDING ENERGY CUTOUT FAULT FINDING...
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Page 16: All Systems
MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST This commissioning checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations, and then handed to the customer to keep for future reference. - Page 17 SERVICE RECORD It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.
- Page 18 GUARANTEE AND EXEMPTIONS The cylinder carries a 25-year guarantee against faulty materials or manufacturing, based upon the following conditions: • Correct installation as per this document and all relevant standards, regulations, and codes of practice in force at the time. •...
- Page 19 Company agent and the proceeds of such sale :- “Company” means UK Cylinders. 6.6.1 shall be held in trust for us in a manner which enables such proceeds to be identified as such, and : “Conditions” means the terms and conditions of sale set out in this document and any special terms and conditions agreed in 6.6.2 shall not be mixed with other monies nor paid into an overdrawn bank account.
- 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...