UNVENTED MAINS PRESSURE WATER HEATER 100, 120, 150, 170, 210, 250 and 300 LITRE CAPACITY DIRECT AND INDIRECT MODELS INSTALLATION AND SERVICING INSTRUCTIONS IMPORTANT: PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE COMMENCING INSTALLATION. PLEASE LEAVE THIS MANUAL WITH THE CUSTOMER FOR FUTURE REFERENCE.
Introduction Contents Introduction.......................................... 2 GENERAL REQUIREments........................... 3 Installation – General . ........................ 4 INSTALLATION - DISCHARGE ...................... 7 Installation - DIRECT UNITS................... 10 Installation - INDIRECT UNITS............... 11 Commissioning...................................... 13 Maintenance........................................... 14 User Instructions..................................
GENERAL REQUIREments IMPORTANT: THIS APPLIANCE IS NOT INTENDED FOR THE USE BY PERSONS (INCLUDING CHILDREN) WITH REDUCED PHYSICAL, SENSORY OR MENTAL CAPABILITIES, OR LACK OF KNOWLEDGE AND EXPERIENCE, UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTION CONCERNING THE USE OF THE APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR SAFETY.
Installation – General LIMITATIONS The PremierPlus cylinder should not be used in association with any of the following: • Solid fuel boilers or any other boiler in which the energy input is not under effective thermostatic control, unless additional and appropriate safety measures are installed. • Ascending spray type bidets or any other class 1 back syphonage risk require that a type A air gap be employed. • Steam heating plants unless additional and appropriate safety devices are installed.
below the level of the heater (this can be achieved by attaching a hose to the 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 3.5 bar. The expansion vessel must be connected between the expansion valve (see Fig. 2, page 4) and the PremierPlus cylinder (see Fig. 6, page 10).
Fig.
INSTALLATION - DISCHARGE It is a requirement of Building Regulation G3 that any discharge from an unvented system is conveyed to where it is visible, but will not cause danger to persons in or about the building. The tundish and discharge pipes should be fitted in accordance with the requirements and guidance notes of Building Regulation G3. The G3 Requirements and Guidance section 3.50 - 3.63 are reproduced in the following sections of this manual.
(D2) to be connected. discharge. 3.60 The discharge pipe should not be connected to a soil discharge stack unless it can be demonstrated that that the soil discharge stack is capable of safely withstanding temperatures of the water discharged, in which case, it should: From Table 3, page 9: Maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from a G1/2 temperature relief valve is 9.0m. Subtract the resistance for 4 No. 22mm elbows at 0.8m each = 3.
VALVE OUTLET SIZE MINIMUM SIZE OF DISCHARGE PIPE D1 MINIMUM SIZE OF DISCHARGE PIPR D2 FROM TUNDISH MAXIMUM RESISTANCE ALLOWED, EXPRESSED AS A LENGTH OF STRAIGHT PIPE (I.E. NO ELBOWS OR BENDS) 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 G1 28mm 35mm 42mm 54mm UP TO 9M UP TO 18M UP TO 27M 1.4M 1.7M 2.
To hot outlets T&P relief valve Expansion vessel Balanced cold water connection (if required) Cold water combination valve Boost element/ control housing (PP120E to PP300E models only) Isolating valve (not supplied) Mains water supply Element/ controls housing Secondary return tapping (if required) Primary return Primary flow NOTE: Primary heating coil fitted on PP100B to PP300B models only Inlet Drain cock (not supplied) Tundish Discharge pipe Fig.
SAFETY DISCONNECT FROM THE MAINS SUPPLY BEFORE REMOVING ANY COVERS. Never attempt to replace the immersion heater(s) other than with the recommended PremierPlus immersion heater(s). DO NOT BYPASS THE THERMAL CUT-OUT(S) IN ANY CIRCUMSTANCES. Ensure the two male spade terminations on the underside of the combined thermostat and thermal cut-out are pushed firmly onto the corresponding terminations on the element plate assembly.
Premier Plus terminal block 2 1 3 3 Zone valve (HTG) Room stat Zone valve (DHW) (supplied) G Br Bl 0 GY 1 3 2 G Br Bl 0 2 1 1 2 3 L (Supply) N 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 HTG ON L N DHW ON Programmer Junction box L 2 3 1 2 3 L N 2 2 3 N Boiler Pump NOTES: Control terminal numbering may differ from those shown. Refer to instructions with controls selected. A double pole isolating switch must be installed in the mains supply.
Commissioning DIRECT UNITS At the time of commissioning, please ensure all relevant sections of the Benchmark Checklist, (Page 22 and 23) of this document, are completed. FILLING THE UNIT WITH WATER • Check expansion vessel pre-charge pressure. The vessel is supplied precharged to 3.5 bar to match the control pressure of the pressure reducing valve. The precharge pressure is checked using a car tyre gauge by unscrewing the plastic cap opposite the water connection.
Maintenance MAINTENANCE REQUIREMENTS Unvented hot water systems have a continuing maintenance requirement in order to ensure safe working and optimum performance. It is essential that the relief valve(s) are periodically inspected and manually opened to ensure no blockage has occurred in the valves or discharge pipework. Similarly cleaning of the strainer element and replacement of the air in the expansion vessel will help to prevent possible operational faults.
User Instructions WARNINGS IF WATER ISSUES FROM THE TEMPERATURE/PRESSURE RELIEF VALVE ON THE PREMIERPLUS CYLINDER SHUT DOWN THE BOILER. DO NOT TURN OFF ANY WATER SUPPLY. CONTACT A COMPETENT INSTALLER FOR UNVENTED WATER HEATERS TO CHECK THE SYSTEM. DO NOT TAMPER WITH ANY OF THE SAFETY VALVES FITTED TO THE PREMIERPLUS SYSTEM. IF A FAULT IS SUSPECTED CONTACT A COMPETENT INSTALLER.
Fault Finding & Servicing IMPORTANT • After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on page 22 and 23 of this document. • Servicing should only be carried out by competent persons in the installation and maintenance of unvented water heating systems. • Any spare parts used MUST be authorised Santon parts. • Disconnect the electrical supply before removing any electrical equipment covers.
SPARE PARTS A full range of spare parts are available for the PremierPlus range. Refer to the Techincal Data label on the unit to identify the model installed and ensure the correct part is ordered. DESCRIPTION PART NO.
HEAT LOSS Nominal Capacity (Litres) ENVIROMENTAL Standing Heat Loss per day (kWh/24h) per year (kWh/365d) 100 1.14 416.1 120 1.25 456.3 150 1.45 529.3 170 1.63 595.0 210 1.91 697.2 250 2.22 810.3 300 2.52 919.8 Table 6: Standing heat losses (based on an ambient air temperature of 20°C and a stored water temperature of 65°C) 18 Products are manufactured from many recyclable materials.
GUARANTEE WARNING: Should the factory fitted temperature and pressure relief valve be tampered with or removed your guarantee will be invalidated. Neither the Distributor nor Manufacturer shall be responsible for any consequential damage howsoever caused. Guarantee Terms Santon guarantees the PremierPlus against faulty manufacture or materials for a period of 2 year from the date of purchase including parts and labour.
notes: 20
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Spares Stockists Electric Water Heating Co. 2 Horsecroft Place Pinnacles Harlow Essex CM19 5BT Tel: 0845 0553811 E-Mail: sales@ewh.co.uk SPD Special Product Division Units 9 & 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB40 0TY Tel: 0208 5730574 Parts Center Network 65 Business Park Bentley Wood Way Burnley Lancashire BB11 5ST Tel: 01282 834403 www.partscenter.co.
