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                                                                                                                                                36                                                                                                         ©ESP Ltd. Sept 2008 

Appendix 2 

Product Specification Sheet

 

TPR15 Pressure and Temperature Relief Valves

 

A compact, cartridge type pressure and temperature safety relief valve for use 
on unvented hot water systems. 
 

Product Features and Benefits 
 

• 

Fully approved 

by WRAS 

for use on unvented hot water systems. 

• Available in a 

wide range of relief pressures 

between 4.0 and 10 bar. 

• 

Provides  protection 

to  EN1490  from  the  dangerous  build  of  pressure 

which can be caused by overheating within an unvented hot water system. 

• 

Cartridge construction 

of the pressure relief function and silicone rubber 

seals provide a 

long lifespan and easy servicing. 

• PTFE impregnated inlet threads for 

faster, easier installation. 

• Integrated twist top lifting mechanism to check the valve functionality.

 

TPR15 Pressure and Temperature Relief Valves 

Uses 

Summary of Contents for 400-200Ltr

Page 1: ...ESP Ltd Sept 2008 Operation Installation Manual The ESP Ecocent Model ESP 400 200Ltr ESP 400 250Ltr ESP 400 300Ltr Please keep this manual safely and read it carefully before installation or operation...

Page 2: ...staller who has suc cessfully completed a recognised course in the installation of un vented heating systems such as CITB Failure to prop erly fit the unit may affect its efficiency and invalidate any...

Page 3: ...d the unit MUST be left upright for at least 90 mins in the planned installation position before being installed Failure to do this may cause serious damage to the unit during and following installati...

Page 4: ...bination Valve comprises Pressure Reducing Valve Strainer and Check Valve Expansion Core Unit comprises Check Valve and Expansion Valve Temperature Pressure Relief Valve set at 90 95 C 1 Mpa 7bar Tund...

Page 5: ...the unit war ranty guarantee All fittings must be WRAS approved 1 General Requirements Hot water air source heat pump Hot water air source heat pump 1 General Requirements 1 4 OUTLET TERMINAL FITTINGS...

Page 6: ...r for start and stop and an adjustment dial for easy setting of the water temperature the unit can take heat from a number of sources the outside environment from an attic space or from hot areas in l...

Page 7: ...D Heating capacity kW 2 6 2 6 2 6 2 6 Water tank capacity L 150 200 250 300 Power input W 810 810 810 810 Running current A 3 7 3 7 3 7 3 7 Power supply V PH 220 1 50 220 1 50 220 1 50 220 1 50 Compr...

Page 8: ...icated electronic devices do not fill the heating system with water from lake river water or groundwater and be sure to put an inline strainer and scale inhibitor in the cold water feed failure to do...

Page 9: ...e Cold Water Combination Valve supplied with the unit incorporates a full flow isolating valve which will enable the unit to be isolated from the mains supply for maintenance or servicing To close the...

Page 10: ...ixer valve this may be tee d off the supply to the unit immediately after the Cold Water Combination Valve see Figure 4 Branches to drinking water out lets should be taken before the valve to avoid th...

Page 11: ...CULATION If a secondary circulation system is required it should be installed as per Fig ure 6 The secondary return pipe should be in 15mm pipe and incorporate a check valve to prevent backflow A suit...

Page 12: ...m in which the unit is incorporated and it should discharge in to the tundish The Expan sion vessel can be fitted to the cold feed in to the unit see Figures 4 and 6 G3 REQUIREMENT there shall be prec...

Page 13: ...s practically difficult there should be clear visibility at one or other of these locations Examples of acceptable discharge arrangements are i ideally below a fixed grating and above the water seal i...

Page 14: ...a refrigerant fill be required at any point please note the following When you have finished the connection between the heat pump and the hot water unit you must create a vacuum in the hot water unit...

Page 15: ...treatment As per the below picture you must insulate all connecting pipes and you must use good quality non flammable PVC insulating material of 15mm 20mm thickness a To keep the pipes in a tidy stat...

Page 16: ...should be routed through the aperture in the terminal cover and se cured using cable grips The Indirect Thermal Cut out MUST NOT be by passed 4 15 UNIT SYSTEM CONTROLS The controls either supplied wit...

Page 17: ...lating air mode picture 12 Room air can be extracted from a storage room or a wine cellar subsequently cooled and dehumidified in the heat pump and finally re introduced into the room Recreation rooms...

Page 18: ...e operation of the temperature pressure relief and expansion valves by lifting turning the manually operated test lever cap and observing that water flows through freely and safely to waste 9 Turn on...

Page 19: ...open the Temperature and Pressure Relief Valve by twisting its cap for a few seconds Check water is discharged and that it flows freely through the tundish and discharge pipework Check valve reseats...

Page 20: ...the backnut is tightened Replace the thermostat s by carefully plugging the two male spade terminations on the underside of the thermostat head into the corresponding terminations on the element Rewir...

Page 21: ...hort circuit Check and replace the temp sensor for the evaporator inlet Elec Heater temp sensor failure PP4 4 on 1 off The temp sensor is open or short circuit Check and replace the temp sensor for th...

Page 22: ...22 ESP Ltd Sept 2008 7 User Instructions 7 1 FUNCTION OF THE CONTROLLER Use of controller is as follows 6 9 2 The Cylinder Hot water air source heat pump Hot water air source heat pump 6 Maintenance...

Page 23: ...g running or standby state press or to check the related pa rameters with the screen showing as follows 5 Check and change the set parameters Note you can check and change the set parameters during st...

Page 24: ...se use the unit for the purpose intended and be sure to read understand and follow the provisions of this manual These units can cause serious damage to property and people if installed used improperl...

Page 25: ...PERATION WARNING MOVE AND REPAIR OPERATION ATTENTION Hot water air source heat pump Hot water air source heat pump IMPORTANT The unit warranty guarantee will be invalidated if all work on install ing...

Page 26: ...some water v It has not been installed in a location liable to be subjected to frost nor has it been tampered with or been subjected to misuse or neglect vi No factory fitted parts have been removed f...

Page 27: ...the units that it supplies We strive to ensure that spare parts are readily avail able at competitive prices Please call us should you need any spare parts and we will be pleased to give you a quotat...

Page 28: ...n a growing trend to wards the installation of Unvented Systems in the UK which will continue to rise at an increasing rate How the Unvented System Works The basic difference between the high pressure...

Page 29: ...tilised for loft conversions Aesthetic looks white goods casing Householder Benefits Superior performance ensures constant high flow rates at all outlets and allows rapid filling of baths Balanced pre...

Page 30: ...benefits features and controls associated with Unvented Systems but has a limited storage capacity of hot water Ideally the mains supply pressure to the prem ises should be a minimum of 2 Bar to ensur...

Page 31: ...Expansion Valve protects unit from over pressure caused by failure of pres sure reducing valve failure of expansion vessel or loss of internal air bubble Originally supplied as separate components Rel...

Page 32: ...stainless steel seat version for the exclusive use of one Unvented Systems manufac turer proving Reliances commitment to continual development to offer the best available control package Inlet Control...

Page 33: ...estic Unvented Systems are supplied in a white finish to com pliment the white goods image of the Unvented unit All potable Expansion Vessels with a nominal capacity of 16 litres or greater incorporat...

Page 34: ...ve Developed following the demands of manufacturers for a more aesthetic modern design to compliment the white goods image of today s unvented units the twist top valve is now becoming the standard fi...

Page 35: ...t Expansion Valve cartridge and seat the unique design enables damaged valves to be refurbished in situ without need for their removal Problems and Remedial Action All manufacturers of Unvented System...

Page 36: ...able in a wide range of relief pressures between 4 0 and 10 bar Provides protection to EN1490 from the dangerous build of pressure which can be caused by overheating within an unvented hot water syste...

Page 37: ...fore reducing the pressure inside the cylinder If the water pressure in creases without temperature increase the valve will stay closed until the set pressure of the relief mechanism is reached at whi...

Page 38: ...opriate range code Guarantee All Reliance products undergo strict performance tests prior to despatch and are guaranteed against faulty materials and workmanship for one year from the date of purchase...

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