Summary of Contents for GEMTEX Heating Solutions Ltd GTX 500
- Page 1 H E A T I N G S O L U T I O N S L T D GTX manual 01256 587 800 info @ gemtex.co.uk www.gemtex.co.uk...
- Page 2 H E A T I N G S O L U T I O N S L T D...
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Page 3: Table Of Contents
Unvented kit 28mm for 200/300 litre Unvented kit 1¼” for 500 litre Tundish requirements Electrical Diagram GTX 150, 200 and 300 Electrical Diagram GTX 500 Hot water temperature control via boiler with electronic regulation Hot water temperature control with mechanical thermostat Commissioning... -
Page 4: Presentation
2. Range Model Capacity Litres GTX 150 GTX 200 GTX 300 GTX 500 3. Technical Specifications GEMTEX Capacity Exchange Coil Power Primary... -
Page 5: Dimensions
4. Dimensions info @ gemtex.co.uk www.gemtex.co.uk... -
Page 6: Connection Details And Components
5. Connection Details and Components 6. Installation Instructions The appliance must be installed and maintained by a Check that the primary circuit pressure (exchanger) does not qualified certified professional who is approved to install exceed 8 bars or the maximum acceptable boiler pressure if unvented hot water tanks, according to current statutory this is less than 8 bars. - Page 7 6. Installation Instructions Models GTX 150 GTX 200 GTX 300 GTX 500 Operating Pressure 3.5 bar 3.5 bar 3.5 bar 3.5 bar Max Water Supply Pressure to unvented kit 12 Bar Expansion relief Setting 6 Bar Nominal Capacity Pressure and Temperature relief valve 7 Bar/90°C...
- Page 8 6. Installation Instructions Important Notice From table The safety shut off zone valve is an important safety Maximum resistance allowed for a straight length of 22mm device of the unvented GTX tank and must be installed. copper discharge pipe (D2) from a G 1/2 temperature relief Fit the valve to the flow pipework from the boiler valve is 9.0m.
- Page 9 6. Installation Instructions Function It is recommended that isolating valves are installed upstream Pressure reducing valves (PRV) are installed in domestic water and downstream to facilitate any future maintenance. systems to reduce and stabilise the inlet pressure from the mains supply, which is generally too high and variable for Install the PRV and manifold with the embossed arrow domestic appliances to function properly.
- Page 10 6. Installation Instructions Calibration Close the downstream isolating valve. Cap Unscrew the cap and using an Allen key adjust the outlet pressure by turning the calibration screw in the centre of the cover. Calibration Screw Rotate it clockwise to increase the outlet pressure and anticlockwise to reduce it.
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Page 11: Unvented Kit 22Mm For 150 Litre
7. Unvented kit 22mm Unvented kit Safety zone valve Expansion vessel Expansion vessel connection Tundish Vessel connection hose Bracket and fixings Blank plug for unused connection Kit fully assembled info @ gemtex.co.uk www.gemtex.co.uk... -
Page 12: Unvented Kit 28Mm For 200/300 Litre
8. Unvented kit 28mm Unvented kit Safety zone valve Expansion vessel – 200 litre tank Expansion vessel – 300 litre tank Bracket and fixings (3a only) Tundish Vessel connection hose Blank plug for unused connection Kit fully assembled 1 0 G E M T E X H E A T I N G S O L U T I O N S L T D... -
Page 13: Unvented Kit 1¼" For 500 Litre
9. Unvented kit 1 ¼” In order of assembly: Non return valve for unvented kit Pressure reducing valve for unvented kit Pressure gauge for unvented kit Pressure relief valve for unvented kit Vessel connection hose Expansion vessel Safety zone valve Tundish Connecting nipples Blank plug for unused connection... -
Page 14: Tundish Requirements
10. Tundish requirements Please see drawing number GT-ST-02 from section 5 and the alternative drawing below when there is no other option but to use a HepvO trap. This drawing has to be read in conjunction with the full installation manuals supplied 1 22 mm copper discharge pipe 2 Tundish –... -
Page 15: Electrical Diagram Gtx 150, 200 And 300
12. Electrical diagram for the GTX 500 The control panel is pre-wired for the mains power supply for the immersion which is the large core cable and a smaller core cable for the safety shut off zone valve. -
Page 16: Hot Water Temperature Control Via Boiler With Electronic Regulation
13. Hot water temperature control via boiler with electronic regulation The sensor pocket item 5 on drawing number GT-ST-01 shown in section 4 on page 4. The sensor pocket is used in conjunction with heat sink compound to get a good heat transfer to the sensor. -
Page 17: Commissioning
15. Commissioning 16. Maintenance BEFORE COMMENCING ANY MAINTENANCE WORK, • Check all pipe connections for tightness. Close drain cock. ISOLATE ALL MAINS ELECTRICITY SUPPLIES TO • Check pressure(s) in expansion vessel(s) 3.5 bar. Recharge THE SYSTEM if necessary. The tank and unvented Kit should be inspected annually. •... -
Page 18: Parts List
Every two years, the following additional maintenance 14. PV33W – litre expansion vessel for GTX 300 should also be carried out after draining down. 15. PV50W – litre expansion vessel for GTX 500 • Remove Electric Immersion Heater cover. 16. G-133-3008 – 150 litre unvented kit •... - Page 19 H E A T I N G S O L U T I O N S L T D www.gemtex.co.uk...
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Page 20: Info @ Gemtex.co.uk Www.gemtex.co.uk
H E A T I N G S O L U T I O N S L T D info@gemtex.co.uk Gemtex Heating Solution Ltd 65 Basepoint Business Centre www.gemtex.co.uk Aviation Business Park Enterprise Close Christchurch BH23 6NX Gemtex reserves the right to make changes and improvements FORM1018a which may necessitate alteration to the specification without prior notice.
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