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Vexve TERMOVAR Series, Mounting And Operating Instructions, Page: 5 / 7

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Vexve TERMOVAR Series Mounting And Operating Instructions Download Page 5

TERMOVAR LU (EN) 06.12 

 
 

5 (7) 

 
 
 
CIRCULATING PUMP 
 

TERMOVAR loading unit has a Grundfos UPS 15-60 CIL circulating pump. Flow and capacity 
according to the diagram below. Pump speed III is recommended. In a normal installation with  
pump speed III the flow will be 40 – 46 l/m.   

 
 

                                            

 

 
 
 
THERMOSTATIC ELEMENTS 
 

Every thermostatic element has a code on the copper body.  
 
 

                

                                        

Code on element

       

Opening temperature

      

Fully open 

 
                                                   

9311                                45°C                          60°C 

                                                   8749                                55°C                          67°C 
                                                   8743                                61°C                          73°C 
                                                   8719                                72°C                          84°C 
                                                   1456                                80°C                          92°C 
 
 

REPLACING THE THERMOSTATIC ELEMENT 
 

- 

Turn off the pump 

- 

Close the three ball valves 

- 

Open the cover No. 22 opposite the pump 

- 

Take out the element housing and the spring  

 
After replacing the element open the three ball valves and start the pump. 

IMPORTANT! 

Check that there is no air in the system.

 

 
                                      
 
 

Summary of Contents for TERMOVAR Series

Page 1: ...TERMOVAR LU EN 06 12 1 7 TERMOVAR LOADING UNIT MOUNTING AND OPERATING INSTRUCTIONS Sizes Rp 25 Rp 32 28 mm With EPP Insulation With Backflow Preventer Without Backflow Preventer ...

Page 2: ...ansferred into the storage tank It also allows self circulation in case of power failure MAIN PARTS 1 Thermally operated loading valve 2 Automatic balancing valve 3 Backflow preventer Model S without 4 Circulation pump 5 Three thermometers 6 Three ball valves 7 Insulation EPP optional Order No 4919 TECHNICAL DATA Voltage 230 VAC 50 Hz Power consumption Pump speed I 45 W Pump speed II 75 W Pump spe...

Page 3: ...al boilers have factory installed thermostats for pump control If not a flue gas thermostat ACASO Art Nr 7100 must be used Self circulation For self circulation the supply pipe should be connected to the top of the storage tank and the return pipe to the bottom Self circulation is obtained as soon as the fire and the circulating pump have stopped The remaining hot water will now self circulate to ...

Page 4: ...f return water into the boiler When the thermostatic element is fully open the balan cing valve is closed and the entire capacity of the pump is used for cooling the boiler and loading the storage tank 3 End phase The thermostat element is fully open The balancing valve is closed This results a maximum cooling of the heating boiler and the storage tank is fully filled with supply water 4 Self circ...

Page 5: ...ELEMENTS Every thermostatic element has a code on the copper body Code on element Opening temperature Fully open 9311 45 C 60 C 8749 55 C 67 C 8743 61 C 73 C 8719 72 C 84 C 1456 80 C 92 C REPLACING THE THERMOSTATIC ELEMENT Turn off the pump Close the three ball valves Open the cover No 22 opposite the pump Take out the element housing and the spring After replacing the element open the three ball ...

Page 6: ...with spring 3 4955 TERMOVAR body 55ºC 10 4911 Element code 9311 45ºC 3 4961 TERMOVAR body 61ºC 10 4912 Element code 8749 55ºC 3 4972 TERMOVAR body 72ºC 10 4913 Element code 8743 61ºC 3 4980 TERMOVAR body 80ºC 10 4914 Element code 8719 72ºC 4 13 18 4918 Sealing 44 x 32 x 2 mm 10 4915 Element code 1456 80ºC 5 11 19 4904 Ball valve Rp 1 x 28 mm 17 4916 Backflow preventer Model S without 5 11 19 4905 ...

Page 7: ...40 0 20 120 100 60 80 60 0 20 40 100 120 80 120 0 40 20 60 80 100 Heating boiler Right hand mounting Storage tank 40 0 20 120 100 60 80 60 0 20 40 100 120 80 120 0 40 20 60 80 100 Storage tank Left hand mounting Heating boiler ...

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