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Varistar LHX 3 

   60130-626 Revision 001 

See also point 4. 
 
If the water temperature falls below 16 °C the formation of condensation should be anticipated 

4. Water 

Quality 

 
 
To ensure trouble-free operation of the LHX 3 the following requirements for the water must be 
observed (see also VDE 3803): 
 
 
 

- Electrical conductivity: 

 

25 mS/m < 220 mS/m at 25 °C 

- Hydrogen concentration:   

7.5 ... 8.5 (pH value) at 20 °C 

 

Chloride: 

   < 

200 

g/m³ 

- Total hardness: 

 

 

< 60°dH 

- Colonial units: 

 

 

< 10.000 KBE/ml 

Appearance:   clear, 

sediment-free 

Colour: 

   clear 

 
 
 
 
 
 
 
 
 
 
 

5.  Transport and Storage 

 
 
Any damage found on unpacking should be communicated to the carrier and the transport 
insurer immediately.  
 
During transport, ambient temperatures of between -25 °C and 70 °C and a relative humidity of 
between 5 and 95 % are generally permissible.  
 

 

 

After storage at temperatures below 10 °C, sufficient time should be allowed 

for acclimatisation before switching on, as condensation water may have formed. 

 
 
The LHX 3 must only be transported without water.  
 
 
If the unit is to be stored or transported in ambient temperatures of less than 0 °C, special 
measures must be taken to prevent damage caused by freezing.  
 
 

Summary of Contents for VARISTAR LHX 3

Page 1: ...LHX 3 60130 626 Revision 001 1 OPERATING MANUAL VARISTAR LHX 3 Air Water Heat Exchanger V A R I S T A R Schroff GmbH Climate Control Langenalber Strasse 96 100 D 75334 Straubenhardt Telephone 49 0 70...

Page 2: ...not accept liability for any damages arising directly or indirectly from the supply or use of this documentation Signs and Symbols Throughout this operating manual the notices below are identified by...

Page 3: ...ving and rotating the LHX 3 heat exchanger cassette 10 6 3 Fitting the fan unit 11 6 4 Water supply 12 6 4 1 Water supply from rear 12 6 4 2 Water supply from front 12 6 5 Drainage of condensate 13 7...

Page 4: ...s warmed by extracting heat from the air and flows back to the cooling water circuit Meanwhile the air now cooled is reintroduced into the cabinet from below General Remarks for Effective Cooling An e...

Page 5: ...BE PROPERLY SECURED TO AVOID RISK OF TIPPING NO SAFETY FEATURE MAY BE DISABLED OR BYPASSED THE APPLICABLE VDE EN AND IEC STANDARDS MUST BE OBSERVED IN THE ELECTRICAL FITTING AND CONNECTION OF THE LHX...

Page 6: ...circuit Airflow volume m3 h 900 Electrical data AC Supply voltage 1 N PE 230 V 50 60 Hz Current consumption A 0 38 Power consumption W 85 Apparent power consumption at full load VA 120 Protection fuse...

Page 7: ...18 19 Water inlet temperature C Cooling capacity kW LHX3 17 5 18 18 5 19 19 5 20 20 5 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 Cooling capacity kW at a water inlet temperature of 10 C Cabinet air inlet temperat...

Page 8: ...arance clear sediment free Colour clear 5 Transport and Storage Any damage found on unpacking should be communicated to the carrier and the transport insurer immediately During transport ambient tempe...

Page 9: ...IDENT PREVENTION REGULATIONS MUST BE OBSERVED 6 1 Removing the LHX 3 from the wooden pallet At delivery the base of the LHX 3 is secured to a wooden pallet To remove this first unscrew the covers to f...

Page 10: ...to change the water connection points from the rear to the front first remove the heat exchanger cassette Also remove the transport securing bracket Fig 3 Now you can pull the heat exchanger cassette...

Page 11: ...ning of the handles on the heat exchanger please consult the Schroff service department for assistance For contact information see page 2 6 3 Removing the Fan Unit Caution While removing or working on...

Page 12: ...fening truss in order to reach the two water connections Figs 10 13 6 4 2 Water supply from front If you have arranged the cassette facing forward this is unnecessary and you can reach both water conn...

Page 13: ...drainage of condensed water remove the rubber cap and fit a hose connecting pipe diameter 6 mm to the condensate drain outlet Figs 15 and 16 The hose is not included with the unit The LHX 3 is normall...

Page 14: ...LHX 3 from system case connector A collecting vessel should be to hand to catch any leakage of water 8 Environmental Requirements During the commissioning and decommissioning of the LHX 3 the applicab...

Page 15: ...6 Revision 001 15 9 Malfunctions and Troubleshooting WORK ON ELECTRICAL SYSTEMS MUST ONLY BE CARRIED OUT BY QUALIFIED PERSONNEL ACCIDENT PREVENTION REGULATIONS MUST BE OBSERVED See page 2 for our curr...

Page 16: ...ORK ON ELECTRICAL SYSTEMS MUST ONLY BE CARRIED OUT BY QUALIFIED PERSONNEL ACCIDENT PREVENTION REGULATIONS MUST BE OBSERVED ISOLATE THE LHX 3 FROM THE MAINS SUPPLY BEFORE OPENING May only be carried ou...

Page 17: ...ly excluded 11 3 Exclusions from the warranty Units that have been opened or modified without authorisation or whose serial number has been falsified altered or removed Damage or malfunctions caused b...

Page 18: ...bove EC Guidelines by Schroff GmbH Langenalber Stra e 96 100 D 75334 Straubenhardt Germany The following harmonised standards were applied Safety requirements to EN 61010 1 03 2001 Earthing connection...

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