Vaillant geotherm exclusive Installation Instructions Manual

Also see for geoTHERM exclusive: Operating manual

Contents

Vaillant geotherm exclusive Installation Instructions Manual Manual pdf 73 page image

73geoTHERM exclusive VWS 0020051614_00 installation instructions9 Inspection and maintenance9.1 Notes for maintenanceAn annual inspection/maintenance of the unit by a spe-cialist is a prerequisite for continuing operational safety,reliability and a long working life.d Danger!Inspection, maintenance and repair workshould only be undertaken by an ap-proved heating installation company.Inspections / Maintenance work not car-ried out can result in damage to proper-ty and personal injury.Only genuine Vaillant spare parts may be used for in-spections, maintenance and repair work to ensure theperfect long-term working order of all functions of yourVaillant appliance and to prevent the approved seriescondition from being changed.Any spare parts which might be required are listed inthe relevant current spare parts catalogues.Information can be obtained from Vaillant CustomerService Centres.9.2 Carrying out the maintenance worke Danger!Risk of fatal electric shock from touch-ing live connections! Before commencingwork on the heat pump, disconnect thepower supply (circuit breaker) and se-cure it against being switched on againinadvertently.The heat pump is engineered in such a way that only afew maintenance works need to be carried out:– Manually actuate the safety assemblies in the brineand heating circuits at regular intervals.– Check the dirt filter in the brine circuit regularly.– Check the pressures in the brine and heating circuitsregularly.– Anual check of pressure/temperature relief valveandexpansion relief valve.• Manually operate each valve by twisting the operatingcap, and check if water flows unostructed via thetundish to the discharge point.• Ensure that both valves reseat stisfstorily.– Anual check of pressure expansion vessel.• Turn off mains water supply and open nearest hotwater tap to depressurise the secondary water sys-tem.• Check the expansion vessel charge with a pressuregauge at the test point. If the pressure is below3.0 bar, top up with a suitable air pressure pump.9.3 Test operation and restarting• Fit all the heat pump cladding sections as described inChap. 4.• Start up the heat pump.• Check the heat pump for correct functioning.d Danger!Risk of injury!The heat pump may only be put into op-eration again after all the cladding sec-tions have been fitted.10 Troubleshooting and diagnosisd Danger!Troubleshooting and diagnostics meas-ures may only be carried out by a recog-nised expert technician company.e Danger!Risk of fatal electric shock from touch-ing live connections! Before commencingwork on the heat pump, disconnect thepower supply (circuit breaker) and se-cure it against being switched on againinadvertently.10.1 Error messages on the controllerError messages appear on the display approximately20 seconds after the error has occurred and are writtento the controller's error memory if the error is presentfor approximately 3 minutes. You can call up the errormemory in Menu I1. As long as the fault is present, youcan call up the fault display by turning the left hand dial1 x to the left, starting from the graphics display.Error History I1Fault number >1Fault code 4116.02.08 07:18Error CH circuitSensor T3 heat sourceFig. 10.1 Error message in error memory, Menu I1The geoTHERM control system recognises three differ-ent types of malfunction:– Malfunction of components that are connected viathe eBUS.– Temporary shut-downThe heat pump remains in operation. The error is dis-played and disappears independently when the causeof the fault is removed.Inspection and maintenance 9Troubleshooting and diagnosis 10