The listed maintenance work is required for optimal and trouble-free operation. If signs of increased wear are detected during regular checks, it is necessary to shorten the maintenance intervals in accordance with the actual signs of wear and tear. Maintenance intervals also vary depending on water quality, operating conditions and installation location. For more information or if you have any questions about maintenance work and service intervals, please contact your HB-Therm distributor (www.hb-therm.com).

IntervalComponents (abbreviation)Maintenance workQualification
When needed


Display, housing, housing cover
  • If necessary, clean the outer parts of the unit with a soft, damp cloth.
    → Do not use aggressive cleaning agent!
operator
Flow rate measurement (BB 1, BB 2)
  • Check accuracy using the HB-TP180 checking facility
When integrated maintenance is requested, otherwise every 3 months/ approx. 1000 h












Filter screen in the cooling water inlet (3)
  • Check for contaminants
  • Clean if necessary
Filter screen in the return line (3.1)
Filter screen in the Main line (if available)
Filter mat on the bottom of the device in the electrical sector
Pump fan cover (4S pump only)
  • Check for contaminants
  • Clean if necessary
qualified personnel
Mechanical connections
  • Check for tightness, mechanical stress and a tight fit.
  • If necessary, retract or replace
Seals, O-rings
  • Check for tightness
  • Clean or replace if necessary
When integrated maintenance is requested, otherwise every 6 months/ approx. 2000 h












Cooling valve 1 (M 3)
  • Check for tightness, contamination and mechanical stress
  • Check function:
    • Select [Service] > [parameter] > [Cooling] > [Stepper Motors] > [Positioning KV 1] or [Positioning KV 2]
       0% = Valve completely closed
      100% = Valve completely opened
  • Clean or replace if necessary
qualified personnel
Cooling valve 2 (M 4)
  • Check internal parts for contamination and mechanical stress.
  • Clean or replace if necessary
Air relief valve (YV 1)
Filling valve (YV 2)
Pressure relief valve (YV 5)
Compressed air valve (YV 7)
Safety valve (4)
  • Check that function is working (to do this, the heat transfer medium in the unit must be under increased pressure):
    • Slowly turn on the knurled nut until water escapes through the overflow.
    • If no water escapes, correct function is not guaranteed, clean or replace if necessary
When integrated maintenance is requested, otherwise every 12 months/ approx. 4000 h






Pump with motor (M 1)
  • Check the condition of the pump (→ maintenance indicator).
  • Check for tightness
  • Check engine mounts for smooth movement when stationary
  • Check engine mounts for running noises while in operation
  • If necessary, replace individual components
  • An additional check with the HB-TP180 checking facility is recommended.
qualified personnel
Filling pump (M 2)
  • The integrated maintenance request indicates whether a more detailed check is necessary.
  • Check the unit with the HB-TP180 checking facility (pressure increase approval)
  • Check for running noises (vibration/swing movement)
  • Check for contamination
  • Clean or replace if necessary
Heating (EH 1)
  • The integrated maintenance request indicates whether a more detailed check is necessary.
  • Check the unit with the HB-TP180 checking facility (measuring the heat-up time without mould)
  • Clean or replace if necessary
Cooler (6)
  • The integrated maintenance request indicates whether a more detailed check is necessary.
  • Check the unit with the HB-TP180 checking facility (measuring the cooling time without mould)
  • Clean or replace if necessary
When integrated maintenance is requested, otherwise every 18 months/ approx. 6000 h










Hydraulic hose lines (device interiors)

The maintenance of external hydraulic hose lines must be carried out in accordance with the manufacturer's instructions.

  • Check for mechanical stress on the outer jacket and in the sealing area
  • Replace if necessary
Hydraulic specialists
Safety thermostat/temperature limiter in the Main line (ST 1)
  • Check for mechanical stress and a tight fit
  • If necessary, retract or replace
Electricians
Electrical connections
  • Check connections for mechanical stress and a tight fit
  • If necessary, retract or replace
Electrical fan (EV 1)
  • Check for function and contamination
  • Clean or replace if necessary
Temperature measurement (BT 1, BT 2)qualified personnel
Pressure measurement (BP 1, BP 2)