Technical data
Installation, user and maintenance manual – GAHP-A
63
 With the appliance running, access menu 2 parameter 24 of the unit's controller: 7. 
the display will ash "P_H1", press to conrm forcing maximum thermal power .
 Check that, also following a regulation intervention on screw C, the value of CO8. 
2
corresponds to the value read in Table 6.2 Gas nozzles and content of CO2 → 65 at 
the "Content of CO
2
 with/Max modulation" line with tolerance of +0.2 -0.4.
If you cannot calibrate the CO
2
 percentage after the second attempt, DO NOT acti-
vate the appliance; contact Robur technical service at +39 035/888111.
 If you have successfully calibrated the combustion parameters, access menu 2 pa-9. 
rameter 25 of the unit's controller: the display will ash "unF1", press to conrm 
modulation of thermal power.
After 30 minutes of operation the appliance automatically cancels the preceding 
forced power mode. To anticipate this timing, select and execute action "25" in 
menu 2.
 Switch the appliance o.10. 
 Close the gas valve.11. 
 Reinstall the cap A in Figure 6.1 Gas valve 12.  → 61.
 Reinstall the front panel.13. 
6.2   MAINTENANCE
Correct maintenance prevents problems, guarantees maximum operating eciency of 
the appliance and allows running costs to be contained.
Before carrying out any operation on the appliance, switch it o via the CCP/DDC (or 
consent switch) and wait for the shutdown cycle to terminate. When the appliance is o, 
disconnect it from the gas and electricity mains via the external circuit breaker and the 
gas valve.
Any operation that regards internal components of the appliance must be carried out 
by an authorized Robur Technical Assistance Centre (TAC), according to the instructions 
supplied by the manufacturer.
Ordinary scheduled maintenance
Perform the operations described below at least once a year. If the unit is subjected to 
particularly heavy use (for example in processing plants or in other conditions of continu-
ous operation), these maintenance operations must be performed more often.
Maintenance operations that the user may NOT carry out (operations for a Robur TAC).
 Check cleansing of the water lters.•
 Inspecting the condensate siphon and removing any foreign substances.•
 Checking that the oil pressure pump is operating correctly:•
- checking the oil level;
-  checking  the  transmission  belts  (replacement  every  5  years  or  10,000  hours  of 
operation).
 Checking the ignition and ame detector system.•
 Checking  the  operation  of  internal  components  (safety  and  regulation •
equipment).
 Analysis of combustion products.•
Furthermore, as regards the maintenance of the combustion unit, the following should 
be done at least once yearly:
 Burner: clean and replace if visibly damaged on the surface.•










