Installation, user and maintenance manual
– GAHP-A
73
If the check/setup of the combustion parameters has been successful, please en-
10.
ter menu 2, parameter 25, of the electronic board inside the electric box of the
appliance: on the display, the message "unF1", will blink; press to remove the op-
erational override previously selected and then return to the normal operational
configuration with modulation of the thermal power.
After 30 minutes, the appliance will automatically remove the thermal power override
previously selected. To speed up, select and execute action "25" of menu 2.
Switch the appliance off.
11.
Close the gas valve.
12.
Reinstall the cap A in Figure 7.1 Gas valve
13.
→
71.
Reinstall the front panel.
14.
7�2
MAIntenAnCe
Correct maintenance prevents problems, guarantees maximum operating efficiency of
the appliance and allows running costs to be contained.
The maintenance operations described in this paragraph must be performed exclusively
by the serviceman in charge of the plant or by an authorized CAT Robur.
Any operation that regards internal components of units of the appliance must be car-
ried out by an authorized Robur Technical Assistance Centre (TAC), according to the in-
structions supplied by the manufacturer.
The "efficiency check" and every other "check and maintenance operation" (see Table
7.1
→
74 and 7.2
→
74), must be performed with a frequency in agreement to cur-
rent law or, if more restrictive, in respect of what requested by the planner (builder of the
system) or by the manufacturer of the unit.
the liability of CHECKING THE EFFICIENCY AS A FUNCTION OF THE SYSTEM, OF THE FUEL
IN USE AND OF THE THERMAL POWER, to be carried out with the purpose of containing
the energy consumption, is in charge to the responsable of the system.
Before any maintenance operation, switch off the appliance by means of the permissive
contacts (or by means of DDC/CCP) and wait for the completion of the shut-down cycle.
When the appliance is off, switch off power supply and gas supply (according to anti-
icing settings), opening the electrical breaker and closing the gas isolation valve.
GUIdeLInes foR tHe PReVentIVe MAIntenACe oPeRAtIons
In Table 7.1
→
74 are reported the guidelines for the preventive maintenance
operations.
If the unit is subject to particularly heavy duty (for example in process plants or in
other conditions of continuous operation), these maintenance operations must be
more frequent.
