Robur K18 Hybrigas, Installation, Use And Maintenance Manual, Page: 51 / 60

Maintenance
Installation, use and maintenance manual – K18 Hybrigas
51
7
7 MAINTENANCE
7.1
WARNINGS
Correct maintenance prevents problems, assures effi-
ciency and keeps running costs low.
Maintenance operations described herein may exclu-
sively be performed by the TAC or skilled maintenance
technician.
Any operation on internal components may exclusively
be performed by the TAC.
Before performing any operation, switch off the appli-
ance by means of the control device and wait for the end
of the switching off cycle, then disconnect power and
gas supply, by acting on the electrical disconnector and
gas cock.
The efficiency checks and every other "check and mainte-
nance operation" (see Tables 7.1
p. 51 and 7.3 p. 52)
must be performed with a frequency according to cur-
rent regulations or, if more restrictive, according to the
provisions set forth by the manufacturer, installer or TAC.
Responsibility for efficiency checks, to be carried out for
the aims of restricting energy consumption, lies with the
system manager.
Environmental or operational heavy conditions
In environmental or operational conditions particularly
heavy (for example: heavy-duty use of the appliance,
salty environment, etc.), maintenance and cleaning op-
erations must be more frequent.
7.2
PRE-EMPTIVE MAINTENANCE
7.2.1 Heat pump module
For pre-emptive maintenance, comply with the recommendations in Table 7.1 p. 51.
Table 7.1 Guidelines for the preventive maintenance operations
K18 Simplygas
Guidelines for the preventive maintenance operations
Check of the unit
visually check of the general condition of the unit and of its air heat exchanger √ (1)
check the correct operation of the device used for monitoring the water flow √
check the % value of CO
2
√
check that the condensate discharge is clean (If necessary, frequency of the main-
tenace operation must be increased)
√
replace the belts after 6 years or 12,000 hours of operation √
(1) It is suggested to clean the finned coil once every 4 years (Optimal frequency of the cleaning operation is in any case strongly affected by the installation site).
7.2.2
Condensing boiler module
For pre-emptive maintenance, comply with the recommendations in Table 7.2 p. 51.
Table 7.2
Guidelines for the preventive maintenance operations
Boiler for K18 Hybrigas
Guidelines for the preventive maintenance operations
Check of the unit
check the % value of CO
2
√
check that the condensate discharge is clean (If necessary, frequency of the maintenace
operation must be increased)
√
check/restore the air pressure inside of the expansion vessel of the primary hydronic circuit √