CLIVET CSRN-XHE2 Series - Page 28

28 CSRN-XHE2 15.2-44.4 M08F40N15-02
9 Maintenance
9.1 General description
Maintenance must be done by authorized centres or by qualied personnel.
The maintenance allows to:
t
maintain the unit eciency
t
increase the life span of the equipment
t
assemble information and data to understand the state of the unit eciency and avoid possible damages
Before checking, please verify the following:
t
the electrical power supply line should be isolated at the beginning
t
the unit isolator is open, locked and equipped with the suitable warning
t
make sure no tension is present
After turning o the power, wait at least 5 minutes before accessing to the electrical panel or any other electrical component.
Before accessing check with a multimeter that there are no residual stresses.
9.2 Inspections frequency
Perform an inspection every 6 months minimum.
The frequency, however, depends on the use.
In the event of frequent use it is recommended to plan inspections at shorter intervals:
t
frequent use (continuous or very intermittent use, near the operating limits, etc)
t
critical use (service necessary)
√ intervention frequency (months) 1612
1 presence corrosion X
2 panel xing X
3 fan xing X
4 coil cleaning X
5 bowl cleaning + sanitisation X
6 outow test X
7 air lters cleaning / inspection X
8 check of the xing and the insulation of the power lead X
9 check of the earthing cable X
10 electric panel cleaning X
11 capacity contactor status X
12 termina closing, cable insulation integrity X
13 voltage and phase unbalancing (no load and on-load) X
14 absorptions of the single electrical loads X
15 test of the compressor crankcase heaters X
16 Checking for leaks *
17 survey of the refrigerant circuit operating parameters X
18 safety valve *
19 protective device test: pressure switches, thermostats, ow switches etc.. X
20 control system test: setpoint, climatic compensations, capacity stepping, water / air ow-rate variations X
21 control device test: alarm signalling, thermometers, probes, pressure gauges etc.. X
* Refer to the local regulations; and ensure correct adherance. Companies and technicians that eect interventions of installation, maintenance/re-
pairs, leak control and recovery must be CERTIFIED as expected by the local regulations. The leak control must be eected with annual renewal.