IOM – FLEXY II – 1007 – E Page 95
Task Operati ng mode
Monthly
Quarterly
6 m ont hly
Yearly B 4
winter
Estimated
Time
(min)
Clean or replace filters: Disposable, or
met al fr a me.
Replace filters with new ones if disposable. Vacuum clean
or blow t he dir t. W ash an d dry c aref ully. Re place media
if necessar y
Bloc ked filter will reduc e t he perf ormance of th e unit.
THE UNIT MUST NOT OPERATE WITHOUT FILTERS
o 20
Visual ch ec k of t he oil level
Visuall y chec k the oil level through the sight glass on the
side of the compressor casing
o 2
Position chec k of th e compressor
crankcase heater.
Chec k the heating resistance is fitted pr operl y and tight
aroun d t he c o mpress or bo d y.
o 2
Belt t ension ch ec k. Check belt tension (Info in IOM) Repl ace belt if necessar y.
o 10
Centrifugal fan bearings check
Isolate unit from t he main power s uppl y; Pus h the fan
wh eel ma nu al l y an d ch ec k f or a bnor mal noi ses . B ear ing s
are lubrica ted for life b ut may ne ed r eplacement after
100 00 ho ur s
o 10
Chec k absorbed Amps
Chec k absorbed Amps on all three phases; compare with
the nomin al value given i n the electrical wiring diagram.
[] 15
Chec k Smoke detector
Start t he unit . Trig ger the smo ke detect or b y movi ng a
mag net around the detector head. Reset unit and control.
[] 5
Chec k Climatic control, set-poin ts a nd
var i a bl es
Refer to the commissioning sheet; Check all set points are
set acc ording to this doc ument.
[] 15
Chec k cloc k settings Chec k the ti me and date o f t he c ontrol o 5
Chec k the position and tightness of
refrigeration components
Chec k systematicall y all c onnections and fi xings on the
refrigeration circuit. Check for oil traces, eventually a leak
test s houl d be conduct ed. C hec k operating press ures
correspond to the ones indicat ed on the commissioning
sheet
[] 30
Chec k Airflow rate s afety switc h (if
fitted).
Shut down su ppl y fan. T he f ault must be det ected withi n 5
seconds.
o
Chec k freeze protection on HWC [] 5
Chec k three way val ve on HWC
Increas e room s et-point 10°C above the actual room
temperature. Chec k operation of the piston. It must mo ve
awa y fr o m t he val ve he ad. Rese t th e c ontrol.
[] 5
Chec k economis er actuator operation
Chec k all fixings and transmission. Stop the unit using the
control. T he fresh air damper must cl ose. St art the unit the
fresh air damper should open
[] 5
Chec k refrigeration 4way val ve
With t he uni t run ni ng i n co oling mod e i ncr e ase the r oo m
set-point t em perat ure b y 1 0°C. T he unit s ho uld s witch to
hea t pump mode. Reset the control.
[] 5
Chec k tightness of all electrical
connections
Power down t he unit a nd c hec k and tighten all screws ,
termin al a nd electric connectio ns, t aking a particular
atte ntio n t o th e po wer lines a nd l ow volt ag e co ntr ol wires
O 30
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