4
Code: 02250151-- 218 SR-- 5 --- S R -- 100
English
4
3.3 Stopping the dryer
a) Use the switch to stop the dryer.
b) Stop the dryer 2 minutes after shutting down the air compressor or interrupting
the air flow to the dryer.
Avoidallowingcompressedairtoenterthedr
er when the dr
er is
switchedofforwhenitisinanalarmsituationwhichstopstherefrigeration
compressor.
3.4 Operation
S The dryer operates automatically. It is factory set for a dew point of 37˚F(3˚C)
(ISO 7183, Part 2) and therefore requires no further calibration.
S Do not exceed the machine’s design limits, bypass e xcess air flow and check the
unit model and/or installation.
S For maximum performance from your dryer, follow the maintenance schedule de-
scribed in Chapter 4.
S The sound pressure level recorded for these dryers 40 inch (at 1 metre) from the
machine in free field conditions is less then 50 dB(A) (models SR-- 5 --- S R -- 15),
55 dB(A) (models SR-- 2 5 --- S R -- 100)
Fig. 5 shows the Dryer’s refrigeration and air circuits.
4 Maintenance
Before accessing live electrical parts , disconnect the power supply to the
dryer using disconnect switch QS or disconnect the cable connections.
SAFETY DEVICES
SK overload protector
HP high pressure switch (installed on models SR-- 5 0 --- S R -- 100)
COMPRESSOR TYPE
HERMETIC, PISTON (single phase)
N.B.: Always use original spares supplied by the manufacturer.
Failure to do so renders the manufacturer not liable for incorrect unit operation.
4.1 Preventive maintenance
For optimum performance from your dryer follow the periodic maintenance sched-
ule described below.
CONDENATE DRAIN
Verify that the condensate drain is draining correctly.
COMPRESSOR
˚
˚
a
esure
e compressor
ea
empera
ure
s
e
ow
when running. If this is not the case consult Chapter 7.
CONDENSER
Remove any dust from the condenser fins.
COMPRESSOR
Make sure compressorpower consumptioncomplies withdata plate
specifications.
YEARL Y
CONDENSATE DRAIN
Completely disassemble the drain and clean all its components (see
Fig. 8 or separate manual, according to installed drain type).