107
Code: 02250145-- 604 SR-- 250 --- SR -- 3000
English -- Legend
m. ATTENTION!
Neverpass compressed air through thedryer whenit isstopped.
Always start the dryer 5 minutes before slowly opening the air
inlet valve. If the airflow is to besto pped only switch the dryer
off after closing the air inlet.
n. SETTING (hot gas valve)
Evaporating pressure in 0_C, with precision manometer con-
nected at evaporator outlet.
o. ATTENTION: SCROLL three---phase compressors.
If the compressor is noisy and the pressure on the (LP) gauge
does not decrease you should immediately invert two phases.
Please refer to the service manual for more details.
p. ATTENTION: Hot and moving parts enclosed, disconnect the
mains supply before removing this cover.
q. ATTENTION
1 Fullydrain thepiping before connectingthis unitto theexter-
nal water piping (cold water, make up water, ect.).
2 Fitting of a standard strainer is also strongly recommended
on the inlet water piping.
r. WARNING:
Risk of electric shock can cause injury or death.
Disconnect all remote electric power supplies before servicing.
s. BSPP pipe threads
use supplied adapters
DRAWINGS
A. TIMED SOLENOID DRAIN
1. MC compressor
2. refrigerant condenser
3. EV-- 1-- 2fanmotor
4. evaporator
5. separator
6. insulation
7. expansion capillary
8. refrigerant filter
9. hot gas valve
10. air---air heat exchanger
12. PV fan pressure switch
14. QS main switch
15. HP high pressure switch
16. ST high temperature thermostat
17. low pressure manometer
18. compressor valve
25. thermometer sensor pocket
27. gas charge point
28. water pressostatic valve
29. high pressure tap
30 . QF1 compressor motor automatic switch
30a QF2 fan motor automatic switch
31. KM2 fan motor contactor
32 . KM1 compressor motor contactor
33. TC1 auxiliary transformer
35. power cable inlet
36. remote control cable entry point
37. control panel
38. T0 dew point temperature sensor
40. liquid separator
FU1-- 2 transformer fuse TC1
FU3-- 4 auxiliary fuse 230V
FU5 control panel fuse
PI compressor internal protection
K A1 high pressure alarm relay
C1 compressor start capacitor
C2 fan run capacitor
QF residual current circuit---breaker
(by installer)
(A) remove bridge if “remote on---off”
is installed
LABELS
a S Model
S Serial No.
S Low/High side refrigeration
circuit design pressure
S Max air pressure
S Max compressed air inlet
S Min. ambient
Max ambient
S Power supply
Electrical diagram no.
S Oil
S Min. circuit ampacity
S Max protective device rating
S Compressor
S Fan 1
S Fan 2
S Max cooling water pressure
S Min. cooling water pressure
S Refrigerant
S Weight
b QUALITY CHECKED INSPECTOR N. 302
c. See Chapter 2
d. Air inlet
e. Air outlet
d1. Water inlet
e1. Water outlet
f. ATTENTION: components under power.
g. ATTENTION: SCHRADER V ALVE
1 This unit is equippedwith refrigerant as for quantity andkind clearly shown
in operating manual and with identification label.
2 Any ordinary test and/ or refrigerant recharge by means of connections can
take place only after refrigerant evacuation. The evacuation must be pro-
portional to dimensions and length of the connections used. The use of the
valve can be jus tified only when the dryer is not in working order.
3 During the unit guarantee period, the Schrader valvecan be used by autho-
rized staff only, otherwise any damage caused by a wrong refrigerant
recharge will not be under warranty.
l. Condensate drain connection
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