Atlas Copco FD90 Manuel utilisateur
Atlas Copco Air dryers
No. 2920 1390 02
Replaces No. 2920 1390 01
Registration code: APC FD / 38 / 975
2001-12
FD90, FD110, FD130, FD170 and FD230
Instruction book
Web-site: ttp://www.atlascopco-compressors.com
·
Copyrig t 2001, Atlas Copco Airpower n.v., Antwerp, Belgium.
Any unaut orized use or copying of t e contents or any part t ereof is pro ibited. T is
applies in particular to trademarks, model denominations, part numbers and drawings.
·
T is instruction book meets t e requirements for instructions specified by t e mac inery
directive 98/37/EC and is valid for CE as well as non-CE labelled mac ines.
2920 1390 02
2
Instruction book
T is instruction book describes ow to andle and operate t e subject mac ine(s) to ensure safe operation, optimum working
economy and long service life.
Read this book before putting the machine into operation to ensure correct andling, operation and proper maintenance from
t e beginning. T e maintenance sc edule contains a summary of t e measures for keeping t e dryer in good repair. T e
maintenance procedures are simple but must be carried out regularly.
Keep t e book available for t e operator(s) and make sure t at t e dryer is operated and t at t e maintenance actions are carried
out according to t e instructions. Record all operating data, maintenance work effected, etc. in an operator's logbook available
from Atlas Copco. Follow all applicable safety precautions, amongst ot ers t ose mentioned in t is book.
Repair operations s ould be performed by trained personnel from Atlas Copco w o can also be contacted if any furt er information
is desired.
In all correspondence always mention t e dryer type and t e complete serial number, s own on t e data plate.
For all specific data not mentioned in t e text, consult sections "Maintenance" and "Principal data".
The company reserves the right to make changes ithout prior notice.
Page
3.2 Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 During operation . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6 Problem solving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Principal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.1 Limitations/nominal conditions . . . . . . . . . . . . . . 15
7.2 Specific data of FD90, FD110 and FD130. . . . . . 15
7.3 Specific data of FD170 and FD230 . . . . . . . . . . . 16
8 Conversion list of SI units into British units . . . . . . 16
Contents
Page
1 Leading particulars . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Air circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Refrigeration circuit . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Automatic regulation system . . . . . . . . . . . . . . . . . 4
1.5 Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Dimension drawings . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Installation proposal . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Installation instructions . . . . . . . . . . . . . . . . . . . . 12
2.4 Pictograp s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Initial start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2920 1390 02 3
Instruction book
1 LEADING PARTICULARS
1.1 General description
T e FD air dryers remove moisture from compressed air by
cooling t e air to near freezing point. T is causes water to
condense. T e condensate is automatically drained. T e air is
warmed up before leaving t e dryer.
1.2 Air circuit (Fig. 1.2)
Compressed air enters eat exc anger (13) and is cooled by
t e outgoing, cold, dried air. Water in t e incoming air starts to
condense. T e air t en flows t roug eat exc anger/
evaporator (11) w ere t e refrigerant evaporates causing t e
air to be furt er cooled to close to t e evaporating temperature
of t e refrigerant. More water in t e air condenses. T e cold
air t en flows t roug separator (3) w ere all t e condensate
is separated from t e air. T e condensate collects in condensate
trap (4) and is automatically drained. T e cold, dried air flows
t roug eat exc anger (13), w ere it is warmed up by t e
incoming air to approx. 10 degrees Celsius below t e incoming
air temperature. Condensation in t e air net cannot occur unless
t e air is cooled to below t e pressure dewpoint indicated by
gauge (1).
1.3 Refrigeration circuit (Fig. 1.2)
Compressor (M1) delivers ot, ig -pressure refrigerant gas
w ic flows t roug condenser (9) w ere most of t e refrigerant
condenses.
T e liquid flows t roug liquid refrigerant dryer/filter (12) to
capillary tube (7). T e refrigerant leaves t e capillary tube at
evaporating pressure.
T e refrigerant enters evaporator (11) w ere it wit draws eat
from t e compressed air by furt er evaporation at constant
pressure. T e eated refrigerant leaves t e evaporator and is
sucked in by t e compressor via accumulator (14).
M1. Refrigerant compressor
S3. Fan control switc
S7. Hig pressure s ut down switc
1. Control panel
2. Condenser
3. Hot gas by-pass valve
4. Liquid refrigerant dryer/filter
Fig. 1.1 General view of FD90
24S7 S3
1
3
M1
50643F
2920 1390 02
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Instruction book
AI. Wet air inlet
AO. Dry air outlet
M1. Refrigerant compressor
M2. Condenser fan motor
S3. Fan control switc
S7. Hig pressure s ut down switc
1. Pressure dewpoint gauge
2. Insulating block
3. Condensate separator
4. Condensate trap
5. Automatic condensate drain ose
6. Manual condensate drain valve
7. Capillary tube
8. Condenser cooling fan
9. Refrigerant condenser
10. Hot gas by-pass valve
11. Air/refrigerant eat exc anger/
evaporator
12. Liquid refrigerant dryer/filter
13. Air/air eat exc anger
14. Accumulator
Fig. 1.2 Air and refrigerant flow diagram
1.4 Automatic regulation system (Fig. 1.2)
T e condenser pressure must be kept as constant as possible
to obtain stable operation, t erefore, fan control switc (S3)
stops and starts t e cooling fan.
W en, at partial or no load, t e evaporator pressure drops to
2.25 bar(e), t e by-pass regulator opens and ot, ig pressure
gas is fed to t e evaporator circuit to prevent t e evaporator
pressure from dropping any furt er.
1.5 lectrical system (Figs. 1.3 up to 1.6)
FD170 60Hz and FD230 60Hz dryers are 3-p ase units, all ot er
FD dryers are single-p ase units.
T e refrigerant compressors (M1) of FD170 and FD230 dryers
are equipped wit a crankcase eater (Rs). W en voltage is
supplied, t e eater is energized. It keeps t e oil in t e crankcase
warm to prevent condensing of refrigerant in t e compressor
ousing, w ic could result in serious damage of t e compressor
at start (liquid knock).
2920 1390 02 5
Instruction book
Fan control switc (S3) starts fan motor (M2) as soon as t e
condenser pressure reac es t e upper set point of t e switc
and will stop t e fan motor w en t e condenser pressure
decreases to its lower set point.
Hig pressure s ut-down switc (S7-Fig. 1.1) stops t e
compressor motor w en t e pressure in t e refrigerant circuit
reac es t e upper set point of t e switc . After tripping, it
must be reset manually by pressing its reset knob.
T e compressor motor as a built-in t ermic protection. If t e
compressor motor stops wit out apparent reason, it will
probably be t e t ermic protection w ic as tripped. In suc
case, t e compressor will restart w en t e motor windings ave
cooled down, w ic may take up to 2 ours.
C1. Start capacitor
C3. Run capacitor
F0. Main fuses, local installation
(customer's installation)
H1. Indicator lamp, VOLTAGE ON
H2. Indicator lamp, DEWPOINT
ALARM (optional)
K1. Timer (optional)
M1. Compressor motor
M2. Condenser fan motor
R. Resistor
R1. Temperature sensor, dewpoint
(optional)
S0. Main switc (customer's
installation)
S1. Button, ON-OFF
S3. Fan control switc
S4. Electronic t ermostat wit
display (optional)
S7. Hig pressure s ut down switc
T1. Transformer (optional)
Y1. Solenoid valve, interval drain
(optional)
Fig. 1.3 Electrical diagram of FD90 up to FD130
2920 1390 02
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Instruction book
B1. Electronic condensate drain
(optional)
C1. Run capacitor
C3. Start capacitor
F0. Main fuses, local installation
(customer's installation)
H1. Indicator lamp, VOLTAGE ON
H2. Indicator lamp, DRYER RUN
H3. Indicator lamp, DEWPOINT
ALARM (optional)
K1. Start relay
M1. Compressor motor
M2. Condenser fan motor
R1. Temperature sensor, dewpoint
(optional)
RS. Crankcase eater
S1. Button, ON-OFF
S3. Fan control switc
S4. Electronic t ermostat wit
display (optional)
S7. Hig pressure s ut down switc
T1. Transformer (optional)
Fig. 1.4 Electrical diagram of FD170 50Hz and FD230 50Hz
F0. Main fuses, local installation
(customer's installation)
F3/4. Fuses
F8. T ermal overload, fan motor
H1. Indicator lamp, VOLTAGE ON
H2. Indicator lamp, DRYER RUN
H3. Indicator lamp, DEWPOINT
ALARM (optional)
K1. Contactor, compressor motor
K2. Contactor, fan motor
M1. Compressor motor
M2. Condenser fan motor
Q1. Circuit breaker
Q2. Circuit breaker
R1. Temperature sensor, dewpoint
(optional)
RS. Crankcase eater
S0. Main switc (customer's
installation)
S1. Button, ON-OFF
S2. Hig pressure s ut down switc
S3. Fan control switc
S4. Electronic t ermostat wit
display (optional)
T1. Transformer (optional)
1x1. Terminal strip
1x2. Terminal strip
Figs. 1.5 and 1.6
2920 1390 02 7
Instruction book
Fig. 1.5 Electrical diagram of FD170 220/440V/60Hz and FD230 220/440V/60Hz
Fig. 1.6 Electrical diagram of FD170 575V/60Hz and FD 230 575V/60Hz
2920 1390 02
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Instruction book
An electronic t ermostat (Fig. 1.7) wit display and alarm
functions is available as an option. Display (3) s ows t e
pressure dewpoint. T e set point value, i.e. t e pressure
dewpoint at w ic t e alarm indicator lamp lig ts up, can be
c ecked by pressing key (5); t e value will blink for approx. 5
seconds on t e display. T e differential value, i.e. t e
temperature difference between alarm on and alarm off, can be
c ecked by pressing key (4); t e value will blink on t e display
for approx. 5 seconds.
Altering t e set point value (indicated "L1")
- Press key (5); t e current value blinks on t e display.
- Press t e up (1) or down (2) key until t e desired value is
reac ed.
- To store t e new value, press key (5) or wait a few seconds.
Altering t e differential value (indicated "HY1")
- Press key (4); t e current value blinks on t e display.
- Press t e up (1) or down (2) key until t e desired value is
reac ed.
- Press key (5) or wait a few seconds to store t e new value.
If t e temperature increases above t e preset value, t e alarm
indicator lamp will lig t up.
1. Key, value up
2. Key, value down
3. Display
4. Key, differential value
5. Key, set point of maximum pressure dewpoint
Fig. 1.7 Detail of electronic dewpoint indicator (optional)
2920 1390 02 9
Instruction book
2 INSTALLATION
2.1 Dimension drawings (Figs. 2.1 and 2.2)
Fig. 2.1 Dimension drawing of FD90 up to FD130
2920 1390 02
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Instruction book
Fig. 2.2 Dimension drawing of FD170 up to FD230
Ce manuel convient aux modèles suivants
4
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