115
T-305
SECTION 11
TROUBLESHOOTING
NOTE
This troubleshooting chart is to be used with Controlled Atmosphere sections only.
INDICATION/
TROUBLE
POSSIBLE CAUSES
REMEDY/
REFERENCE
SECTION
11.1 CONTROLLED ATMOSPHERE (CA) SYSTEM WILL NOT START
No power to unit
External power source OFF
Turn on
Start-Stop switch (CAS) OFF or defective
Check/Replace
Loss of control power
Fuse blown (F3)
Check
Start-Stop switch (CAS) OFF or defective
Check/Replace
Loss of control power in
respective branch of control
circuit only
Air compressor internal protector (IP-AM) open
Check
High pressure switch (HATS) open
Check
Air compressor hums, but does
not start
Low line voltage
Check
Single phasing
Check
Shorted or grounded motor windings
Check
Air compressor seized
Check
11.2 CONTROLLED ATMOSPHERE (CA) SYSTEM MALFUNCTION
Air compressor will not start
Temperature Controller not configured for CA
Check
CA in STANDBY mode
Check
External power source OFF
Turn on
Air compressor contactor (AC) defective
Replace
Internal protector (IP-AM) open
Replace
Unit at set point
Check
Unit in Pre-trip (Temperature Controller)
Check
Air compressor runs, oxygen %
will not come down
Air compressor off more than 3 minutes
Check
Leaky cylinder head o-ring
Check
Leaky discharge manifold assembly
Check
Leaky air solenoid valve (ASV)
Check
Sensor defective
Check
Membrane defective
Check
Heater defective
Check
Oxygen solenoid valve (OSV) defective
Check/Replace
Heater malfunction
Membrane temperature sensor failure
Replace
Heating element defective
Check
Contactor defective (AH)
Check
Solid State Relay (SSR) defective (AT)
Check
CA in STANDBY mode (refer to section 10.2)
Check
High air temperature switch failure
Replace
Содержание 69NT40-489-100 Series
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Страница 14: ...Safety 10 T 305...
Страница 28: ...4 T 305...
Страница 40: ...16 T 305...
Страница 50: ...26 T 305 Figure 12 Standard Configuration Report...
Страница 112: ...88 T 305...
Страница 163: ...139 T 305 CFS KA6 CFA1 QC1 FDH HST RRS SINGLE SENSOR ONLY Figure 88 Wiring Diagram Sheet 2 of 2...
Страница 164: ...140 T 305...
Страница 167: ...143 T 305 Based on drawings 62 10526 Rev and 62 10736 Rev Figure 90 Electrical Schematic CA...
Страница 168: ...144 T 305 ALTERNATE CONFIGURATION Figure 91 Electrical Wiring Diagram Controlled Atmosphere Sheet 1 of 2...
Страница 169: ...145 T 305 F Figure 88 E Figure 88 Figure 91 Electrical Wiring Diagram Controlled Atmosphere Sheet 2 of 2...
Страница 172: ...148 T 305 Figure 93 Electrical Wiring Diagram Sheet 1 of 2 Units not modified to include the N2 Purity Solenoid Valve...
Страница 174: ...150 T 305...