Trane Technologies Thermo King A Series, Руководство оператора

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TK 61738-2-OP-EN 27
Unit Protection Devices
P Prre eh he ea att B Bu uzzzze err:: The preheat buzzer sounds when the controller energizes
the preheat relay. This warns anyone near the unit that the controller is
about to start the engine.
C Co oo olla an ntt L Le ev ve ell S Sw wiittcch h:: The coolant level switch closes if the coolant level
drops below an acceptable level. If it stays closed for a specified time, the
microprocessor records and alarm code.
E En ng giin ne e C Co oo olla an ntt T Te em mp pe erra attu urre e S Se en nsso orr:: The microprocessor uses the engine
coolant temperature sensor to monitor the engine coolant temperature. If
the engine coolant temperature rises above an acceptable level, the
microprocessor records and alarm code. The microprocessor might also
shut the unit down.
H Hiig gh h P Prre essssu urre e C Cu utto ou utt S Sw wiittcch h:: The high pressure cutout switch is located
on the compressor discharge manifold. If the compressor discharge
pressure becomes excessive, the switch opens the circuit to the run relay to
stop the unit. The microprocessor will record an alarm code.
H Hiig gh h P Prre essssu urre e R Re elliie eff V Va allv ve e:: This valve is designed to relieve excessive
pressure in the refrigeration system. It is located on the receiver tank. If the
high pressure relief valve opens, much of the refrigerant will be lost. Take
the unit to a Thermo King dealer if this occurs.
L Lo ow w O Oiill L Le ev ve ell S Sw wiittcch h:: The low oil level switch closes if the oil drops below
an acceptable level. If it stays closed for a specified time, the microprocessor
shuts the unit down and records an alarm code.
L Lo ow w O Oiill P Prre essssu urre e S Sw wiittcch h:: The low oil pressure switch closes if the oil
pressure drops below an acceptable level. If it stays closed for a specified
time, the microprocessor shuts the unit down and records an alarm code.
O Ov ve errllo oa ad d R Re ella ay y -- A Au utto om ma attiicc R Re esse ett ((E Elle eccttrriicc S Stta an nd db by y u un niittss)):: An overload
relay protects the standby electric motor/generator. The overload relay
opens the circuit to the electric motor if the motor overloads for any reason
(e.g., low line voltage or improper power supply) while the unit is on electric
standby operation. The microprocessor will record an alarm code.
S Sm ma arrtt F FE ET Tss:: Smart FETs in the microprocessor protect some circuits and
components from an overcurrent condition.
F Fu usse ess:: Fuses are located in harnesses and in the Power Distribution Module
(PDM). All fuses must be serviced only by qualified Thermo King technicians.
Contact your nearest Thermo King Dealer for assistance.
U Un niitt D De essccrriip pttiio on n