Carrier TRANSICOLD 69UG15, Руководство по эксплуатации и обслуживанию

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3–3 T-375
4. With the Intake Heater Switch (HS) held in the PREHEAT position, place the Ignition Switch (IGN) in the
START position.
5. After the engine has started, continue to hold the Intake Heater Switch (HS) in the PREHEAT position until
the engine develops sufficient oil pressure to close the Oil Pressure Safety Switch (approximately 5
seconds). When released, the Intake Heater Switch (HS) will automatically return to the OFF position and the
heater will remain energized for 3 minutes.
3.3.3 Post-Start Inspection
1. Allow the Genset unit to run for at least 2 minutes.
2. Turn on Circuit Breaker CB-1.
3. Check generator output with a volt meter. Voltage output at start up with no load at 50Hz operation should be
1500 RPM, 360-460 VAC. Voltage output may vary and fall with ISO specifications based on ambient (see
Table 2–3 ).
4. Start the refrigeration unit.
5. Run the engine for 10 minutes (check total time meter operation).
6. Listen for abnormal bearing noise (AC generator).
7. Check the fuel lines, lube oil lines, and filters for leaks.
8. Check the exhaust system for leaks.
3.3.4 Stopping Instructions
1. Place Circuit Breaker CB-1 in the OFF position.
2. Place the Ignition Switch (IGN) in the OFF position.
3.4 Sequence of Operation
With the Intake Heater Switch (HS) held in the ON position, current flows through the ammeter to the Intake Heater
(IH). While the heater is on, the ammeter will show a 42-amp draw.
A second set of contacts also energizes the Safety Relay (S).
If the High Water Temperature Switch (HWT) opens to break the safety relay ground connection, the Safety Relay
(S) will not energize, and the engine will not start.
To start the engine, the Ignition Switch (IGN) is held in the START position. With the switch in the START position,
current flows to the Starter Solenoid (SS), through the SS contacts to the Starter Motor (SM). Current then flows to
the Intake Heater Timer (IHT), Intake Heater Relay (HR) and to the heater, while simultaneously powering the
Electronic Governor Module (EG), Fuel Solenoid (FS), and Engine Speed Sensor (ESS).
The Starter Motor (SM) turns over the engine resulting in pumping of fuel to the engine cylinders by the injection
pump. This fuel is ignited by heat of compression; thus starting the engine. When the engine has developed
sufficient oil pressure, the Low Oil Pressure Switch (LOP) contacts close to maintain power to the Safety Relay (S).
Once the engine has started, the Intake Heater (IH) will remain energized for 3 minutes.
The Ignition Switch (IGN) will be released. The Intake Heater Switch (HS) will be held for 5 seconds, then released
after the Ignition Switch (IGN) is released. When the START switch is released, the starter will be disengaged.
With the engine running, the battery charger provides DC power to operate the control system and charge the
battery.
Table 3–1 Cold Engine Preheat Times
Ambient Temperature Time
26°C 5 seconds
0° to 26°C 10 seconds
-8° to 26°C 20 seconds
Below -8°C 30 seconds