Safety Devices - Carrier VECTOR 6500 Operation & Service Manual

2.13 SAFETY DEVICES

The system is protected from high pressure conditions which may occur when exposed to very high temperatures
(such as a fire) by a fusible plug mounted in the receiver. Under very high temperature conditions (refer to Section
2.10) the plug will melt, releasing the refrigerant pressure.
System components are protected from damage caused by unsafe operating conditions by automatic shut-down of
the unit when such conditions occur. This is accomplished by the safety devices listed in the following table.
Unsafe Conditions
Excessive operating pressure
Excessive current draw by microprocessor
Excessive current draw by speed relay
Excessive current draw by run relay
Excessive current draw by battery output
Excessive current draw by control circuit
Excessive current draw by battery charger in-
put - 20 amp charger.
Excessive current draw by battery charger in-
put - 40 amp charger(s).
Excessive current draw by generator/power
supply contactors
Excessive current draw by evaporator heaters
Excessive current draw by fuel heater circuit
Excessive current draw by fuel level sensor
circuit
Excessive current draw by evaporator or con-
denser fan motor
Excessive condenser fan motor winding
temperature
Excessive compressor motor winding
temperature
Excessive evaporator motor winding
temperature
NOTE: When a second 20 amp rated charger is used to charge a lift gate battery, the higher rated fuse is installed
9
Safety Device
High Pressure Switch
(HPS)
Fuse (F1)
Fuse (F2)
Fuse (F3)
Fuse (F5)
Fuse (F6)
Fuse (F7, F8)
Fuse (F7, F8, F29)
Fuse (F9)
Fuse (F10/F11/12)
Fuse (F19)
Fuse (FLS)
Fuse (F26/F27/F28)
Internal protector
Internal protector
Internal protector
2−19
Device Setting
Refer to Section 2.10
Opens at 7.5 amps
Opens at 10 amps
Opens at 7.5 amps
Opens at 80 amps
Opens at 15 amps
Opens at 3 amps (single charger) OR
opens at 6amps (dual chargers)
See note.
Opens at 5 amps (timed)
Opens at 10 amps
Opens at 12 amps
Opens at 20 amps
Opens at 3 amps
Opens at 12 amps
Auto reset
Auto reset
Auto reset
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