Torque Values; Safety Devices; Table 2-8 Safety Devices - Carrier Supra 950MT Operation & Service Manual

2.7.7

Torque Values

Assembly
Power Tray to Frame
Standby Motor to Power Tray
Engine to Power Tray
Compressor to Power Tray
Standby Motor Pulley
Engine Pulley
Compressor Pulley
Evaporator Fan Motor
Evaporator Fan Grille
Condenser Coil to Chassis
Tensioner to Power Tray
Engine Support
Condenser Fan Blade
Engine Clutch
2.8

SAFETY DEVICES

System components are protected from damage caused by unsafe operating conditions by automatically shutting
down the unit when such conditions occur. This is accomplished by the safety devices listed in the following table.
Unsafe Conditions
Low engine lubricating oil pressure
High engine cooling water temperature
Excessive current draw by glow plug circuit, control
circuit or starter solenoid (SS)
Excessive current draw by microprocessor
Excessive current draw by control circuit
Excessive current draw by speed control solenoid
Excessive compressor discharge pressure
Excessive compressor discharge temperature
ft-lb
40
40
50
40
36.8
22
22
13
7
7
22
40
18
22
Table 2–8 Safety Devices
Oil pressure safety switch OP automatic reset (Refer to
Section 2.7.3)
Water temperature sensor (WTS) (Refer to
Fuse (F1)
Fuse (F2)
Fuse (F3)
Fuse (F4)
High pressure cutout switch HP automatic reset (Refer to
Section 2.7.5)
Compressor discharge temperature sensor (CDT) (Refer
to Section 2.7.5)
Nm
54
54
67.8
54
49.7
30
30
17.6
9.4
9.4
3.0
5.5
24.4
29
Safety Device
Section 2.7.2)