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Refrigeration Maintenance
135
The discharge pressure regulator valve is not
repairable and must be replaced as an assembly.
Refrigeration System Checks
NOTE: The Scroll compressor can not be
pumped down. Check the compressor efficiency
using the following procedure.
1. Install a gauge manifold set. Attach the
compound (low pressure) gauge to the service
port on the suction service valve. Attach the
high pressure gauge to the discharge service
port. A low loss fitting must be used on the
hose connected to the discharge service port.
2. Run the unit with all zones in high speed cool
until the system pressures stabilize.
3. Note the head pressure on the high pressure
gauge.
4. Cover the condenser and check the head
pressure. The compressor should be able to
increase the head pressure at least 100 psig
(689 kPa). The compressor is probably faulty
if it cannot raise the head pressure 100 psig
(689 kPa).
Check the rest of the system by checking the
system pressures and the refrigerant flow in heat
and cool. The suction and discharge pressures
should be within the normal ranges for a standard
unit. Check the temperatures of the refrigeration
lines by hand to check the refrigerant flow.
Содержание SPECTRUM TS 30 SR NAD
Страница 4: ...4 ...
Страница 10: ...Table of Contents 10 ...
Страница 20: ...Safety Precautions 20 ...
Страница 51: ...Unit Description 51 Figure 19 Front View Figure 20 Back View AJA1350 AJA1500 ...
Страница 52: ...Unit Description 52 1 On Off Switch Figure 21 Side View 1 ...
Страница 60: ...Unit Description 60 ...
Страница 80: ...SPECTRUM TS Operation 80 ...
Страница 90: ...Electrical Maintenance 90 ...
Страница 100: ...Engine Maintenance 100 Figure 130 Early TK 3 95 Fuel and Oil System Components ...
Страница 102: ...Engine Maintenance 102 Figure 131 Late TK 3 95 Fuel and Oil System Components ...
Страница 104: ...Engine Maintenance 104 Figure 132 TK376 Fuel and Oil System Components ...
Страница 136: ...Refrigeration Maintenance 136 ...
Страница 156: ...Hilliard Clutch Maintenance 156 ...
Страница 158: ...Structural Maintenance 158 ...
Страница 168: ...Remote Evaporator Specifications 168 ...
Страница 170: ...Remote Evaporator Maintenance Inspection Schedule 170 ...
Страница 176: ...Remote Evaporator Electrical Maintenance 176 ...
Страница 180: ...Remote Evaporator Refrigeration Service Operations 180 ...
Страница 182: ...Remote Evaporator Structural Maintenance 182 ...
Страница 184: ...Remote Evaporator System Diagnosis 184 ...
Страница 188: ...Wiring and Schematic Diagrams Index 188 ...
Страница 189: ...189 Wiring Diagram Page 1 of 4 ...
Страница 190: ...190 Wiring Diagram Page 2 of 4 ...
Страница 191: ...191 Wiring Diagram Page 3 of 4 ...
Страница 192: ...192 Wiring Diagram Page 4 of 4 ...
Страница 193: ...193 Schematic Diagram Page 1 of 3 ...
Страница 194: ...194 Schematic Diagram Page 2 of 3 ...
Страница 195: ...195 Schematic Diagram Page 3 of 3 ...
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