Operating Instructions
6-17
DEFROST TIMER.
A solid-state defrost timer automatically places the unit on Defrost every 2, 4, 8 or 12 hours, depending on
the interval selected. On TG-VI, MT µP-IV, µP-V, µP-VI , SR-2 and SR-3 controllers, the defrost timer function is built into the
controller menu display.
HEAD PRESSURE CONTROL SWITCH (HPCS).
On SPECTRUM models with a Multi-Temp MT µP-IV controller, this
switch confirms the operation of the receiver tank pressure solenoid and purge valve to control the refrigerant discharge pressure
when a zone is in the Heat or Defrost mode.
DISCHARGE PRESSURE SENSOR.
This sensor monitors refrigerant pressure in the discharge line to control the discharge
pressure when a zone is in the Heat or Defrost mode. (Not available on some units)
Содержание SLXi Spectrum
Страница 17: ...Safety Precautions 2 5 Warning Decals...
Страница 18: ...Safety Precautions 2 6 Warning Decals Information Decals...
Страница 74: ...Unit Description 5 30...
Страница 128: ...Controller Operation 7 28...
Страница 156: ...Electrical Maintenance 8 28...
Страница 177: ...Engine Maintenance 9 21 Integral Fuel Solenoid Components 1 Integral Fuel Solenoid 2 O ring 3 Fuel Injection Pump Groove...
Страница 234: ...Refrigeration Maintenance 10 22...
Страница 309: ...13 Mechanical Diagnosis TK 482 TK 486 and TK 486V Engines 13 2...
Страница 316: ...Mechanical Diagnosis 13 8...
Страница 322: ...Refrigeration System Diagnosis 14 6...
Страница 332: ...Single Temperature Refrigeration System Diagrams 15 10...
Страница 339: ...Multi Temperature Refrigeration System Diagrams 16 7...
Страница 340: ...Multi Temperature Refrigeration System Diagrams 16 8...
Страница 342: ...Wiring Diagrams and Wiring Schematics 17 2...