• Compressor synoptic
• ExV (electronic expansion valve) synoptic
6.4.1 Synoptics menu
Display (mask No.)
Description
Synoptic (SY01)
Unit synoptic
1. Request of unit.
2. Antifreeze limitation: when the temperature
after the evaporator is decreasing, there is a
proportional function to avoid the freeze on the
coil.
High pressure limitation: there is proportional
function that limits the request in the case that the
high pressure is increasing.
Synoptic (SY02)
Compressor synoptic
1. Compressor request for thermoregulation.
2. Compressor status in rps and percentage.
3. Discharge gas temperature zone:
• DZ1: Ok — zone within operating limits.
• DZ2: Controlled — BLDC compressor decrease
acceleration speed.
• DZ3: Limited — BLDC compressor reduce
power.
1. Envelope zone:
• EZ1: Ok: zone within operating limits.
• EZ2: HiDP: High compression ratio.
• EZ3: HiDPscgP: High condensation
temperature.
• EZ4: HiCurr: High motor current.
• EZ5: HiSuctP: High suction pressure.
• EZ6: LoDP: Low differential pressure.
• EZ7: LoPRat: Low compression ratio.
• EZ8: LoDscgP: Low condensation pressure.
• EZ9: LoSuctP: Low evaporation pressure.
Synoptic — ExV (SY03)
1. Valve opening percentage and steps.
2. Valve status:
• Close: Valve closed.
• Std-by: valve in standby.
• Pos: Valve in positioning.
• Wait: valve in activation.
• On: valve in control.
• Init: driver initialization.
Operation and Maintenance Instructions
209531
15
Systemair AB
