Gas Depletion Alarm; When Cooling; When Heating - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 44 Monday, November 6, 2000 4:13 PM
Functions

1.15 Gas Depletion Alarm

An alarm (U0) is given for severe gas depletion. Alarm is indicated but operation continues.

When cooling

When heating

44
While compressor is running
and
Low pressure < 1.0 kg/cm ²
Gas depletion alarm cancellation
While compressor is running
and
4-way valve ON (heating cycle)
and
Evaporator outlet superheat
temperature > 20˚C difference
and
Outdoor unit electronic expansion
valve = 2000 pulses (completely open)
Gas depletion alarm cancellation
Gas depletion alarm (U0) is displayed.
Conditions given on the
left continue for 30 min.
Gas depletion alarm (U0) is displayed.
Conditions given on the
left continue for 60 min.
4-way valve OFF (cooling cycle / defrost)
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SiE-05C
Compressor off
or
Low pressure Lp ≥ 1.0 kg/cm ²
(VF008)
Compressor off
or
or
Evaporator outlet superheat
temperature ≤ 20˚C difference
or
Outdoor unit electronic expansion
valve < 2000 pulses (Fully open)
(VF009)
Functions Inverter K Series