MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series
95
Built-in humidifier: high current
Switch off humidifier
Actual current of humidifier is 130%
higher than standard current for long
time.
Built-in humidifier: no water in the
cylinder(cylinder off)
Switch off humidifier
After water inlet valve is opened,
actual current in humidification state
cannot reach current of evaporating.
Built-in humidifier: low current
Switch off humidifier
Conductivity of water inside humidifier
is lower than
75
μ
S/cm.
High pressure compressor 1 thermal
overload
Switch off compressor 1
Discharge pressure 1 is higher than
top limit of pressure sensor.
High pr compressor 1 thermal
overload
Switch off compressor 1
Pressure protection of compressor 1 is
trigged.
Operating hour threshold reached for
humidifier
Only remind, need to cancel alarm.
Clogged filter
When sensor of filter is trigged and it
keeps 10s, unit alarms.
Water under floor(Serious Alarm)
Switch off unit
Water leakage sensor is trigged.
pLAN disconnected
a. When unit from address U2 to U8
is disconnected from group and it
keeps 60s, unit will alarms.
b. Controller of pLAN address
(except address 1/0) is
disconnected with controller of
address 1 and it keeps 60s, unit
alarms.
Built-in humidifier: high conductivity alarm
Switch off humidifier
Conductivity of water inside humidifier
is higher than
2000
μ
S/cm.
Built-in humidifier: high conductivity
pre-alarm
Conductivity of water inside humidifier
is higher than
1500
μ
S/cm.
Built-in humidifier: low steam production
Switch off humidifier
Built-in humidifier: water drain alarm(cylinder
off
）
Switch off humidifier
After water outlet valve opened,
operates with high current in
humidification state.
Built-in humidifier: cylinder full alarm(cylinder
off)
Switch off humidifier
Non-humidification, the sensor of
water level is trigged.
Built-in humidifier: cylinder being depleted
signal
Humidifier should be maintained.
Built-in humidifier: presence of foam
Foam produce because of
alkalescency water inside humidifier.
Built-in humidifier: cylinder depleted
Humidifier should be maintained.
Built-in humidifier: compulsory maintenance
alarm Cylinder 1
Humidifier already works for 10000h.
Built-in humidifier: recommended
maintenance signal Cylinder 1
Humidifier already works for 2000h. It
should be maintained.
Note:
Ambient temperature: Ta
Setting temperature: Ts
Ambient relative humidity: Ha
Setting relative humidity: Hs
