Operation Flowcharts PACD011001C2
326 Troubleshooting Urban Multi “MX1R, ME1R Series” Using R-407C
Preset temperature
Intake air temperature
a = b = 1 (a = b = 0.5 possible for CS-LM, CS-UM, CS-TM, CS-DM only.)
Cooling operation
Auxiliary electric heater (52H): OFF
Swing flap
Program dry display: Cancelled
Set direction of air flow
Swing flap?
Recycling guard timer
ON (5 minutes)
Program dry on/off? Program dry in operation
Moisture prevention
conditions?
Moisture prevention position
Cassette: P1
Suspended :P0
YES
YES
NO
OFF
NO
ON
YES
ON
YES
YES
∗4
∗5
∗6
Option
Option
Option
Option
NO
Fan M1F operating at set
volume of air flow
Drain-up kit M1P : OFF after 5
minutes residual operation
Frost
prevention operation
in progress?
Test run in progress?
Thermostat status?
Drain-up kit Y1E : ON
OFF
Drain-up kit M1P : OFF after 5
minutes residual operation
Electronic expansion valve
Y1E : OFF
Thermostat on operation signal to
outdoor unit: Cancelled
Electronic expansion valve Y1E:
Capacity control
Thermostat ON operation signal
to outdoor unit: Output
Drain-up kit M1P : ON
A
(M053)
NO
NO
∗
4 If the evaporator inlet temperature is -5°C or lower for a total of 10 minutes, or is -1°C or lower for a
total of 40 minutes, frost prevention operation is initiated. Normal operation resumes when the
temperature is +7°C or higher for 10 consecutive minutes.
∗
5 Thermostat status
∗
6 The drain-up kit is standard equipment for models CS-LM, CS-UM, CS-DM, and CS-FM.
To Next Page
Loading...
