Panasonic CS-MP9DD4H5 / CS-MP14DD4H5 / CS-MP18DD4H5 / CS-MP18DD3H5 / CS-MP24DD3H5 / CS-MP24DD2H5 / CS-MP18DB4H5 / CS-MP24DB4H5 Service Manual ▷ View online
2.3. Hide-away Type (Low, Medium Static Pressure)
5
CU-MP28DBH5/CU-MP50DBH5
Test run with wired remote controller
Operation Mode
Heating Cooling
/
/Soft Dry /Auto/Air Circulation
Operation
Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation
High, Med, Low
Auto Fan Speed
Indoor Fan Speed Control
When turning on the unit by heating mode
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
.
Warm boot operation ends when temperature
of indoor heat exchanger reaches 34
of indoor heat exchanger reaches 34
.
Warm Boot Control
Auto Restart Control
Operation will be restarted automatically under
the previous operation mode after a power
failure.
Test Run
Mode
Fan
2.4. Cassette Type
CU-MP28DBH5/CU-MP50DBH5
Test run with wired or wireless remote
controller
Operation Mode
Heating Cooling
/
/Soft Dry /Auto /Air Circulation
Operation
Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation
High, Med, Low
Auto Fan Speed
Indoor Fan Speed Control
When turning on the unit by heating mode
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
.
Warm boot operation ends when temperature
of indoor heat exchanger reaches 34
of indoor heat exchanger reaches 34
.
Warm Boot Control
Auto Restart Control
Operation will be restarted automatically under
the previous operation mode after a power
failure.
Test Run
Mode
Fan
Drain Pump Control
6 minutes of forced operation of drain pump
6
2.5. Wall-mounted Type
CU-MP28DBH5/CU-MP50DBH5
Auto Operation Button
Press this button for auto operation.
Keep the button depressed for 5 seconds
for forced cooling operation and 8 seconds
for forced heating operation.
Operation Mode
Heating Cooling
/
/Soft Dry /Auto/Air Circulation
Operation
Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation
High, Med, Low
Auto Fan Speed
Indoor Fan Speed Control
When turning on the unit by heating mode
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
operation, indoor fan will be activated when
temperature of indoor heat exchanger
reaches 30
.
Warm boot operation ends when temperature
of indoor heat exchanger reaches 34
of indoor heat exchanger reaches 34
.
Warm Boot Control
Auto Restart Control
Operation will be restarted automatically under
the previous operation mode after a power
failure.
Test Run
Mode
Fan
7
Deicing Control
Panasonic
Compressor Delay Control
2 seconds delay startup of compressor
2.6. Outdoor Unit
8
CU-MP28DBH5/CU-MP50DBH5
Time Delay Safety Control
If the compressor is stopped, it will not restart
within 3 minutes.
Outdoor Fan Motor Control
Controlled by outdoor PCB
4-way Valve Control
When the unit is turned off during heating
operation, 4-way valve stays at heating position
for 5 minutes.
Gas By-pass Valve Control
Inner control
Low Heating Load Control
During heating operation, if the temperature of the
indoor heat exchanger is higher than 60
, low
heating load control is activated.
When the temperature decreases to 52
, it will
stop.
To prevent frosting at outdoor heat exchanger during
heating operation.
Discharge Temp Protection Control
If the discharge temperature reaches 120
for
three times, the operation will stop but the
residual heat removal control is still available.
Expansion Valve Control
According to different heat load to adjust the
refrigerant flow rate automatically.
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