Mitsubishi P336 User Manual

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VII  Control ]

- 106 -

HWE09120

GB

ŒThe defrost cycle ends when 12 minutes have passed since the beginning of the cycle, or when the pipe temperature (TH3) 

has been continuously detected for 4 minutes (when SW3-4 is set to OFF) or 2 minutes (when SW3-4 is set to ON) that ex-
ceeds the values in the table below.

ŒThe defrost cycle will not end for two minutes once started unless one of the following conditions is met : Pipe temperature 

reaches 25°C [77°F] and SW3-4 is set to OFF OR 

 =25+TH7°C [77°F+TH7] and SW3-4 is set to ON.

*1 (5°C [41°F] 

 25°C [77°F]).

ŒIn the multiple-outdoor-unit system, defrosting is stopped on all units at the same time. 

ŒIf a problem is detected during defrost operation, the operation will be stopped, and the defrost prohibition time based on the 

integrated compressor operation time will be set to 20 minutes.

ŒEven when there is a change in the number of operating indoor units during defrost operation, the operation will continue, and 

an adjustment will be made after the completion of the defrost operation.

ŒDefrost operation will be continued, even if the indoor units stop or under the Thermo-OFF conditions until it has run its course.

Model

TH3

SW3 - 4 OFF

SW3 - 4 ON

72 model

10°C [50°F]

5°C [41°F]

96 model

10°C [50°F]

5°C [41°F]

120 model

7°C [45°F]

5°C [41°F]

144 model

7°C [45°F]

5°C [41°F]