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8
MICROPROCESSOR CONTROL
1. Cool operation
.
1.) Thermo-regulating function
(1) Thermo-regulating function (Function to prevent restarting for 3 minutes)
When indoor units are connected to the PUHY/PURY/PQHY/PQRY series of outdoor units.
Room temperature ≥ desired temperature + 0.9° F ···Thermo ON
•
Room temperature < desired temperature - 0.9° F···Thermo OFF
•
When indoor units are connected to the PUMY series of outdoor units.
Room temperature ≥ desired temperature + 0.9° F ···Thermo ON
•
Room temperature < desired temperature - 0.9° F···Thermo OFF
•
(2) Anti-freezing control
Detected condition :
•
When the liquid pipe temp. (TH22) is 32° F or less in 16 minutes from compressors start up, anti-freezing control
starts and the thermo OFF.
Released condition :
•
The timer which prevents reactivating is set for 3 minutes, and anti-freezing control is cancelled when any one of
the following conditions is satisfied.
1) Liquid pipe temp. (TH22) turns 50° F or above.
2) The condition of the thermo OFF has become complete by thermo-regulating, etc.
3) The operation modes became mode other than COOL.
4) The operation stopped.
2) Fan
(1) By the remote controller setting (switch of 3 speeds+Auto).
Type
3 speeds + Auto type
When [Auto] is set, fan speed is changed depending on the value of:
•
Room temperature - Desired temperature
Specifications are subject to change without notice.
<How to operate>
1) Press POWER
2) Press the operation
3) Press the
Note:
The set temperature changes 2° F when the
pressed one time. Cooling 67 to 87° F.
Fan speed notch
[Low], [Med], [High], [Auto]
17
button.
ON/OFF
button to display COOL.
MODE
button to set the desired temperature.
TEMP.
button is
TEMP.
© 2017 Mitsubishi Electric US, Inc.
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