Sleep Mode - Fisher PTTW-10-EC Series Engineering Manual

Through the wall air conditioners

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THROUGH THE WALL UNIT

2.2.7 SLEEP MODE

2.2.7.1 Sleep mode will only function under heating, cooling, and auto heat/cool modes.

2.2.7.2 In cooling mode, at the beginning of sleep function, if room temperature＞ setting

temperature, the compressor and outdoor fan will start normally. Indoor fan motor will run in

low speed. The four-way valve will be closed. If room temperature≤ setting temperature, the

unit will start sleep mode. Fan speed will be set at low speed. Air flow direction can be

adjusted or stay in one position.

2.2.7.3 In heating mode, at the beginning of sleep function, if room temperature ＜ setting

temperature, the compressor, outdoor fan and four-way valve will start normally. Indoor fan

motor will run in low speed. If room temperature ≥ setting temperature, the unit will start sleep

mode. Fan speed will be set at low speed. Air flow direction can be adjusted or stay in one

position.

NOTE: When Timer and Sleeping function are set at the same time, the unit will work with

Timer function

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