McQuay MLCV Guia de Resolução de Problemas descarregar pdf (Página 19)

Sequential Controller

(Standard for cooling and heatpump)

Sequential Controller LCD Display

A : Time display

B : Error indication

C : Compressor running display (up to 4 compressors)

D : Key lock display

E : Heater display (up to 2 heaters)

F : Energy saving mode display

G : Compressor defrost cycle display (up to 4 compressors)

H : Operation mode display

I : Temperature set display

1. ON/OFF key

Press once to start the air conditioning unit.

Press again to stop the unit.

The operation lamp next to the key lights up and goes off respectively when the unit is

running or not running.

Caution : In the case when the ON/OFF key is pressed immediately after the operation

is stopped, the unit will not restart until 3 minutes later to protect the compressor.

2. Selecting Operation Mode

Press the MODE key to select the type of operating mode. Consecutive press of the key

switches the operation over "COOL", "HEAT", "AUTO" and "FAN"

3. SAVE Mode

Press the SAVE key to select the energy saving function. This option is only available

for "COOL", "HEAT" and "AUTO" modes.

4. Auxiliary Electric Heater

If the "HEAT" mode provides insufficient heating to a room even at the highest

temperature setting (30°C), press the HEATER key to activate the auxiliary electric

heater. For models with two heaters, consecutive press of the key allows the selection of

one or both heaters active.

5. Temperature Setting

To set the desired room temperature, press or to increase or decrease

the set temperature in the range of 16°C to 30°C.

Press both and simultaneously to toggle between °C and °F setting.

6. Time Setting

Real time Clock

Press the CLOCK key once to activate set clock mode.

Press again to disable set clock mode.

Under set clock mode, the time of the present day can be set by pressing the respective

MINUTE, HOUR and DAY key.

7-days timer

Press the ON TIMER key to activate auto-ON timer mode. Under this mode, press the

respective MINUTE, HOUR and DAY key to select the time of the week when the air-

conditioning unit is to automatically start running. Press the ON TIMER key again to

save the setting.

Press the OFF TIMER key to activate auto-OFF timer mode. Under this mode, press the

respective MINUTE, HOUR and DAY key to select the time of the week when the air-

conditioning unit is to automatically stop running. Press the ON TIMER key again to

save the setting.

Then to activate the 7-days timer, press and hold the TIMER ACTIVE key until the word

"TIMER ACTIVE" appears on the LCD screen. Repeat the same step to disable the 7-

days timer.

7. Other Function

Key Lock

Press the MINUTE key 3 times consecutively to activate the key lock. A "KEY LOCK"

symbol will appear on the LCD screen. At this point, only the ON/OFF key is valid.

To disable the key lock, again press the MINUTE key 3 times consecutively.

Test run

Press the TEST key 2 times consecutively to test run the unit.

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