Night Setback Operation; Silent Operation - Mitsubishi Heavy Industries SRK20ZT-WA User Manual

NIGHT SETBACK operation

■ During the cold season, the room temperature can be maintained at a comfortable level during the absence, at night, and while the room
is unattended. The air-conditioner maintains the constant temperature at about 10 °C.

SILENT operation

■ When the SILENT operation is set, the unit operates more silently to reduce noise from the outdoor unit.
When the air-conditioner is turned off, start the operation from Step 1. When the air-conditioner is running, start from Step 2.
1
Press the NIGHT SETBACK button.
Every time the NIGHT SETBACK button is pressed, the display is switched
in the order of:
(NIGHT SETBACK on)
How to cancel
Press the NIGHT SETBACK button or MODE button to turn off the NIGHT
SETBACK display.
NOTICE
 During NIGHT SETBACK operation, the air-conditioner maintains the set
temperature at about 10 °C.
 During NIGHT SETBACK operation, temperature settings cannot be made.
 Since the room temperature may change quite a bit, it is recommended
that this be used when no one is in the room.
 During NIGHT SETBACK operation, HIGH POWER and ECONOMY
operations cannot be set.
 When NIGHT SETBACK operation is canceled by pressing the NIGHT
SETBACK button, the operation mode is reset to the mode immediately
prior to the NIGHT SETBACK operation.
 With this function, the air-conditioner maintains the room temperature at
10 °C during cold seasons (heating operation).
The air-conditioner does not maintain the temperature at 10 °C during
the hot/warm seasons (cooling operation).
When the room temperature is higher than 10 °C, the fan will stop or
operate at a low speed.
1
Press the ON/OFF button.
2
Press the SILENT button.
When the operating mode is AUTO, COOL, HEAT or NIGHT SETBACK
Every time the SILENT button is pressed, the display is switched in the order of:
(SILENT on)
How to cancel
Press the SILENT button to turn off the SILENT display.
NOTICE
 During SILENT operation, the maximum cooling and heating capacities
deteriorate.
 SILENT operation will not function during DRY and FAN operation.
 In case of following operations, the air-conditioner will resume SILENT
operation whenever it turns ON again.
① When the air-conditioner is stopped by ON/OFF button during SILENT
operation.
② When the air-conditioner is stopped in SLEEP or OFF TIMER
operation during SILENT operation.
③ When the operation is retrieved from SELF CLEAN or ALLERGEN
CLEAR operation.
 Not operable while the air-conditioner is OFF.
 The noise level of the outdoor unit may not decrease depending on the
condition.
 In the case of connecting to the specific outdoor unit (SCM40/45ZS-S,
SCM100/125ZM-S), SILENT control function becomes invalid.
EN-26
No display
(NIGHT SETBACK off)
No display
(SILENT off)