Carrier 40MAHB Series Service Manual page 11

40MAHB: Service Manual
Evaporator Anti-Freezing Protection
The evaporator anti-freezing protection condenser high temperature
protection and outdoor unit frequency limit are active and the same as that
in the COOLING mode.
Outdoor Fan
The outdoor fan operates the same as in the COOLING mode.
Forced Operation Function
When the air conditioner is off, press TOUCH to engage the
AUTO mode. Press TOUCH again within 5 seconds to engage the
Forced
COOLING mode. In the
or any other operation mode, press TOUCH to turn off the air
conditioner.
Forced Operation Mode
Forced
In the OPERATION mode, all the general protections and the
remote controller are available.
Operation Rules
Forced Cooling Mode
The compressor runs at the F2 frequency and the indoor fan runs in the
BREEZE mode. After running for 30 minutes. the air conditioner enters
the AUTO mode at the 75.2F(24C) setting temperature.
Forced Auto Mode:
Forced
The AUTO mode is the same as the normal AUTO mode with a
75.2F(24C) setting temperature.
Forced DEFROSTING Mode:
1. Press and hold AUTO/COOL for 5s to enter the mode. The indoor fan
stops and the defrosting lamp
controller to exit this mode and turn off the air conditioner to stop the
normal DEFROSTING mode.
Forced
2. To exit the DEFROSTING mode, press and hold AUTO/
COOL for 5s again.
AUTO-RESTART Function
The indoor unit is equipped with the AUTO-RESTART function,
which is carried out through an auto-restart module. In the event of a
sudden power failure, the module memorizes the setting conditions prior
to the power failure. The air conditioner resumes the previous operation
setting (not including the SWING function) automatically three (3)
minutes after the power returns.
If the memorization condition is the
conditioner runs in the COOLING mode for 30 minutes and turns to the
AUTO mode at the 75.2F(24C) setting temperature. If the air
conditioner is off before the power turns off and the air conditioner is
required to start up, the compressor delays start-up for 1 minute before
powering on. In other instances, the compressor waits three (3) minutes
before restarts.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Forced
Forced Forced
AUTO, COOLING
illuminates. Use the remote
Forced
COOLING mode, the air
Refrigerant Leakage Detection
With this new technology, the display area displays "EC" when the
outdoor unit detects a refrigerant leak. This function is only active in the
COOLING mode. The function can further prevent the compressor from
being damaged by a refrigerant leak or a compressor overload.
• Open Condition: When the compressor is active, the value of the coil
temperature of evaporator T2 experiences no to very little change.
Louver Position Memory Function
When starting the air conditioner again after a shut down, the louver
returns to the angle originally set by the user, however the precondition is
that the angle must be within the allowable range. If the louver exceeds
the allowable range, the air conditioner memorizes the maximum angle of
the louver. During operation, if the power fails or the end user shuts down
the air conditioner in the TURBO mode, the louver returns to the default
angle.
46F (8C) Heating
When the compressor is running, the indoor fan motor runs without the
ANTI−COLD air function. When the compressor is off, the indoor fan
motor is off.
Silence Operation
Press SILENCE on the remote controller to initiate the SILENCE
function. When SILENCE is activated, the compressor running
frequency remains lower than F2 and the indoor unit emits a faint breeze,
which reduces the noise to the lowest level and creates a quiet and
comfortable room for the user.
Inquiry Mode
Press and hold together the On/Off and Fan buttons for 8 seconds. The
remote control remains in Inquiry Mode for 1 minute if no button is
pressed. In the Inquiry Mode, the remote display cancels all icons except
AUTO, COOL, DRY, HEAT and battery strength. The digital display
defaults to "0" upon entering the Inquiry Mode. In Inquiry Mode, each
digital code (from 0 to 30) is accessed by pressing the UP or DOWN
arrow.
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