Temporary Operation - Carrier 42NQV009E Service Manual

8-2-4. Automatic operation
(1)
As shown in Fig. 8-2-9, the operation mode
(COOL, DRY, HEAT) is selected according to the
Preset temperature and room temperature when
the operation has started.
−
If room temperature is higher than 1°C of perset
temperature. "Cooling" operation is performed.
If room temperture is within 1°C of perset
−
temperature. "Fan only" operation is performed.
(at UL speed).
− If room temperture is lower than 1°C of perset
temperture. "Heating operation is performed.
Ta
Cool Operation
Ts+1
Ts
Fan Only
Ts-1
Heat Operation
Fig. 8-2-9

8-3. Temporary Operation

•
Temporary Auto operation, existence of Auto
Restart, and Temporary Cooling operation can be
set by the [TEMPORARY] button of the indoor
controller.
[TEMPORARY] button
Fig. 8-3-1
OFF → ON
After pushing button
for 3 seconds
After pushing button
for 10 seconds
8-3-1. Temporary auto operation
•
When the [TEMPORARY] button is pushed, the
Auto operation with set temperature fixed at 25°C
starts. Controlling is same as that of Auto opera-
tion by the remote controller.
•
When the [TEMPORARY] button is pushed again,
the operation stops.
•
During Temporary Auto operation, operation by the
remote controller is accepted.
•
Using the Auto Restart function, the Temporary
Auto operation starts when power failure is reset.
8-3-2. Temporary cooling operation
•
When the [TEMPORARY] operation button keeps
pushed for 10 seconds, Cooling operation of
which compressor motor speed and the indoor fan
speed are fixed starts.
Compressor motor speed : 38NYV009E = 28 rps
Indoor fan speed : Low
•
When the [TEMPORARY] operation button is
pushed again, the operation stops.
•
Auto Restart function is unavailable.
− 32 −
FILE NO. SVM-07018
Table 8-3-1
Control
Temporary Auto operation start
Auto Restart
control select
Temporary Cooling
operation start
: 38NYV012E = 30 rps