Carrier RAV-SP180UT-UL Service Manual page 60

No. Item
19 Save operation
(Wired remote
controller specific
operation)
20 Auto restart
21 46°F (8°C)
heating/
Frost protective
operation
(Wired remote
controller specific
operations)
Outline of specifications
1) Turn on SAVE button on the wired remote controller.
2) During operation of save operation,
remote controller.
3) During save operation, the current release control is performed
with the restriction ratio set in EEPROM on the outdoor unit.
4) The restriction ratio can be set by keeping
pushed for 4 seconds or more on the remote controller.
5) When validating the save operation, the next operation starts
with save operation valid because contents are held even
when operation stops, operation mode changes or power
supply is reset.
6) The restriction ratio can be set by changing the setup data of
CODE No. (DN) [C2] in the range of 50 to 100%
(every 1%, Setting at shipment: 75%).
1) Object
It restarts the operation automatically after resetting the
unexpected stop of power supply such as power failure.
2) Contents
After returning from a power failure, the auto restart function
reads the operation status from EEPROM and then restarts
the operation automatically according to the operation
contents.
3) Setup of function exchange by wired remote controller
CODE No. (DN): 28
SET DATA
Auto restart
1) This function is intended for the cold latitudes and performs
objective heating operation (46°F (8°C) heating operation).
2) This function is valid only for combination with the outdoor units.
3) Using the indoor CODE No. [D1] (1 bit), Valid/Invalid of this
function is set up at the customer's side.
∗ The setup by CODE No. is Invalid [0]/Valid [1] and Invalid
[0] has been set at the shipment.
4) This operation is the heating operation which sets
46°F (8°C) as the setup temperature of the target.
5) This function starts operation by pushing temperature button
during heating operation; besides by pushing
button for 4 seconds or more after temperature reached the
minimum set temperature.
6) To stop/release this operation, select and execute one from
the following operations.
Q
Push button:
Heating operation (64°F (18°C) setting) continues.
R
Push [START/STOP] button:
Air conditioner stops.
(Heating 64°F (18°C) operation at the next start)
S
Push MODE :
Other operation mode is selected and the operation
continues.
7) As the setup temperature is 46°F (8°C) and the human
heating is not targeted, the cold air discharge preventive
control (Item 7) is made invalid to suppress the intermittent
operation.
8) The settings of the air direction and air volume are
changeable during this operation.
9) The indoor fan stops to protect the compressor for
2 minutes after start of heating operation (Thermo-ON) by
this function.
lights on the wired
SAVE
button
0000 0001
None At shipment
– 60 –
Remarks
Carry out setting
operation during stop of
the unit; otherwise the
unit stops operation.
For the setup operation,
refer to "How to set up
contents of save
operation" of
"10. SETUP AT LOCAL
SITE AND OTHERS".
(Page 131 to 138)
In a group connection,
if there is even one
combination with other
unit, "This function is not
provided." is displayed.
The setup temperature
jumps from [18] to [8].