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| Air
Conditioner Controller with IR Remote |
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Main
Features |
- Single self contained board with power
supply, relays, display and RC receiver.
Fourteen key feather touch keypad with
LEDs.
- Microchip PIC Slim package microcontroller
with EEPROM memory for parameter storage
during power fail and power down.
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| Key
Functions |
- Power key - Turns on/off
power to the AC [compressor+fan+swing+heater]
only. Display of room temperature is constant
when power is applied to the system and
it is on standby.
- Heat - Pressing this
button starts the heater cycle and the
compressor is turned off. Heater setting
is between 28C to 40C. Operation - Press
Heat button to get into program mode.
The display shows the current heater set
temperature. Press the up/down key to
set the desired temperature. The LED blinks
to indicate programming mode. To exit
the program mode, either press the Heat
key again or wait for 10 seconds. This
feature operation is the same using the
remote control.
- Cool - Pressing this
button allows setting of the cool temperature[AC
temp]. The AC temperature may be set between
18C to 28C. Operation - Press the Cool
button to enter program mode. The LED
blinks to indicate programming mode. The
display shows the current set temperature.
Press the up/down key to set the desired
temperature. To exit the program mode,
either press the Cool key again or wait
10 seconds. The compressor will not turn
on immediately but will wait about 3 minutes.
This is a anti-recycle timer feature built
in to protect the compressor.
- Dry - Pressing this
button turns the AC into a room dehumidifier.
The LED goes ON indicate this mode. This
mode removes the excess humidity in a
room by condensing the excess moisture.
The principle of operation is basically
making the condenser coils cold enough
to cause condensation of moisture. The
fan speed is automatically set to low
so as to allow condensation. The system
has a operation profile built into it.
- Compr On Timer - Pressing
this button allows setting of the compressor
to remain ON. However, the compressor
will follow the temperature setting so
it will actually cycle On and Off in this
mode. The Compressor On Timer may be set
between 00 Hours and 99 Hours. Operation
- Press the Compressor On Timer button
to enter program mode. The LED blinks
to indicate programming mode. The display
shows the current set time. Press the
up/down key to set the desired Time. To
exit the program mode, either press the
Compressor On Timer key again or wait
10 seconds. This setting is stored in
EEPROM memory. If power fails or unit
is turned off during countdown, the timer
is reset and will need to be restarted.
- Compr Off Timer - Pressing
this button allows setting of the compressor
to remain OFF. This timer follows the
compressor ON timer key where after the
compressor On timer counts down to 00,
this timer is turned on. The compressor
will remain off during this time even
if the temperature set limits are exceeded.
The Compressor Off Timer may be set between
00 Minutes and 99 Minutes. Operation -
Press the Compressor Off Timer button
to enter program mode. The LED blinks
to indicate programming mode. The display
shows the current set time. Press the
up/down key to set the desired Time. To
exit the program mode, either press the
Compressor Off Timer key again or wait
10 seconds. This setting is stored in
EEPROM memory. If power fails or unit
is turned off during countdown, the timer
is reset and will need to be restarted.
- Swing - This is used
to turn on or off the swing motor in an
airconditioner. The default mode is OFF
and will need to be turned on whenever
required. The LED goes On to indicate
this mode. This is modifiable as per customer
requiremet. Currently, this setting is
not stored in memory.
- AC off Timer - Pressing
this button allows setting of the AC Off
timer. This timer counts down to turn
OFF the AC after the set time. However,
if power fails during countdown, the remaining
time is not executed and the timer will
need to be restarted when power resumes.
The AC off Timer may be set between 00
Hours and 99 Hours. Operation - Press
the AC off Timer button to enter program
mode. The LED blinks to indicate programming
mode. The display shows the current set
time. Press the up/down key to set the
desired Time. To exit the program mode,
either press the AC off Timer key again
or wait 10 seconds. This setting is stored
in EEPROM memory. If power fails or unit
is turned off during countdown, the timer
is reset and will need to be restarted.
- AC ON Timer - Pressing
this button allows setting of the AC ON
timer. This timer counts down to turn
On the AC after the set time. The AC On
Timer may be set the AC off only. The
AC ON timer LED will glow when the AC
is off and will count down. After the
timer reaches 00, the AC will turn On.
However, if power fails during countdown,
the remaining time is not executed and
the timer will need to be restarted when
power resumes. The AC ON Timer may be
set between 00 Hours and 99 Hours. Operation
- Press the AC ON Timer button to enter
program mode. The LED blinks to indicate
programming mode. The display shows the
current set time. Press the up/down key
to set the desired Time. To exit the program
mode, either press the AC ON Timer key
again or wait 10 seconds. This setting
is stored in EEPROM memory. If power fails
or unit is turned off during countdown,
the timer is reset and will need to be
restarted.
- Fan Hi - The fan is
usually in the Automatic mode. However,
by pressing this button, the fan speed
is forced to the Fan Hi mode. The fan
speed will remain in this mode until the
AC is turned off. If the fan needs to
be reset to Auto mode, the AC will need
to be restarted by powering down and then
up again.
- Fan Med and Fan Low- The operation is the same as Fan Hi.
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| Additional
requirements : |
This
unit may be constructed in two parts.
One part for the display and buttons
and the second part with relays and
power supply. Display will need a plastic
housing and the conrol unit may be housed
in a metal enclosure or within the AC.
A standard IR remote controller with
RC5 code output may be used. |
| What
you can buy : |
- The Schematic diagram
- The PCB layouts
- The programming codes.
- A Buildmet Picstart+ Programmer
- Source codes also available.
- Programmed ICs
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| Note:
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Technology is
provided as-is. Modifications can either
be done yourself, or we can do it on
a chargeable basis. |
| Options
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- Basic technology
- Technology with support for 30
days
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| Price: |
Call
or email us. |
| Delivery: |
Within two weeks
from receipt of advance payment. |
| Payment: |
By Demand Draft
in favor of Buildmet Technologies Pvt.
Ltd, payable at Bangalore, India. |
| Offer
for educational institutions: |
Special offer
of Buildmet Picstart Plus, PIC Builder,
PIC burner, Keeloq Programmer and ICD
on purchase of 2+ sets. |
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