Product specifications

3-4
Samsung Electronics
3-2. Outdoor unit controlling spec (Each load controlling condition)
3-2-1 Indoor unit signal(Rooms "B",
and "C" signal)
1 ) On condition : A time point where the
d e s i red temperature at each indoor unit is
+0.5°C against the current temperature .
(When the compressor motor relay of each
assembly main PCB is turned on.)
2) O ff condition : A time point where the
d e s i red temperature at each indoor unit is
against the current temperature. (When the
c o m p ressor motor relay of each assembly
main PCB is turned off . )
3-2-2 SV-BY control
1) On condition :
•When only any one of the two indoor unit
rooms (Rooms B and C) is turned on.
•F o r ce it to operate for about 2 minutes
seconds when both of the two indoor unit
rooms (Rooms B and C) are turned off .
2) O ff condition :
•When all of the two indoor unit rooms
(Rooms B and C) are turned on.
•It is automatically turned off after
operating for about 2 minutes
seconds when all of the two indoor unit
rooms (Rooms B and C) are turned off .
3-2-3 SV-B(Indoor unit room "B"
solenoid valve) control
SV-C(Indoor unit room "C"
solenoid valve) control
1) On condition :
•Only the SV-B solenoid valve operate
when the indoor unit room "B" is turned
o n .
•Only the SV-C solenoid valve operate
when the indoor unit room "C" is turned
o n .
•Both of the SV-B and SV-C solenoid valves
operate when all of the indoor unit room B
and room C are activated.
•When both of the indoor unit room B and
room C are turned off, it is forced to oper-
ate for about 2 minutes seconds.
2) O ff condition :
•The SV-C solenoid valve is turned off
when the indoor unit room "B" is operated.
•The SV-B solenoid valve is turned off
when the indoor unit room "C" is operat-
ed.
•When both of the indoor unit room "B"
and room "C" are turned off, it is automati-
cally turned off after operating for about 2
minutes seconds.
3-2-4 Compressor control
1) F o rce the compressor to stop for 3 minutes
at each indoor unit when applying power to
two rooms of the indoor unit(Room "B", and
room "C"). (Delayed operation for thre e
m i n u t e s )
2) A delay time of about 2 minutes 30 seconds
is set up at the outdoor unit PCB when
turning it off (Both of the rooms B and C are
turned off) by comparing the desired tem-
p e r a t u re at each indoor unit against the
c u r rent temperature .
3) When both rooms (Rooms B and C) of the
indoor unit are turned off, force the com-
p ressor to stop, and then turn on the SV- B Y,
S V-B (room "B" valve), and SV-C (room C
valve) to achieve the pre s s u re balance of the
c o m p re s s o r.
4) When applying the power to the outdoor
unit PCB initially, disre g a rd the time of
f o rcing the outdoor unit compressor (About
2 minutes seconds).
+3 0
- 0
+3 0
- 0
+3 0
- 0
+3 0
- 0
+3 0
- 0