Johnson Controls HVAHP048B21S - Standard Operation Sequence

OUTDOOR UNITS
TC-16001-rev.5
2-15
n
Cooling Operation
Power to
I.U.: ON
Press
Temp. Setting
Switch
Press
RUN/STOP
Switch
Press
Fan Speed
Switch
Power to
O.U.: ON
Set
Operation Mode
to “COOL”
Power to
O.U. PCB: ON
Temp. at To p
of Compressor
< 86
o
F (30
o
C)
or
< Outdoor Temperature +45
o
F (+25
o
C)
> 86
o
F (30
o
C)
and
> Outdoor Temperature +45
o
F (+25
o
C)
Power to
I.U. PCB: ON
Power to YH2
in I.U.: OFF
only for indoor unit
with auto-louver
Auto-Louver
0 Reset
Start of Communication between
O.U. and I.U.
Start of Communication between
I.U. and Wired Controller
ON
(Lower than
Activation Level)
OFF
(Higher than
Activation Level)
Power to YH2 in
I.U.: ON
FS
for unit with drain pump
“COOL” Indication
“LOW” Indication
Run Indicator: ON
“MEDIUM”
Indication
Power to YH2 for 20 sec.
LOW
HIGH
(HIGH 2)
MED
Switch: To increase Set Temp.
Switch: To Decrease Set Temp.
Fan Speed
Switch
Cooling
Operation
> Set Te mp.
< Set Temp.
> 23
o
F
(-5
o
C)
< 23
o
F (-5
o
C)
No
Yes
I.U. Air
Inlet
Temp.
Outdoor
Temp.
Elapsed Time:
1sec.
to 1
Press
AUTO-LOUVER
Switch
< Alternately >
Start of
Auto-Louver
Stop of
Auto-Louver
only for Decorative Panel
or Indoor Unit
with Auto-Louver
Indication
of Set Temp.
“HIGH (HIGH 2)”
Indication
Power to
YH2 : ON
for unit with drain pump
Power to
Y52C :
ON
MIF Operation at
Set Fan Speed
Power to
CMC :
ON
Power to CH : ON
Power to CH : OFF
MD Operation: ON
I.U. : Indoor Unit
O.U. : Outdoor Unit
: Actuator (refer to Table 2.1)
MC Operation: ON
MOF Operation: ON
MD Operation: ON
2.11.3 Standard Operation Sequence