DOAS
2-14
TC-16005-rev.2
2.11.4 Standard Operation Sequence
■ Cooling Operation
■ Heating Operation
(1) Control Flowchart
DOAS inlet air is outdoor air.
As long as DOAS outdoor air inlet temperature does not reach the setting temperature of the controller,
thermo-OFF is not available and the operation is continued.
In addition, outdoor airflow directly into the indoor unit during thermo-OFF.
NOTE:
Thermo-ON: The outdoor unit and some indoor units are running.
Thermo-OFF: The outdoor unit and some indoor units stay on, but do not run.
> 32
o
F (0
o
C)
< 32
o
F (0
o
C)
< 68
o
F (20
o
C)
< 71.6
o
F (22
o
C)
> 68
o
F (20
o
C)
> 71.6
o
F (22
o
C)
Compressor: ON
Compressor: OFF
Outdoor
Air Inlet
Temp.
Outdoor
Air Inlet
Temp.
Outdoor
Air Inlet
Temp.
< Set Temp.
> Set Temp.
Cooling Operation
Forced Heating Control
(*) Refer to (2) below “Freeze Protection Control” for details.
(*)
> 59
o
F (15
o
C)
> 55.4
o
F (13
o
C)
< 59
o
F (15
o
C)
< 55.4
o
F (13
o
C)
Compressor: ON
Compressor: OFF
Outdoor
Air Inlet
Temp.
Outdoor
Air Inlet
Temp.
< 32
o
F (0
o
C)
< 19.4
o
F (-7
o
C)
Heating Operation
Forced Stop Control 1
Forced Heating Control or
Forced Stop Control
(*)
(*)
> 32
o
F (0
o
C)
(*) Refer to (2) below “Freeze Protection Control” for details.
Summary of Contents for DOA096B21S Series
Page 2: ......
Page 12: ......
Page 16: ...DOAS 2 4 TC 16005 rev 2 Unit inch mm Model H Y DOA096B21S Produced in 2018 or later ...
Page 20: ...DOAS 2 8 TC 16005 rev 2 2 8 Fan Performance ...
Page 29: ...DOAS TC 16005 rev 2 2 17 2 11 6 Wiring Diagram ...
Page 30: ......
Page 48: ... 2016 Johnson Controls Inc TC 16005 rev 2 Code No LIT 12012282 Revised April 2018 ...
