Johnson Controls DOA096B21S Series, Инструкция по эксплуатации

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FEATURES
TC-16005-rev.2
1-3
■ Operation Range
NOTES:
1. The above figure shows the sensed temperature of inlet air thermistor for the DOAS unit.
2. When the outdoor air intake temperature is 32
o
F DB (0
o
C DB) or less, the heating operation is started for
freeze protection of the heat exchanger.
However, when the condition is such that the heating operation is not available, the operation is stopped.
3. When the outdoor air intake temperature is 19.4
o
F DB (-7
o
C DB) or less, the heating operation is stopped for
protection of the heat exchanger from freezing and/or a cold draft.
In addition, even when it is within the operation range, the operation might be stopped for unit protection.
4. During the heating operation, when the outdoor air intake temperature is 59
o
F DB (15
o
C DB) or more, the
operation is changed to fan operation.
5. When starting the heating operation or defrosting operation, the fan function is stopped by setting the optional
function setting in the wired controller. Constant air volume mode is available in order to keep the air speed
constant. (If it is in abnormal condition, the fan function will stop.) Refer to the Service Manual for details.
6. During cooling operation, when the outdoor air intake temperature is 68
o
F DB (20
o
C DB) or less, the operation
is changed to fan operation.
When the outdoor air intake temperature is 109.4
o
F DB (43
o
C DB) or more, the fan operation can continue,
though the alarm might be stopped by increasing pressure due to being out of operation range.
In addition, when the outdoor air intake temperature is high (approx. 104
o
F DB (40
o
C DB) or more) or low
(approx. 73.4
o
F DB (23
o
C DB) or less) the cooling operation and the fan operation might be alternated for unit
protection.
Heating Operation
Available Range
Outdoor Air Intake Temperature [
o
F DB (
o
C DB)]
19.4
(-7)
23
(-5)
32
(0)
41
(5)
50
(10)
59
(15)
68
(20)
86
(30)
95
(35)
104
(40)
109.4
(43)
77
(25)
Fan
Operation
Cooling Operation
Available Range