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ACC Precision Air Conditioner Controller
User Manual
Parameter
CFT
stability diff
CFT
stability
filter delay
Water temp
rise step
Water temp
fall step
Min CW
valve
opening
Low limit
for CW
valve target
opening
Up limit for
CW valve
Issue 02 (2016-11-30)
Description
Set this parameter to the CFT
stability difference after the
chiller linkage function is
enabled. The value range is
0–100%.
Set this parameter to the CFT
stability filter delay after the
chiller linkage function is
enabled. The value range is
0–7200s.
Indicates the step for
increasing the water supply
temperature (0.1–8° C) after
the chiller linkage function is
enabled.
Indicates the step for
decreasing the water supply
temperature (0.1–8° C) after
the chiller linkage function is
enabled.
Indicates the lower limit set
for the water valve openness
after the chiller linkage
function is enabled to
minimize water temperature
differences caused by the
environment. The value must
be greater than or equal to 0,
and must be less than Low
limit for CW valve target
opening.
Indicates the lower limit on
the water valve opening after
the heat load stabilizes and
the chiller linkage function is
enabled. The value must be
greater than Min CW valve
opening and less than Up
limit for CW valve target
opening.
Indicates the upper limit on
the water valve opening after
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3 Power-on Commissioning
Configuration Principle
Indicates the CFT condition
to be met by a precision air
conditioner. It is
recommended that you retain
the default value.
Indicates the time after
which the CFT of a precision
air conditioner is within the
range set in the CFT
stability diff parameter. It is
recommended that you retain
the default value.
Set the parameter based on
the precision for controlling
the chiller water temperature
and the water temperature
stability. It is recommended
that you retain the default
value.
Set the parameter based on
the precision for controlling
the chiller water temperature
and the water temperature
stability. It is recommended
that you retain the default
value.
Set the parameter based on
the chilled water value type
and chilled water flow. It is
recommended that you retain
the default value for a 2-way
valve, and change the value
to 0 for a 3-way valve.
Set the parameter to the
minimum opening at which
the precision air conditioner
works properly. It is
recommended that you retain
the default value.
Set the parameter to the
maximum opening at which
Default
Value
0%
60s
1° C
1° C
15%
75%
95%
24
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