NuAire NU-5710, Руководство по эксплуатации и обслуживанию

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OM0249 Page 28 of 64
Rev 4 June/2020
8.8.1.3 Default Set points
Temperature 37.0 C All Models
CO₂ 5.0%
Note 1:
A set point of 0 (zero) will put the system into an Idle
state where it does not control and all alarms are
inhibited. The sensor remains active and reports the
level of gas/RH in the chamber.
All Models
RH
(Humidity)
90.0%
Note 1:
A set point of 0 (zero) will put the system into an Idle
state where it does not control and all alarms are
inhibited. The sensor remains active and reports the
level of gas/RH in the chamber.
NU-5720
and
NU-5741
O₂ 21.0%
Note 2:
A set point of 21.0% will put the system into an idle
state where it does not control and all alarms are
inhibited.
Note 3: O₂ set points below 10% will automatically reduce
the Air Injection Time value to “0”. This stops air
injections that will interfere with achieving these
lower O₂ set points.
NU-5731
and
NU-5741
8.8.1.4 Automatic Adjustment of Post Inject Delay Times when O₂ control system is active
Post inject delays are automatically adjusted according to the O₂ set point to facilitate gas and RH recovery
after a door opening. The value displayed in the option menu will not change but is the basis for a formula in
the software that calculates the new delay time depending on the O₂ set point. As the set point is reduced
the delay times are shortened automatically through the software.
The value of the post inject delay time used is the value that shows in the Options display for that control
system whether it is the default or user selected.
8.8.1.5 When the CO₂ system is active the level of CO₂ inversely affects the O₂ present in the chamber.
The maximum achievable O₂ set point is indicated by the following table.
CO₂ Set Point
Automatic maximum
O₂ Adjustment
0.1% to 1.0% 20.7%
1.1% to 3.0% 20.0%
3.1% to 6.0% 19.0%
6.1% to 10.0% 18.0%
10.1% to 15.0% 17.0%
15.1% to 20.0% 16.0%