6 low temperature alarm setpoint, 7 high humidity alarm setpoint, 8 low humidity alarm setpoint – Bard TCS22-***-003 User Manual

Page 70: 9 enthalpy changeover setpoint

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2100-444-003A

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Alarm Setpoint by 0.50 degrees Fahrenheit until the minimum allowed setpoint of 80.0 degrees is
reached.

6.4.2.6 Low Temperature Alarm SetPoint


The Low Alarm Setpoint is the temperature at which the low temperature alarm will trigger for

the Structure. If the zone temperature of the structure is below the Low Alarm Setpoint then an alarm
event is logged in the alarm log and a shelter alarm is generated.

Next to the Low Temperature Alarm value is a scroll bar. Clicking on the right arrow will

increase the Low Temperature Alarm Setpoint by 0.50 degrees Fahrenheit until the maximum allowed
setpoint of 67.0 degrees is reached. Clicking on the left arrow will decrease the Low Temperature Alarm
Setpoint by 0.50 degrees Fahrenheit until the minimum allowed Setpoint of 45.0 degrees is reached.

6.4.2.7 High Humidity Alarm SetPoint


The High Humidity Setpoint is the humidity level at which a high humidity alarm will trigger for

the structure. If the zone humidity of the structure exceeds the High Humidity Setpoint then an alarm
event is logged in the alarm log and a shelter alarm is generated.

Next to the High Humidity Alarm value is a scroll bar. Clicking on the right arrow will increase

the High Humidity Alarm Setpoint by 1 percent relative humidity until the maximum allowed setpoint of
85% RH is reached. Clicking on the Left arrow will decrease the High Humidity Alarm Setpoint by 1
percent relative humidity until the minimum allowed setpoint of 55% RH is reached.

6.4.2.8 Low Humidity Alarm SetPoint


The Low Humidity Setpoint is the humidity level at which a Low humidity alarm will trigger for

the structure. If the zone humidity of the structure is below the Low Humidity Setpoint then an alarm
event is logged in the alarm log and a shelter alarm is generated.

Next to the Low Humidity Alarm value is a scroll bar. Clicking on the Right Arrow will increase

the Low Humidity Alarm Setpoint by 1 percent relative humidity until the maximum allowed setpoint of
35% RH is reached. Clicking on the Left arrow will decrease the Low Humidity Alarm Setpoint by 1
percent relative humidity until the minimum allowed setpoint of 5% RH is reached.

6.4.2.9

Enthalpy Changeover Setpoint


The Enthalpy Setpoint is used to determine if the outside air is suitable to use for cooling the

structure. The default value for this point is 23.00 BTU/ lb. of dry air. Consult the enthalpy lookup table
to adjust this value for the specific conditions that you wish to maintain in the structure. Read down the
relative humidity column under the percentage RH you wish to maintain. Read across the inside
temperature row to where it intersects the RH column. Enter this value into the Enthalpy Setpoint
Display. This will ensure that economizer will never bring in outside air that is too humid.

Next to the enthalpy value is a scroll bar. Clicking on the Right Arrow will increase the Enthalpy

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