Duct for Air
Changes per Hour
Calculation
The ACH Duct item sets the duct to be used for ACH
calculations:
SUPPLY is normally used for positive rooms
EXHAUST is normally used for negative rooms
OFF is used if the ACH calculation is not desired
NOTE: The ACH Duct item will only appear if supply and
exhaust flows are both configured.
The Room1 Vol item sets the room volume for the ACH
calculation.
The Room Mode item selects the room pressure
direction. This item enables all related alarms, for
pressure direction selected. Selecting ROOM1 means that
the Room Mode will follow the Room Mode of Room 1.
Anteroom Negative
Low Alarm
The Neg Low Alm item sets the negative low pressure
alarm setpoint. A low alarm condition is defined as when
the magnitude of the room pressure falls below the
Neg Low Alm setpoint.
This item is active when the TSI key switch is in negative
room pressure position or when NEGATIVE is selected in
Room Mode item. However, it is always accessible
through the menu system.
-0.19500 in. W.C. to
+0.19500 in. W.C.
(TSI SENSOR)
-1.0 in W.C. to
+1.0 in W.C.
(PRESSURE
TRANSDUCER)
Neg Low Alm
cannot be set more
negative than the
Neg Hi Alm
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