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SET POINTS MENU
(continued)
MENU ITEM
SOFTWARE
NAME
ITEM DESCRIPTION
ITEM RANGE
DEFAULT
VALUE
UNOCCUPIED
SUPPLY FLOW
MINIMUM
UNOCCUPY
SET
The
UNOCCUPY SET
item sets a minimum supply flow set
point when the laboratory is unoccupied (requires fewer air
changes per hour). When
UNOCCUPY SET
is active, the
VENT MIN SET
and
COOLING FLOW
set points are turned
off, since only one minimum supply set point can be enabled.
The controller will not allow the supply air damper to be closed
further than the
UNOCCUPY SET
set point. If room pressure is
not maintained at minimum supply flow, the general exhaust
damper modulates open until pressure set point is reached
(provided required offset is between
MIN OFFSET
and
MAX
OFFSET
).
WIRING: This item is enabled when the
OCCUPANT SWT
contact closure is
closed
(pins 11 and 12, DIM), or the
RS 485 communications sends a command. When
switch input is
open
VENT MIN SET
and
COOLING
FLOW
are enabled and
UNOCCUPY SET
is
disabled.
0-30,000 CFM
(0-14,100 l/s)
Linear based flow
stations 0 to TOP
VELOCITY times the
duct area in square feet
(ft
2
): square meters
(m
2
).
0
MAXIMUM
SUPPLY FLOW
SET POINT
MAX SUP
SET
The
MAX SUP SET
item sets the maximum supply air flow into
the laboratory. The controller will not allow the supply air
damper to open further than the
MAX SUP SET
flow set point.
NOTE
: The laboratory may not hold pressure set point when
supply air is limited.
0-30,000 CFM
(0-14,100 l/s)
Linear based flow
stations 0 to TOP
VELOCITY times the
duct area in square feet
(ft
2
): square meters
(m
2
).
OFF
