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Carrier PREMIERLINK 33CSPREMLK User Manual

Page 33

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33

UNOCCUPIED HIGH — The Unoccupied High set point de-
scribes the high temperature limit of the space during Unoccu-
pied mode.
Unoccupied High: Units:

Degrees F (Degrees C)

Range:

45.0 to 99.9

Default Value:

90.0

HIGH OAT LIMIT FOR IAQ PRE-OCCUPANCY
PURGE — The High OAT unit for IAQ Pre-Occupancy Purge
function determines the Economizer Damper position used for
IAQ Pre-Occupancy Purge.
High OAT
Limit:

Units:

Degrees F (Degrees C)

Range:

55.0 to 75.0

Default Value:

65.0

UNOCCUPIED OAT LOCKOUT TEMPERATURE —
The Unoccupied OAT Lockout Temperature describes the low-
est Outdoor Air Temperature allowed for Unoccupied Free
Cooling operation. This function is also used by IAQ Pre-
Occupancy Purge control to determine the minimum damper
position for IAQ Purge.
Unoccupied
OAT Lockout:

Units:

Degrees F (Degrees C)

Range:

40.0 to 70.0

Default Value:

50.0

UNOCCUPIED HEATING DEADBAND — The Unoccu-
pied Heating Deadband describes the space temperature value
which has to be achieved while unoccupied Heating before the
unoccupied Heating mode will turn off.
Unoccupied
Heating
Deadband:

Units:

Degrees F (Degrees C)

Range:

0.0 to 10.0

Default Value:

1.0

UNOCCUPIED COOLING DEADBAND — The Unoccu-
pied Cooling Deadband describes the space temperature value
which has to be achieved while unoccupied Cooling before the
unoccupied Cooling mode will turn off.
Unoccupied
Cooling
Deadband:

Units:

Delta Degrees F
(Delta Degrees C)

Range:

0.0 to 10.0

Default Value:

1.0

LOW TEMPERATURE MINIMUM POSITION — The Low
Temperature Minimum Position describes the low temperature
limit for Low Outdoor Air Temperature conditions.

IAQ Pre-Occupancy Purge Algorithm will use this value

whenever Outdoor Air Temperature is below Unoccupied OAT
Lockout Temperature.
Low Temperature
Minimum
Position:

Units:

Percent

Range:

0 to 100

Default Value:

10.0

HIGH TEMPERATURE MINIMUM POSITION — The High
Temperature Minimum Position specifies the value for Purge
Minimum Damper Position for High Outdoor Air temperature
conditions.

IAQ Pre-Occupancy Purge Algorithm shall use this value

whenever Outdoor Air Temperature is above or at Unoccupied
OAT Lockout Temperature, and also OAT is above Occupied
Cool Set Point or Enthalpy is High. Whenever OAT>=NTLO
and OAT<=OCSP and Enthalpy is Low, the Purge algorithm
will set Purge Minimum Damper Position to 100%.
High Temperature
Minimum
Position:

Units:

Percent

Range:

0 to 100

Default Value:

35.0

POWER EXHAUST SET POINT — The Power Exhaust Set
Point describes the minimum damper position that the Econo-
mizer Damper must be before the power exhaust fan will be
energized.
Power Exhaust
Set Point:

Units:

Percent

Range:

0 to 100

Default Value:

50.0

Table 13 — Set Point Configuration

Service Configuration Selection Screen —

The

Service Configuration Selection screen is used to configure
the service set points of the PremierLink™ controller. See
Table 14.
COOLING

PID

The PremierLink controller reads the

space temperature sensor and compares the temperature to he
current high set point. If it exceeds the set point, and cooling is
configured and available, the controller then calculates the re-
quired supply air temperature to satisfy the given conditions.

The Cooling PID (Proportional/Integral/Derivative) in-

cludes the following set points: Proportional Gain, Integral
Gain, Derivative Gain, and Starting Value.
Proportional Gain:

Range:

0.0 to 40.0

Default Value:

6.0

Integral Gain:

Range:

0.0 to 10.0

Default Value:

3.0

Derivative Gain:

Range:

0.0 to 20.0

Default Value:

5.0

Starting Value:

Units:

Degrees F

Range:

40.0 to 90.0

Default Value:

70.0

DESCRIPTION

VALUE

UNITS

NAME

Setpoints

Occupied Low Setpoint

70.0

dF

OHSP

Occupied High Setpoint

74.0

dF

OCSP

Unoccupied Low Setpoint

69.0

dF

UHSP

Unoccupied High Setpoint

75.0

dF

UCSP

Hi OAT Limit for
IAQ Pre-Occ Purge

65.0

dF

OATL

Unocc. OAT Lockout TEMP

50.0

dF

NTLO

Unocc. Heating Deadband

1.0

^F

UHDB

Unocc. Cooling Deadband

1.0

^F

UCDB

Low Temp. Min. Position

10

%

LTMP

Hi Temp. Min. Position

35

%

HTMP

Power Exhaust Setpoint

50

%

PES