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Carrier PREMIERLINK 33CSPREMLK User Manual

Page 28

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28

To access the sub-mode to change the Unoccupied OAT

Lockout Setpoint, press the down arrow to scroll down until
the Navigator™ module display reads:

SETP
OATL

>NTLO

UHDB

To view an expansion of the sub-mode, press the

and

keys simultaneously and the Navigator will

display:

>NTLO

UNOCC. OAT LOCKOUT
TEMP

The Navigator will remain in the expanded display mode

until the

key is pressed. Use the arrow keys to view

expansions for any of the other sub-modes within the Setpoint
mode.

Password Protection —

If an area is entered that is

password protected or an item is selected for change that is
password protected, the Navigator will display:

Enter Password
1111 (default password)
The first digit of the password will be flashing. Hold either

of the arrow keys down to change the value of the first digit (if
necessary) and press

to accept. Repeat the process for

the remaining three digits.

The message “Invalid Password” is displayed if the pass-

word is not correct. The password can not be disabled from the
Navigator, nor can it be changed.

Forcing Values and Configuring Items —

Cer-

tain items are allowed to be forced and other items are user-
configurable. Both of these changes can be made using the
Navigator.

CONFIGURATION

The following sections describe the computer configuration

screens which are used to configure the PremierLink™ con-
troller. The screens shown may be displayed differently when
using different Carrier software.

Points Display Screen —

The Points Display screen is

used to monitor and change the PremierLink controller set
points. See Table 7.

SPACE TEMPERATURE — This point displays the space
temperature from the 10K thermistor (Type III) located in the
space.
Space
Temperature:

Display Units:

Degrees F (Degrees C)

Default Value:

–40.0

Display Range:

–40.0 to 245.0

Network Access: Read/Write

SUPPLY AIR TEMPERATURE — The Supply Air Temper-
ature point displays the temperature of the air leaving the unit,
downstream of any cool or heat sources. Temperature is mea-
sured by a 10K thermistor (Type III). This sensor is required
for proper function of the heating, cooling, and the economizer.
Supply Air
Temperature:

Display Units:

Degrees F (Degrees C)

Default Value:

0.0

Display Range:

–40.0 to 245.0

Network Access: Read/Write

OUTDOOR AIR TEMPERATURE — Temperature of the
air leaving the unit downstream of any cool or heat sources,
measured by a 10K thermistor (Type III). This sensor is
required for proper function of the heating, cooling, and the
economizer.
Outdoor Air
Temperature:

Display Units:

Degrees F (Degrees C)

Default Value:

0.0

Display Range:

–40.0 to 245.0

Network Access: Read/Write

CONTROL SET POINT — This point displays the current
controlling set point when a heat or cool mode is active. If there
is not an active heat or cool set point, the set point of the last
mode is displayed. Upon reset or start-up, the proper cooling
set point is displayed, depending on occupancy. In the thermo-
stat mode, this point is not used for equipment control.
Control Set Point: Display Units:

Degrees F (Degrees C)

Default Value:

Unoccupied Cool
Setpoint

Display Range:

35 to 110

Network Access: Read Only

COOLING PERCENT TOTAL CAPACITY — The Cooling
Percent Total Capacity point is used to display the current
Cooling Capacity. When cooling is enabled, the percent of
cooling being delivered is determined by the following formula
for the number of compressor stages confirmed:
% Output Capacity = (# of active stages/Total stages) * 100.
Cooling Percent
Total Capacity:

Display Units:

% output capacity

Default Value:

0

Display Range:

0 to 100

Network Access: Read Only

HEATING PERCENT TOTAL CAPACITY — The Heating
Percent Total Capacity point is used to display the current
Heating Capacity.

When heat is enabled, the percent of heat being delivered is

determined by the following formula for electric heat:
% Output Capacity = (# of active stages/Total stages) * 100
Heating Percent
Total Capacity:

Display Units:

% output capacity

Default Value:

0

Display Range:

0 to 100

Network Access: Read Only

ECONOMIZER ACTIVE — The Economizer Active point
displays the status of the economizer for free cooling. When
the outdoor conditions match the desired indoor conditions, the
economizer will be enabled for outdoor air assisted cooling.
Economizer
Active:

Display Units:

Discrete ASCII

Default Value:

No

Display Range:

No/Yes

Network Access: Read Only

SUPPLY FAN RELAY — This point displays the command-
ed state of the Supply Fan Relay.
Supply Fan
Relay:

Display Units:

Discrete ASCII

Default Value:

Off

Display Range:

Off/On

Network Access: Read/Write

ENTER

ESCAPE

ESCAPE

ENTER