Carrier WEATHERMAKER 48/50AJ User Manual

Page 5

Items in the Configuration and Service Test modes are

password protected. The display will flash PASS and WORD
when required. Use the

and arrow keys to enter the

four digits of the password. The default password is 1111.

Pressing the

and

keys simultaneously

will scroll an expanded text description across the display indi-
cating the full meaning of each display point. Pressing the

and

keys when the display is blank

(MODE LED level) will return the display to its default menu
of rotating AUTO VIEW display items. In addition, the pass-
word will need to be entered again before changes can be made.

Changing item values or testing outputs is accomplished in

the same manner. Locate and display the desired item. If the
display is in rotating auto-view, press the

key to stop

the display at the desired item. Press the

key again so

that the item value flashes. Use the arrow keys to change the
value of state of an item and press the

key to accept

it. Press the

key and the item, value or units display

will resume. Repeat the process as required for other items.

If the user needs to force a variable, follow the same process

as when editing a configuration parameter. A forced variable
will be displayed with a blinking “f” following its value. For
example, if supply fan requested (FAN.F) is forced, the display
shows “YESf”, where the “f” is blinking to signify a force on
the point. Remove the force by selecting the point that is forced
with the

key and then pressing the

and

ar-

row keys simultaneously.

Depending on the unit model, factory-installed options and

field-installed accessories, some of the items in the various

Mode categories may not apply.

System Pilot™ Interface —

The System Pilot

(33PILOT-01) device is a component of Carrier’s 3V™ system

and serves as a user-interface and configuration tool for all Car-

rier communicating devices. The System Pilot device can be

used to install and commission a 3V zoning system, linkage

compatible air source, universal controller, and all other devic-

es operating on the CCN system.

Additionally, the System Pilot device can serve as a

wall-mounted temperature sensor for space temperature

measurement. The occupant can use the System Pilot device to

change set points. A security feature is provided to limit access

of features for unauthorized users. See Fig. 3 for System Pilot

details.

CCN Tables and Display —

In addition to the unit-

mounted scrolling marquee display, the user can also access the

same information through the CCN tables by using the Service

Tool or other CCN programs. Details on the CCN tables are

summarized in Appendix B. The variable names used for the

CCN tables and the scrolling marquee tables may be different

and more items are displayed in the CCN tables. As a refer-

ence, the CCN variable names are included in the scrolling

marquee tables and the scrolling marquee names are included

in the local display tables in Appendix B.

GENERICS STATUS DISPLAY TABLE — The GENERICS

points table allows the service/installer the ability to create a

custom table in which up to 20 points from the 5 CCN

categories (Points, Config, Service-Config, Set Point, and

Maintenance) may be collected and displayed.

In the Service-Config table section, there is a table named

“generics”. This table contains placeholders for up to 20 CCN

point names and allows the user to decide which points are dis-

played in the GENERICS points table under the local display.

Each one of these placeholders allows the input of an 8-character

ASCII string. Using a CCN interface, enter the Edit mode for the

Service-Config table “generics” and enter the CCN name for

each point to be displayed in the custom points table in the order

they will be displayed. When done entering point names, down-

load the table to the rooftop unit control.

ENTER

ESCAPE

ENTER

ESCAPE

ENTER

ESCAPE

ENTER

IMPORTANT: The computer system software

(ComfortVIEW™, Service Tool, etc.) that is used to

interact with CCN controls always saves a template of

items it considers as static (e.g., limits, units, forcibil-

ity, 24-character text strings, and point names) after

the software uploads the tables from a control. There-

after, the software is only concerned with run time

data like value and hardware/force status. With this in

mind, it is important that anytime a change is made to

the Service-Config table “generics” (which in turn

changes the points contained in the GENERICS point

table), that a complete new upload be performed. This

requires that any previous table database be

completely removed first. Failure to do this will not

allow the user to display the new points that have been

created and the CCN interface will have a different

table database than the unit control.

SCROLL

NAVIGATE/
EXIT

MODIFY/
SELECT

PAGE

Fig. 3 — System Pilot™ User Interface

A33-1050