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Service Operation — An overview of the tables and

screens available for the SERVICE function is shown in

Fig. 17.

TO ACCESS THE SERVICE SCREENS — When the SER-

VICE screens are accessed, a password must be entered.

1. From the main MENU screen, press the

softkey. The softkeys now correspond to the numerals 1,

2, 3, 4.

2. Press the four digits of the password, one at a time. An as-

terisk (*) appears as each digit is entered.

NOTE: The initial factory-set password is 1-1-1-1. If the

password is incorrect, an error message is displayed.

If this occurs, return to Step 1 and try to access the

SERVICE screens again. If the password is correct, the

softkey labels change to:

NOTE: The SERVICE screen password can be changed by

entering the ICVC CONFIGURATION screen under SER-

VICE menu. The password is located at the bottom of the

menu.

The ICVC screen displays the following list of available

SERVICE screens:

•Alarm History

•Alert History

• Control Test

• Control Algorithm Status

• Equipment Configuration

• VFD Config Data

• Equipment Service

• Time and Date

• Attach to Network Device

• Log Out of Device

• ICVC Configuration

See Fig. 18 for additional screens and tables available from

the SERVICE screens listed above. Use the softkey to

return to the main MENU screen.

NOTE: To prevent unauthorized persons from accessing the

ICVC service screens, the ICVC automatically signs off and

password-protects itself if a key has not been pressed for

15 minutes. The sequence is as follows. Fifteen minutes after

the last key is pressed, the default screen displays, the ICVC

screen light goes out (analogous to a screen saver), and the

ICVC logs out of the password-protected SERVICE menu.

Other screen and menus, such as the STATUS screen can be

accessed without the password by pressing the appropriate

softkey.

TO LOG OUT OF NETWORK DEVICE — To access this

screen and log out of a network device, from the default ICVC

screen, press the and softkeys. Enter the

password and, from the SERVICE menu, highlight LOG OUT

OF NETWORK DEVICE and press the softkey.

The ICVC default screen will now be displayed.

TIME BROADCAST ENABLE — The first displayed line,

“Time Broadcast Enable,” in the SERVICE/EQUIPMENT

CONFIGURATION/BRODEF screen, is used to designate the

local chiller as the sole time broadcaster on a CCN network

(there may only be one). If there is no CCN network present

and/or there is no designated time broadcaster on the network,

current time and date, Daylight Saving Time (DST), and holi-

days as configured in the local chiller’s control will be applied.

If a network is present and one time broadcaster on the network

has been enabled, current time and date, DST, and holiday

schedules as configured in the controls of the designated time

broadcaster will be applied to all CCN devices (including chill-

ers) on the network.

HOLIDAY SCHEDULING (Fig. 26) — Up to 18 different

holidays can be defined for special schedule consideration.

There are two different screens to be configured.

First, in the SERVICE/EQUIPMENT CONFIGURATION/

HOLIDAYS screen, select the first unused holiday entry

(HOLDY01S, for example). As shown in Fig. 26, enter a num-

ber for Start Month (1 = January, 2 = February, …, 12 = Decem-

ber), a number for Start Day (1 - 31), and Duration in days (0 -

99). By default there are no holidays set up. Second, in the occu-

pancy Schedule tables, specify and enable (by setting “X” under

the “H” column) run time period(s) which will apply to all holi-

days. (Refer to Fig. 19.) A run time period which is enabled for

holidays may be applied to one or more non-holiday days of the

week as well. This may be done for the local (table

OCCPC01S), Ice Build (OCCPC02S), and/or CCN

(OCCPC03S) schedule(s). If the chiller is on a CCN network,

the active holiday definition will be that configured in the

device designated at the sole time broadcaster (if one is so

enabled). See the TIME BROADCAST ENABLE section.

The broadcast function must be activated for the holidays

configured on the HOLIDEF screen to work properly.

Access the BRODEF screen from the EQUIPMENT

CONFIGURATION table and select ENABLE to activate the

function. Note that when the chiller is connected to a CCN

Network, only one chiller or CCN device can be configured as

the broadcast device. The controller that is configured as the

broadcaster is the device responsible for transmitting holiday,

time, and daylight-savings dates throughout the network.

To access the BRODEF screen, see the SERVICE menu

structure, Fig. 18.

To view or change the holiday periods for up to 18 different

holidays, perform the following operation:

1. At the Menu screen, press to access the

Service menu.

2. If not logged on, follow the instructions for Attach to

Network Device or To Log Out. Once logged on, press

until Equipment Configuration is highlighted.

3. Once Equipment Configuration is highlighted, press

to access.

4. Press until HOLIDAYS is highlighted. This is

the Holiday Definition table.

5. Press to enter the Data Table Select screen.

This screen lists 18 holiday tables.

6. Press to highlight the holiday table that is to be

viewed or changed. Each table is one holiday period,

starting on a specific date, and lasting up to 99 days.

SERVICE

EXIT

SERVICE

SELECT

SERVICE

SELECT

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