Lochinvar 502 Startup, Installation & Operation Manual, Set clock, Configuration of the cascade

Installation & Operation Manual

6 Startup

Set clock

The SMART SYSTEM control has a built-in clock that it uses for its night setback feature and for logging events. This clock must be set when the appliance is installed, and anytime the appliance has been powered off for more than one month. Use the following procedure to set the clock:

1.Press and hold the MENU key (FIG. 7-1) for at least 5 seconds.

2.The display changes to ready “ENTER MENU CODE”, with four (4) zeros below it.

3.Change the zeros to match the user code (factory set at “0704”). Use the UP and DOWN keys to increment or decrement the flashing digit, and the NEXT and PREVIOUS keys to select which digit flashes.

4.Press the ENTER key.

5.The display changes to read USER CODE for a few seconds, then displays a menu.

6.Press the ENTER key.

7.Press the UP key twice to display “A3 DATE AND TIME”.

8.Press the ENTER key once.

9.The date and time are displayed as “YY:MM:DD W hh:mm”, where:

mm:minutes

hh:hour (24 hour time; e.g., 2:00 PM = 14:00)

W:day of the week (1 = Sunday, 2 = Monday, 3 = Tuesday, etc.,)

YY:year

MM: month

DD:date

NOTICE The internal clock does not adjust for Daylight Savings Time and therefore, will

require a manual adjustment.

Use the UP and DOWN keys to increment or decrement the flashing number, and the NEXT and PREVIOUS keys to select which number flashes.

10.Press the ENTER key to save the setting.

11.Press the MENU key twice to exit the Programming Mode.

48

Configuration of the cascade

When installed in a Cascade system, the individual controls must be programmed for cascade operation. This is accomplished by accessing the control parameters.

Input the Installer code as described in the Copper-fin2Service Manual. Once the control parameters have been accessed, use the DOWN arrow key to select the H Control Mode parameters. Press the ENTER key to access these parameters. Use the UP arrow key to access parameter H4 Cascade. Press the ENTER key to access this parameter. Use the DOWN arrow key to select Enable. Press the ENTER key to program this into the control. Press the EXIT key, then press the DOWN key until I Cascade is selected.

Press the ENTER key to select the parameter I1 BLR Address. Press the ENTER key to access this parameter. Each unit in the Cascade system must be programmed with its own address. The unit designated as the Leader will have an address of 0. The remaining units in the Cascade will be Members and have addresses from 1 - 7. Use the UP and DOWN arrow keys to select the appropriate address. Press the ENTER key to program this into the control.

Press the MENU key twice to exit the control parameters. Repeat this procedure for all appliances in the Cascade, designating the Leader control and the Member controls.