Infinity L30, M30 manual Program and Operate Three Stage Program Figure

OPERATION

PROGRAM AND OPERATE - THREE STAGE PROGRAM (Figure 1)

1.Follow Two Stage Program, Steps 1 - 4.

2.Press ENTER / REVIEW. STAGE 2 light turns off, STAGE 3 and HEAT RATE lights turn on. Main Display shows four heat rate choices. Choose one:

A. Select heat rate between 1°F - 30°F /min (1°C - 17°C /min) using	.
B. Select "FULL" to program maximum heat rate.

C. Select "COOL" to program the furnace to cool to a selected temperature.

D. Select "NO" to turn of STAGE 3 and 4. This will result in a Two Stage Program.

NOTE: The HEAT RATE cannot be programmed to "COOL" in STAGE 1 - only in STAGE 2, 3 or 4.

3. Press ENTER / REVIEW. HEAT RATE light turns off and TEMP light turns on. Enter	for the
temperature required: heating temperature up to a maximum of 2012°F (1100°C) or cooling
temperature down to a minimum of 100°F (38°C).
4. Press ENTER / REVIEW. TEMP light turns off and HOLD TIME light turns on. Enter	to program the
time needed to hold at the above temperature (0 - 4hrs.).

5.For three stages, the furnace must be programmed not to use STAGE 4. Follow these steps:

A. After completing Step 4, press ENTER / REVIEW. STAGE 3 light turns off, STAGE 4 and HEAT

RATE lights turn on.

B. Press . Main Display shows “....5,4,3,2,1, COOL, NO.” Select “NO” to program the

furnace not to use STAGE 4.

6.All necessary information for this program is now entered.

7.To run the program immediately, press START / STOP.

8.To delay the start of the program to be ready to cast at the pre-set time (see One Stage Program, Step 3), press NIGHT TIME (DELAY START).

NOTE: If NIGHT TIME (DELAY START) is pressed while a program is running, the time remaining for completion of the program will appear on the Main Display for 5 seconds.

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