User Manual

Freeze Owner’s Manual 8 | P a g e

Modifying Parameters

Setting Temperature Units (F or C)

1. Press and hold down the Prg and Set keys at the same time for 5 seconds. The display will then flash “0” asking

for password. Use the up and down arrow keys to select “77” for password. Press the set key to continue.

2. Press the up and down arrow keys to move to parameter “c18”. Press the set key.

3. Use the arrow keys to select “0” for Celsius or “1” for Fahrenheit. Press the set key to continue.

4. Press and hold down the Prg key for 5 seconds to save programming changes.

Modifying Set Point (St1)

1. Press and hold down the Prg and Set keys at the same time for 5 seconds. The display will then flash “0” asking

for password. Use the up and down arrow keys to select “77” for password. Press the set key to continue.

2. Press the up and down arrow keys to move to the “St1” parameter. Press the set key.

 Warning: Adjusting “St2” will damage chiller.

3. Press the up and down arrow keys to reach the desired temperature. Press the set key to continue.

4. Press and hold down the Prg key for 5 seconds to save programming changes.

Modifying Temperature Differentials (P1 )

1. Press and hold down the Prg and Set keys at the same time for 5 seconds. The display will then flash “0” asking

for password. Use the up and down arrow keys to select “77” for password. Press the set key to continue.

2. Press the up and down arrow keys to move to the “P1” parameter. Press the set key.

 Warning: Adjusting “P2” will damage chiller.

3. Press the up and down arrow keys to reach the desired differential temperature. Press the set key.

 North Slope Chillers recommends a differential of 3 Fahrenheit. Anything less than that will void the

warranty.

4. Press and hold down the Prg key for 5 seconds to save programming changes.

Modifying Operating Parameters

1. Press and hold down the Prg and Set keys at the same time for 5 seconds. The display will then flash “0” asking

for password. Use the up and down arrow keys to select “77” for password. Press the set key to continue.

2. Press the up and down arrow keys to move to the desired parameter. Press set to continue.

3. Press the up and down arrow keys to reach the desired value. Press set to continue.

4. Press and hold down the Prg key for 5 seconds to save programming changes.

 Follow the above steps to change the following parameters for standard operation

Parameter

c13

c18

Value