Specifications

ManualsBrandsMr. Heater ManualsHeater3500DF

3-14

OPERATION VTG-IOM-2012-1001 SECTION 3

4 WARNING

All information in this manual is for

reference and guidance purposes,

and does not substitute for required

professional training, conduct,

and strict adherence to applicable

jurisdictional/professional codes and

regulations.

Non-Fulton product information is for

reference purposes only. No Fulton

document may substitute for full

review of documentation available

from the component manufacturer.

} SET BOILER ON TEMPERATURE

1. Press and hold the PGM button for 3 seconds. A number in red and the

letters AL in green will appear.

2. Use PGM button to scroll down to HYS.1.

3. Use the arrow buttons to change HYS.1 to the value desired. This value is

a subtractive di erential from set point at which the burner will be turned

on. I.e. SP1 – HYS.1 = Heater On Temperature. Ex. SP1 = 160, HYS.1 = 5 

Heater will turn on at 155 F. Press the PGM button to enter value.

4. Press the EXIT button to return to default display.

} SET BOILER OFF TEMPERATURE

1. Press and hold the PGM button for 3 seconds. A number in red and the

letters AL in green will appear.

2. Use PGM button to scroll down to HYS.3.

3. Use the arrow buttons to change HYS.3 to the value desired. This value is a

additive di erential from set point at which the burner will be turned on.

I.e. SP1 + HYS.3 = Heater O Temperature. Ex. SP1 = 160, HYS.3 = 5  Heater

will turn o at 165 F. Press the PGM button to enter value.

4. Press the EXIT button to return to default display.

} SET PROPORTIONAL BAND, INTEGRAL AND DERIVATIVE VALUES

1. Press and hold the PGM button for 3 seconds. A number in red and the

letters AL in green will appear.

2. Use the PGM button to scroll down to Pb1.

3. Use the arrow keys to change Pb1 to the value desired. The higher this

number is, the sooner the heater will begin to drop to low  re. The smaller

this number is, the longer the heater will remain at high  re before

dropping to low  re. Press the PGM to enter value.

4. Use the PGM button to scroll down to dt.

5. Use the arrow keys to change dt to the desired value. This value must be

¼ the value in rt. The smaller this number is, the quicker the heater will

anticipate and react to changes in temperature. Press the PGM button to

enter value.

6. Use the PGM button to scroll down to rt.

7. Use the arrow keys to change rt to the desired value. The smaller this

number is, the quicker the heater will anticipate and react to changes in

temperature. Press the PGM button to enter value.

8. Press the EXIT button to return to default display.