Series Premier VS-VH
Page 56
LT135 Dec 2019
4 – Burner Time Delay Setting
1. Once you have acquired the proper cold start End Vent Vacuum, go to the burner closest to the vacuum pump
on that branch.
NOTE:
In most applications we would like to see the burner closest to the pump to start up first. If you have a system
with only one burner in a branch, all you need to do is set the End Vent Vacuum and plug in the heater. No burner
adjustment should be needed.
NOTE:
Each module in each burner has 3 dip switches as seen in Figure 49 below
.
Figure 49: Module Dip Switch Location
2. Set the dip switch settings of all burners to ensure at least 60 seconds delay between the consecutive burners.
The modules all come set for 30 seconds, so the burner closest to the pump will not need to be changed, (for a
3-burner branch, set Burner #3 for 30 seconds, Burner #2 for 90 seconds, and Burner #1 for 150 seconds).
Refer to Table H for dip switch settings and timing.
Table H: Dip Switch Settings
Switch 1
Switch 2
Switch 3
30 sec
OFF
OFF
OFF
60 sec
OFF
ON
OFF
90 sec
ON
ON
OFF
120 sec
OFF
OFF
ON
150 sec
ON
OFF
ON
180 sec
OFF
ON
ON
240 sec
ON
ON
ON
