Vesta VH-150, Installation Manual

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Installation Manual
Setting the DIP Switches (for Cascade System)
The water heater has a DIP switch on the main circuit board (PCB).
There are two sets of DIP switches that control the cascade system
of the water heater. Set the DIP switches appropriately, depending
on the installation environment.
1 2 3 4
ON
1 2 3
ON
4-switch panel
Switch Function
1 2 3 4
ON
Cascade operation
1 2 3 4
ON
Minimum heat capacity operation
1 2 3 4
ON
Maximum heat capacity operation
3-switch panel
Switch Function
1 2 3
ON
One water heater is in use.
1 2 3
ON
Two water heaters are in use for the cascade
system.
1 2 3
ON
Three water heaters are in use for the cascade
system.
1 2 3
ON
Four water heaters are in use for the cascade
system.
1 2 3
ON
Five water heaters are in use for the cascade
system.
1 2 3
ON
Six water heaters are in use for the cascade system.
1 2 3
ON
Seven water heaters are in use for the cascade
system.
1 2 3
ON
Eight water heaters are in use for the cascade
system.