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Single Service
1x20A This setting will turn the heater off any time either one of
the pumps are activated.
1x32A This setting is for all two pump model spas. Both pumps
and the heater will be allowed to operate at the same
time.
Dual Service (default setting)
1x16A/1x20A This setting is for all two pump model spas. Both pumps
and the heater will be allowed to operate at the same
time.
Three Phase Service
3x16A This setting is for all two pump model spas. Both pumps
and the heater will be allowed to operate at the same
time.