15
Operation
Nortec RS
2596995_0_EN_1905
2.3
Drain interval time / water consumption
The drain interval time is either calculated automatically by the control software based on the set supply
water quality and the water hardness or can be set manually. However the water quality on site must be
obtained from the local water supplier.
During a drain cycle, the fill valve is energized to assist in reducing the drain water temperature below
140 °F (60 °C), and at the same time the drain pump is energized. The water consumption of the Nortec
RS largely depends on the set drain interval time based on the supply water quality and water hardness
(refer to
"Model Specifications" on page 16
for draining rates).
If a heavy scale build up is discovered when servicing the steam cylinder the drain interval time must
be reduced. On the other hand if only a light scale build up is discovered the drain interval time can be
increased.
