Nortec NHPC, NHTC manual 10-00, B.Nh Capacity Adjustment, C.Drain Cycle And Cylinder Life

B.NH CAPACITY ADJUSTMENT

(1)Each NORTEC NH Series humidifier is rated at its maximum output capacity. By means of the alphanumeric display and keypad on the NHTC/NHPC, the humidifiers can be adjusted to obtain an output between 20% and 100% of its rated capacity.

C.DRAIN CYCLE AND CYLINDER LIFE

(1)Water Type Used (Potable or Softened)

(a)The electrode steam product line is one of the most efficient humidifier systems since it uses the minerals in the water to conduct electricity. If no minerals are present no current can pass from one electrode to another, thus no steam production can occur.

(b)Although the electrode steam humidifier is ideal for potable water, it should not be used with pure reverse osmosis or deionized water since the conductivity is too low.

(2)Water Conditions vs Cylinder Life

(a)The NH Series is designed to adapt to most potable or softened water supplies. Since the output of all NH Series humidifiers is pure, clean steam,

minerals originally in the incoming water are left behind in the steam cylinder. Many of these minerals will be removed during short flush cycles within the cylinder. Therefore, the water chemistry, the unit running time, and output capacity setting ultimately determines the cylinder life. (See Figure .)

(3)Output vs Cylinder Life

(a)As minerals build-up on the electrodes in the cylinder of the NORTEC NH Series humidifier, the patented P+I Auto-Adaptive control system automatically raises the water level slightly in the cylinder. This exposes fresh electrode surface to the water and maintains peak output and efficiency from the humidifier. Once the

(b)electrode surface is completely encrusted by the minerals, the user is alerted

to change the cylinder. Other humidifiers’ performance degrades gradually as the minerals build-up. The NH Series maintains maximum efficiency then the cylinder is replaced. (See Figure .)

(4)Water Conditions vs Drain Rate

(a)The P+I Auto-Adaptive control system automatically adjusts the drain rate to maintain the design water conductivity required for proper operation. This ensures regular flushing of minerals which become concentrated in the water, and minimizing wastage of hot water. The humidifier automatically adjusts it’s drain rate with changes in incoming water conductivity through the Auto- adaptive water management system.

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Page 6 2008-10-01