Pure Humidifier EC Series Operation Manual

2
3. 10-Position DIP Switch:
Switches 1 thru 4: Switches 1 thru 4 set the Duration of the Automatic Drain Cycle. The switches
are for 2 minutes, 4 minutes, 8 minutes, and 16 minutes, respectively. Switching the appropriate
switch to the RIGHT selects that amount of time, and any combination of switches can be selected
adding up to the desired time. Adjustable range is 2 to 30 minutes in 2 minute increments.
Switches 5 thru 8: Switches 5 thru 8 set the time Interval between the Automatic Drain Cycles.
The switches are for 10 hours, 20 hours, 40 hours, and 80 hours respectively. Switching the
appropriate switch to the RIGHT selects that amount of time, and any combination of switches can
be selected adding up to the desired time. Adjustable range is 10 to 150 hours in 10 hour
increments.
Switches 9 and 10: Switches 9 and 10 are for the Cool Down Tempering cycle. The cool down
cycle allows the fill valve to open for a selected time prior to the drain valve opening, lowering the
water temperature. The switches are for 2 minutes and 4 minutes respectively. Switching the
appropriate switch to the LEFT selects that amount of time, and either one or both switches may be
selected adding up to the desired time. NOTE: Having both switches in the RIGHT position turns the
cool down option OFF. Adjustable range is 2 to 6 minutes in 2 minute increments.
SCR Modulation
SCR Modulation provides optimum humidifier control by infinitely modulating the heater output from
0-100%. Optimum control and quiet operation make this an unbeatable combination. “Zero Adj”
control is provided for fine tuning the input signal. Cycle rate is preset for optimum performance.
Range Changing: Range changes can easily be made in the field by configuring the “Sensor
Range Jumpers”. Six (6) standard ranges are available and one (1) user specified range can be
ordered.
Available Ranges:
1-18 vdc (Jumpers on B-G-K)
1-5 vdc (Jumpers on C-H-L)
2-10 vdc Control (Jumpers on E-H-L)
6-9 vdc (Jumpers on D-I-M)
4-20 mA dc (Jumpers on C-H-L-O)
3 wire Resistive (Jumpers on C-H-L-P)
User Specified, special order (Jumpers on A-F-J)
NOTE:
• SCR Operation (Jumper on “N” Position)
• For 4-20 mA Operation (Jumper on “O” Position) for single input models only. Refer to wiring
diagram for dual input systems.
• Jumper Positions “Q” and “R” are for jumper storage only, and do not affect operation or
calibration.

Pure Humidifier EC Series Specifications

General

Brand	Pure Humidifier
Model	EC Series
Category	Humidifier
Language	English