Programming Instructions
IMPORTANT: If the programming sequence is interrupted for more than 15 seconds or not completed to the blank
screen stage, the unit will automatically revert to the humidity display mode WITHOUT acknowledging any
new values (tamper resistant feature).
B. DIFFERENTIAL(S), HIGH/LOW SETPOINT LIMITS AND CALIBRATION – To program these parameters, press
the "hidden" button located behind the "%RH" symbol (instead of the SET button), and repeat the programming
procedure described in step A.
1. Differential "dIF" – setting a positive differential value will close the NO (normally open) relay(s)
on humidity fall (humidification applications) and open the relay(s) on humidity rise. A negative differential
setting will close the NO relay(s) on humidity rise (dehumidification applications) and open the relay(s) on
humidity fall. Differential is programmable from –30% to +30%. DO NOT SET DIFFERENTIAL AT "0".
2. High and Low Setpoint Limits "HI" and "LO" – allow you to limit the range in which the setpoints can
be programmed. Also, by programming the high and low setpoint limit values to the same number, a
tamper-resistant fixed setpoint is established.
3. Calibration "CAL" – Controller calibration can be prog30%. Unit is factory calibrated to a
certified standard.
A. SETPOINT(S)
1. To start the programming sequence, press the SET button once. Unit displays "SP1" (setpoint 1).
2. Press the SET button again to display SP1 value.
3. To program an increase or decrease in SP1, press the appropriate ADJUST arrow.
4. Repeat steps 1 thru 3 for SP2 (setpoint 2, dual stage model only).
5. To complete the programming sequence, press the SET button until the screen
goes blank. After five seconds, the unit will automatically display sensor humidity.
Please use the following example when ordering:
HC = Humidity Controller
HC – 110 S – 24VAC
Ordering Information
In addition to standard models, Control Products specializes in complete custom design of electronic controls.
Modifications of standard controls such as wire length and guarded access are also available. Please consult factory
for more information.
Custom Design & Modifications
S or D
S = single stage
D = dual stage
110 series
Rev. 5-95
Control Products, Inc. warrants its products to be free from defects in material and workmanship under normal use for
one year and is not responsible for consequential damages or installation costs of any nature. Exposure to contaminants
and extreme environmental conditions such as moisture, temperature, chemicals, etc. may cause the unit to degrade or
fail. Control Products accepts no liability for product applications or customer application testing.
Warranty
Supply Voltage Options
24 = VAC
24VDC = 24 VDC
or
12 = VAC
12VDC = 12 VDC
