Table of Contents
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Technical Data
Outputs
Power supply
Power consumption
Set point range
Sensor precision
Proportional band
Electrical connection
Operating condition
Storage condition
temperature compensation
reset feature
Housing degree of protection
Interface
AM PM
. .
. .
MO TU WE TH FR SA SU
%RH
C
F
Dimensions
B
HRO20/100921
Features:
•
Attractive modern look with large LCD and backlight
•
Icons driven information and 1 line of text
•
External humidity sensor input
•
Humidification and dehumidification indicator
•
Multi level lockable access menu
•
Lockable Set point / Control mode
•
Window/outside temperature sensor input
•
Celsius or Fahrenheit scale selectable
Dehumidification proportional control signal, 0-10 Vdc / 2-10 Vdc
Window temperature sensor or outside temperature sensor (10 KΩ)
Inputs
external humidity sensor (0-10 Vdc / 2-10 Vdc) or high limit (0-10 Vdc / 2-10 Vdc)
Automatic readjustment of set point from a window temperature sensor (SHW0-11)
Weight
Symbols on display
Humidification ON
33,66,100% output
Dehumidification ON
33,66,100% output
Percentage of
%RH
humidity
E
D
A
C
Specification & Installation Instructions
Actual humidity (0-100%RH), 0-10 Vdc / 2-10 Vdc
Humidity set point (0-100%RH), 0-10 Vdc / 2-10 Vdc
Humidification proportional control signal, 0-10 Vdc / 2-10 Vdc
Humidification dry contracts 24 Vac, 1 A max, 3 A in-rush
Dehumidification dry contracts 24 Vac, 1 A max, 3 A in-rush
External set point from Neptronic humidifier,
1 alarm status digital input (24 Vac or dry contact)
22 to 26 Vac 50/60 Hz or 28 to 32 Vdc
10 - 90%RH (in 1% increments)
± 3% or better at 40%RH and 23ºC [73ºF]
2 % - 10 % for control signal
2
0.8 mm
[18 AWG] minimum
0ºC to 40ºC [32ºF to 104ºF], 0-95%RH
-10ºC to 50ºC [14ºF to 122ºF], 0-95%RH
or external temperature sensor (STC8-11)
IP 30 (EN 60529)
130 g. [0.3 lb]
ºC: Celsius scale
C
F
ºF: Fahrenheit scale
or
Menu set-up Lock
(Technician setting)
Dimension
A
B
C
D
E
Room Humidistat
HRO20
1 VA
Imperial (in)
2.85
4.85
1.00
2.36
3.27
HRO20
Alarm status
Metric (mm)
73
123
24
60
83
1
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Related Manuals for Neptronic HRO20
Summary of Contents for Neptronic HRO20
- Page 1 Dehumidification dry contracts 24 Vac, 1 A max, 3 A in-rush Window temperature sensor or outside temperature sensor (10 KΩ) External set point from Neptronic humidifier, Inputs external humidity sensor (0-10 Vdc / 2-10 Vdc) or high limit (0-10 Vdc / 2-10 Vdc)
- Page 2 Humidify set point analog output (AO4) Note: If dehumidify only is selected, AO4 = 0 V Alarm status digital input (DI1) External set point from Neptronic humidifier, external humidity sensor (0-10 Vdc / 2-10 Vdc) or high limit (0-10 Vdc / 2-10 Vdc) (AI1)
- Page 3 HRO20 Specification & Installation Instructions Programming Mode When in this mode this symbol is displayed. Please press on button to advance to the next program function, press on button to return to preceding stage and press on button to change value. You can leave the programming mode at any time, changed values will be recorded.
- Page 4 HRO20 Specification & Installation Instructions Step Display Description Values Adjust dehumidify set point: “adjust dehumi setpnt” Display shows and the dehumidify set point. You can change the dehumidify set point to the desired value; it should Set point range: 10 to 90%RH be within the humidity range.
- Page 5 • EHS.0 (external humidity sensor 0-10 Vdc), • EHS.2 (external humidity sensor 2-10 Vdc), • SPS (external set point from Neptronic humidifier), • HIL.0 (high limit 0-10 Vdc), • HIL.2 (high limit 2-10 Vdc). If you have selected OFF or SPS, go directly to step #20.
- Page 6 HRO20 Specification & Installation Instructions Operation Mode Step Description Display At powering up, humidistat will light display and activate all LCD segments during 2 seconds. Illuminating the LCD To illuminate the LCD, you just have to push onto any of the 4 buttons. LCD will light for 4 seconds.
- Page 7 HRO20 Specification & Installation Instructions Typical Wiring with SK300 Humidifier HRO20 humidistat Control terminal block wiring L1 L2 L3 5 Vdc Pressure Differential High limit switch High voltage power Low voltage control terminal block terminal block Typical Wiring with SK300 BACnet Humidifier...
- Page 8 HRO20 Specification & Installation Instructions Typical Wiring with SKG Humidifier To be wired if you intend to control Humidifer from HRO20 (Mode External in Control Setup menu - Display #200) RS-232 ANLG OUT DUCT HUMID. 1 2 3 ROOM HUMID.
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