Viconics H200 User Manual
ELECTRONIC HUMIDISTAT: H200
• ONE OR TWO STAGES
DESCRIPTION
The H200 series low voltage, microcomputer-based PI
(proportional and integral) humidistats are designed for
accurate humidification and/or dehumidification control
in non-corrosive commercial applications such as:
hospitals, schools, office buildings, retail stores,
museums, computer rooms, etc.
The H200 series is available with one or two outputs
for maximum flexibility. Outputs can be of the following
type: proportional, on/off, and pulse width modulation
(PWM). In addition, a wide variety of mounting
configurations is available. Sensing options include
remote duct and room as well as integral room and
duct.
Setpoint adjustment can be either concealed or
exposed, adding even more versatility to the product.
Exposed models feature internally selectable minimum
and maximum setpoint knob stops.
In order to facilitate periodic recalibration, the H200
series contains a unique autocal key, which permits
instant recalibration (see dimension drawing on page 5
for location).
Each humidistat is computer calibrated and factory
programmed with default parameters. All control
parameters (such as proportional band, stage
differential, etc.) may be changed in the field with the
H263 programming tool without having to remove the
thermostat cover. The H263 also doubles as a
diagnostic tool and indicates the status of all the inputs
and outputs, and will reduce troubleshooting time by
quickly identifying the specific problem.
Fig.1: Wall mounted humidistat
Features Benefits
• Microcomputer-based design with PI algorithm ⇒
• One or two outputs ⇒
• On/off and/or proportional outputs ⇒
• Direct or reverse acting outputs ⇒
• Integrated and remote sensing ⇒
• Autocal button ⇒
• Concealed or exposed set point ⇒
• Ouput signal to digital indicating devices ⇒
• Optional H263 diagnostic tool with digital display ⇒
• Sensor failure protection ⇒
• CE approved ⇒
Exceptional accuracy
Controls humidification and dehumidification equipment
Greater flexibility
Controls humidification and dehumidification equipment
Larger choice of mounting options
Permits instant recalibration
Can be used in a large variety of environments
Increases functionality of product
Simplifies troubleshooting
Prevent water dammage
Can be sold in European markets
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TABLE 1: ORDER CODE
WIRING
H200 - A-B - C-D - E-F
A Output no. 1 ( controlled device )
1 ON/OFF (15 min. time base)
4 (PWM) 24 VAC
5 (PWM) 5 VDC
6 Analog 0-10 VDC
B Output no. 2 ( controlled device )
0 Not installed
1 ON/OFF (15 min. time based)
4 (PWM) 24 Volts AC
5 (PWM) 5 Volts DC
6 Analog 0-10 Volts DC
8 Signal transmitter 0-10 VDC
(1V= 10% , 9V-90%)
9 Signal transmitter 0-5 VDC
(0.5V= 10% ; 4.5 V=90%)
C Output no. 1 and 2 control mode
1Humidify
2 Dehumidify
3 Humidify ( no. 1 ) and dehumidify ( no. 2 )
4 Dehumidify ( no. 1 ) and humidify ( no. 2 )
2 ON/OFF OUTPUTS
Single transformer
+
-
+
-
BLACK
WHITE
RED
RELAY
or 24 Vac VALVE
RELAY
or 24 Vac VALVE
HUMIDITY SENSOR
FOR CONTROL
24 Vac
INPUT
N/A
N/A
1
2
3
4
5
6
7
8
9
10
24 Vac
OUTPUT #2
ON / OFF
OUTPUT #1
ON / OFF
COMMON
♦
MAIN SENSOR
♦
+10 Vdc
Fig.2: Wiring diagram with single transformer
D Main sensor location Sensor
0 Not installed None
1 Inside humidistat ( Local ) H50
2 Duct mount ( stat on duct ) H60
3 Duct mount ( stat on wall ) H71
4 Rem ote wall mount H80
E Setpoint adjustment
1 User adjustable
2 Blind cover
F Future option
0 Unused
Example: H200 - 61 - 32 – 10
One “SCR” 0 to 10 volts humidify output and one relay
dehumidify output.
Humidistat and sensor are duct mount. Setpoint is user
adjustable.
♦ Resolution: 0.5 % for retransmit only
See sensor specifications for dimensions of sensors
Note: the complete order code includes the sensor that will
be shipped with the humidistat.
Multiple transformers
24 Vac
+
-
+
-
BLACK
WHITE
RED
RELAY
or 24 Vac VALVE
RELAY
or 24 Vac VALVE
HUMIDITY SENSOR
FOR CONTROL
24 Vac
INPUT
N/A
N/A
1
2
3
4
5
6
7
8
9
10
24 Vac
24 Vac
OUTPUT # 2
ON / OFF
OUTPUT # 1
ON / OFF
COMMON
MAIN SENSOR
+10 Vdc
Fig.3: Wiring diagram with multiple transformers
Note: Both of the above wiring diagrams show how to
wire output of type 1, 2, 3 and 4 (switched 24 Vac).
For outputs of type 5 and 6 (Vdc out) refer to Fig.4 and
Fig.5 on next page.
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