ELECTRONIC HUMIDISTAT: H200

Transcription

1 ELECTRONIC HUMIDISTAT: H00 ONE OR TWO STAGES DESCRIPTION The H00 series low voltage, microcomputerbased PI (proportional and integral) humidistats are designed for accurate humidification and/or dehumidification control in noncorrosive commercial applications such as: hospitals, schools, office buildings, retail stores, museums, computer rooms, etc. The H00 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. 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 H6 programming tool without having to remove the thermostat cover. The H6 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. 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 H00 series contains a unique autocal key, which permits instant recalibration (see dimension drawing on page for location). Fig.: Wall mounted humidistat Features Benefits Microcomputerbased design with PI algorithm Exceptional accuracy One or two outputs Controls humidification and dehumidification equipment On/off and/or proportional outputs Greater flexibility Direct or reverse acting outputs Controls humidification and dehumidification equipment Integrated and remote sensing Larger choice of mounting options Autocal button Permits instant recalibration Concealed or exposed set point Can be used in a large variety of environments Ouput signal to digital indicating devices Increases functionality of product Optional H6 diagnostic tool with digital display Simplifies troubleshooting Sensor failure protection Prevent water dammage CE approved Can be sold in European markets 0/06/0 LITH00XE0 H00.doc

2 TABLE : ORDER CODE WIRING H00 AB CD EF A Output no. ( controlled device ) ON/OFF ( min. time base) (PWM) VAC (PWM) VDC 6 Analog 00 VDC B Output no. ( controlled device ) 0 Not installed ON/OFF ( min. time based) (PWM) Volts AC (PWM) Volts DC 6 Analog 00 Volts DC Signal transmitter 00 VDC (V=, V) Signal transmitter 0 VDC (0.V= ;. V=) C Output no. and control mode Humidify Dehumidify Humidify ( no. ) and dehumidify ( no. ) Dehumidify ( no. ) and humidify ( no. ) D Main sensor location Sensor 0 Not installed None Inside humidistat ( Local ) H0 Duct mount ( stat on duct ) H60 Duct mount ( stat on wall ) H Remote wall mount H0 E Setpoint adjustment User adjustable Blind cover F Future option 0 Unused Example: H One SCR 0 to 0 volts humidify output and one relay dehumidify output. Humidistat and sensor are duct mount. Setpoint is user adjustable. Resolution: 0. % 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. Single transformer ON/OFF OUTPUTS Fig.: Wiring diagram with single transformer Multiple transformers COMMON 6 0 Vdc COMMON 6 0 Vdc 0 0 Fig.: Wiring diagram with multiple transformers or VALVE RELAY RELAY or VALVE RELAY or VALVE RELAY or VALVE Note: Both of the above wiring diagrams show how to wire output of type,, and (switched ). For outputs of type and 6 (Vdc out) refer to Fig. and Fig. on next page. 0/06/0 LITH00XE0 H00.doc

3 PROPORTIONNAL OUTPUT PROPORTIONNAL AND TRANSMITTER OUTPUT 0 to 0 Vdc ELECTRONIC MOTOR or "SCR" 0 to Vdc 0 to 0 Vdc TRANSMITTER DDC SYSTEM or METER 0 to 0 Vdc ELECTRONIC MOTOR or "SCR" 0 to 0 Vdc ELECTRONIC MOTOR or "SCR" COMMON 6 COMMON 6 0 Vdc 0 Fig.: Wiring diagram with two analog outputs 0 Vdc 0 Fig.: Wiring diagram with one analog and one transmitter output APPLICATION EXAMPLE: Steam humidification system controled by a 0 to 0 Vdc valve wired to output #. Remote humidity display using 0 to Vdc signal is wired to output #. The humidity sensor is located in the return air duct. Humidistat model number: H0060 Fig.6: Application example 0/06/0 LITH00XE0 H00.doc

4 TABLE : HUMIDISTAT ACCESSORIES H0 H60 H H0 H6 Internal humidity sensor for H00 humidistat and for H0 remote wall sensor. Duct humidity sensor to mount directly onto the back of any H00 humidistat. Duct humidity sensor to mount directly onto the supply or return of the ventilation duct. Wall humidity sensor to mount in any remote location. Programming tool for troubleshooting, viewing and modifying humidistat parameters Replacement lexan (cover sticker) for H00 humidistat. 000 Humidistat replacement base with connector (H0 internal humidity sensor not included). H0 INTERNAL SENSOR H60 DUCT SENSOR H REMOTE DUCT SENSOR This humidity sensor can be mounted directly on 000 humidistat base. This humidity sensor can be mounted directly onto the back of any H00 humidistat, with the supplied hardware. This transforms the humidistat into a ductmounted humidistat. This humidity sensor can be mounted directly onto the supply or return of the ventilation duct. The H00 may be located on the wall with humidity sensing from the remote H sensor location. H0 REMOTE WALL SENSOR This humidity sensor can be wall mounted in any remote location. The humidistat may be located on the duct or other location, with humidity sensing from the H0 sensor location. H6 PROGRAMMING TOOL This tool is used to change humidistat parameters. It is also useful for troubleshooting. Just plug it in the humidistat through the casing. See page 6 for more details. WARNING: All H00 humidistats are intended to control equipment under normal operating conditions. Where failure or malfunction of H00 series humidistats could lead to an abnormal operating condition that could cause personal injury or damage to the equipment or other property, other devices (limit or safety controls) or systems (alarm or supervisory) intended to warn of, or protect against, failure or malfunction of H00 humidistats must be incorporated into and maintained as part of the control system. 0/06/0 LITH00XE0 H00.doc

5 CONTROL SCHEMATIC: 0 HUMIDIFICATION SET POINT 0 DEHUMIDIFICATION d d 0 0 HUMIDIFICATION DEHUMIDIFICATION % % % 6 6% Fig.: Control schematic pb db pb = proportionnal band d = differential between output # and # db = dead band between humidification and dehumidification TABLE : H00 PARAMETERS CODE VALUES DEFAULT VALUE DESCRIPTION Db 0 to 0 % R.H. % R.H. Dead Band between humidification and dehumidification. SL 0 to 00 % R.H. % R.H. Supply Limitation: High humidity limit in the supply duct (H0 only) d 0 to % (of proportional 0 Differential for output #": Shift for output relative to output band) Pb 0 =.6 % R.H. = 6.% Proportional Band =. % R.H. = 6. % R.H. =. % R.H. =.6 % R.H. R.H. o 0 = Humidification "Output #" Action for output no = Dehumidification o 0 = Humidification "Output #" Action for output no = Dehumidification cc = Without integral "Control Code" = With integral t 0 = On/off "Time #" Time period for output no = minutes = second t 0 = On/off "Time #" Time period for output no. = minutes = second ra 0 = C DO NOT "Range" Temperature Scale = F CHANGE Ca ± % Calibration ( deviation mode: DO NOT MODIFY: USE AUTOCAL PROCEDURE; FOR H00 TRANSMITTER, USE THE ZERO POTENTIOMETER ON THE TRANSMITTER. ha 0 à "Hardware assembly" Code related to thermostat model and entered at initial setup at the factory. it to = TO MINUTES 60 "Integral time" Error integration time. Lt 0 à 0 C (0 à 0 F) 0 F "Lower temperature" minimum outside temperature for setpoint reset (model H0 only) Ht 0 à 0 C (0 à 0 F) F "Higher temperature" maximum outside temperature for setpoint reset (model H0 only) re à % R.H. 0 % R.H. "Reset Minimum humidity value ( % HR ) (model H0 only) Example: re =. Humidity setpoint will be reset from selected setpoint to, from Ht to Lt 0/06/0 LITH00XE0 H00.doc

6 AUTOCAL PROCEDURE. Measure the room humidity near the Viconics humidistat with an accurate hygrometer.. Turn the humidistat set point dial to match the reading of the hygrometer.. Push and hold the autocal button for few seconds or until the internal red light turns on. Look through the slots on the left side of the humidistat. SENSOR FAILURE PROTECTION The sensor is the most sensitive part of the humidistat and also the most exposed. In the case of a sensor failure in humidification mode, the H00 will automatically assume a failsafe output of. SPECIFICATIONS Operating Conditions: C to 0 C ( F to F ) Control: to % R.H. noncondensing Sensor: to 0 R.H. (see Note.) Resolution: ± 0. % Repeatability: 0. % Accuracy and sensor interchangeability: ± % R.H. from 0 to 00 % R.H. Range: 0 % to 0 % R.H. for to 0 C ( F to F ) Temperature effect: 0.0 % / F Outputs: Isolated Triac: 0 Vac at ½ A max.* 0 to VDC into KΩ resistance min. 0 to 0 VDC into KΩ resistance min. 0/ VDC at 0 ma max.for both outputs Power: VAC %, ; 0/60 Hz; VA Base & casing: Offwhite; self extinguishing ABS plastic *Triac outputs can only switch AC loads. Use relays when switching dc loads. Note. Humidity sensor: Solid state humidity sensor. Suitable for normal, clean air. Not to be used in corrosive or harmful environment. DIMENSIONS TABLE : SENSOR CHARACTERISTICS Wiring from top Security screw." [mm]." [mm] Cover." [mm] Fig.: Dimension drawing." [mm] Wiring from back Base." [mm] "Autocal" button (Invisible).00" [mm] Cover.60" [mm]." [mm].0" [0.mm]." [.mm] Note: Specifications and equipment are subject to change without prior notice. 0." [.mm] Voltage between black and white wire, terminals #6 and # OUTPUT 0 %.0 V %. V 0 %. V %. V 0 %.6 V %. V 0 %. V %.06 V 0 %.0 V %. V 0 %. V %.6 V 60 %. V 6 %. V 0 %.0 V %. V 0 %.6 V %.0 V 0 %.6 V %. V 00 %. V Viconics Electronics Inc., Langelier Blvd, StLeonard, Quebec, Canada HP K LITH00XE0 H00.doc sales@viconics.com 6