Combined Ventilation Controller RVS-22HA 4-stage Control for Power Applications 2 variable speed stages and 2 thermo/mister cycle stages 72.5 VAR STAGE 1 VAR STAGE 2 STAGE 3 A STAGE 4 MIST ROOM TEMP. MIN MAX HEATER 1 HEATER 2 B ALARM OFFSETS HEAT 1 HEAT 2 RH COMPENSATION T° CURVE MIN. SPEED CURVE DEFECTIVE PROBE MIST OFFSET / DIFF. CURRENT RAMPING DAY OFFSET / DIFF. MIN. SPEED / CURVE OFFSET / DIFF. BANDWIDTH / TIMER STAGE 1 HUMIDITY MIN / MAX ON (SEC.) TIMER OFF (MIN.
PRECAUTIONS We strongly recommend connecting the controller to an alarm system, and installing a supplementary natural ventilation system as well as a back-up thermostat on at least one cooling stage. Refer to the wiring diagram enclosed with this installation guide to connect the thermostat. Inputs and outputs circuitry is protected against overload and overvoltage.
TABLE OF CONTENTS FEATURES ......................................................................................................................2 CONTROL INTERFACE ..................................................................................................4 COVER.................................................................................................................................. 4 DIP SWITCHES.................................................................................................
FEATURES The RVS-22HA is a powerful environmental controller that can manage two variable ventilation stages and two on/off ventilation/mist/heater stages. The “room temperature” is the temperature averaged from 1 to 4 probe readings. Heaters follow either the room temperature or a zone temperature, depending on user setup. A humidity probe may be used to lower the humidity level by activating stage 1 or by deactivating the mist stage.
RVS-22HA Installation Guide Here is a brief description of the RVS-22HA main features. Digital display A three-digit display provides a high level of accuracy, allowing the user to specify a temperature to within one tenth of a degree (in Fahrenheit or Celsius units). Pilot lights Pilot lights indicating the status of outputs allow you to monitor the operation of the system from a distance.
RVS-22HA Installation Guide CONTROL INTERFACE COVER 1 2 3 4 72.5 VAR STAGE 1 VAR STAGE 2 STAGE 3 A 13 pilot lights STAGE 4 MIST ROOM TEMP. MIN MAX HEATER 1 HEATER 2 B ALARM OFFSETS HEAT 1 HEAT 2 RH COMPENSATION T° CURVE MIN. SPEED CURVE DEFECTIVE PROBE MIST SET POINT / T°CURVE OFFSET / DIFF. CURRENT RAMPING DAY OFFSET / DIFF. MIN. SPEED / CURVE OFFSET / DIFF. BANDWIDTH / TIMER STAGE 1 HUMIDITY MIN / MAX ON (SEC.) TIMER OFF (MIN.) STAGE 3 ALARM LOCKED 5 DIFF.
RVS-22HA Installation Guide Item Name Function Digital display Displays the value of the parameter selected. 2 Parameter selection knob Used to select a parameter. 3 Push button A Used to access sub-parameters. 4 Push button B Used to access sub-parameters. 5 Adjustment knob Used to adjust the value of the selected parameter and to access the TEST MODE (for an explanation on the test mode, see the footnote in the Factory Settings section).
RVS-22HA Installation Guide DIP SWITCHES These internal switches, located on the electronic card attached to the back of the cover, are used to set the operating modes described in the table below. When the controller is shipped from the factory, all the switches are set to off. The 12 DIP switches DESCRIPTION DIP SWITCH NO.
RVS-22HA Installation Guide INSTALLATION MOUNTING INSTRUCTIONS The enclosure must be mounted in a location that will allow the cover to be completely opened right up against the wall. Fasten the four brackets to the four mounting holes on the back of the enclosure, using the four screws provided with the brackets. Then mount the enclosure on the wall by inserting screws through the brackets’ adjustment slots, into the wall.
RVS-22HA Installation Guide MOTOR TYPES The relationship between the voltage supplied to a motor and its operating speed is described by a motor type. This type varies with the make and capacity of the motor. The various motors available in the industry have been represented. Select the appropriate type to ensure that the controller supplies the correct voltage to the stage 1 and 2 variable speed fan motors. The factory default selection is type number 10.
RVS-22HA Installation Guide TEMPERATURE PROBES Connecting the Probes The controller is supplied with one room probe connected to terminal # 1. CAUTION The probes operate at low voltage and are isolated from the supply. Be sure that probe cables remain isolated from all high voltage sources. In particular, do not route the probe cables through the same electrical conduits as other cables. Do not run probe cables next to other power cables. If crossing over other cables, cross at 90°.
RVS-22HA Installation Guide Installing the Humidity Probe Install the humidity probe in the middle of the controlled area, where there is good airflow. Defective Probes Room Temperature Probes If an activated probe is defective or missing, the defective probe pilot light turns on. The display shows the value of the temperature measured by the remaining room probe(s), and the controller operates according to this temperature.
RVS-22HA Installation Guide TROUBLESHOOTING GUIDE PROBLEM There is no display. CAUSE SOLUTION The circuit breaker on the service panel is off or tripped. Reset the circuit breaker. The wiring is incorrect. Correct the wiring. The input fuse is open. Replace the fuse. The voltage selector switch is in the wrong position. Set the switch to the correct position. The display board interconnect cable is not properly plugged into the power supply board. Be sure the cable is firmly plugged in.
RVS-22HA Installation Guide PROBLEM The stage 1 or 2 variable speed fan runs continuously at full speed. The stage 1 or 2 variable speed fan runs erratically. CAUSE The wiring is incorrect. The ambient temperature is above the set point + bandwidth. The selected motor type is inappropriate The bandwidth is too small. The stage 1 on time or off time is too short. A variation in resistance induced on a room probe causes this probe to measure sudden variations in the room temperature.
RVS-22HA Installation Guide PROBLEM The alarm doesn’t work properly. CAUSE The alarm’s fuse is blown. The wiring is incorrect. The alarm is defective. The controller is defective. RAY DOT Ventilation Control SOLUTION Replace the fuse. Correct the wiring. Refer to “Alarm Connection”. Verify if the alarm unit is defective by connecting it to an alternate power supply. Replace the alarm unit if it still is not operating. Listen to check if there is a clicking sound when the alarm pilot light turns on.
RVS-22HA Installation Guide TECHNICAL SPECIFICATIONS DESCRIPTION Page 14 VALUE Input power 10 W Power source (line) 115/230 VAC, -20%, +10%, 50/60 Hz Power fuse 0.
RVS-22HA Installation Guide FACTORY SETTINGS ROOM TEMP. Position Parameter A↑ ↑ B↓ ↓ Factory Setting ROOM TEMP. MIN./MAX. Room Temp. Readout Lo Hi Probe 1 Readout Probe 1 Lo Probe 1 Hi Probe 2 Readout Probe 2 Lo Probe 2 Hi Probe 3 Readout Probe 3 Lo Probe 3 Hi Probe 4 Readout Probe 4 Lo Probe 4 Hi Test Mode* Software Version — — — — — — — — — — — — — — — OFF 2 SET POINT/ T°CURVE Set Point Adjust Day Adjust Temperature 75.0°F (24.0°C) — — -40.0 to 100.0°F (-40.0 to 40.0°C) 1 to 255 -40.0 to 100.
RVS-22HA Installation Guide Position Parameter A↑ ↑ B↓ ↓ Factory Setting Range of Values OFFSET/ BANDWIDTH Offset Bandwidth 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C) MIN. SPEED Minimum Speed De-icing Cycle Time De-icing On Time Motor Type 40 1 0 10 12 to 100% 1 to 720 minutes 0 to 900 seconds 1 to 10 STAGE 4 DIFF. Stage 4 Differential 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C) STAGE 3 DIFF. Stage 3 Differential 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C) TIMER ON (SEC.
117 721 For routing cable into the controller housing, drill holes at the bottom of the housing. Do not drill holes on the sides of the housing. W Required clearance: 12” above controller housing, to allow for cover opening. Provide surge protection (to include protection from lightning) from power supply to control and from control to output extended probe. Consult a certified electrician for specific recommendations. Set the voltage switch to the appropriate voltage.
RVS-22HA Installation Guide NOTES Page 18 RAY DOT Ventilation Control
RVS-22HA Installation Guide RAY DOT Ventilation Control Page 19
RVS-22HA Installation Guide Page 20 RAY DOT Ventilation Control
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