Ray-Dot RVS-22HA User manual

Combined Ventilation Controller
RVS-22HA
4-stage Control for Power Applications
2 variable speed stages
and 2 thermo/mister cycle stages
Installation Guide
Read this guide carefully before installing the controller.

DO NOT SPRAY WATER ON THE CONTROLLER.
The room temperature where the controller is located MUST ALWAYS REMAIN
BETWEEN 32° AND 104°F (0° AND 40°C).
To avoid exposing the controller to harmful gases or excessive humidity, it is
preferable to install it in a corridor.
Inputs and outputs circuitry is protected against overload and overvoltage. However,
we recommend installing an additional protection device on the supply circuit as well
as an external relay on all ON-OFF stages to prolong the life of the controller.
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.
PRECAUTIONS
Serial number: ________________
Model number: RVS-22HA
FOR CUSTOMER USE
Enter below the serial number located
on the side of the controller and retain
this information for future reference.

TABLE OF CONTENTS
FEATURES................................................................................................................................... 2
CONTROL INTERFACE............................................................................................................... 4
COVER.................................................................................................................................... 4
DIP SWITCHES....................................................................................................................... 6
INSTALLATION............................................................................................................................ 7
MOUNTING INSTRUCTIONS................................................................................................. 7
CONNECTIONS...................................................................................................................... 7
Alarm Connection.............................................................................................................. 7
MOTOR TYPES ...................................................................................................................... 8
Selecting a Motor Type for Stage 1................................................................................... 8
Selecting a Motor Type for Stage 2................................................................................... 8
TEMPERATURE UNITS.......................................................................................................... 8
TEMPERATURE PROBES ..................................................................................................... 9
Connecting the Probes...................................................................................................... 9
Extending the Probes ........................................................................................................ 9
Installing the Room Probes................................................................................................ 9
Installing the Humidity Probe............................................................................................. 9
Defective Probes ............................................................................................................... 9
TROUBLESHOOTING GUIDE.................................................................................................... 11
TECHNICAL SPECIFICATIONS................................................................................................. 13
FACTORY SETTINGS................................................................................................................ 14
WIRING DIAGRAM..................................................................................................................... 16
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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. A humidity probe may be used to lower the humidity
level by activating stage 1 or by deactivating the mist stage.
It is important to read both the RVS-22HA User’s Guide and the present Installation Guide. The
Installation Guide provides information on physical characteristics of the controller, mounting,
connections, probes, troubleshooting and technical specifications. The User’s Guide explains
the workings of the controller parameters.
RVS-22HA highlights:
Displays absolute temperatures for all stages
Temperature readings and high/low for both room and individual readings
Selectable 2°F offset for all on/off stages
Optional humidity probe (reading and high/low) with relative humidity compensation
Alarms for high, low and critical temperatures; power failure alarms
Test mode
Set point and minimum ventilation curve, with 10 easily adjustable points
Temperature selection switch (°F or °C)
One heating zone
De-icing on variable stage 2
Standard alarm output
PC compatible
CSA approved for both the United States and Canada
Built-in adjustable timer on natural ventilation stage
Offsets alarm for mist, heat and stage 2
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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.
 Minimum ventilation cycle
When ventilation is not required for cooling, the first stage fans can be operated either
continuously or intermittently to reduce the level of humidity and supply oxygen to the room.
 Temperature and minimum ventilation speed curves
The controller can be set to automatically change the temperature set point and the minimum
ventilation speed over a given period of time in accordance with the user’s requirements by
specifying a temperature curve and a minimum ventilation speed curve with up to six different
points each.
 Choice of ten motor types
The variation in motor speed resulting from a change in voltage will depend on the make and
capacity of the motor. In order to achieve a high degree of compatibility between controller and
motor, the user can choose from ten different motor types, thus ensuring that the correct
voltages are supplied.
 Humidity compensation
The stage 1 minimum speed can be adjusted automatically as a function of relative humidity. As
humidity increases, the minimum speed of stage 1 fans increases proportionally to compensate
for the change.
 Full speed fan start up
In order to overcome the inertia of the ventilation system components and de-ice the fan blades
in cold weather conditions, the controller supplies maximum voltage to the variable speed fans
during the two seconds that immediately follow start-ups.
 Four independent temperature probe inputs
Up to four temperature probes can be connected to the controller in order to obtain a more
accurate reading of the average room temperature and a faster reaction time.
 Overload and overvoltage protection
Inputs and outputs circuitry is protected against overload and overvoltage.
 Test mode
A test mode allows the user to simulate temperature changes and verify controller performance.
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CONTROL INTERFACE
COVER
1 2 3 4 5
13 pilot lights
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RVS-22HA Installation Guide
Item Name Function
Digital display Displays the value of the parameter selected.
Parameter selection knob Used to select a parameter.
1
Push button A Used to access sub-parameters.
2
Push button B Used to access sub-parameters.
3
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).
Variable stage 1 Lights up when the fan variable stage 1 is activated.
Variable stage 2 Lights up when the fan variable stage 2 is activated.
Stage 3 Lights up when stage 3 is activated.
Stage 4 Lights up when stage 4 is activated.
Mist Turns on when the mister cycle stage is activated.
Heater 1 Lights up when heater 1 is activated.
Heater 2 Lights up when heater 2 is activated.
RH compensation Turns on when relative humidity is being compensated.
Temperature curve Is on when the temperature curve is activated.
Minimum speed curve Is on when the minimum speed curve (stage 1) is activated.
Defective probe Turns on when a probe is defective.
Alarm Lights up to signal an alarm.
4
5
13 pilot lights
Locked Is on when parameter settings are locked.
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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.
DESCRIPTION
The 12 DIP switches
DIP
SWITCH
NO. POSITION OPERATING MODE
Locking the parameters 1 ON
OFF Locked parameters Unlocked parameters
Temperature units 2 ON
OFF ° Celsius ° Fahrenheit
Probe 2 3 ON
OFF Enabled Disabled
Probe 3 4 ON
OFF Enabled Disabled
Probe 4 5 ON
OFF Enabled Disabled
Cooling or heating 6 and 7 6 OFF
6 ON
6 ON
and 7 ON or OFF
and 7 ON
and 7 OFF
Stage 3 Fan
Stage 3 Heater
Stage 3 Fan
Stage 4 Fan
Stage 4 Heater
Stage 4 Heater
Temperature heater 8 ON
OFF Zoned Heaters Cascading Heaters
Mist 9
ON
OFF Enabled Disabled
Offset on ventilation stages 10 ON
OFF 2°F (1.1°C) offset on ventilation stages No offset on ventilation stages
De-Icing 11
ON
OFF Enabled Disabled
Reserved 12 Reserved
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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. Make sure to position
the enclosure so that the power supply cord extends out
of the bottom section of the enclosure.
The bracket slots also serve to adjust the position of the
controller. Once you have adjusted the controller
position, tighten the four mounting screws.
CONNECTIONS
To connect the controller, refer to the wiring diagram enclosed with this installation manual.
1. Set the voltage switch to the appropriate line voltage.
2. Drill access holes on the bottom of the enclosure only. Do not drill holes on the side or
the top of the enclosure.
3. It may be necessary to install a transformer on the heating stage in order to supply the
appropriate voltage to the heating unit.
Alarm Connection
There are two types of alarms on the market. One type sets off when current is cut off at its
input; the other sets off when current is supplied at its input. For the first type of alarm, use the
NO terminal as shown on the wiring diagram. For an alarm of the second type, use the NC
terminal.
a
WARNING
ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRICIAN AND
MUST COMPLY WITH APPLICABLE CODES, LAWS AND REGULATIONS. BE
SURE POWER IS OFF BEFORE DOING ANY WIRING TO AVOID
ELECTRICAL SHOCKS AND EQUIPMENT DAMAGE.
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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.
MOTOR TYPES
TYPE NUMBER BRAND NAME MODEL DIAMETER VOLTAGE
1 to 8 Other — — —
Val-Co FW08W120MSA 8”
Val-Co FW10W130MSA 10”
Val-Co PM12^140MPA 12”
9
Val-Co PM16^140MPA 16”
230 V
Val-Co PM21^140MPA 21”, 3 blades
Val-Co PM21^190LPA 21”, 4 blades
Val-Co PM24^210MPA 24”
10 230 V
Val-Co PM36^280M*A 36”
Selecting a Motor Type for Stage 1
In the motor types table above, locate the make and capacity of your stage 1 variable speed
motors and note the corresponding type number (1 to 10).
1. Set the parameter selection knob to BANDWIDTH/TIMER (STAGE 1). The stage 1
bandwidth appears flashing on the display.
2. Press the push-button u. The message “tyP” appears on the display, alternating with the
currently selected type number, which flashes.
3. Using the adjustment knob, adjust the type number to the desired value.
4. Return to the stage 1 bandwidth display by pressing push-button vuntil the message
“bd” appears on the display, alternating with the bandwidth value, which flashes.
Selecting a Motor Type for Stage 2
Repeat the steps described for stage 1, this time setting the parameter selection knob to
MIN. SPEED (STAGE 2).
TEMPERATURE UNITS
When changing the temperature units (°F and °C), the display will show “88888” to indicate that
the control is rebooting with the new temperature unit. After changing the temperature unit, the
user must reset all of the controls parameters.
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RVS-22HA Installation Guide
TEMPERATURE PROBES
Connecting the Probes
The controller is supplied with one room probe connected to terminal # 1.
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°. Connect the probe shield to the power supply ground terminal.
a
CAUTION
Switches are used to activate or deactivate the additional probes connected to the controller.
Activate each additional probe by setting the appropriate switch to on.
– Switch # 3 activates the probe connected to input # 2;
– Switch # 4 activates the probe connected to input # 3;
– Switch # 5 activates the probe connected to input # 4.
Extending the Probes
Each probe can be extended up to 500 feet (150 meters). To extend a probe:
1. Use a shielded cable of an outside diameter ranging between 0.245 and 0.260 in. (6.22
and 6.60 mm) to ensure the cable entry is liquid-tight. Cable size should not be under 18
AWG.
2. It is preferable to solder the cable joints (to ensure a proper contact between the two
cables) and to solder the shields.
Installing the Room Probes
Locate the room probe connected to terminal # 1 in the center of zone A and the room probe
connected to terminal # 2 in the center of zone B.
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. If all room probes are defective or missing,
the screen will display “P Lo” when the parameter selection knob is set to ROOM TEMP., and
the controller will operate according to the minimum ventilation cycle.
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RVS-22HA Installation Guide
To identify the defective probe:
Set the selection knob to ROOM TEMP. The room temperature is displayed.
Press push-button A or B until the screen displays “Pr#” (Probe # [number]). If the probe
connected to the corresponding terminal is not defective, the screen displays “Pr#” alternating
with the temperature measured by the corresponding probe. Otherwise, the letter displays
“Pr#” alternating with “Pr#Lo” or “Pr#Hi”.
Humidity Probe
If the humidity probe is defective or if there is no humidity probe, the defective probe pilot light
does not turn on, but the display shows the letter “P Lo” or “P Hi” when the parameter selection
knob is set to STAGE 1 HUMIDITY (refer to “Stage 1 Humidity Readout”in the User’s Guide).
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TROUBLESHOOTING GUIDE
PROBLEM 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.
There is no display.
The display board interconnect
cable is not properly plugged
into the power supply board.
Be sure the cable is firmly plugged in.
All activated probes are
improperly connected. Make the correct room probe connection.The display shows “P Lo” or “P Hi” when the
parameter selection knob
is set to ROOM TEMP. All activated probes are
defective. Refer to “Defective Probes”.
The defective probe pilot
light is on. One or more probes are defective. Refer to “Defective Probes”.
A variation in resistance is
induced on a probe. Be sure the probes are dry. Locate them away from drafts and sources of radiant
heating.
The display shows
sudden variations in the
room temperature. There is electrical noise near a
probe cable. Isolate the probe cables from all high voltage sources. Do not route probe
cables and other power cables through
the same electrical knockout. Do not run
probe cables next to other power cables.
When crossing other power cables, cross
at 90°.
The wiring is incorrect. Be sure that each variable speed fan is
properly connected to the corresponding
VARIABLE STG1 & STG2 terminals.
Each fan requires two wires to be
connected.
The stage 1 and 2 fuse is
blown. Replace the fuse.
The minimum speed is too low. Adjust the minimum speed to a higher
value.
The stage 1 or 2 variable
speed fan is not running.
The fan motor is defective. Check if the motor is defective by
connecting it to an alternate power supply.
If it still is not operating, replace the motor.
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RVS-22HA Installation Guide
PROBLEM CAUSE SOLUTION
The wiring is incorrect. Fix the wiring.The stage 1 or 2 variable
speed fan runs
continuously at full speed. The ambient temperature is
above the set point +
bandwidth.
Adjust the set point or bandwidth to the
desired value.
The selected motor type is
inappropriate Select an appropriate motor type. Refer to “Motor Types”.
The bandwidth is too small. Adjust the bandwidth to a higher value.
The stage 1 on time or off time
is too short. Adjust the stage 1 on time or off time to a higher value.
A variation in resistance
induced on a room probe
causes this probe to measure
sudden variations in the room
temperature.
Be sure the room probes are dry. Locate
them away from drafts and sources of
radiant heating.
The stage 1 or 2 variable
speed fan runs erratically.
Electrical noise near a room
probe cable causes this probe
to measure sudden variations in
the room temperature.
Isolate the room probe cables from all
high voltage sources. Do not route probe
cables and other power cables through
the same electrical knockout. Do not run
probe cables next to other power cables.
When crossing other cables, cross at 90°.
The stage 1 off time is set to
zero. Set the stage 1 off time to a value other than zero.
The wiring is incorrect. Be sure that two wires connect the stage 1
fan to the corresponding VARIABLE STG1
terminal.
The stage 1 variable
speed fan runs
continuously when the
room temperature is
below the room set point
or when the controller
operates in minimum
ventilation cycle.
Humidity compensation is
activated and relative humidity
exceeds the humidity set point.
Adjust the humidity set point or deactivate
compensation, as required.
The wiring is incorrect. Be sure that two wires connect each stage
to the corresponding terminal.
The fan motor, heater or mist is
defective. Check if the motor, heater or mist is defective by connecting it to an alternate
power supply. If it still is not operating,
replace the motor or heater.
Stage 3 (fan, heater 2 or
mist),
or
stage 4 (fan, heater 2 or
mist)
is not functioning
properly. The controller is defective. Listen to check if there is a clicking sound
when the stage or heater-mist pilot light
turns on. If there is no clicking sound,
your controller needs repair.
The mist is not operating
as desired. The mist on time and off time were incorrectly adjusted. The mist on time is in seconds, and its off time is in minutes. Adjust the mist on time
and off time correctly.
The alarm’s fuse is blown. Replace the fuse.
The wiring is incorrect. Correct the wiring. Refer to “Alarm
Connection”.
The alarm doesn’t work
properly.
The alarm is defective. 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.
The controller is defective. Listen to check if there is a clicking sound
when the alarm pilot light turns on. If
there is not clicking sound, contact your
distributor to have the controller repaired.
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TECHNICAL SPECIFICATIONS
DESCRIPTION VALUE
Input power 10 W
Power source (line) 115/230 VAC, -20%, +10%, 50/60 Hz
Power fuse 0.125 A @ 250 V, slow blow, 5 X 20 mm
Stages 3 and 4 10 A @ 125/250 VAC
1 HP @ 250 VAC
½ HP @ 125 VAC
Stage 1 and stage 2 10 A @ 115/230 VAC
Minimal charge: 25 mA @ 50/60 Hz
Alarm relay 1 A @ 30 VDC
Stage 1 and stage 2 power source (line 1 and line 2) 115/230 VAC, -20%, +10%, 50/60 Hz
(same as line power)
Stage 1 and stage 2 fuse 15 A @ 250 VAC, slow blow
Storage temperature -4°F to 130°F (-20°C to 55°C)
Operating temperature 32°F to 120°F (0°C to 50°C)
Temperature range – inside probes -6°F to 168°F (-21°C to 76°C)
Weight 5.2 lbs. (2.36 kg)
Dimensions 11” X 7” X 6” (27.9 X 17.8 X 15.2 cm)
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FACTORY SETTINGS
Position
Parameter A↑B↓Factory
Setting Range of Values
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 —
ROOM
TEMP. ROOM TEMP. MIN./MAX.
Test Mode*OFF
-6.0 to 168.6°F (-21.1 to 75.9°C)
Set Point 75.0°F (24.0°C) -40.0 to 100.0°F (-40.0 to 40.0°C)
Adjust Day — 1 to 255
SET POINT/
T°CURVE Adjust Temperature —-40.0 to 100.0°F (-40.0 to 40.0°C)
Current Day
SET POINT
CURRENT
RAMPING DAY Adjust Current Day OFF OFF, 1 to 255
Minimum Speed 40 10 to 100%
Adjust Day — OFF, 1 to 255
MIN. SPEED/
CURVE Adjust Minimum Speed — 10 to 100%
Bandwidth 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C)
Min. Ventilation On Time 15
Min. Ventilation Off Time 0 0 to 900 seconds
BANDWIDTH/
TIMER Motor Type 10 1 to 10
Readout —
Lo —
HUMIDITY
MIN./MAX. Hi — 10 to 90 RH%
Compensation Option OFF ON/OFF
Humidity Set Point 65 10 to 90 RH%
STAGE 1
R.H.
COMPENSATION R.H. Speed Compensation 50 0 to 100%
* The Test Mode simulates a temperature reading, allowing the user to test the control’s reaction at a given
temperature.
To access the Test Mode, the user must position the parameter selection knob to ROOM TEMP. and press push-
button A or B until “tESt” appears alternating with “OFF” on the display. To activate the TEST MODE, the user must
turn the SET knob back and forth; “tESt” will briefly appear on the display, followed by the default simulation
temperature. Using the SET knob, the user may modify this default simulation value – which is the ROOM TEMP. –
by 0.1° increments, and specify any temperature ranging from -6.0°F to 168.6°F (-21.1°C to 75.9°C).
To deactivate the Test Mode, the user must move the SET knob back and forth; “tESt” will appear alternating with
“OFF” on the display. Or, if the user does not turn a knob or a push a button for five minutes, the control will
deactivate the Test Mode automatically.
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RVS-22HA Installation Guide
Position
Parameter A↑B↓Factory
Setting Range of Values
Offset
OFFSET/
BANDWIDTH Bandwidth 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C)
Minimum Speed 40 10 to 100%
De-icing Cycle Time 1 1 to 720 minutes
De-icing On Time 0 0 to 900 seconds
STAGE 2
MIN. SPEED
Motor Type 10 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)
On Time 60 0 to 900 seconds
TIMER ON (SEC.)
TIMER OFF (MIN.) Off Time 1 0 to 20 minutes
Offset 8.0°F (7.0°C)
Differential 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 11.0°C)
MIST
OFFSET/DIFF. Humidity Turn Off 75 40 to 90 RH%, OFF
Offset 3.0°F (3.0°C) -10.0 to 20.0°F (-5.5 to 11.0°C)
Differential 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 20.0°C)
HEAT 2 OFFSET/DIFF. Max. Diff. Prot. Bet. Zones 7.5°F (4.2°C) 5.0 to 40.0°F (0.3 to 20.0°C), OFF
Offset 3.0°F (3.0°C) -10.0 to 20.0°F (-5.5 to 11.0°C)
HEAT 1 OFFSET/DIFF. Differential 2.0°F (1.0°C) 0.5 to 20.0°F (0.3 to 20.0°C)
Low Offset 10.0°F (6.0°C) 0.5 to 40.0°F (0.3 to 20.0°C)
High Offset 12.0°F (7.0°C) 0.5 to 40.0°F (0.3 to 22.0°C)
Critical High Alarm 95.0°F (30.0°C) -40.0 to 120.0°F (-40.0 to 50.0°C)
ALARM ALARM
OFFSETS Alarm Individual/All ind. ind./ALL
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WIRING DIAGRAM
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MAY22 v1.1