Varifan CPS-2C Operation manual

MANUAL
CPS-2C
Installation / User’s Guide
ATTENTION ELECTRICIAN
SEE WIRE DETAILS ON PAGES A-3 TO A-6 AND
ADDITIONAL INFORMATION IN SECTION B
2 AIR INLETS / CURTAINS
temperature / static pressure
1
®
Varifan
5 5
CPS-2C
PRB
HI
REC
6
12
310
11
7
9
12
8
PRB
21
2
OPEN CLOSE OPEN
5
CLOSE
4
OPEN
CLOSE
LO
REC LO REC
HI
REC
A
L
M
L
O
A
L
M
H
I
D
E
L
A
Y
D
E
L
A
Y
D
I
F
F
/
M
A
N
OPEN
CLOSE
MAN MAN
on
off
on
off
on
off
on
off
73.3
USER’S GUIDE INSTALLATION GUIDE
INDEX / WARRANTY WIRING DIAGRM

CPS-2C WIRING DIAGRAM
Section A-2 CPS-2C
WARNINGS AND PRECAUTIONS
Although the manufacturer has made every effort to ensure the accuracy of the
information contained herein, this document is subject to change without notice due to
ongoing product development.
WARNINGS AND PRECAUTIONS
Equipment, probe failure, blown fuses and/or tripped breakers may prove harmful to the
contents of the building. Therefore it is strongly recommended to install backup devices
and alarm or warning devices. Spare equipment should also be available at the owner’s
site. Equipment manufactured by the manufacturer is protected against normal line
surges. High surges caused by thunderstorms or power supply equipment may damage
this equipment. For added security against line voltage surges it is recommended that
surge and noise suppression devices be installed at the electrical distribution panel. Use
of shielded cable for probes is recommended for protection against lightning. These
devices are available from most electrical supply distributors.
RECOMMENDATIONS
The manufacturer recommends that all installation procedures described herein be
performed by a qualified electrician or installation technician. Furthermore the
manufacturer recommends testing all the functions and equipment connected to the
CPS-2C, including the alarm system and backup devices, after installation, after
changes to the installation and every month after that.
Fuse verification and replacement, as well as the proper setting of control values shall
be the responsibility of the owner of this equipment.

CPS-2C WIRING DIAGRAM
CPS-2C Section A-3
WIRING
DIAGRAM
CPS-2C
SECTION A

CPS-2C WIRING DIAGRAM
Section A-4 CPS-2C
Wiring Diagram Temperature Mode
INSIDE 1PROBE
INSIDE 2PROBE
INT 1
INT 2
GNA
CPS-2C18/11/11
Varifan
R
WIRING DIAGRAM
CPS-2C
8VAC
GND
ALARM
LINE
115/230V
L1
L2
30V/1A
MAX
8
9
SEE NOTES ON PAGE 6
WIRING DIAGRAM CPS-2C TEMPERATURE MODE
WARNING!!!
SET LINE VOLTAGE
TO CORRECT VALUE BEFORE
ATTEMPTING TO OPERATE
THE COMPUTER.
LINE VOLTAGE
SELECTOR
230V
ACTUATOR 1
CLOSE OPEN CLOSECOM
ACTUATOR 2
L2/N L2/N
L1
OPEN COM
L1
INLET 2
CLOSEOPEN
COM
INLET 1
CLOSEOPEN
COM
7
65
7
10
WIR
REV
0

CPS-2C WIRING DIAGRAM
CPS-2C Section A-5
Wiring Diagram Static Pressure Mode
CPS-2C18/11/11 WIR
REV
0
Varifan
R
WIRING DIAGRAM
SEE NOTES ON PAGE 6
WIRING DIAGRAM CPS-2C STATIC PRESSURE MODE
INT 1
INT 2
7
GNA
CPS-2C
8VAC
GND
ALARM
LINE
115/230V
L1
L2
30V/1A
MAX
8
9
WARNING!!!
SET LINE VOLTAGE
TO CORRECT VALUE BEFORE
ATTEMPTING TO OPERATE
THE COMPUTER.
LINE VOLTAGE
SELECTOR
230V
ACTUATOR 1
CLOSE OPEN CLOSECOM
ACTUATOR 2
L2/N L2/N
L1
OPEN COM
L1
INLET 2
CLOSEOPEN
COM
INLET 1
CLOSEOPEN
COM
STATIC PRESSURE
GE-SP1 (4-20mA)
GNA
PRB
8 VAC
or
12VDC
Input
Adaptor
IA-15
STATIC PRESSURE
GE-SP1 (4-20mA)
GNA
PRB
8 VAC
or
12VDC
Input
Adaptor
IA-15
65
7
10

CPS-2C WIRING DIAGRAM
Section A-6 CPS-2C
CPS-2C
Electrician’s notes
(PROBE WIRING) SHIELDED WIRE AWG #22 WITH 16/30 STRANDING,
500ft (150m) MAXIMUM LENGTH (Ex.: DECA 73-310).
For other probe, refer to specific probe manual for appropriate maximum length
and wire size or use AWG #22, 500ft (150m) MAXIMUM LENGTH.
(COMMUNICATION WIRING) SHIELDED LOW CAPACITANCE WIRE,
(Capacitance between conductors @ 1Khz = 24pF/ft), TWISTED PAIR (8
twist/ft), AWG #22, 820ft (250m) MAX LENGTH (Ex.: BELDEN 8761).
HIGH VOLTAGE WIRE INSTALLED ACCORDING TO LOCAL WIRING
CODE.
INSTALL LOW VOLTAGE WIRES (PROBES OR COMPUTER LINK) AT
LEAST 12in. (30cm) AWAY FROM HIGH VOLTAGE WIRES (120/230VAC,
24VDC). ALWAYS CROSS HIGH AND LOW VOLTAGE WIRES AT A 90-
DEGREE ANGLE.
RELAYS: 10A @ 240VAC RESISTIVE, MOTOR 1HP @ 240VAC, 1/2HP @
120VAC AT EACH OUTPUT.
MAXIMUM 2 WIRES OF SAME SIZE PER BLACK TERMINAL, NO BIGGER
THAN AWG #12, NO SMALLER THAN AWG #22.
1 WIRE ONLY PER GREEN TERMINAL. USE WIRE CONNECTOR IF YOU
WANT TO CONNECT MORE THAN 1 WIRE, NO BIGGER THAN AWG #12,
NO SMALLER THAN AWG #28.
CHECK INSTALLATION GUIDE FOR ALARM WIRING.
USE SHIELD FOR SHIELDING PURPOSE ONLY. CONNECT THE SHIELD TO
GROUND PLATE . NEVER LEAVE THE SHIELD UNCONNECTED AT BOTH
ENDS. NEVER CONNECT BOTH ENDS OF THE SHIELD TO GROUND
PLATE . THE USE OF A SHIELD FOR ALL PROBES IS MANDATORY.
FOR THE TEMPERATURE MODE, THE JUMPERS MUST BE SET TO STD
(STANDARD). FOR STATIC PRESSURE MODE, THE JUMPERS MUST BE
SET TO 4-20MA.
1
6
8
9
5
2
3
4
7
10

CPS-2C INSTALLATION
CPS-2C Section B-7
INSTALLATION
CPS-2C
SECTION B

CPS-2C INSTALLATION
Section B-8 CPS-2C
This section will inform the electrician on proper wiring and installation
procedures for the CPS-2C.
The manufacturer recommends that the following installation instructions to be
followed as closely as possible, and that all work be performed by a certified
electrician. Failure to do so may void the warranty.
Unpacking
Unpack the CPS-2C and inspect contents for damage. Should the contents
appear to be damaged, contact your local distributor to return the equipment.
The package should contain the following standard items:
1 CPS-2C Control
4 Brackets / 4 Screws
2 2004-10K Temperature Probe
1 Installation / User’s Guide
Mounting Hardware Required
This is the list of the mounting hardware needed, which is not included with the
product:
Shielded two-wire cable, AWG #22 (to extend probes)
Shielded two-wire twisted pair cable, AWG #22 (used for communication) see
electrician note for capacitance selection.
4 screws (to hang the unit onto the wall)
Screwdrivers
Soldering iron kit or approved sealed connectors.
Drill and hole saw kit

CPS-2C INSTALLATION
CPS-2C Section B-9
General installation guidelines
CPS-2C Control
-It is recommended to install the unit in a hallway to limit the CPS-2C exposure
to noxious gases.
-In order to avoid condensation problems inside the controller, it is
recommended to install the CPS-2C on an inside wall. If it is not possible, use
spacers to have an air gap between the wall and the CPS-2C.
-It is required to install the CPS-2C side up with the cable entry holes facing
down.
-The enclosure is watertight, but do not spray water or immerse the CPS-2C in
water. Cover it carefully with plastic when cleaning the room.
-The CPS-2C should be installed in easy access location but away from
damaging elements (heat, cold, water, direct sunlight, …).
-Do not drill the face, the side, the top or the rear of the control.
-Do not install the CPS-2C control near high voltage equipment, power supply
or transformer.
Electrical Cables
-All electrical cables must be installed according to local wiring codes.
-All cable shields must be connected to the CPS-2C power ground only,
except for the cable connected to the optional PC interface. The shield is
needed to protect the CPS-2C and the modules against any electromagnetic
interference generated by lightning or nearby operating machinery.
-Never use the shield as a conductor.
-Connect only one end of the shield to the ground of the CPS-2C.
-Use separate conduit for the low voltage cables (communication and probes)
and the high voltage cables. There must be at least 1 foot (30 cm) between
low voltage and high voltage conduits.
-If a low-voltage cable has to cross over a high voltage cable, make this
crossing at 90°.
-All cable connections must be soldered or done with approved sealed
connectors.
-Probe cables must be 500’ (150m) or less.
-Communication cables must be 820’ (250m) or less.
-It is prohibited to use overhead cables outside the building.

CPS-2C INSTALLATION
Section B-10 CPS-2C
Electrical Power
-Protection from electrical surge should be included in the planning of each
installation.
-It is strongly recommended to have a backup power source to ensure life-
sustaining conditions in case of power failure (see figure 4).
-The backup system and alarm must be thoroughly tested and verified as
working properly before using the ventilation system.
Mounting
-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 all wires extend 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.
FIGURE NO. 1 Mounting Position and Devices

CPS-2C INSTALLATION
CPS-2C Section B-11
Connection Procedure
Detailed Wiring Diagrams
Typical Sensor Wiring for Probes
The inside temperature sensor should be located in the area which gives the
most accurate temperature reading to achieve optimum ventilation. The sensor
should also be connected to the CPS-2C with a shielded two-wire cable. It should
be located in an area protected from operating machinery, animal bites,
personnel or anything that could damage the sensor. See also “General
installation guidelines”.
FIGURE NO. 2 Typical Temperature Probe Wiring
PROBE
IN T 1
INT 2
GNA
X1344
CPS-2C
JP1
INT1STD
INT14-20mA
JP1
1
1
1
SHIELD
Note: Jumper must be set to STD mode in order to use the temperature mode.
FIGURE NO. 3 Typical Static Pressure Probe Wiring
INT 1 IN T 2 GNA
X1344
CPS-2C
8VAC
GND
STATIC PRESSURE
GE-SP1 (4-20mA)
GNA
PRB
8 VAC
or
12VDC
Input
Adaptor
IA-15
JP1
INT1STD
INT14-20mA
JP1
SHIELD
Note: Jumper must be set to 4-20mA mode in order to use the static pressure mode.

CPS-2C INSTALLATION
Section B-12 CPS-2C
Typical Power Backup Wiring
A backup relay (DPDT) connects to the power source 1 in normal operation but
will switch to the power source 2 if source 1 is disabled. The backup relay should
be selected to ensure it is able to support the required power load.
FIGURE NO. 4 Typical Power Backup Wiring
8 PIN RELAY DPDT
(OMRON model MK2EP-UA-AC120)
3
4
5
6
2
1
8
7
NO2
NO1
NC 1
NC 2
COM 2
COM 1
L2/N GND
L1
3
4
5
6
2
1
8
7
L2 L1 GND
source 1
DISTRIBUTION
PANEL
L2 L1
N
LINE
115/230 VAC
source 2
DISTRIBUTION
PANEL
LINE
115/230 VAC

CPS-2C INSTALLATION
CPS-2C Section B-13
Typical Alarm Connection Wiring
The CPS-2C provides a normally closed dry contact to set off an alarm in case
low or high temperature condition occurs. Moreover, this same contact can be
used to signal a power failure or other malfunctions. It may be connected to an
alarm system or directly to a siren and /or auto-dialer.
The relay will activate 6-8 seconds after an alarm is triggered.
FIGURE NO. 5 Typical Alarm Connection Wiring
ALARM SYSTEM /
AUTO DIALER
GND
8VAC
ALARM
30V/1A
MAX
X1344
CPS-2C
INT 1 IN T 2 GNA
TEMP. PROBES

CPS-2C INSTALLATION
Section B-14 CPS-2C
Powering Up Procedure
Once the CPS-2C is properly mounted on the wall and all modules and sensors
connected to the terminal block, perform the following step:
Verify all Connections
Seal all cable entry holes.
Hermetically Close the CPS-2C
Close the front panel and the lower access cover.
Put the power on
Secure the front panel with a lock

CPS-2C INSTALLATION
CPS-2C Section B-15
Downloading the Configuration
When upgrading your system with a new configuration, you will have to download
the configuration.
There are two ways to download a configuration in the CPS-2C controller.
1) Downloading by powering down.
A. Ensure the power source of the CPS-2C is OFF (flip the circuit breaker on
the distribution panel).
B. Remove the faceplate screws and lift up the cover.
C. Insert the configuration chip (MMX) into the socket of the main board.
D. Switch on the power source. The display on the front panel should indicate
dNLD for approximately 15 seconds. If dNLD is not displayed, try one
more time. If dNLD is still not displayed, remove and replace the
configuration chip (MMX).
E. When the downloading procedure is complete, remove the configuration
chip (MMX) and place it in the bottom part of the enclosure or in another
safe location. Once the MMX Chip is removed, the CPS-2C starts up and
executes the configuration.
2) Downloading while the CPS-2C is powered up.
A. Remove the faceplate screws and lift up the cover.
B. Place the MMX chip into the socket of the main board. At this moment, the
MMX Detected parameter will appear.
C. Adjust the MMX Detected parameter to dNLD and press the SET/CLR
button. The display on the front panel should indicate dNLD for
approximately 15 seconds. If dNLD is not displayed, try one more time. If
dNLD is still not displayed, remove and replace the configuration chip
(MMX).
D. When the downloading procedure is complete, remove the configuration
chip (MMX) and place it in the bottom part of the enclosure or in another
safe location. Once the MMX Chip is removed, the CPS-2C starts up and
executes the configuration.
WARNING: During this procedure, some components are live and can
be dangerous if touched.

CPS-2C INSTALLATION
Section B-16 CPS-2C
Uploading the Configuration
It is possible to upload a configuration into a configuration chip (MMX) in order to
save parameters and setup or to backup the configuration.
Here’s the procedure to upload a configuration.
A. Make sure that the CPS-2C powered up.
B. Remove the faceplate screws and lift up the cover.
C. Place the MMX chip into the socket of the main board. At this moment, the
MMX Detected parameter will appear.
D. Adjust the MMX Detected parameter to upLD and press the SET/CLR
button. The display on the front panel should indicate upLD for
approximately 15 seconds. If upLD is not displayed, try one more time. If
upLD is still not displayed, remove and replace the configuration chip
(MMX).
E. When the uploading procedure is complete, remove the configuration chip
(MMX) and place it in the bottom part of the enclosure or in another safe
location. Once the MMX Chip is removed, the CPS-2C will continue to
execute the configuration.
WARNING: During this procedure, some components are live and can
be dangerous if touched.

CPS-2C INSTALLATION
CPS-2C Section B-17
CPS-2CCompatible Probes
This is the list of all compatible probes that can be connected with CPS-2C
control with a short description of their function.
Temperature probe 2004-10K (black cap)
Temperature probe with a temperature range of -58 to 140°F (-50 to 60°C).
Static Pressure probe GE-SP1
Static pressure probe with a measuring range of -0.500”H2O to 0.500”H2O.
CPS-2C Compatible Modules
This is the list of all compatible modules that can be connected with CPS-2C
control with a short description of their function.
Computer interface
NET-IN2 Communication Module (Module inserted into the controller to
communicate with the computer interface)
RF-IN Communication Module (Module inserted into the controller for a
wireless communication with the computer interface)

CPS-2C INSTALLATION
Section B-18 CPS-2C
Specifications
Storage temperature -4°F to 131°F (-20°C to 55°C)
Operating temperature 32°F to 113°F (0°C to 45°C)
Humidity 90% maximum Non-condensing
Weight 2.4 lb (1.1 kg)
Size 8 1/2” x 7” x 4 3/4” (22.6 cm x 17.7 cm x 11.5
cm)
Protection index IP 66
Warranty 2 years
POWER SUPPLY
Operational voltage range (SW1 @ 115V) 92 to 125VAC
Operational voltage range (SW1 @ 230V) 184 to 250VAC
Operational frequency range 45 to 65 Hz
Power supply circuit consumption (CPU
Board) 6 VA
SOURCE 8 VAC
Voltage range 6.5 to 13VAC
Maximum current allowed 50mA
PROBE INPUTS
Temperature probe 2004-10K
Static Pressure probe GE-SP1
Maximum wire length 500 feet (150 m)
Recommended wires 2 conductors, stranded, shielded, AWG #22
ALARM RELAY
Maximum current 1 A at 30VDC
Delay before activation Between 6 and 8 seconds
OUTPUT RELAYS
Maximum Current 1HP @ 240VAC, 1/2HP @ 120VAC,
10A@240VAC
Caution Notice These relays are rated by UL and CSA at 1HP
@ 240VAC, 1/2HP @ 120VAC. However, for
outputs requiring frequent activation (ex: inlet
working on a timer) it is recommended not to
use more than 1/2HP @ 240VAC, 1/4HP @
120VAC per relay.
Important Notice:
-It is important to have a backup system in case of a system failure.
-Low-voltage and high-voltage wire must be passed through different
conducts at least 1 foot (30 cm) apart. If low-voltage and high-voltage
conduits must be crossed, the crossing must be at a 90-degree angle.
- All wiring must be made by a certified electrician and conform to local
electrical regulations.

CPS-2C INSTALLATION
CPS-2C Section B-19
Troubleshooting
SYMPTOM CAUSE REMEDY
Temperature probe
reads LO Temperature is below -58°F (-50°C).
Probe is disconnected or
defective.
Check all connections. If
the problem persists, and
the temperature is within
normal range, replace the
probe.
Temperature probe
reads HI Temperature is above 140°F (60°C).
Probe is short circuited or
defective.
Check all connections. If
the problem persists, and
the temperature is within
normal range, replace the
probe.
Displays are blank CPS-2C is not powered.
Flat cable between the
main and top boards of the
CPS-2C is disconnected.
Make sure the control is
powered.
Make sure the fuse is
correct.
Make sure the flat cable is
connected.

CPS-2C USER’S GUIDE
Section C-20 CPS-2C
USER’S GUIDE
CPS-2C
SECTION C