Azbil CY7200A User manual

AB-5782
1
Carbon Monoxide Transmitter
CY7200A
General
A carbon monoxide transmitter detects levels of the poi-
sonous gas (CO) and sends a real-time value to a control
system installed in commercial and residential buildings.
The CY7200A transmitter has wide applicability for the
detection of concentration of CO in indoor spaces. Typ-
ical applications include detection of CO in parking gar-
ages and recreation or office spaces within a building.
Features
The transmitter uses the constant-potential electrolytic
method to provide fast, highly accurate readings. The
presence of other gases does not affect its CO
concentration measuring capability.
It detects CO in concentrations as low as 0 to 60 ppm,
and is ideal for controlling indoor CO levels.
It is designed for wall mounting it is light and compact
and has a design that bled in with residential humidity
detectors and other sensors.
Used in combination with programmable controller, it
optimizes control of fans and other ventilating devices
to maintain safe and pleasant indoor environments.
The system also may help to prevent excess energy
consumption in parking lots.
Specifications
Item Specifications
Sensing range CO concentrations of 0 to 60 ppm
Accuracy ±5 % FS (Calibrated using standard
gas)
Response Within 60s (90 % response)
Initial stabilizing time 10 min.
Working environmental
conditions Temperature: -5 to 45 °C Humidity: 10 to 95% RH
(non-condensing)
Transportation and
storage conditions Temperature: -15 to 55 °C Humidity: 10 to 95 % RH
(non-condensing)
Measurement principle Constant-potential electrolytic method
Output signals 4 to 20 mA (linearly corresponds to CO
concentrations of 0 to 60 ppm)
Two-wire system (with common power
supply line)
Power supply 24V DC (22 to 28 V DC) *1
Load resistnace 600 Ωor less
Insulation resistance 100 ΩM or greater (at 500V DC)
Item Specifications
Withstand voltage 1kVAC
Power consumption 1W or less
Weight 90 g
Wiring Two leads of IV 1.25 mm² or greater
recommended (max. length: 100m)
Body finish Cover: Pale beige (munsell 5Y 8/1)
Base plate: Black (munsell N3.0)
Mounting plate: Galvanized (chromed)
Auxiliaries
(order separately) Screws for mounting Base Plate and Mounting Plate:
Two screws: M4 × 8 mm
Two screws: M3 × 5 mm
One screw: M3 ×10 mm
Dust filter kit: CY7200Z2000
Consisting of: One filter
One filter cover
Five dust filters
(CY7200Z3000)
*1 Use Azbil Corporation’s RY7910D series power supply unit.
Specifications/Instructions

2 AB-5782
Model No.
Model No. Specifications
CY7200A1002
CO concentration transmitter (4 to 20 mA, 1 to 60 ppm)
Measurement Principle
(Constant-potential electrolytic method)
When gas is electrolyzed while maintaining potential be-
tween electrodes immersed in electrolyte, the current
assumes values proportional to the gas concentration.
Because the electric potential at which electrolysis takes
place depends on the gas, only CO concentration is
measured. CO concentration is, therefore, obtained
from the potential.
Dimensions(mm)
Fig.1 Dimensions
Fig.2 Mounting Plate Dimensions
Fig.3 Dust Filter
Safety Instructions
Please read instructions carefully and use the product properly. Please keep this instruction on hand for reference at
any time.
Usage Restrictions
This product is targeted for general air conditioning. Do not use this product in a situation where human life may be
affected. If this product is used in clean rooms or places where reliability or control accuracy is particularly required,
please contact Azbil Corporation’s sales representatives. Azbil Corporation bears no responsibility for any benefit, or
lack of benefit, derived from the operation by the customer.
WARNING
●On disposal, the CY7200A must be dealt with as industrial waste matter as its sensor contains sulfuric
acid. Should sulfuric acid leak and come into contact with skin, flush the affected parts immediately in
running water for at least 15 minutes.
CAUTION
●Installer must be a trained, experienced service technician.
●Check the ratings given in this instructions to prevent equipment damage.
●Check the environment given in this instructions to prevent equipment damage.
●Do not remove or disassemble the cover expect for wiring or part replacement. Equipment damage or
electrical shock may result.
72 39 8 11
71
20
50
Lead
300mm × 0.75mm² Sensor Cover
Fixing Screws
CO Gas Sensor
Fixing Screws
Filter Cover
Dust Filter
9.7
7.1
UP
86
66.7
43
86
φ4.5
Mounting
Hole
Mounting Plate (1.6t)
M3 for
Mounting Base
M3 for Mounting
4.5
M3 Mounting
Hole for Base Plate
Mounting Hole

3 AB-5782
Installation Site
When installing in indoor parking lots, ensure the follow-
ing requirements are satisfied:
1) Air flow from the fan must reach the CY7200A.
2) Install 2 to 2.5 m above floor level.
3) Install in a position where the CY7200A does not come
into direct contact with exhaust fumes.
4) Do not install near fan.
5) Install at least one CY7200A sensor on each floor of a
multi-story indoor garage. Install at least one sensor
in each area, if partitions segregate a floor into
multiple spaces.
System Configuration (ventilation fan control for
indoor parking lots)
Fig.4 System configuration
Installation (main unit)
1) Fasten the painting clearance cover with 66.7 mm
pitch (box cover, JIS C8336) on a standard outlet box.
2) Fasten the mounting plate on the painting clearance
cover.
3) Fasten the base plate on the mounting plate.
4) Connect the wires.
5) Remove the cover from the sensor/transmitter and
fasten the sensor/ transimitter on the base plate.
6) Fit the cover to the sensor/ transmitter.
Note: Order the base plate separately
Fig.5 Installation (main unit)
Fig.6 Cover with painting clearance complying with JIS
(for medium-sized square box, puchase locally)
Table 1
Lead wire color Signal
Red 4 to 20mA DC (+)
Blue 4 to 20mA DC (–)
Fig.7 Wiring
Install dust filter
Always install a dust filter when the sensor is to be in-
stalled in locations, such as bus terminals, where dust
and other contaminants are present.
Generally there is no need to install at dust filters on
sensors installed in underground parking lots.
NOTE:
Follow the instructions when wiring.
Do not break or short wiring. Faulty wiring may
cause damage to the sensor.
Do not incorrectly wire 24V DC and 100/ 200V
AC.
Put the controller electric input between the
sensor side (blue) and electric side.
Set the Co sensor element ion circuit.
1) Turn the power OFF and stop power supply.
2) Remove sensor cover.
3) Put filter cover inside filter. Make net face toward the
element.
4) Cover sensor. Insert screws vertically.
5) Tighten both screws evenly and in turn.
6) Check filter cover is correctly installed on element
before attaching to cover.
NOTE:
Always dispose of the sensor in an appropriate
manners. The CY7200A should be treated as
industrial waste, sensor contains sulfuric acid.
Communication with central
control system
CO concentration
transmitter CY7200A
A
zbil Corporation
controllers WY7211
and WY7217 Ventilation fan
●ON-OFF
●Multi-stage
●Inverter
Red (+)
Blue (–)
DC24V
(+)
DC24V
(
)
AC power source
(100/ 200 A)
To electric input of controller
(+) (–)
CY7200A RY7910D
Max 1.5 5
89
106
5
60 106
13
66 ± 0.4
Base plate (order separately)
83152965-001
Base
Lead wire Base plate mounting screw
(M3-5 mm x 2)
Mounting plate
Painting clearance cover
Base plate
Mounting plate mounting
screw M4-8 mm × 2
Cover

Specifications are subject to change without notice.
Building Systems Company
http://www.azbil.com/
Rev.1.2 Jun. 2014 AB-5782
NOTE:
Leaked sulfuric acid leak is dangerous. If
contacts skin, rinse with water affected parts
immediately for at least 15 minutes.
Fig.8 Mounting Dust Filter
Action Confirmation
After installation wait 10 minutes for the sensor to
stabilize. Then, check its output value against the
appropriate expected range.
Table 2
Place Range
Outdoor 0 to 3 ppm
Outdoor (near traffic) 5 to 10 ppm
Clean air office 0 to 5 ppm
Office 5 to 10 ppm
Clean air parking lot 3 to 15 ppm
Parking lot 15 to 30 ppm
Next, light a cigarette and blow the smoke over sensor.
Check that the CO concentration increases sharply
within one minute.
CAUTION
●Do not install in locations where flammable
gas may be present.
Sensor Cover
Fixing Screws
CO Gas Sensor
Fixing Screws
Filter Cover
Dust Filter