Macurco™ CM-6 Carbon Monoxide Detector, Controller and Transducer User Instructions Important: Keep these User Instructions for reference
TABLE OF CONTENTS GENERAL SAFETY INFORMATION Intended Use List of Warnings and Cautions USE INSTRUCTIONS AND LIMITATIONS Use For Do Not Use For General Description Features Specifications INSTALLATION AND OPERATING INSTRUCTIONS Location Installation Garage diagram 4-20 mA Output diagram Multiple Device diagram Alarm Control Panel diagram DVP-120 Control Panel diagram Alternate Alarm Panel Power Up Operation Default - Factory Settings Display setting Buzzer setting Alarm Relay setting Alarm Relay Configurati
GENERAL SAFETY INFORMATION Intended Use The Macurco CM-6 is a low voltage, dual relay Carbon Monoxide (CO) detector, controller and transducer. The CM-6 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of Carbon Monoxide and provide feedback and automatic exhaust fan control to help reduce CO concentrations in parking garages, maintenance facilities or other commercial applications.
USE INSTRUCTIONS AND LIMITATIONS ! WARNING Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result in sickness or death.
Features ETL LISTED Certified to CAN/CSA Std. C22.2 No 61010-1 Conforms to UL Std. 61010-1 Low level meter capable of displaying from 0-200 ppm of CO The CM-6 meets the Uniform Building Code for enclosed garages and meets OSHA standards for CO exposure Selectable fan and alarm relay activation 5 A SPDT fan relay controls starters of exhaust fans 0.5 A N.O. or N.C.
! WARNING This detector helps monitor for the presence and concentration level of a certain specified airborne gas. Misuse may produce an inaccurate reading, which means that higher levels of the gas being monitored may be present and could result in overexposure and cause sickness or death. For proper use, see supervisor or User Instructions, or call Technical Service at 1-877-367-7891. Location A CM-6 is normally mounted at breathing level, about 5 feet (1.
8. The Fan Relay can be configured for latching or non-latching (default) when activated (when the gas concentration exceeds fan relay set point). Once latched in, power will need to be interrupted or the “TEST” button pressed to un-latch the relay condition. 9. The Fan Relay will engage if the fan setting Carbon Monoxide concentration is exceeded for longer than the Fan Relay Delay time.
Power Up The CM-6 cycles through an internal self-test cycle for the first minute that it is powered. The unit will execute the test cycle any time power is dropped and reapplied (i.e. power failure). During the self-test cycle the unit will display the firmware version number, then count down from 60 to 0 (if the display setting is “On”) and finally go into normal operation.
Selecting Default Configuration – “dEF” To select the Default Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The first selection is the “dEF” or Default setting. Push Enter. If it is already in Default configuration, there will be no action. If it is not already in Default configuration, “nO” will be displayed.
Selecting Alarm Relay Setting – “ArS” To select the Alarm Relay Setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The fifth selection is the “ArS” or Alarm Relay Setting. Push Next three times to get to “ArS” then Enter. If the display is “OFF” (disabled) push Next to change it to 50, 100, 150 or 200 ppm (flashing) then push Enter to confirm the change (solid) and push Enter again to return to “ArS” in the Con menu.
Selecting Trouble Fan Setting Option – “tFS” To select the Trouble Fan Setting Option, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The eleventh selection is the “tFS” or Trouble Fan Setting Option. Push Next ten times to get to “tFS” then Enter. If Trouble Fan Setting is “OFF” push Next to turn it to “ON” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to “tFS” in the Con menu.
Sensor Poisons The gas sensor in the detector is designed with extreme sensitivity to the environment. As a result, the sensing function may be deteriorated if it is exposed to contaminants, a direct spray from aerosols such as paints, silicone vapors, etc., or to a high density of corrosive gases (such as hydrogen sulfide, sulfur dioxide) for an extended period of time. MAINTENANCE The CM-6 is low maintenance.
CAUTION Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently scratch the surfaces and damage the display window, labels, sensor or instrument housing. Cleaning Cleaning of the external surfaces is best carried out using a damp cloth with a mild detergent or soap. Use a vacuum cleaner with soft brush to remove dust or contamination under the cover. Do not blow out the sensor with compressed air.
e. 8. The 4-20mA output will then ramp up from 4 to 16 mA over the next 130 seconds of the test, so if the circuit is wired in the normal manner, the control panel or building automation system should respond. f. At the end of the test cycle, the light will turn green and be on steady (Normal Operation), the fan & alarm relay will be in standby mode and the 4-20 mA output will return to 4 mA (in clean air). When testing is completed reassemble the unit or units.
FCK Information Several detectors can be calibrated with one FCK. The only limitation is the amount of gas in the cylinder. The 17 liter cylinder has approximately 85 minutes of continuous calibration run time. Replacement cylinders are available. The gas cylinder should be replaced when the pressure gauge on the regulator shows 25-psi or less. Note: For optimum test results it is suggested that the unit be in clean air, green light on, and be in a low ambient air flow Gas Testing Testing the Fan Relay 1.
Testing the Alarm Relay Note: The CO concentration to activate the Alarm relay depends on the setting. 1. Connect the 200ppm cylinder of carbon monoxide to the regulator. 2. Check the pressure gauge. If there is 25psi or less the cylinder should be replaced. 3. Place the Test Hood over the CO sensor. Turn on the regulator to start the gas flow. 4. The Fan relay should activate according to the settings. 5.
3. 4. 5. 6. Check that the CM-6 status indicator light is illuminated, Green continuously. If not, do not proceed with tests. See CM-6 Onboard Diagnostics section. The display option should be set to “On” and reading 0 ppm in clean air. With the CM-6 cover on, aim the nozzle of the aerosol can into the sensor grate area (under DO NOT PAINT) and press for 2 to 3 seconds. Wait for a few seconds.
MACURCO FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY Macurco warrants the CM-6 gas detector will be free from defective materials and workmanship for a period of two (2) years from date of manufacture (indicated on the inside cover of the CM-6), provided it is maintained and used in accordance with Macurco instructions and/or recommendations.
