AGSNGTFT Gas and Electric Methane Detector Instruction Manual

AGSNGTFT Gas and Electric Methane Detector

Specifications

• Model: AGSNGTFT
• Dimensions: 5.5in x 3.75in
• Emergency Shutoff Type: AGSEPOTW
• Size: 3.25in W x 4.87in H
• Control Panel: MERLIN 1000S+
• Low Voltage: 12VDC, 3# 22AWG

Product Usage Instructions

Installation:

• Locate the gas detector at least 16in below the ceiling out of air flow or draft. Flush mount it on a single gang rough-in box.
• Wire additional buttons in series for operation.

Electrical Connection:

• Connect the gas detector to a utility control panel for gas and electrics using the specified wire gauge.
• Use a 4-pole electrical contactor to control power to classroom outlets. Mount it in an electrical enclosure in the ceiling.

Emergency Shutdown:

• In case of emergency, press the emergency shutoff button with the clear plastic flip-up cover.

FAQ

• What is the recommended wire gauge for electrical connections?
  • The recommended wire gauge for electrical connections is typically 2# 12-14AWG or as specified in the product manual.
• How should the gas detector be positioned for optimal performance?
  • The gas detector should be located at least 16in below the ceiling and out of air flow or draft to ensure accurate detection.

GAS AND ELECTRIC

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM

N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO SELECT GAS OR ELECTRICAL SERVICE. CONTROL PANEL TO PERFORM PRESSURE DROP TEST ON GAS LINE BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, SOLENOID AND ELECTRICAL CONTACTORS WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, SOLENOID AND CONTACTORS AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. 120V AC SUPPLY FROM CONTROLLER TO CONTACTORS. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM
N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO SELECT GAS OR ELECTRICAL SERVICE. CONTROL PANEL TO PERFORM PRESSURE DROP TEST ON GAS LINE BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, SOLENOID AND ELECTRICAL CONTACTORS WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, SOLENOID AND CONTACTORS AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. 120V AC SUPPLY FROM CONTROLLER TO CONTACTORS. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

SEQUENCE OF OPERATION:

1. KEYED AUTHORITY REQUIRED TO MAKE UTILITY SELECTION AND RE-SET PANEL AFTER AN ALARM. KEY IS NOT REQUIRED TO REMAIN IN THE PANEL AFTER THE INITIAL SELECTION HAS BEEN MADE. UTILITY SELECTION IS PROHIBITED AFTER INITIAL 10SECS WITHOUT THE AUTHORITY KEY.
2. GAS SERVICE ONLY SUPPLIED AFTER A 30SEC PRESSURE DROP TEST ENSURES ALL GAS TURRETS ARE CLOSED AND ALL GAS PIPE IS SOUND AND IN TACK.
3. ACTIVATION OF PANIC BUTTON, REMOTE PANIC BUTTON, FIRE ALARM INPUT, GAS DETECTOR AND TIME-OUT FUNCTION SHALL DEACTIVATE ALL UTILITIES.
4. LOW GAS PRESSURE BELOW 4.8INCH/WC THAT EXISTS FOR >10SEC SHALL CAUSE THE GAS TO BE SHUT DOWN.

GAS WITH EXHAUST FAN IN PANIC

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM
N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO SELECT GAS AND ELECTRICAL SERVICES. CONTROL PANEL TO PERFORM PRESSURE DROP TEST BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS. PANIC ALARM OR GAS DETECTION WILL INITIATE PURGE EXHAUST FAN.
2. TIMED PURGE INTERRUPTED BY F.A.C.P. RELAY TO SHUT DOWN FAN IN A FIRE ALARM CONDITION.
3. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, SOLENOID, ELECTRICAL CONTACTORS AND RELAYS WITH DRAWINGS AND OWNER IN FIELD.
4. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, SOLENOID, ELECTRICAL CONTACTORS AND RELAYS AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
5. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
6. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
7. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. 120V AC SUPPLY FROM CONTROLLER TO CONTACTORS. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
8. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
9. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM
N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO OPEN GAS SOLENOID. CONTROL PANEL TO PERFORM PRESSURE DROP TEST BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS. PANIC ALARM OR GAS DETECTION WILL INITIATE PURGE EXHAUST FAN.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, RELAYS AND SOLENOID WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, RELAYS AND SOLENOID AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

SEQUENCE OF OPERATION:

1. KEYED AUTHORITY REQUIRED TO MAKE UTILITY SELECTION AND RE-SET PANEL AFTER AN ALARM. KEY IS NOT REQUIRED TO REMAIN IN THE PANEL AFTER THE INITIAL SELECTION HAS BEEN MADE. UTILITY SELECTION IS PROHIBITED AFTER INITIAL 10SECS WITHOUT THE AUTHORITY KEY.
2. GAS SERVICE ONLY SUPPLIED AFTER A 30SEC PRESSURE DROP TEST ENSURES ALL GAS TURRETS ARE CLOSED AND ALL GAS PIPE IS SOUND AND IN TACK.
3. ACTIVATION OF PANIC BUTTON, REMOTE PANIC BUTTON, FIRE ALARM INPUT, GAS DETECTOR AND TIME-OUT FUNCTION SHALL DEACTIVATE ALL UTILITIES.
4. ALARM CONDITION SHALL INITIATE EXHAUST FAN. FAN SHALL RUN FOR ALLOTTED TIME OR WHILST MERLIN PANEL IS IN ALARM. F.A.C.P. RELAY SHALL INTERRUPT FAN POWER IN A FIRE ALARM CONDITION.
5. LOW GAS PRESSURE BELOW 4.8INCH/WC THAT EXISTS FOR >10SEC SHALL CAUSE THE GAS TO BE SHUT DOWN.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO SELECT GAS OR ELECTRICAL SERVICE. CONTROL PANEL TO PERFORM PRESSURE DROP TEST ON GAS LINE BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, SOLENOID AND ELECTRICAL CONTACTORS WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, SOLENOID AND CONTACTORS AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. 120V AC SUPPLY FROM CONTROLLER TO CONTACTORS. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

SEQUENCE OF OPERATION:

1. KEYED AUTHORITY REQUIRED TO MAKE UTILITY SELECTION AND RE-SET PANEL AFTER AN ALARM. KEY IS NOT REQUIRED TO REMAIN IN THE PANEL AFTER THE INITIAL SELECTION HAS BEEN MADE. UTILITY SELECTION IS PROHIBITED AFTER INITIAL 10SECS WITHOUT THE AUTHORITY KEY.
2. GAS SERVICE ONLY SUPPLIED AFTER A 30SEC PRESSURE DROP TEST ENSURES ALL GAS TURRETS ARE CLOSED AND ALL GAS PIPE IS SOUND AND IN TACK.
3. ACTIVATION OF PANIC BUTTON, REMOTE PANIC BUTTON, FIRE ALARM INPUT, GAS DETECTOR AND TIME-OUT FUNCTION SHALL DEACTIVATE ALL UTILITIES.
4. LOW GAS PRESSURE BELOW 4.8INCH/WC THAT EXISTS FOR >10SEC SHALL CAUSE THE GAS TO BE SHUT DOWN.

GAS WITH MANUAL EXHAUST FAN AND IN PANIC

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM
N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO OPEN GAS SOLENOID. CONTROL PANEL TO PERFORM PRESSURE DROP TEST BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS. PANIC ALARM OR GAS DETECTION WILL INITIATE PURGE EXHAUST FAN.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, RELAYS AND SOLENOID WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, RELAYS AND SOLENOID AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

DETAIL – SCIENCE CLASSROOM GAS CONTROL DIAGRAM
N.T.S.

NOTES:

1. TYPICAL SEQUENCE OF OPERATION. KEY LOCK AUTHORITY REQUIRED TO OPEN GAS SOLENOID. CONTROL PANEL TO PERFORM PRESSURE DROP TEST BEFORE ALLOWING GAS INTO CLASSROOM. IN EMERGENCY PANIC BUTTON WILL CLOSE ALL CIRCUITS. PANIC ALARM OR GAS DETECTION WILL INITIATE PURGE EXHAUST FAN.
2. VERIFY LOCATIONS OF CONTROLLER, REMOTE SHUT-OFF BUTTONS, RELAYS AND SOLENOID WITH DRAWINGS AND OWNER IN FIELD.
3. UNLESS NOTED OTHERWISE, P.C. TO SUPPLY CONTROLLER, REMOTE SHUT-OFF BUTTONS, GAS DETECTOR, RELAYS AND SOLENOID AS A WHOLE SYSTEM. P.C. TO COORORDINATE WITH E.C.
4. UNLESS NOTED OTHERWISE, WIRING, ELECTRICAL CONNECTIONS AND TESTING BY DIV. 26. COORDINATE GAS SOLENOID VALVE LOCATION AND FIELD WIRING WITH DIV. 22.
5. PRESSURE TRANSDUCER SUPPLIED WITH CONTROL PANEL, INSTALLED IN DOWNSTREAM PORT OF GAS SOLENOID SUPPLIED BY P.C. SEE MANUFACTURER’S DETAILS.
6. 120V AC SUPPLY TO CONTROLLER. 120V AC SUPPLY FROM CONTROLLER TO SOLENOID. LOW VOLTAGE SUPPLY SIGNAL TO PRESSURE TRANSDUCER. 12V DC SUPPLY FROM CONTROLLER TO GAS DETECTOR.
7. FIRE ALARM CONTROL MODULE OUTPUT INTERRUPTS EMERGENCY SHUTOFF (EPO) BUTTON CIRCUIT.
8. BASIS OF DESIGN AGS MERLIN 1000S+ UTILITY CONTROL SYSTEM. CONTACT AMERICAN GAS SAFETY FOR INFORMATION. WWW.AMERICANGASSAFETY.COM TEL: 727-608-4375

SEQUENCE OF OPERATION:

1. KEYED AUTHORITY REQUIRED TO MAKE UTILITY SELECTION AND RE-SET PANEL AFTER AN ALARM. KEY IS NOT REQUIRED TO REMAIN IN THE PANEL AFTER THE INITIAL SELECTION HAS BEEN MADE. UTILITY SELECTION IS PROHIBITED AFTER INITIAL 10SECS WITHOUT THE AUTHORITY KEY.
2. GAS SERVICE ONLY SUPPLIED AFTER A 30SEC PRESSURE DROP TEST ENSURES ALL GAS TURRETS ARE CLOSED AND ALL GAS PIPE IS SOUND AND IN TACK.
3. ACTIVATION OF PANIC BUTTON, REMOTE PANIC BUTTON, FIRE ALARM INPUT, GAS DETECTOR AND TIME-OUT FUNCTION SHALL DEACTIVATE ALL UTILITIES.
4. MANUAL FAN ON / OFF VIA AGS FS1 FAN CONTROL.
5. ALARM CONDITION SHALL OVERRIDE FS1 CONTROL AND TURN ON FAN FOR ALLOTTED PURGE TIME ADJUSTABLE VIA INTERNAL DIP SWITCHES.
6. LOW GAS PRESSURE BELOW 4.8INCH/WC THAT EXISTS FOR >10SEC SHALL CAUSE THE GAS TO BE SHUT DOWN.

INSTALL EXAMPLE

References

• American Gas Safety | Gas Detection | Control Systems | Solenoid Valves

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