Macurco GD-6 Specsheet

Macurco™ Combustible Gas Detector

GD-6

Detector, Controller and Transducer

Methane, Propane or Hydrogen Gas Detection

The GD-6 is a versatile, easy-to-use device that allows you to select between methane, propane or hydrogen
gas detection. Combustible gas detectors will respond to a wide range of hydrocarbons, including aerosol sprays,

cleaning solvents, paint thinner and other common volatile organic compounds. This low voltage detector provides

automatic feedback and fan or valve control that can help reduce combustible gas concentrations in parking
garages, battery rooms, maintenance facilities, and other locations that require combustible gas detection.

Selectable options include:

• Target Gas: Methane (NG), Propane (LP) or Hydrogen (H2)

• Output: Fan relay, Alarm relay and 4-20mA current loop

• Controls: Digital display (0-50% LEL), buzzer, fan delay, fan minimum runtime

Installation

• Mounts on a standard 4” x 4” electrical box

• 5 A SPDT fan relay controls valves, louvers or exhaust fans

• 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels

• 4-20mA current loop - compatible with the Macurco DVP-120 Control Panel

• Factory calibrated

Other Features

• Supervised system design: detector problem will cause the fan & alarm relay to activate

• Optional calibration kit allows the GD-6 to be field tested and calibrated

• ETL Listed to UL 61010-1, CAN/CSA C22.2 No 61010-1

Manufactured by Aerionics, Inc. Sioux Falls, SD – Phone: [phone] – Email: [e-mail] – www.macurco.com

GD-6 Specifications

• Power: 3 W (max) from 12 to 24 VAC or 12 to 48 VDC

• Current @ 24 VDC: 75 mA in alarm, 50 mA fan relay on and 23 mA stand by

• Shipping Weight: 1 pound (0.45 kg)

• Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 10.2 X 5.4 cm)

• Color: Dark gray

• Connections: plugs/terminals

• Mounting box: (not included) 4x4 electric

• Fan relay: 5 A, 240 VAC, pilot duty, SPDT, latching or non-latching

• Fan relay actuation: selectable at OFF, 3, 4, 5, 6, 7, 8, 9,
10 (default), 11, 12, 13, 14, 15, 16, 17, 18, 19, 20% LEL

• Fan Delay Settings of 0, 1, 3 (default), 5 and 10 minutes

• Fan Minimum Runtime settings are OFF (default), 3, 5, 10 or 15 minutes

• Alarm relay: 0.5A 120 V, 60 VA

• Alarm relay actuation: selectable N.O. default or N.C.

GD-6 Rear View

• Alarm relay settings: OFF, 5, 10, 15, 20 (default), 25% LEL

• Current Loop, 4-20 mA for 0-50% LEL

• Operating Environment: 0°F to 125° F (-18°C to 52°C),10 to 90% RH

Location

A GD-6 is usually located in areas where there is potential for gas leaks; where there are gas appliances, areas
through which gas pipes pass, where batteries are being stored or charged, etc. DO NOT mount the GD-6 in a
corner. DO NOT mount the GD-6 where the normal ambient temperature is below 0°F or exceeds 125°F (-18°C
to 52°C). If the target gas is lighter than air; natural gas (Methane) or Hydrogen (H2), mount the GD-6 high on a
wall or column about one foot down from the ceiling. If the target gas is heavier than air; propane (LP), mount the
GD-6 low on a wall or column one foot above the floor. Use the same spacing as for smoke detectors, 30 foot
centers, 900 square feet per detector.

TYPICAL CONNECTION OF GD-6

Alarm Control Panel

auxiliary functions

such as dialers.

N.O. or N.C.

initiating circuit

24V power

battery backed up

+

-

4-20 mA
Loop

N.C.

POWER

12 or 24 V

N.O.

GD-6

ALARM

RELAY

SPDT fan

RELAY

TYPICAL COVERAGE 900 SQUARE FEET

The Gas Valve mounts outside.

Gas line to

appliances

24V Gas

Valve

Gas

line

Made in the USA

N.O.

COM

A

B

AC or DC

No Polarity

Made in the U.S.A. with US and imported materials

© Aerionics 2014. All rights reserved.

Macurco is a trademark of Aerionics, Inc.

N.C.

from

Wall

tank