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SENSOR POISONS 
The gas-sensing tip in the detector is designed with extreme sensitivity to the environment. As a result, the 
sensing function of the tip may deteriorate if it is exposed to 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. 
LIMITED WARRANTY 
The Macurco HD-11 Combustible Gas Detector is warranted to be free from defective material and 

workmanship for a period of two (2) years from the date of manufacture (stamped on the unit). If any 
component becomes defective during the warranty period, it will be replaced or repaired free of charge, if the 

unit is returned in accordance with the instructions below. This warranty does not apply to units that have been 
altered or had repair attempted, or that have been subjected to abuse, accidental or otherwise. The above 

warranty is in lieu of all other express warranties, obligations or liabilities. THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO A PERIOD OF TWO 

(2) YEARS. Macurco shall not be liable for any incidental or consequential damages for breach of this or any 
other warranty express or implied arising out of or related to the use of said equipment. Manufacturer or its 

agent’s liability shall be limited to replacement or repair as set forth above. Buyer’s sole and exclusive remedies 
are return of the goods and repayment of the price, or repair and replacement of non-conforming goods or 

parts. 
 

Manufactured by Aerionics, Inc.  
Round Rock, Texas 

Email: [email protected] 
Phone: 1-877-367-7891 

Rev 5.14.2012 

© Aerionics 2012. All rights reserved.  
Macurco is a trademark of Aerionics, Inc. 

 

 

 

Summary of Contents for HD-11

Page 1: ...Macurco HD 11 Hydrogen Gas Detector User Instructions Important Keep these User Instructions for reference ...

Page 2: ... USE INSTRUCTIONS AND LIMITATIONS 4 Use For 4 Do Not Use For 4 General Description 4 Features 4 Specifications 5 INSTALLATION AND OPERATION INSTRUCTIONS 5 Location 5 Installation 5 Power Up 6 Operation 6 Alarms 7 Trouble Indicator 7 MAINTENANCE 7 Testing 7 Cleaning 7 Sensor Poisons 8 WARRANTY 8 ...

Page 3: ...uctions or call Macurco Technical Service The HD 11 is not designed to measure compliance with Occupational Safety and Health Administration OSHA commercial or industrial standards When the unit is powered up it performs a self test during which the green LED light will blink for a period of one and one half to two minutes Afterward the green LED light will turn on continuously to indicate the uni...

Page 4: ...ount the HD 11 where the normal ambient temperature is below 40ºF 4 4ºC or above 120ºF 49ºC The HD 11 mounts on a 4x4 or 2 gang electrical box supplied by the contractor DO NOT install the HD 11 inside another enclosure or protective cover unless it has good air flow through it The HD 11 is NOT designed to detect smoke fire or carbon monoxide Do NOT mount the HD 11 in a corner HD 11 may not functi...

Page 5: ... locations of family living units and office workspaces The HD 11 is not designed to measure compliance with Occupational Safety and Health Administration OSHA commercial or industrial standards INSTALLATION 1 Mount the HD 11 high on a wall about one foot down from the ceiling Use the same spacing as for smoke detectors 30 foot centers 900 square feet per detector 2 The three part plastic case all...

Page 6: ...nhibited The green LED light will turn on and off during the delay period The green light will turn on continuously ARMED afterwards to indicate the unit is in normal operation OPERATION 1 Once the HD 11 is operational ARMED the green light will be on continuously If gas is detected the red LED ALARM turns on and the SPDT alarm relay activates to indicate the alarm condition 2 In the configuration...

Page 7: ...on and off and the trouble relay opening Failure of power supplies in the HD 11 or a lack of power to the detector will result in the trouble relay opening The most common expected trouble would be a break in the wiring between the panel and the HD 11 When a trouble signal occurs call the alarm panel installer for assistance WARNING Do not cover or obstruct visual alarm LED Doing so may adversely ...

Page 8: ... does not apply to units that have been altered or had repair attempted or that have been subjected to abuse accidental or otherwise The above warranty is in lieu of all other express warranties obligations or liabilities THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO A PERIOD OF TWO 2 YEARS Macurco shall not be liable for any incidental or consequentia...

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