DeWalt DXH70CFAV Manual De Instrucciones página 18

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
• Do not use this heater for heating human living quarters.
• Use of direct-fired heaters in the construction environment can result in exposure to levels of CO, CO2, and NO2 considered to be hazardous to health and
potentially life threatening.
• Do not use in unventilated areas.
• Know the signs of CO and CO2 poisoning.
• Headaches, stinging eyes
• Dizziness, disorientation
• Difficulty breathing, feels of being suffocated
• Proper ventilation air exchange (OSHA 29 CFR 1926.57) to support combustion and maintain acceptable air quality shall be provided in accordance with
OSHA 29 CFR Part 1926.154, ANSI A10.10 Safety Requirements for Temporary and Portable Space Heating Devices and Equipment used in the Construc-
tion Industry or the Natural Gas and Propane Installation Codes CSA B149.1.
• Periodically monitor levels of CO, CO2 and NO2 existing at the construction site – at the minimum at the start of the shift and after 4 hours.
• Provide ventilation air exchange, either natural or mechanical, as required to maintain acceptable indoor air quality.
USA 8-Hr Time weighted average
(OSHA 29 CFR 1926.55 App A)
CO
CO
2
NO
2
(Short Term Exposure Limit = 15 minutes)
CO
CO
2
NO
2
• Ensure that the flow of combustion and ventilation air exchange cannot become obstructed.
• As the building 'tightens up' during the construction phases ventilation may need to be increased.
Air Quality Hazard
50 ppm
5000 ppm
USA – Ceiling Limit
5 ppm
WARNING
Canada 8-hr time weighted average
WorkSafe BC OHS Guidelines Part 5.1
and Ontario Workplaces Reg 833
5000 ppm
3 ppm (Reg 833)
Canada STEL (15 minutes Reg 833/1 hour WSBC) WorkSafe BC
OHS Guidelines Part 5.1 and Ontario Workplaces Reg 833
15000 ppm (WSBC)
30000 ppm (Reg 833)
1.0 ppm (WorkSafeBC)
5.0 ppm (Reg 833)
18
25 ppm
100 ppm