www.bullard.com DC50 Series Dual-Cool Climate Control Tube and
Contents
1. aa Sullard DC50 Series Dual Cool Climate Control Tube and DC70 Vest Instruction Sheet For use with Airline Respirators The DC50 Dual Cool tube is approved by NIOSH to supply a continuous flow of cool air to certain Bullard supplied air respirators Please consult the NIOSH approval matrix in your respirator user manual to verify that the DC50 is NIOSH approved for your specific configuration All Bullard parts must be present and properly assembled to constitute a NIOSH approved respirator Air Quality Requirements Grade D breathing air must be supplied to the point of attachment of the Bullard air supply hose where the air supply hose connects to the fitting Always use an inlet filter on your air source and monitors and alarms as necessary to assure clean breathable Grade D air Supplied breathing air must at least meet or exceed the requirements for Type 1l gaseous air as described in the Compressed Gas Association Commodity Specification G 7 1 Grade D or higher quality and specified by Federal Law 42CFR Part 84 Subpart J 84 141 b and 29 CFR 1910 134 i 1 il The requirements for Grade D breathable air include OW VOC MM G 19 5 23 596 Hydrocarbons in mg m Of gaS eeeee 5 mg m max Carbon monoxide ccccceecesseeeseeeseeeseeeeseeess 10 ppm max Carbon dioxide asesssossosseeeceeeeneeeneneereennne 1 000 ppm max UCI aeae E No pronounced odor No toxic contaminants at levels that make air unsafe to2. breathe Specific measurement of odor in gaseous air is impractical Air normally may have a slight odor The presence of a pronounced odor should render the air unsatisfactory Contact the Compressed Gas Association 1235 Jefferson David Highway Arlington VA 22202 or www cganet com for complete details on Commodity Specification G 7 1 WARNING Before using this product read and follow all directions and warnings including those in the respirator instruction manual The respirators air source must supply clean breathable air Grade D or better at all times The respirator does not purify air or filter out contaminants Connecting the respirator to a line supplying Nitrogen or other harmful gases could cause death or serious injury The DC50 Dual Cool tube cannot be used with a low pressure air source such as an ambient air pump Failure to follow these instructions could result in death or serious injury For technical assistance contact Bullard Customer Service at 877 BULLARD 285 5273 aa Sullard DC50 Series Dual Cool Climate Control Tube and DC70 Vest Instruction Sheet Air Pressure Breathing air pressure must be continually monitored at the point of attachment while operating the respirator A reliable air pressure gauge must be present to monitor the pressure during respirator operation A WARNING Failure to supply the minimum required pressure at the point of attachment for your hose lengt
3. buted to the vest and the breathing zone The right hand knob controls the air temperature to the respirator the left hand knob controls the air temperature to the cooling vest Figure 3 2 When finished working leave the work area wearing the respirator With the air still flowing remove the hood and then disconnect the air supply hose using the quick disconnect coupler attached to the Dual Cool Cleaning Machine wash the vest in warm water using a gentle cycle Use a mild laundry detergent Air dry only After cleaning carefully inspect the vest for any signs of damage If any damage is detected remove the vest from service BUILD YOUR ulard www BuildYourBullard com Americas Europe Asia Pacific Bullard Bullard GmbH Bullard Asia Pacific Pte Ltd cee 1898 Safety Way Lilienthalstrasse 12 LHK Building ISO 9001 Cynthiana KY 41031 9303 USA 53424 Remagen Germany 701 Sims Drive 04 03 certified Toll free within USA 877 BULLARD 285 5273 Tel 49 2642 999980 Singapore 387383 2014 Bullard All rights reserved Tel 1 859 234 6616 Fax 49 2642 9999829 Tel 65 6745 0556 Valeo iseatedictereditraaemareotvelen tion Fax 1 859 234 8987 Fax 65 6745 5176 6088000327F 0414
4. e Assembly The heat shield is designed to work with the standard nylon belt part 4612 supplied with the climate control device l Lace the belt supplied with your climate control device through both the heat shield slots and the climate control belt bracket slots 2 Use plastic zip ties 2 inlcuded to secure the climate control to the heat shield Figure 3 DC50 Series Dual Cool Climate Control Tube and DC70 Vest Instruction Sheet Donning the Dual Cool Tube and Cooling Vest 1l Screw the hose connector that is on the end of the breathing tube to threaded connector on Dual Cool Lace the belt through the slots in the belt bracket Figure 3 Air supply hose Quick disconnect coupler Zip ties Quick disconnect nipple Quick disconnect coupler Quick disconnect nipple Left hand Cooling vest temperature Connector hose E control knob for P respirator a Threaded connector Left hand p _ temperature e control knob for Dual Cool vest Belt Figure 3 Breathing tube 2 Don the belt belt bracket and Dual Cool Adjust belt comfortably but loosely around your waist insuring that the Dual Cool assembly is on your right hand side 3 Don the vest Use the Velcro closure strips to adjust loosely for size NOTE The vest should mount over the belt with the Dual Cool unit positioned in the V of the vest found on the right hand side Figure 1 4 Snap the quick di
5. h and type will reduce airflow and could result in death or serious injury Make certain that your breathing air compressor has sufficient capacity to deliver a minimum of 30 cfm per respirator wearer at all times Because Dual Cool has two cool tubes it requires a higher than normal volume of air The Breathing Air Pressure Table in your respirator user manual defines the air pressure ranges necessary to provide the respirator with a volume of air that falls within the required range of 6 15 cubic feet per minute cfm or 170 425 liters per minute lpm See 42 CFR Part 84 Subpart J 84 150 Air Supply Hose To maintain your Bullard respirator s NIOSH approval use only approved Bullard V10 Series hose s in lengths of 50 to 300 feet or Bullard V5 Series hose in lengths of 25 to 50 feet Bullard V11 hose to hose adapters MUST be used to connect V10 hose lengths together Secure connection s until wrench tight and leak free A WARNING Do not use a quick disconnect fitting to connect a V10 hose to the air source This would restrict airflow and is not approved in this configuration Use of any other air supply hose voids NIOSH approval of the entire respirator assembly and could reduce the airflow to the respirator possibly resulting in death or serious injury to the respirator wearer Failure to observe these warnings could result in death or serious injury Compressed air must be dry enough to prevent ice buildup in the c
6. old airstream Ice could reduce airflow into the respirator hood WARNING The DC50 Dual Cool climate control system is not recommended for cooling the air supply when the air temperature is less than 70 F Because the DC50 Dual Cool may cool the incoming air by more than 30 F it is possible for ice to form in the breathing tube and reduce the airflow Failure to observe these warnings could result in death or serious injury Ordering Information CATALOG NUMBER DESCRIPTION DC5040 1 4 Industrial Interchange Hansen compatible quick disconnect nipple adjustable temperature control CH60 connector hose heat shield and belt DC70ML Medium Large Cooling Vest DC70XLXXL X Large XX Large Cooling Vest DC705X 5X Large Cooling Vest CH60 Connector Hose 4612 Nylon Belt HSDC Heat Shield aa Sullard Assembly and Use Assembly must be conducted in an uncontaminated atmosphere Assembling the Cooling Vest l Insert the muffler end of the cooling vest connector hose well into the air entry sleeve of the vest Figure 1 Figure 1 Vest V or notch 2 Install the small nylon clamp over the air entry sleeve and cooling vest connector hose Engage the clamp locks and squeeze until tight Figure 2 To remove To tighten To tighten Figure 2 Head Shield Assembly Instructions The HSDC climate control heat shield is designed to work with the Bullard DC50 Dual Cool climate control devic
7. sconnect nipple found on the end of the cooling vest connector hose into the quick disconnect coupler on the Dual Cool Figure 3 5 Don the respirator by following the directions in your respirator instruction manual If you do not have instructions contact Bullard Customer Service at the address or phone number given below 6 With the approved Bullard air supply hose connected to the breathing air source and with air flowing into the hose connect the quick disconnect coupler on the air supply hose to the quick disconnect nipple on the Dual Cool Figure 3 7 Adjust the air pressure at the point of attachment to within the approved pressure range found in the respirator user manual Figure 4 Pressure gauge Point of attachment l Grade D Air supply hose breathable air source Figure 4 DC50 Series Dual Cool Climate Control Tube and DC70 Vest Instruction Sheet G aSullard Operating the Dual Cool Tube 1 To obtain cooler air turn the air temperature control knobs counterclockwise Figure 3 Maximum cooling is obtained when knobs are open completely and when there is maximum airflow out of the Dual Cool tube s exhaust ports To obtain air that is closer to ambient temperature turn air temperature control knobs clockwise If knobs are closed completely your respirator will receive air that is essentially at ambient temperature NOTE There are separate controls to adjust the temperature of the air that is distri
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