Portable Ventilation System
Contents
1. Bit HIGH CONFINED EFFECTIVE SPACE SIZE CUBIC FEET BLOWER CAPACITY CFM Air quality of the space should be tested prior to ventilation Ventilate the confined space for the minimum times as determine in the above chart and then retest the air If toxic combustible gases or low oxygen is encountered increase the purge times by 50 If 2 blowers are used add the two capacities then proceed with the how to use chart above Effective blower capacity is measured with one or two 90 degree bends in an 8 diameter 25ft blower hose MB WN eR2. Portable Ventilation BINA TRAILS SCHOOL DIVISION SAFE WORK PROCEDURE Pdr chal eae A Community of Learners Committed to Excellence Page 1 of 4 Lorie Carriere All Buildi PTSD a Brent Vandenbosch Brent Vandenbosch April 17 2014 Safety glasses or face shield must be worn at all Long and loose hair must be tied back and covered times in work areas Disposable P100 Respirator or a mask respirator with HEPA Filters wipes sanitizing pads may be required Close fitting protective clothing must be worn Remove strings hanging from pullovers sweaters Safety footwear must be worn at all times in the work area Hearing protection must be worn when using this machine Multi Gas detector MGD is required to be with you at all times while working in a crawl space or confined space UNIVERSAL Standard Saddle Vent es Setup Procedure STEP 1 Install 6 fr duct on blower STEP 2 Install 90 elbow on top of Saddle Vent STEP 3 Install duct on bottom of Saddle Vent STEP 4 Install universal mount on Saddle Vent set in place with manhole lid STEP 5 Install duct from blower to 90 elbow STEP 6 Turn on blower Inline blower ducting and storage Canister fan and ducting canisters for ducting v Electrical shock Equipment orientation v Confined space entry hazards Never leave machine running unattended v Hazardous atmosphere Use tools only for their intended purpose Read and understand general saf
3. ety procedures in the user manual Portable Ventilation PEMBINA TRAILS SCHOOL DIVISION Q A Community of Learners Committed to Excellence SAFE WORK PROCE DU RE System Crawlspaces Page 2 of 4 Select a blower based on environmental conditions and the size of the confined space UNIVERSAL MOUNT Standard Saddle Vent Setup Procedure STEP 1 Install 6 fr duct on blower STEP 2 Install 90 elbow on top of Saddle Vent Run duct to STEP 3 Install duct on bottom of Saddle Vent 12 from STEP 4 Install universal mount on Saddle Vent and bottom of set in place with manhole lid confined STEP 5 Install duct from blower to 90 elbow space STEP 6 Turn on blower g CTL M PRE OPERATIONAL SAFETY CHECKS Inspect required personal protective equipment and replace if required Ensure no slip trip hazards are present in workspaces and walkways Faulty equipment must not be used Immediately report suspect machinery Locate and ensure you are familiar with the operation of the ON OFF starter Do not leave this equipment running while unattended Do not use equipment if it is damaged Immediately report any damages to your supervisor a a ee a ASSEMBLY amp OPERATION 1 Inspect and don all personal protective equipment safety glasses face shield hearing protection safety footwear if entering a crawl space or confined space a multi gas detector MGD is required Remove all jewelry loose cl
4. ng and clean the equipment Coil the ducting back into their storage canisters and return all equipment to storage If an emergency situation occurs while conducting this task or there is an equipment malfunction evacuate the area and notify your supervisor REPORT ANY HAZARDOUS SITUATION TO YOUR SUPERVISOR IMMEDIATELY WS amp H Act W210 Section 4 5 7 7 1 Mb Regulations 217 2006 Part 15 Confined Spaces Sections 15 1 15 14 Part 16 Machines Tools amp Robots Sections 16 1 16 13 Guideline for Confined Space Entry Operators Manual for the Saddle Vent Ventilation System and Canister Fan PEMBINA TRAILS SCHOOL DIVISION SAFE WORK PROCEDURE Portable Ventilation A Community of Learners Committed to Excellence Syste m C raw I S paces Page 4 of 4 VENTILATION CALCULATIONS _ ESTIMATING APPROXIMATE PURGE TIMES HOW TO USE CHART PE 1 Select the proper size scale on the left SPACE SIZE High or low depending on the size of confined space Ss a 2 Place one end of a straight edge on the oe proper size scale at left CAPACITY ingi i lt 3 Place the other end of the straight edge CFM on the blower capacity scale at right 4 Read the required purge time from the diagonal scale that corresponds to the high or low volume scale selected 1400 ike 1708 TGG 10 Laat 702 Purge times are calculated to achieve seven 7 air exchanges S SOG in the confined space
5. othing and tie back hair 2 If you know the approximate size of the space to be ventilated calculate the ventilation time required to purge the space you will be working in See the estimator guide at the back of this document 3 Open the area to the space you will be setting up the equipment and check the atmosphere at the entrance to the space with the multi gas detector MGD 4 Set up the canister fan in an area where there is fresh uncontaminated air a minimum of 5 ft from the opening to the space Portable Ventilation PEMBINA TRAILS SCHOOL DIVISION Cm A Community of Learners Committed to Excellence SAFE WORK PROCE DU RE System Crawlspaces Page 3 of 4 Pull the ducting from the end of the canister fan and attach it to the 90 elbow Attach the elbow to the saddle vent and place the saddle vent into the opening of the space Attach a 25 section of duct to the other end of the saddle vent Place the duct as far as possible into the space If more ducting is required attach the inline fan to the far end of the 25 duct section Attach a second 25 duct section to the other end of the inline fan Stretch the ducting out as far as it can reach Turn the power to both fans ON and allow the fans to ventilate the space Ventilate according to the calculation in step 2 prior to starting work Continue to ventilate the space while work is ongoing 10 Once the work has been completed turn off the fans remove the ducti
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