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<br /> TFP342
<br /> Page 4 of 6
<br /> "FITTING SIDE" that an 8 in.or 10 in.adjustable wrench care and
<br /> TOWARDS SPRINKLER is to be used for wax-coated sprinklers.
<br /> FITTING With reference to Figure 1,the W Type Maintenance
<br /> 3 Sprinkler Wrench or the adjustable
<br /> wrench, as applicable, is to be applied TYCO Series ELO-231 B 11.2K Standard
<br /> to the wrench flats.
<br /> -- �\ Response,Standard Coverage Upright
<br /> l When installing wax-coated sprinklers and Pendent Sprinklers must be main-
<br /> s / with the adjustable wrench, additional tained and serviced in accordance with
<br /> WRENCH care needs to be exercised to prevent this section.
<br /> / RECESS damage to the wax coating on the
<br /> (END"A") sprinkler wrench flats or frame arms Before closing a fire protection system
<br /> and, consequently, exposure of bare control valve for maintenance work on
<br /> FIGURE 2 metal to the corrosive environment. the fire protection system that it con-
<br /> FIGURE 3 The jaws of the wrench should be trots, permission to shut down the
<br /> SPRINKLER WRENCH opened sufficiently wide to pass over affected fire protection system must
<br /> the wrench flats without damaging the be obtained from the proper authorities
<br /> wax coating.Before wrench-tightening and all personnel who may be affected
<br /> Installation the sprinkler,the jaws of the wrench are by this action must be notified.
<br /> TYCO Series ELO-231 B 11.2K Stan- to be adjusted to just contact the sprin- Sprinklers that are found to be leaking
<br /> dard Response, Standard Coverage kler wrench flats. After wrench-tight- or exhibiting visible signs of corrosion
<br /> Upright and Pendent Sprinklers must ening the sprinkler, loosen the wrench must be replaced.
<br /> be installed in accordance with this laws before removing the wrench. Automatic sprinklers must never be
<br /> section. After installation, the sprinkler painted, plated, coated or other-
<br /> , A leak-tight 3/4 in. NPT sprinkler joint wrench flats and frame arms must wise altered after leaving the factory.
<br /> should be obtained b applying min- be inspected and the wax coating Modified sprinklers must be replaced.
<br /> y a retouched (repaired) whenever the Sprinklers that have been exposed to
<br /> imum-to-maximum torque of 10 to 20 coating has been damaged and bare corrosive products of combustion, but
<br /> lb-ft (13,4 to 26,8 N•m). A leak-tight metal is exposed.The wax coating on have not operated,should be replaced
<br /> 1/2 in. NPT sprinkler joint should be the wrench flats can be retouched by if they cannot be completely cleaned
<br /> r obtained by applying a minimum-to- gently applying a heated 1/8 in. diam- by wiping the sprinkler with a cloth or
<br /> maximum torque of 7 to 14 lb-ft (9,5 eter steel rod to the areas of wax that by brushing it with a soft bristle brush.
<br /> to 19,0 N•m). Higher levels of torque have been damaged, to smooth it
<br /> f can distort the sprinkler inlet with con- back over areas where bare metal is Care must be exercised to avoid
<br /> sequent leakage or impairment of the exposed. damage to the sprinklers before,
<br /> sprinkler. p during, and after installation. Sprin-
<br /> Notes: Do not install any bulb type Notes: Only retouching of the wax klers damaged by dropping, striking,
<br /> sprinkler if the bulb is cracked there coating applied to the wrench flats wrench twist/slippage,or the like,must
<br /> is a loss of liquid from the bulb. With and frame arms is permitted, and be replaced. Also, replace any sprin-
<br /> the sprinkler held horizontally, a small the retouching is to be performed kler that has a cracked bulb or that has
<br /> air bubble should be present. The only at the time of the initial sprinkler lost liquid from its bulb. For additional
<br /> diameter of the air bubble is approxi- installation. information,refer to Installation section.
<br /> mately 1116 in. (1,6 mm) for the 155°F The steel rod should be heated only Frequent visual inspections are rec-
<br /> (68°C) to 3132 in. (2,4 mm) for the to the point at which it can begin to ommended to be initially performed
<br /> 286°F(141°C)temperature ratings. melt the wax,and appropriate precau- for corrosion resistant sprinklers, after
<br /> Do not attempt to make up for insuf- tions need to be taken, when handling the installation has been completed,to
<br /> ficient adjustment in the escutcheon the heated rod, in order to prevent the verify the long term potential integrity
<br /> plate by under- or over-tightening the installer from being burned. of the sprinkler coatings. Thereafter,
<br /> sprinkler. Re-adjust the position of the If attempts to retouch the wax coating annual inspections per NFPA 25 should
<br /> sprinkler fitting to suit. with complete coverage are unsuc- suffice; however, instead of inspecting
<br /> -1 cessful,additional wax can be ordered from the floor level,a random sampling
<br /> ` The Series ELO-231B Upright and of close-up visual inspections should
<br /> Pendent Sprinklers must be installed o the form of a wax stick (the end be made,so as to better determine the
<br /> in accordance with the following of which l colcolor-coded
<br /> wax Only the exact sprinkler condition and the long
<br /> instructions. correct color-coded wax is to be term integrity of the corrosion resistant
<br /> used, and retouching of wrench flats coating, as it may be affected by the
<br /> Note: Pendent sprinklers are to be and frame arms is only permitted at corrosive conditions present.
<br /> installed in the pendent position; the time of initial sprinkler installation.
<br /> upright sprinklers are to be installed in With the steel rod heated as previ- The owner is responsible for the
<br /> the upright position. ously described, touch the rod to the inspection,testing,and maintenance of
<br /> 1 Step 1. With pipe thread sealant area requiring additional wax with the their fire protection system and devices
<br /> rod angled downward, and then touch in compliance with this document, as
<br /> i_J applied to the pipe threads, hand- the wax stick to the rod approximately well as with the applicable standards
<br /> tighten the sprinkler into the sprinkler 1/2 in. away from the area requiring of the National Fire Protection Associ-
<br /> fitting. retouching. The wax will melt and run ation, such as NFPA 25, in addition to
<br /> 'i Step 2. Tighten the sprinkler into the down onto the sprinkler. the standards of any other authorities
<br /> sprinkler fitting using onlythe W Type 3 having jurisdiction.Contact the install-
<br /> Sprinkler Wrench(Ref.Figure 2),except ing contractor or product manufacturer
<br /> 1 '
<br /> with any questions.
<br /> f ,
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