Carrier 58MVP Installation, Start-up, And Operating Instructions Manual

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Carrier 58MVP Installation, Start-up, And Operating Instructions Manual Manual pdf 18 page image

Step 4—Bottom Closure PanelThese furnaces are shipped with bottom closure panel installed inbottom return-air opening. This panel MUST be in place when sidereturn air is used.To remove bottom closure panel, perform following:1. Tilt or raise furnace and remove 2 screws holding front fillerpanel. (See Fig. 19.)2. Rotate front filler panel downward to release holding tabs.3. Remove bottom closure panel.4. Reinstall front filler panel and screws.Step 5—Gas PipingGas piping must be installed in accordance with national and localcodes. Refer to NFGC in the U.S. Canadian installations must bemade in accordance with NSCNGPIC and all authorities havingjurisdiction. Gas supply line should be a separate line runningdirectly from meter to furnace, if possible. Refer to Table 4 forrecommended gas pipe sizing. Risers must be used to connect tofurnace and to meter. Support all gas piping with appropriatestraps, hangers, etc. Use a minimum of 1 hanger every 6 ft. Jointcompound (pipe dope) should be applied sparingly and only tomale threads of joints. Pipe dope must be resistant to propane gas.FIRE OR EXPLOSION HAZARDFailure to follow this warning could result in fire, explosion,personal injury, or death.- Connect gas pipe to furnace using a backup wrench to avoiddamaging gas controls.- Gas valve shutoff switch MUST be facing forward or tiltedupward.- Never purge a gas line into a combustion chamber. Nevertest for gas leaks with an open flame. Use a commerciallyavailable soap solution made specifically for the detectionof leaks to check all connections.- Use proper length of pipe to avoid stress on gas controlmanifold.- If a flexible connector is required or allowed by authorityhaving jurisdiction, black iron pipe shall be installed atfurnace gas valve and extend a minimum of 2 in. outsidefurnace casing.- Do not use a connector which has previously been used toservice another appliance.Install a sediment trap in riser leading to furnace. Trap can beinstalled by connecting a tee to riser leading to furnace sostraight-through section of tee is vertical. Then connect a cappedFig. 17—Filter Installed for Side InletA93045FILTERRETAINERWASHABLEFILTERFig. 18—Bottom Filter ArrangementA00290WASHABLEFILTERFILTERSUPPORTFILTERRETAINER17 1⁄2 -IN. WIDECASINGS ONLY:INSTALL FIELD-SUPPLIEDFILTER FILLER STRIPUNDER FILTER.1″24 1 /2″3″21-IN. WIDECASINGS ONLY:SUPPORT RODS (3)EXTEND 1/4" ON EACHSIDE OF FILTER ANDREST ON CASING FLANGEFig. 19—Removing Bottom Closure PanelA93047BOTTOMCLOSUREPANELFRONT FILLERPANEL18