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

Also see for 58UHV Series: Installation, start-up, and operating instructions User's information manual Installation, start-up, and operating instructions Installation, start-up, and operating instructions

Contents

Carrier 58UHV Installation, Start-up, And Operating Instructions Manual Manual pdf 9 page image

Since horizontal furnace crawlspace installation is very similar toattic, refer to Horizontal Furnace Attic Installation section. Theinstallation of a sheet metal shield in front of the louvered controlpanel is covered in Horizontal Furnace Attic Installation section.For a crawlspace installation, this same sheet metal shield must beinstalled above the louvered control panel. Extend sheet metalshield over furnace top far enough to cover gas pipe entry hole.Step 4—Leveling Legs (If Required For Upflow)When furnace is used with side inlet(s) and leveling legs arerequired, refer to Fig. 10 and install field-supplied, corrosion-resistant 5/16-in. machine bolts and nuts.NOTE: The length of the bolt should not exceed 1-1/2 in.1. Lay furnace on its back. Locate and drill 5/16-in. diameterhole in each bottom corner of furnace as shown in Fig. 10.2. Install nut on bolt and install bolt with nut in hole. (Install flatwasher if desired.)3. Install another nut on other side of furnace base. (Install flatwasher if desired.)4. Adjust outside nut to provide desired height and tighten insidenut to secure arrangement.Step 5—Gas PipingEmissions control devices located at the heat exchanger inletsMUST be removed for propane installations (Refer to gasconversion kit for instructions).Gas piping must be installed in accordance with national and localcodes. Refer to the NFGC. Canadian installations must be installedin accordance with NSCNGPIC and all authorities having juris-diction.The gas supply line should be a separate line running directly fromgas meter to furnace, if possible. Refer to Table 4 for recom-mended gas pipe size. Risers must be used to connect furnace togas meter.If a flexible connector is required or allowed by the authorityhaving jurisdiction, black iron pipe shall be installed at thefurnace gas control valve and extend a minimum of 2 in.outside the furnace casing. A failure to follow this warningcould result in fire, personal injury, or death.Use the proper length of pipes to avoid stress on the gascontrol manifold. A failure to follow this warning can causea gas leak resulting in a fire, explosion, personal injury, ordeath.Use a backup wrench at the furnace gas control whenconnecting the gas pipe to the furnace to avoid damaging gascontrols or manifold.Never purge a line into a combustion chamber. Never usematches, candles, flame, or other sources of ignition for thepurpose of checking leakage. Use a soap-and-water solutionto check for leakage. A failure to follow this warning cancause a fire, explosion, personal injury, or death.Install a sediment trap in the riser leading to the furnace. The trapcan be installed by connecting a tee to the riser leading from thefurnace. Connect a capped nipple into the lower end of the tee. Thecapped nipple should extend below the level of the gas controls.(See Fig. 11.)Apply joint compound (pipe dope) sparingly and only to the malethreads of each joint. The compound must be resistant to the actionof propane gas.Install an accessible manual shutoff valve upstream of the furnacegas controls and within 72 in. of the furnace. A 1/8-in. NPTplugged tapping is provided on the gas valve for test gageconnection. Installation of an additional 1/8-in. NPT pluggedtapping, accessible for test gage connection, installed immediatelyupstream of the gas supply connection to the furnace and down-stream of the manual shutoff valve, is not required. Place groundjoint union between the gas control manifold and the manualshutoff valve.Piping should be pressure tested in accordance with local andnational plumbing and gas codes BEFORE furnace has beenattached. If test pressure exceeds 0.5 psig (14-in. wc), gas supplypipe must be disconnected from furnace and capped beforeFig. 9—Horizontal Furnace Installation on BlocksA95235Fig. 10—Leveling Leg InstallationA890141 3⁄4″1 3⁄4″1 3⁄4″1 3⁄4″5⁄16″5⁄16″5⁄16″5⁄ 16″9