987158-UIM-B-10134 Johnson Controls Unitary ProductsINSPECTIONAs soon as a unit is received, it should be inspected for possible dam-age during transit. If damage is evident, the extent of the damageshould be noted on the carrier’s freight bill. A separate request forinspection by the carrier’s agent should be made in writing. Also, beforeinstallation, the unit should be checked for screws or bolts which mayhave loosened in transit. There are no shipping or spacer bracketswhich need to be removed from the interior of this unit.FURNACE LOCATION AND CLEARANCESThe furnace shall be located using the following guidelines:1. Where a minimum amount of air intake/vent piping and elbows willbe required.2. As centralized with the air distribution as possible.3. Where adequate combustion air will be available.4. Where it will not interfere with proper air circulation in the confinedspace.Installation in freezing temperatures:1. Furnace shall be installed in an area where ventilation facilities pro-vide for safe limits of ambient temperature under normal operatingconditions.2. Do not allow return air temperature to be below 55º F (13° C) forextended periods. To do so may cause condensation to occur in themain heat exchanger, leading to premature heat exchanger failure.Clearances for access/service:Ample clearances should be provided to permit easy access to the unit.The following minimum clearances are recommended:1. Twenty-four (24) inches (61 cm) between the front of the furnace andan adjacent wall or another appliance, when access is required forservicing and cleaning.2. Eighteen (18) inches (46 cm) at the side where access is requiredfor passage to the front when servicing or for inspection or replace-ment of flue/vent connections.In all cases, accessibility clearances shall take precedence over clear-ances for combustible materials where accessibility clearances aregreater.Installation in a residential garage:A gas-fired furnace for installation in a residential garage must beinstalled so the burner(s) and the ignition source are located not lessthan 18 inches (46 cm) above the floor, and the furnace must be locatedor protected to avoid physical damage by vehicles.FOR FURNACES INSTALLED IN THE COMMON-WEALTH OF MASSACHUSETTS ONLYFor all side wall horizontally vented gas fueled equipment installed inevery dwelling, building or structure used in whole or in part for resi-dential purposes, including those owned or operated by the Com-monwealth and where the side wall exhaust vent termination is lessthan seven (7) feet above finished grade in the area of the venting,including but not limited to decks and porches, the following require-ments shall be satisfied:1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At thetime of installation of the side wall horizontal vented gas fueledequipment, the installing plumber or gasfitter shall observe that ahard wired carbon monoxide detector with an alarm and batteryback-up is installed on the floor level where the gas equipment isto be installed. In addition, the installing plumber or gasfitter shallobserve that a battery operated or hard wired carbon monoxidedetector with an alarm is installed on each additional level of thedwelling, building or structure served by the side wall horizontalvented gas fueled equipment. It shall be the responsibility of theproperty owner to secure the services of qualified licensed profes-sionals for the installation of hard wired carbon monoxide detec-torsa. In the event that the side wall horizontally vented gas fueledequipment is installed in a crawl space or an attic, the hardwired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.b. In the event that the requirements of this subdivision can notbe met at the time of completion of installation, the owner shallhave a period of thirty (30) days to comply with the aboverequirements; provided, however, that during said thirty (30)day period, a battery operated carbon monoxide detector withan alarm shall be installed.2. APPROVED CARBON MONOXIDE DETECTORS. Each carbonmonoxide detector as required in accordance with the above pro-visions shall comply with NFPA 720 and be ANSI/UL 2034 listedand IAS certified.3. SIGNAGE. A metal or plastic identification plate shall be perma-nently mounted to the exterior of the building at a minimum heightof eight (8) feet above grade directly in line with the exhaust ventterminal for the horizontally vented gas fueled heating applianceor equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEPCLEAR OF ALL OBSTRUCTIONS”.4. INSPECTION. The state or local gas inspector of the side wallhorizontally vented gas fueled equipment shall not approve theinstallation unless, upon inspection, the inspector observes car-bon monoxide detectors and signage installed in accordance withthe provisions of 248 CMR 5.08(2)(a)1 through 4.Table 1: Unit Clearances to Combustibles (All Dimensions in Inches, and All Surfaces Identified with the Unit in an Upflow Configuration)Application Top Front Rear Left Side Right Side Flue Floor/Bottom Closet Alcove Attic LineContactIn. (cm) In. (cm) In. (cm) In. (cm) In. (cm) In. (cm)Upflow B-Vent 1 (2.5) 1 (2.5) 0 (0.0) 0 (0.0) 0 (0.0) 1 (2.5) Combustible Yes Yes Yes NoDownflow B-Vent 1 (2.5) 1 (2.5) 0 (0.0) 0 (0.0) 0 (0.0) 1 (2.5) 1 (25.4)11. Special floor base or air conditioning coil required for use on combustible floor.Yes Yes Yes NoHorizontal B-Vent 1 (2.5) 1 (2.5) 0 (0.0) 0 (0.0) 0 (0.0) 1 (2.5) Combustible No Yes Yes Yes22. Line contact only permitted between lines formed by the intersection of the rear panel and side panel (top in horizontal position) of the furnace jacket and buildingjoists, studs or framing.