CONTROL MODULE INSTALLATION (continued)

TM 10-6665-297-13&P 2-4 CONTROL MODULE INSTALLATION (continued) the structural requirements of a selected configuration. Standard module configurations are usually installed in the following ways: 2-4.1 CD800P (one control- module in metal case with rectangular front panel surrounding module front panel): Install in customer's instrument panel by means of four #10 mounting screws through case front panel (Figure 2-3). Cutout in panel to receive module should be 3.30 x 6 inches. 2-4.2 CD800W, CD802W single module, fiberglass, wall mounting cabinet: Mount on wall at selected location by means of four 1/4" screws through holes in rear top and bottom flanges on cabinet. Connect conduits to conduit hubs on top or bottom of cabinet (Figure 2-4). For cabinets ordered without conduit hub holes, install snap-in standoffs as shown in Figure 2-5 for on-site installation of hubs at top or bottom of cabinet. Install grounding hub and groundwire. 2-4.3 CD800X single module, explosion-proof, wall mounting, cast aluminum housing: Mount on wall at selected location by means of four 3/8" screws or bolts through four mounting-lug slots on rear of housing. Connect 1-inch conduit to tapped conduit fitting hole in bottom of housing (Figure 2-6). 2-4.4 CD830W4/W8, CD832W4/W8 wall mounting, 14-gauge steel cabinet with 4 to 8 control units: Mount on wall at selected location by means of four 1/4" screws or, bolts through four slots in mounting flanges at rear top and bottom of cabinet. Connect 1-1/2 inch conduits as required to conduit fitting on top and bottom of cabinet. To prevent severe corrosion, or to reduce a hazardous area classification, wall- mounting cabinets can be positive-pressure ventilated. (Ref. NFPA No. 496-1967 Standard for purged enclosures for electrical equipment in hazardous locations.) Connect 1/4-inch air-purge pipe to air- purge fitting on top of cabinet if required (Figure 2-7). 2-4.5 CD830R6, CD832R6 19-inch rack adapter with 6 control units: Install rack adapter in standard rack cabinet, using four 1/4" screw through slots in left and right end panels (Figure 2-8). 2-4.6 CD83OP6, CD832P6 19-inch panel with 6 control units, for mounting in customer's panel: Cut 17-1/2 x 5-1/2-inch rectangular hole in panel and drill and tap four screw holes, located in accordance with dimensions shown in Figure 2-8. Insert instrument rack adapter and panel assembly through cutout in panel and fasten to front panel with four 1/4" screws. 2-4.7 CD830F, CD832F (up to 36 control units in Emcor No. FR126A instrument cabinet): Procedures for installation of the CD830F cabinet (with control units preinstalled) include placement of the cabinet where desired and the installation of conduits for power and detector cables. Conduits may enter the cabinet through either top or bottom of enclosure. Cabinet dimensions are shown in Figure 2-9. 23-9617 5/9/80 2-5