175231-YIM-A-0706Unitary Products Group 9RIGGING AND HANDLINGExercise care when moving the unit. Do not removeany packaging until the unit is near the place of installa-tion. Rig the unit by attaching chain or cable slings tothe round lifting holes provided in the base rails.Spreaders, whose length exceeds the largest dimen-sion across the unit, MUST BE USED. Refer toFigure 1.Units may also be moved or lifted with a forklift, fromthe side only, providing that an accessory skid is used.LENGTH OF FORKS MUST BE A MINIMUM OF 90".Refer to the Physical Data Table 7 for unit weights andto the Figures 2 or 12 for approximate center of gravity.CLEARANCESAll units require certain clearances for proper operationand service. Installer must make provisions for ade-quate combustion and ventilation air in accordancewith Section 5.3, Air for Combustion and Ventilation ofthe National Fuel Gas Code, ANSI Z223.1 (in U.S.A.)or Sections 7.2, 7.3 or 7.4 of Gas Installation CodesCSA-B149.1 (in Canada) and/or applicable provisionsof the local building codes. Refer to Figures 13, 14 and15 for the dimensions and clearances required for com-bustible construction, servicing, and proper unit opera-tion.Before lifting a unit, make sure that all panelsare in place and that its weight is distributedequally on all cables so it will lift evenly.FIGURE 1 - TYPICAL RIGGINGFIGURE 2 - CENTER OF GRAVITYAn adhesive backed label is provided over theoutside of the combustion air inlet opening toprevent moisture from entering the unit, whichcould cause damage to electrical components.Allow this closure label to remain in place untilthe combustion air hood is to be installed (referto Vent and Combustion Hood Figure 8).