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DocuSign Envelope ID: E9612703-F25B-492D-9C8C-EC3F9728ECE6 <br /> the initial adjustments to produce optimum system operation and maintain comfort conditions. The <br /> peak design cooling and peak design heating conditions must be determined on these days for the <br /> seasons not reported in the start-up. Submit a report of this inspection,including problems noted and <br /> adjustments made, to the Engineer. The balancing agency shall notify the Engineer in advance of <br /> this inspection. <br /> AIR SYS'T'EM PROCEDURES <br /> Test and adjust fan speeds to achieve design CFM and SP requirements in all modes of operation. If <br /> a fan pulley cannot be adjusted to suit the CFM and SP required, it shall be changed. Lubricate all <br /> motor and pulley bearings. Check all belts for proper tension and alignment. Check all motors and <br /> equipment for proper rotation. <br /> Measure and record motor speed,current,and voltage,nameplate data,sheave sizes and belt sizes in <br /> all modes of operation. <br /> Perform a Pitot-tube traverse of main supply,and return ducts to obtain total CFM in each mode of <br /> operation (e.g., heating, cooling, economizer, etc.). If a Pitot-tube traverse is not practical, the <br /> summation of the outlets or inlets may be used after consultation with the Engineer. Explanation <br /> why traverse was not used is to be included on the appropriate data sheet. <br /> Test and adjust system minimum outside air by Pitot-tube traverse in each mode of operation. If a <br /> Pitot-tube traverse is not practical,the percentage of outside air may be determined by calculations <br /> from the return air, outside air, and mixed air temperatures. Make allowances for heat of <br /> compression and motor heat where applicable. <br /> Test and record system static pressures,including suction and discharge static pressure of each fan. <br /> Take wet-bulb and dry-bulb air temperatures on the entering and leaving side of each cooling coil. <br /> Dry-bulb temperature shall be taken on the entering and leaving side of each heating coil. <br /> Test and balance each diffuser, grille, and register to within 10 percent of design requirements. All <br /> adjustments are to be made at terminal boxes, trunk ducts or run-out ducts, not at volume control <br /> dampers in outlet devices. Adjust all diffusers,grilles,and registers to minimize drafts in all areas. <br /> Adjust heat recovery and exhaust systems and relief dampers to exhaust air quantities specified. <br /> Record fan nameplate data,and actual RPM,CFM,SP,and amps at each speed of operation. Verify <br /> operation of motor- or gravity-operated backdraft dampers. <br /> TEST AND BALANCE REPORT <br /> The test-and-balance report shall be complete with logs, data, and records as required herein. All <br /> logs,data,and records shall be typed and bound. The report shall be certified accurate and complete <br /> 15H-34 <br />