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Фрагмент инструкции
**IMPORTANT** ALL FACTORY PROVIDED LIFTING LUGS MUST BE USED WHEN LIFTING THE UNITS. FAILURE TO COMPLY WITH THIS SAFETY PRECAUTION COULD RESULT IN PROPERTY DAMAGE, SERIOUS INJURY OR DEATH. Models: HRE-20, 45, 55, & 90 INSTALLATION, OPERATION AND MAINTENANCE MANUAL Direct Evaporative Cooler (Outdoor/Supply Airstream) Indirect Evaporative Cooler (Exhaust/Scavenger Airstream) TABLE OF CONTENTS Storage . . . . . . . . . . . . . . . . . . . . . . . . . .2 Economizer Application/Operation . . .14 General . . . . . . . . . . . . . . . . . . . . . . . . . .2 Auto Dry Cycle . . . . . . . . . . . . . . . . . . .14 Installation . . . . . . . . . . . . . . . . . . . . . . .3 Start Up Checks . . . . . . . . . . . . . . . . . . 15 Lifting . . . . . . . . . . . . . . . . . . . . . . . . . .3 Fan wheel . . . . . . . . . . . . . . . . . . . . . .15 Unit Weights . . . . . . . . . . . . . . . . . . . . .3 Fan RPM . . . . . . . . . . . . . . . . . . . . . . .16 Recommended Roof Openings . . . . . . .3 Energy Recovery Wheel . . . . . . . . . . . 16 Roof Curb Mounting . . . . . . . . . . . . . . .4 Coils . . . . . . . . . . . . . . . . . . . . . . . . . .17 Duct Work Connections . . . . . . . . . . . .4 Routine Maintenance . . . . . . . . . . . 17-18 Weatherhoods . . . . . . . . . . . . . . . . . . .4 Belts . . . . . . . . . . . . . . . . . . . . . . . . . .17 Electrical . . . . . . . . . . . . . . . . . . . . . . . .5 Motors . . . . . . . . . . . . . . . . . . . . . . . . .17 Service Clearances . . . . . . . . . . . . . . . .6 Blower Wheel and Fasteners . . . . . . . .17 Evaporative Cooling Modules . . . . .7-10 Vibration . . . . . . . . . . . . . . . . . . . . . . .18 Evap Module Start-Up . . . . . . . . . . . . . .7 Filters . . . . . . . . . . . . . . . . . . . . . . . . .18 Water Control Options . . . . . . . . . . . . . .8 Coil Maintenance . . . . . . . . . . . . . . . . .19 Trouble Shooting . . . . . . . . . . . . . . . . . .9 Energy Recovery Wheel Maint . . . . . . 20 Maintenance . . . . . . . . . . . . . . . . . . . .10 Accessing Energy Recovery Wheel . . .20 Water Coil Recommendations . . . . . .11 Removing Wheel Segments . . . . . . . .21 Electric Heater Application/Operation 12 Cleaning Wheel Segments . . . . . . . . .21 Frost Control Application/Operation .13 Parts List . . . . . . . . . . . . . . . . . . . . . . . .22 Dirty Filter Switch Operation . . . . . . . .13 Unit Trouble Shooting . . . . . . . . . . .23-24 STORAGE When a unit is not going to be in service for an extended amount of time, certain procedures should be followed to keep the fans in proper operating condition. • Rotate fan wheel monthly and purge grease from bearings once every three months • Cover unit with tarp to protect from dirt and moisture (Note: do not use a black tarp as this will promote condensation) • Energize fan motor once every three months • Store belts flat to keep them from warping and stretching • Store unit in location which does not have vibration • After storage period, purge grease from fan bearings before putting fan into service If storage of unit is in a humid, dusty or corrosive atmosphere, rotate the fan and purge the bearings once a month. Improper storage which results in damage to the unit or components will void the warranty. GENERAL Greenheck Energy Recovery units with Tempering are thoroughly inspected and test run at the factory. However, damage may occur during handling and shipping. Consequently, it is important to inspect the unit for visible and concealed damage before beginning installation. Report any damage to the shipper immediately. In addition, assure all accessory items are present. Some accessory items are stored inside the unit during shipping. Care must be taken during installation to prevent damage to units. INSTALLATION The system design and installation should follow accepted industry practice, such as described in the ASHRAE Handbook. Adequate space should be left around the unit for piping coils and drains, filter replacement, and maintenance. Sufficient space should be provided on the side of the unit for routine service and component Lift using lifting removal should that become necessary. lugs and See pages 6 and 7 for more detail on appropriate clearances. LIFTING Units must be lifted as it ships from the factory. All units are equipped with lifting lugs. THE USE OF ALL LIFTING LUGS IS MANDATORY WHEN LIFTING. Lifting should only be done with all access doors closed to avoid damaging the unit. To prevent damage to the unit cabinetry, use spreader bars. Spreader bars must be in position to stop cables from rubbing the frame or panels. Before hoisting into position, test lift to insure stability and balance. Avoid twisting or uneven lifting of the unit. Never lift units by weatherhoods. spreader bar FIGURE 1 UNIT WEIGHTS (dry weights) Unit Size Approx. Weight (lbs) HRE-20 1500 HRE-45 2300 HRE-55 3000 HRE-90 5000 V RECOMMENDED ROOF OPENING Model U V HRE-20 46 37 HRE-45 54 39 HRE-55 65 47 HRE-90 ...
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