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Resumen del manual
1 Moving and Storage ........................ 1 Rigging .................................... 1 INSTALLATION ........................... 1-23 General .................................... 1 Uncrating .................................. 1 Accessories ................................ 1 Unit Positioning ............................ 11 Unit Isolation .............................. 12 Refrigerant and Chilled Water Piping Access ............................. 12 Refrigerant Piping .......................... 12 Chilled Water Piping ....................... 17 Condensate Drain .......................... 18 Fan Motors and Drives ..................... 18 Power Supply and Wiring ................... 19 Connecting Ductwork ...................... 22 Return-Air Filters .......................... 22 START-UP ................................. 23 SERVICE ................................. 23-39 Panels ..................................... 23 Fan Motor Lubrication ...................... 23 Fan Shaft Bearings ......................... 23 Centering Fan Wheel ....................... 24 Fan Shaft Position Adjustment .............. 24 Individual Fan Wheel Adjustment ........... 24 Fan Belts .................................. 24 Fan Rotation ............................... 24 Fan Pulley Alignment ....................... 25 Pulley and Drive Adjustment ................ 25 Condensate Drains ......................... 25 Return-Air Filters .......................... 25 Chilled Water Coil Freeze Protection ........ 25 Coil Removal .............................. 25 Cleaning Cooling Coil ...................... 25 Cleaning Insulation ........................ 25 Replacing Filters ........................... 39 START-UP CHECKLIST ................ CL-1,CL-2 SAFETY CONSIDERATIONS Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components and equipment location (elevated structures, etc.). Only trained, qualified installers and service mechanics should install, start up, and service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning coils, and cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment. • Follow all safety codes. • Wear safety glasses and work gloves. • Use care in handling, rigging, and setting bulky equipment. Be sure all power to equipment is shut off before performing maintenance or service. More than one disconnect may be present. PRE-INSTALLATION Moving and Storage — To transfer unit from truck to storage site, use a fork truck. Do not stack units more than 2 high during storage. If unit is to be stored for more than 2 weeks before installation, choose a level, dry storage site free from vibration. Do not remove plastic wrap or skid from unit until final installation. Rigging — All 40RM Series units can be rigged by using the shipping skid. Units are shipped fully assembled. Do not remove shipping skids or protective covering until unit is ready for final placement; damage to bottom panels can result. Use slings and spreader bars as applicable to lift unit. INSTALLATION General — Allow 21.2 ft at front and side of unit for service clearance and airflow. For units equipped with an economizer, refer to the accessory installation instructions for additional clearance requirements. Be sure floor, wall, or ceiling can support unit weight (Tables 1A-1F). See Fig. 1A-1C for dimensions. Uncrating — Move unit as near as possible to final location before removing shipping skid. Remove metal banding, top skid, and plastic wrap. Examine unit for shipping damage. If shipping damage is evident, file claim with transportation agency. Remove base skid just prior to actual installation. Check nameplate information against available power supply and model number description in Fig. 2. Accessories — Refer to instructions shipped with each accessory for specific information. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 PC 111 Catalog No. 534-053 Printed in U.S.A. Form 40RM-9SI Pg 1 11-95 Replaces: 40RM-1SI Tab 3c 2e Table 1A — 40RM Physical Data, English UNIT 40RM 007 008 012 014 016 024 028 034 NOMINAL CAPACITY (Tons) 6 71.2 10 121.2 15 20 25 30 OPERATING WEIGHT (lb) Base Unit with TXV Plenum 381 385 405 670 685 690 1020 1030 97 97 97 140 140 140 180 180 FANS Qty...Diam. (in.) 1...15 1...15 1...15 2...15 2...15 2...15 2...18 2...18 Nominal Airflow (cfm) 2400 3000 4000 5000 6000 8,000 10,000 12,000 Airflow Range (cfm) 18003000 22503750 30005000 37506250 45007500 6,00010,000 7,50012,500 9,00015,000 Nominal Motor Hp (Standard Motor) 208/230-1-60 1.3 2.4 — — — — — — 208/230-3-60 and 460-3-60 2.4 2.4 2.4 2.9 3.7 5.0 7.5 10.0 575-3-60 1.0 2.0 2.0 3.0 3.0 5.0 7.5 10.0 230-3-50,...
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