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If outdoor installation is desired, a weather enclosure must be constructed around the unit. UNIT LOCATION Allow sufficient clearance for: 1. Removal of fan shaft and coil. 2. Service of fan motor, bearings, damper motor and linkage (at least 30 inches) 3. Unit air supply (minimum distance of 4 feet from ceiling, wall, or floor when supplied from one side only). PRE-INSTALLATION 1 File claim with shipping company if shipment is damaged or incomplete. 2. Examine unit nameplate to verify t

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For 30GT units, these instructions are intended for units with a starting serial number of 2294F---or higher. The hot gas bypass package is not required on 30GT015, 50 Hz units or on 30GT020, 60 Hz units, since these 2 units have hot gas bypass installed as standard from the factory. See table below for a listing of package contents. NOTE: Since the 30GT015-035 and 38AKS014-024 units are single-circuit units, only one accessory package is required per unit. ACCESSORY PACKAGE CONTENTS In addition

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3 — Legs and Gussets © 2 Compressor Mounting 38AD024,028,034 UNITS - As shipped, compressor is held down by special self-locking bolts and plain lockwashers. After unit is installed, remove the self-locking bolts one at a time and reassemble with flanged washers and neoprene snubbers as shown in Fig. 4. Special flanged washers and neoprene snubbers are shipped in a cloth bag tied to one of the compressor feet. Tighten all four bolts. Then, loosen each until the flanged washer can be moved si

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~ . . - 9-5% CONNECTIONS (in.) Suction (ODM) 1-s/8 2-% 2-%* Liquid (ODM) % 7/8 1 OPENINGS (in.) Suction E 2-% 4 5 (2)5 Liquid F l- % 1- % 1- % 2 2-% 3 Control (4 holes) G Power H % 3-% l-5/s 5 1 3-% % (2)3% *Unit 38AB084 has two suction connections REMOVABLE TOP COVER AIR FLOW GUSSET HINGED CONTROL (024, BOX DOOR 034 | .ONLY) £NtY) REQUIRED OVERHEAD AIR SPACE 028, 034 38AD024 -S^4-0 (BOTH SIDESJ -----0 4-0 (BOTH SIDES) HINGED ACCESS DOOR-CONTROL BOXi AI

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8 — Typical Piping Connections for Face Split Coils 4 Fig. 9 — Recommended Filter-Drier(s) and Sight Glass Locations Table 5 — Filter-Drier Replacement Parts and Data FILTER-DRIER UNIT Part No. Qty Conn. Size Replacement Part No. Core Qty 38AD024 KH43LE123 1 5/s : Same 0 38AD028 KH43LE12) 2 5/s Same 0 38AD034 KH43LE 121 2 s/s Same 0 38AD044 KH49EA030 1 % KH29EZ050* 2 38AB054 KH49EA120 1 IVs KH29EZ050* 2 38AB064 KH49EA120 1 lVs KH29EZ050* 2 38AB084 KH49EA040 1 ll/8 KH29EZ050* 3 * Rep

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Remove the outer panel and remove the no. 10 screw on the door. Swing open door, remove screws on barrier panel and remove barrier panel. On 38AB054,064 and 084 units, remove two screws holding hinged sheet metal barrier and swing open barrier. Condenser fans must rotate clockwise when viewed from above. If necessary, correct direction of fan rotation by interchanging any two power input wires at disconnect switch. Affix crankcase heater decal to unit disconnect switch. Control Circuit Wiring

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Stop unit and check compressor oil level. Add oil only if necessary to bring oil into view in sight glass. If oil is added, run unit for additional 10 minutes. Stop unit and check oil level. If level is again low, add oil only after determining that piping system is designed for proper oil return and that the system is not leaking oil. Check the operation of all safety controls. Replace all service panels. Be sure that control panel door is closed tightly. Table 8 — Charging Data (R-22) UNIT R

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Then, turn adjustment clockwise to desired pressure differential. Every full turn clockwise increases differential by 1.5 psig. 772 8 Table 9 — Physical Data UNIT 38AD024 38AD028 38AD034 38AD044 38AB054 38AB064 38AB084 OPER WT (lb) 1750 1900 2300 ' 3200 3145 3830 4960 REFRIGERANT R-22 Oper Chg (lb)* 28 0 30 5 35 5 66 0 57 0 71 0 132 0 COMPRESSOR Reciprocating Hermetic — 1750 rpm Number 1 1 1 2 2 ? 2 Model 06ED250 06EE266 06EE275 06EA 250 06ED 250 06EA

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Failure to do so will constitute abuse. Equipment failure due to abuse is not covered by the Warranty To restart unit, push manual reset button in unit control box (except 38AB054 and 064 units). Reset button is on OPS on 38AB054 and 064. Compressor Motor Protection on 38AD024 thru 044 and 38AB084 consists of three temperature sensors (one for each phase) embedded in the motor windings, and solid state modules in unit control box. Sensors are part of a temperature bridge. If a motor winding ov

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2 — 30GT Stub Locations Fig. 3 — 30GT Hot Gas Solenoid Wiring LEGEND COM — Common NC — Normally Closed TC — Temperature Controller HGS — Hot Gas Solenoid NO — Normally Open U1 — Unloader 1 Fig. 4 — 38AKS Hot Gas Bypass Piping INSTALLATION IN 38AKS014-024/INDOOR FAN COIL (CONSTANT VOLUME) SPLIT SYSTEM COMBINATION Step 1 — Install Piping (See Fig. 4) Shut off all power to the unit and remove refrigerant charge using an approved refrigerant recovery device before proceeding with installation. Failu





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