Carrier 30GXN Installation Instructions Manual

Contents

installation instructions

Carrier 30GXN Installation Instructions Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 903 Catalog No. 533-00009 Printed in U.S.A. Form 30GX,HX-14SI Pg 1 102 7-00 Replaces: 30GX,HX-7SIBook 2Tab 5cInstallation InstructionsPart No. 30GX-900---048,(60 Hz — 115-v Control)Part No. 30GX-900---049(50 or 60 Hz — 230-v Control)CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8Step 1 — Examine Package Contents . . . . . . . . . . . . 1Step 2 — Install Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 2• REMOVE MINIMUM LOAD PORT PLUGSAND INSTALL FITTINGS• INSTALL PIPING• INSTALL BALL AND SOLENOID VALVES• CONNECT PIPING• 30GXN,R UNITS ONLYStep 3 — Dehydrate and Recharge Circuit. . . . . . . . 3Step 4 — Install Control Wiring. . . . . . . . . . . . . . . . . . . 3• 30HX UNITS• 30GXN,R UNITS• ALL UNITSStep 5 — Configure Unit for MinimumLoad Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Step 6 —Test Minimum Load RelayOutputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Step 7 — Adjust Setting of MinimumLoad Ball Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8SAFETY CONSIDERATIONSInstalling, starting up, and servicing air-conditioning equip-ment can be hazardous due to system pressures, electrical com-ponents, and equipment location.Only trained, qualified installers and service techniciansshould install, start up, and service this equipment.When working on air-conditioning equipment, observe pre-cautions in the literature and on tags, stickers, and labelsattached to the equipment.Follow all safety codes. Wear safety glasses and workgloves. Use care in handling equipment.INTRODUCTIONThe minimum load control accessory allows 30HX and30GXN,R chillers to have their capacities decreased below thestandard fully unloaded condition. The accessory providesmore precise control of leaving fluid temperature during lightload conditions.The 30GXN,R and 30HX chillers have a dual-circuitdesign. Each minimum load control accessory package con-tains the items required for both circuits. Because of an auto-matic lead/lag feature on the chillers, the accessory should beinstalled on both circuits.INSTALLATIONStep 1 — Examine Package Contents — Pack-age includes solenoid valves, ball valves, O-ring seal fittings,and instructions. Examine each item. If any part is damaged ormissing, file a claim immediately with the shipper and notifyyour Carrier representative. See Table 1 for accessory packagecontents and field-supplied material.Table 1 — Accessory Package Contentsand Field-Supplied MaterialBe sure power to equipment is shut off before performingmaintenance or service.IMPORTANT: When removing refrigerant, use anapproved refrigerant recovery device. Do not vent refrig-erant into the atmosphere.ACCESSORY PACKAGECOMPONENTSACCESSORY PART NUMBER30GX-900---048 30GX-900---049Solenoid Valve (2) EF23JX212 (2) EF23JX231Ball Valve (2) EP71BA201 (2) EP71BA201O-Ring Seal Fitting (4) 30GX503492 (4) 30GX503492Tube Assembly (2) 30GX503487 (2) 30GX503457Tube Assembly (CondenserOil Separator) (2) 30HX402343 (2) 30HX402343FIELD SUPPLIED MATERIAL — REQUIRED PARTS(Ordered Separately)5 /8 -in. OD Copper Tubing, Wiring, Conduit,Thread Sealant, Electrical Supplies Field Supplied30GXN,R080-52830HX076-271Minimum Load Control Accessory50/60 Hz