Assessments - 4, GPA: 4.5
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Facilidade de uso
10 Step 7 — Trap Condensate Drain ..................... 10 Step 8 — Install Gas Piping ........................... 10 Step 9 — Make Electrical Connections.................11 • FIELDPOWERSUPPLY • FIELDCONTROLWIRING Step 10 — Install Outdoor-Air Hood................... 12 • MANUALDAMPERASSEMBLY Step 11 — Position Optional Power Exhaust or Barometric Relief Damper Hood ......... 16 Step 12 — Non-Fused Disconnect .................... 16 Step 13 — Install All Accessories ..................... 16 PRE-START-UP ....................................... 18 START-UP...........................................18-45 Unit Preparation ...................................... 18 Compressor Mounting ................................ 18 Refrigerant Service Ports ............................. 18 Crankcase Heater(s) .................................. 18 Compressor Rotation................................. 18 Internal Wiring........................................ 18 Subcooler Heat Exchanger (SHX) ..................... 18 Evaporator Fan ....................................... 18 Condenser Fans and Motors.......................... 19 Return-Air Filters ..................................... 19 Outdoor-Air Inlet Screens............................. 19 Gas Heat.............................................. 19 Optional EconoMi$er IV............................... 39 Operating Sequence .................................. 44 SERVICE............................................46-57 Cleaning .............................................. 46 Lubrication ........................................... 47 Manual Outdoor Air Damper .......................... 48 Economizer Adjustment .............................. 48 Evaporator Fan Service and Replacement ............ 48 Evaporator Fan Performance Adjustment ............. 48 Evaporator Fan Belt Tension Adjustment ............. 48 Condenser Fan Adjustment........................... 49 Verify Sensor Performance ........................... 49 Economizer Operation During Power Failure.......... 49 Evacuation ........................................... 49 Refrigerant Charge ................................... 50 Gas Valve Adjustment ................................ 50 High Altitude.......................................... 51 Main Burners ......................................... 51 Filter Drier ............................................ 52 Protective Devices.................................... 52 Relief Devices ........................................ 52 Page Control Circuit, 24-V .................................. 52 Replacement Parts.................................... 52 Diagnostic LEDs ...................................... 52 TROUBLESHOOTING .............................. 57-61 Unit Troubleshooting.................................. 57 EconoMi$er IV Troubleshooting....................... 60 Phase Loss Protection ................................ 61 UNIT START-UP CHECKLIST ........................CL-1 SAFETY CONSIDERATIONS Installationandservicingofair-conditioningequipmentcan be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install,repair,orserviceair-conditioningequipment. Untrained personnel can perform the basic maintenance functionsofcleaningcoilsandfiltersandreplacingfilters.All other operations should be performed by trained service personnel. Whenworkingonair-conditioningequipment,observe precautionsintheliterature,tagsandlabelsattachedtotheunit, andothersafetyprecautionsthatmayapply. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fireextinguishersavailableforallbrazingoperations. Before performing service or maintenance operations on unit, turn off main power switch to unit. Electrical shock couldcausepersonalinjury. Puron(R-410A)refrigerantsystemsoperateathigherpressuresthanstandardR- 22systems.DonotuseR-22service equipmentorcomponentsonPuronrefrigerantequipment. If service equipment is not rated for Puron refrigerant, equipmentdamageorpersonalinjurymayresult. 1. Improper installation, adjustment, alteration, service, ormaintenancecancausepropertydamage,personal injury,orlossoflife.RefertotheUser’sInformation Manualprovidedwiththisunitformoredetails. 2. Do not store or use gasoline or other flammable vaporsandliquidsinthevicinityofthisoranyother appliance. What to do if you smell gas: 1. DONOTtrytolightanyappliance. 2. DO NOT touch any electrical switch, or use any phoneinyourbuilding. 3. IMMEDIATELYcallyourgassupplierfromaneighbor’sphone. Followthegassupplier’sinstructions. 4. If you cannot reach your gas supplier, call the fire department. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. 4 PC 111 Catalog No. 534-80211 Printed in U.S.A. Form 48PG-10SI Pg 1 9-05 Replaces: New Book Tab 1a 6a Disconnect gas piping from unit when pressure testing at pressure greater th...