SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems

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3.7 SERVICE - UPPER UNIT - LOW PROFILE3.7.1 Exterior Cover RemovalCAUTIONb. b.Coil fins are sharp. Use care when removingthe cover form the base pan to avoid personalinjury.b.b.To remove the exterior cover, do the following:a. Before working on unit place the master switch in theOFF position and disconnect all electrical power.b. Remove (8) screws securing the unit cover to thebase pan assembly. See Figure 3--27.c. Carefully lift the exterior cover off of the unit base panassembly.d. Reverse above procedure for reassembly.b. b.c.Figure 3 -28 Upper Scroll AssemblyLocking Tabs (b.) & Screw Locations (c.)ScrewsScrewsFigure 3 -27 Cover Assembly - Low Profile3.7.2 Upper Scroll Assembly RemovalTo remove the upper scroll assembly, do the following:a. Remove exterior cover assembly. Refer to paragraph3.7.1.b. Release the (2) front, (2) rear, (1) left side and (1) rightside locking tabs (See Figure 3--28) by pulling backon the tabs (See Figure 3--29).c. Remove the screw (1) from the control box cover(See Figure 3--28).d. With all (6) locking tabs released and control boxscrew removed, lift the upper scroll assembly off ofthe lower scroll assembly.e. Reverse above procedure for reassembly. Ensure all(6) locking tabs snap shut & lock.Figure 3 -29 Upper Scroll AssemblyKeeper Tab ReleaseT--298 3--12 10/09
Evaporator CoilRetainingRingFigure 3 -31 Condenser Fan Assembly& Retaining RingFan StopCondenser Coil13MMBoltCondenser Motor13MMBoltGrommetFigure 3 -30 Upper Scroll & Control BoxCover Removed3.7.3 Condenser Fan Assembly RemovalFigure 3 -32 Condenser Fan Motor& Fan Assembly StopTo remove condenser fan assembly, do the following:a. Perform steps outlined in Section 3.7.2.b. Depress and remove Retaining Ring (SeeFigure 3--31).Tabc. Using both hands, carefully pull up on fan assemblyuntil it is free of the motor shaft.d. When replacing the fan assembly make sure the fanassembly is against the stop on the shaft (SeeFigure 3--32)e. Push back on tab to allow fan assembly to restagainst stop (See Figure 3--33). Fan assembly willnow be flush with the end of the motor shaft.f. Reverse above procedure for reassembly.Figure 3 -33 Condenser Fan Motor& Fan Assembly Tab10/093--13T--298
Page 1 and 2: RTransport Air Conditioning2P12BLKB
Page 3 and 4: SAFETY SUMMARYGENERAL SAFETY NOTICE
Page 5 and 6: CAUTIONDo not use carbon tetrachlor
Page 7 and 8: TABLE OF CONTENTS - Continued:SERVI
Page 9 and 10: LIST OF FIGURES - Continued:Figure
Page 11 and 12: SECTION 1DESCRIPTION1.1 INTRODUCTIO
Page 13 and 14: TABLE 1 -2 MODEL CHARTCEILING UNITM
Page 15 and 16: 123451.2.CoverCondenser3. Evaporato
Page 17 and 18: 12395647810111.2.Cover AssemblyScro
Page 19 and 20: 1.4 SYSTEM (UNIT) INSTALLED DIMENSI
Page 21 and 22: 3.6”14” Opening24.1”1.65” 1
Page 23 and 24: 12354SCHEMATIC VIEW15SUPPLY AIR123S
Page 25 and 26: 1.6 AirV SYSTEM COMPONENT SPECIFI-C
Page 27 and 28: passes into the accumulator. The ac
Page 29 and 30: SECTION 2TROUBLESHOOTINGFor ducted
Page 31 and 32: SYSTEM AND PROBABLE CAUSEPROBABLE R
Page 33 and 34: SECTION 3SERVICE AND MAINTENANCE3.1
Page 35 and 36: 3.4.6 Indoor Thermostat RemovalTo r
Page 37 and 38: 115V AC12V DCPCB DisplayHolding Cli
Page 39 and 40: 3.5.9 Heat Pump ThermistorsOn the H
Page 41 and 42: c. Gently pry 4 snap clips open and
Page 43: 3.6.9 Capacitor Testing and Replace
Page 47 and 48: NOTEWhen reassembling the blower wh
Page 49 and 50: 3.8 THERMOSTAT INSTALLATION AND STA
Page 51 and 52: 3.12.2 Timeguard TimerA 3--minute t
Page 53 and 54: UPPER UNITFactory WiringField Wirin
Page 55 and 56: {115 VACSUPPLYWIRE“HOT”“NEUTR
Page 57 and 58: PLUG CONNECTS TO CEILING UNIT.SEE D
Page 59 and 60: “HOT”“NEUTRAL””GROUND”F
Page 61 and 62: TTHERMOSTAT INSTALLATION AND START-

SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems

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