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18-GJ06D2-1

Convertible Air Handlers

2 – 5 Ton

TAM7A0A24H21SB
TAM7A0B30H21SB
TAM7A0C36H31SB
TAM7A0C42H31SB

TAM7A0C48H41SB
TAM7A0C60H51SB
TAM7B0C60H51SA

The TAM7 air handlers will only use the following internal 
electric heaters:

Installer’s Guide

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

Important: This Document is customer property and is to remain with this unit.  Please return to service information 
pack upon completion of work.

Important: These instructions do not cover all variations 
in systems nor provide for every possible contingency 
to be met in connection with the installation. Should 
further information be desired or should particular 
problems arise which are not covered sufficiently for the 
purchaser’s purposes, the matter should be referred to 
your installing dealer or local distributor.

See the TAM7 Service Facts document for 
information on reading the Control Board LEDs, Air 
Flow Tables and Troubleshooting Flowcharts.

Note:  The manufacturer recommends installing 
ONLY A.H.R.I. approved, matched indoor and outdoor 
systems. Some of the benefits of installing approved 
matched indoor and outdoor split systems are maximum 
efficiency, optimum performance, and the best overall 
system reliability.

Note:  Condensation may occur on the surface of the air 
handler when installed in an unconditioned space. When 
units are installed in unconditioned spaces, verify that 
all electrical and refrigerant line penetrations on the air 
handler are sealed completely.

Note:  Duct heaters cannot be applied 
with this air handler.

Scan to see the 

TAM7 Trouble-

shooting Video 

Library.

BAYEVAC05BK1AA
BAYEVAC05LG1AA
BAYEVAC08BK1AA
BAYEVAC08LG1AA
BAYEVAC10BK1AA
BAYEVAC10LG1AA

BAYEVBC15BK1AA
BAYEVBC20BK1AA
BAYEVCC25BK1AA
BAYEVAC10LG3AA
BAYEVBC15LG3AA

Summary of Contents for TAM7A0A24H21SB

Page 1: ...ferred to your installing dealer or local distributor See the TAM7 Service Facts document for information on reading the Control Board LEDs Air Flow Tables and Troubleshooting Flowcharts Note The manu...

Page 2: ...rwise puncture the unit cabinet in any location other than the ones illustrated in this Installer Guide or in an approved accessory s In staller Guide Important Under no conditions should metal strapp...

Page 3: ...only in the first 3 4 of front bottom of unit in cross member Important Due to the unique design of this unit which allows the electrical wiring to be routed within the insulation do not screw cut or...

Page 4: ...Turn screws on Heater panel 2 Pull panel straight out away from cabinet 3 Set aside Removal of the Line Set panel is required for all refrig erant line brazing and some condensate line assembly depen...

Page 5: ...5kW Breaker RS 485 Control 1 Ph C BAYEVAC10LG3AA Electric Heater 10kW Lugs RS 485 Control 3 Ph A to C BAYEVBC15LG3AA Electric Heater 15kW Lugs RS 485 Control 3 Ph B to C BAYSUPFLGAA Supply Duct Flange...

Page 6: ...To reassemble cabinet follow the steps in reverse order Ensure electrical connections are secure and the plug clips are engaged 4 1 Disassemble cabinet for installation in tight areas or as needed Se...

Page 7: ...pread the top of the diverter slightly outwards and then pulling down and out through the blower opening as illustrated STEP 2 Disconnect the two wiring connections routed to the blower assembly STEP...

Page 8: ...the sensor must be replaced after the coil is placed back into the cabinet STEP 6 Slide Coil assembly out of unit using built in coil support channels and set aside STEP 7 Use a 5 16 Allen wrench on...

Page 9: ...9 1 2 STEP 8 Lift the Coil section up and away from the Blower section Set aside...

Page 10: ...emove the top panel and all cross members Use a manual driver to avoid stripping screw holes Note Cross Members are removed by rotating them toward the door opening and then lifting up and out of the...

Page 11: ...laced Important Under no conditions should metal strap ping be attached to the unit to be used as support mechanisms for carrying or suspension purposes Approved carrying 1 Hold by the cross members w...

Page 12: ...ht lbs TAM7A0A24H21SB 49 9 x 17 5 x 21 8 28 1 120 TAM7A0B30H21SB 55 7 x 21 3 x 21 8 33 9 133 TAM7A0C36H31SB 56 9 x 23 5 x 21 8 35 1 143 TAM7A0C42H31SB 56 9 x 23 5 x 21 8 35 1 158 TAM7A0C48H41SB 61 7 x...

Page 13: ...ctory suitable for four way application They are shipped in the down flow orientation 6 2 Four Way Conversion Upflow Condensate Drains Refrigerant Connections Downflow Condensate Drains Downflow Confi...

Page 14: ...izontal Left Condensate Drains Low Voltage Connections inside unit Refrigerant Connections Horizontal Left Configuration Low Voltage Connections inside unit Horizontal Right Condensate Drains Airflow...

Page 15: ...ve or utility room Review local codes to determine limitations if the unit is installed without a return air duct Ducted Return Non Ducted Return Supply Duct Plenum Accessory with safety guard CAUTION...

Page 16: ...es can be made for installation and future maintenance Installation of the air handler must be made prior to or at the same time as the installation of the outdoor unit in order to allow access for re...

Page 17: ...llation A i r f l o w Airflow Airflow 7 1 Secure Coil STEP 1 Remove Coil Panel STEP 2 Remove screw from documentation packet STEP 3 While the air handler is in the upflow position use the supplied scr...

Page 18: ...s STEP 1 Prepare the location site as appropriate for your application and per national state and local code requirements STEP 2 Set the unit in position Representative Illustration Typical Downflow I...

Page 19: ...do not screw cut or otherwise puncture the unit cabinet in any location other than the ones illustrated in this Installer Guide or in an approved ac cessory s Installer Guide Important Make certain th...

Page 20: ...the air handler Reference ACCA Manual D Manual S and Manual RS along with the air handler Product Data and Service Facts for additional information Note Side return is not approved without Side Return...

Page 21: ...ng may be required 2 All AHRI listed systems are tested with 25 feet of refrigeration tubing the rated tubing diameters are located in the electronic performance data system 3 If the refrigeration lin...

Page 22: ...il refrigerant connec tion stubs until ready to make connections STEP 2 Remove the plastic cap and Schrader valve core from the gas line STEP 3 Wrap the vapor sensor with a wet rag Important Care must...

Page 23: ...wet rag 3 Braze the refrigerant line connections Important Care must be taken during solder cap removal and brazing to avoid damage to unit compo nents and wiring STEP 8 Pressurize the refrigerant lin...

Page 24: ...he Line Set panel Important Do not open the service valves until the refrigerant lines and indoor coil leak check and evacu ation are complete STEP 10 Evacuate until the micron gauge reads no higher t...

Page 25: ...n lines away from air handler so they do not interfere with access panels Slope the drain lines downward a minimum of 1 4 per foot support per local codes Do not use reducing fittings in the condensat...

Page 26: ...pending on climate and application needs Provide a means of drainage to prevent winter freeze up of condensate line Optional depend ing on climate and application needs STEP 6 Support the condensate p...

Page 27: ...24 VOLTS WIRE SIZE MAX WIRE LENGTH 18 AWG 150 Ft 16 AWG 225 Ft 14 AWG 300 Ft 13 2 Low Voltage Hook up Instructions STEP 1 Route control wiring to unit Remove the external sheathing of the wiring appr...

Page 28: ...nly Remove the control board completely from the con trol pocket Rotate the control board 180 degrees Place the control board 2 3 inches back into the control pocket Attach wiring per appropriate hook...

Page 29: ...e stage of heat YI andYO connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly Internally mounted condensate switch is optional a...

Page 30: ...W2 and W3 together if comfort control has only one stage of heat YI andYO connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly I...

Page 31: ...TEMP EVAP A Y R 410 TRANE U S INC J3 OVR GAS TEMP FLOW 12V GND TEMP EVAP Pb FAULT UNIT 48 33 32 17 16 1 64 49 BK Jumper TEST TRANE U S INC V D D P G D M C L R V S S P G C 3 3 V S C L S D A G N D HUM 5...

Page 32: ...ompressors 20 SEER 2 Compressors 16 SEER 2 Stages 19 SEER 2 Stages 20 SEER 2 Stages Note This dip switch should be changed while the power is off or no demand is present The power must be shut off and...

Page 33: ...ol AFC INDOOR MODEL S2 1 S2 2 COOLING CFM TON HEATING CFM TON OFF OFF 400 430 OFF ON 360 390 ON OFF 380 410 ON ON 420 450 OFF OFF 400 430 OFF ON 360 390 ON OFF 380 410 ON ON 420 450 OFF OFF 370 420 OF...

Page 34: ...FM mode Torque mode is optional and is recommended for high static applications High static conditions dramatically increase energy consumption with variable speed motors Evaluate the blower performan...

Page 35: ...19 D18 C46 C39 C6 C23 R80 R71 R67 R52 R75 R72 C41 R33 R J4 Q1 X1 U4 U3 T2 T1 R97 R60 R21 R91 R87 R88 R70 R86 R66 R54 R106 R104 R42 R39 R82 R74 R25 R18 R19 R10 R9 R8 R2 R5 R7 Q8 MO L2 L3 K1 J6 J9 D36 D...

Page 36: ...res are located within the wire pass through pro vided in the panel STEP 7 Slide control plate assembly into the control pocket until fully seated The control plate should be flush with the outer edge...

Page 37: ...s injury WARNING 14 2 Make Electrical Connections Conduit Entry Points STEP 3 Route conduit if used to the entry point and connect 1 Use one hand to secure the conduit nut from inside of the heater co...

Page 38: ...g on the inside of the Heater Compartment in the cabinet If an electric heater IS being installed see the Installer s Guide shipped with the electric heater Connect L1 L2 and ground wiring to pigtail...

Page 39: ...3 24 4 EEV 3 4 3 8 TAM7A0B30H21SB 55 7 21 3 18 4 45 5 18 4 9 2 24 8 EEV 3 4 3 8 TAM7A0C36H31SB 56 9 23 5 20 5 46 7 20 5 10 3 24 2 EEV 7 8 3 8 TAM7A0C42H31SB 56 9 23 5 20 5 46 7 20 5 10 3 24 5 EEV 7 8...

Page 40: ...ted by the 7th digit in model number Table 16 1 Filter Sizes Sytem Matched with Indoor Unit Model No Outdoor Unit Model No Subcooling 16 SEER HP TAM7A0B30H21SB 4A6H6024E G 4TWX6024E G 9 TAM7A0C36H31SB...

Page 41: ...ower disconnect s to apply power to the indoor and outdoor units STEP 4 Set the system thermostat to ON OFF DONE CANCEL ON OFF ON DONE CANCEL STEP 1 Make sure all panels are securely in place and that...

Page 42: ...o the G terminal of the AFC 4 The AFC micro processor sends a command to the se rial communicating blower motor to run at the 1st stage cooling cfm 1st stage cooling cfm is a multiplier of 2nd stage c...

Page 43: ...correct cfm The EHC determines the amount of heat per stage by either factory programming or by the kW jumper position 5 The AFC micro processor sends a command to the serial communicating blower moto...

Page 44: ...R54 R103 R106 R4 R104 R51 R5 R47 R42 R39 R82 R37 R35 R31 R74 R89 R25 R18 R19 R10 R9 R8 R3 R2 R5 R7 Q8 MOV1 L2 L3 K1 J3 J6 J9 D36 D35 D1 D22 D29 D25 D24 D7 D4 D2 D28 C57 C54 C51 C49 C48 C47 C52 C43 C4...

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