Ingersoll-Rand TAMGB0A24V21DA Installer'S Manual Download

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18-GJ83D1-1C-EN

TAMGB Sequence of Operation

Abbreviations

•

AFC = Airflow Control

•

EVC = Expansion Valve Control

•

EEV = Electronic Expansion Valve

otte

e:: When used with variable speed outdoor units,

indoor airflow and EEV starting position is
controlled by the outdoor unit IVSC through the
data line between the units.

otte

e:: Use variable speed outdoor Sequence of

Operation in conjunction with the TAMGB
Sequence of Operation.

The installing and servicing technician should have an
understanding of the sequence of operation to be able
to properly setup and diagnose functions of the air
handler.

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att,, a

d ffiie

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d w

wiirriin

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diittiio

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uss F

IIm

orrtta

ntt:: If the indoor air exceeds 60% relative

humidity or simply feels uncomfortably
humid, it is recommended that the indoor
fan only be used in the AUTO mode.

When a fan request is received from the

thermostat, the AFC sends a command to the serial
communicating blower motor to run. Airflow can be
adjusted through the thermostat.

2. Humidity Control – When enabled at the

thermostat, this feature will disable any blower off
delays and disable continuous fan mode when the
humidity is above the dehumidification setpoint.
This will help prevent coil condensation from being
evaporated back into the air stream.

olliin

g M

1. When a request for 1st stage cooling is received,

the AFC sends a command to the serial
communicating blower motor to run at 1st stage
cooling airflow. (Delay profiles from the thermostat
may change blower motor timing and actual airflow
demand)

2. The EVC will receive input from the two

temperature sensors and start to control 1st stage
superheat. .

When a request for 2nd stage cooling is received,

the AFC sends a command to the serial
communicating blower motor to run at 100 %
cooling airflow.

4. The EVC will now control superheat for 2nd stage.
5.

When a request for cooling is removed, the AFC

will turn off the blower motor after any user
selected fan-off delays have expired.

otte

e:: Delay profiles from the thermostat may change

blower motor timing and actual airflow demand.

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1. When a request for 1st stage heat is received, the

AFC sends a command to the serial communicating
blower motor to run at 1st stage heating airflow.

2. Humidifier contacts close on demand from

thermostat.

3. The EVC will drive the EEV to the heating position

and refrigerant will flow in the reverse cycle.

4. When a request for 2nd stage mechanical heat is

received, the AFC sends a command to the serial
communicating blower motor to run at 100 %
heating airflow.

5. When a request for heat pump is removed, the AFC

will turn off the blower motor after any user
selected fan-off delays have expired.

otte

e:: Delay profiles from the thermostat may change

blower motor timing and actual airflow demand.

Elle

eccttrriicc H

att

1. When a request for electric heat is received, the AFC

will energize the on board 24 volt relays per the
amount of heat requested from the thermostat and
the size of the heater installed.

2. The AFC sends a command to the serial

communicating blower motor to run proper airflow
and close the blower interlock relay on the EHC.

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niicc H

att

1. When a request for hydronic heat is received, the

AFC will energize the on board W1 relay.

2. The AFC sends a command to the serial

communicating blower motor to run at the
requested CFM.

effrro

osstt

The OD unit will initiate defrost and send a

message to the AFC.

2. The AFC will communicate to the EVC that the OD is

in defrost and the EVC will start to control the
correct superheat.

3. Electric or hydronic heat will be energized to help

temper the air.

Frre

ezze

e P

Prro

otte

eccttiio

1. The EVC control has the ability to sense when the

indoor coil is beginning to ice. If this event should
occur, the AFC will send a message to de-energize
the OD unit.

2. The indoor blower motor will continue running to

aid in defrosting the coil.

Summary of Contents for TAMGB0A24V21DA

Page 1: ...fied person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment September 2018 1 18 8 G GJ J8 83 3D D1 1 1 1C C E EN N Variable Speed Air Handlers Convertible 2 5 Ton TAMGB0A24V21DA TAMGB0C36V31DA TAMGB0C48V41DA TAMGB0C60V51DA N No ot te e Graphics in this document are...

Page 2: ... s w wh he en n e ex xp po os se ed d t to o l li iv ve e e el le ec ct tr ri ic ca al l c co om mp po on ne en nt ts s I It t m ma ay y b be e n ne ec ce es ss sa ar ry y t to o w wo or rk k w wi it th h l li iv ve e e el le ec ct tr ri ic ca al l c co om mp po on ne en nt ts s d du ur ri in ng g i in ns st ta al ll la at ti io on n t te es st ti in ng g s se er rv vi ic ci in ng g a an nd d t tr...

Page 3: ...rtical Installation 19 Setting the Unit Horizontal Installations 21 Connecting the Duct work 22 Refrigerant Line 23 Refrigerant System Layout 23 Refrigerant Line Brazing 24 Condensate Drain Piping 28 Electrical Low Voltage 30 Control Panel Reinstallation 36 Electrical High Voltage 37 TAMGB OUTLINE DRAWING 40 Display Assembly Human Interface 41 TAMGB Technician Menu and Configuration tree 42 Filter...

Page 4: ...g g t th he e D Di is sp pl la ay y A Ai ir r F Fl lo ow w T Ta ab bl le es s a an nd d T Tr ro ou ub bl le es sh ho oo ot ti in ng g F Fl lo ow wc ch ha ar rt ts s I Im mp po or rt ta an nt t The low voltage wire harness is shipped in the supplied document pack N No ot te e The manufacturer recommends installing ONLY A H R I approved matched indoor and outdoor systems Some of the benefits of inst...

Page 5: ...nd other penetrations are allowed in the blower section for installation of Side Return Kit Typical both sides Screws are allowed up to 3 3 4 from the top of the cabinet heater compartment Typical both sides Screws for flange kit attachment are allowed along the interior of the cabinet see arrows Typical all sides No penetrations allowed Typical all sides Screws allowed only in the first 3 4 of fr...

Page 6: ...emove Heater Panel 1 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 refrigerant line brazing and some condensate line assembly depending on your orientation To remove Line Set panel 1 Remove both Heater and Coil panels 2 Turn screws on Line Set panel 3 Pull panel straight out away from cabinet 4 Set aside Note A...

Page 7: ...rted in a horizontal position it must be laid on its back marked REAR on carton Note After unit is removed from the carton verify coil is pressurized Carefully remove the liquid line plug If no pressure is released check for leaks Note Remove the cardboard from the bottom of the blower Cut the tie wrap and remove the foam shipping block located at the motor ...

Page 8: ...baffle C C MITISRKIT01A Side Return Kit with 16 x 20 Filter A to C BAYFRKIT175 Front Return Kit for 17 5 Cabinet A BAYFRKIT210 Front Return Kit for 21 0 Cabinet B BAYFRKIT235 Front Return Kit for 23 5 Cabinet C TAYBASETAMA Downflow Sub Base Kit A to C BAYBAFKT175A d Sound Baffle Kit for 17 5 Cabinet A BAYBAFKT215A Sound Baffle Kit for 21 0 Cabinet B BAYBAFKT235A Sound Baffle Kit for 23 5 Cabinet C...

Page 9: ...al bar and pull the seal bar straight out 3 Disconnect all wiring connections routed to the blower assembly 4 Slide Blower assembly out of unit using built in blower support channels and set aside Note Remove the cardboard from the bottom of the blower Cut the tie wrap and remove the foam block located at the motor 5 Disconnect wires to the EEV motor and sensors Cut the wire ties on those wire har...

Page 10: ...Coil Support Channel 7 Use a 5 16 Allen wrench on the locking mechanism on each side of the bottom half of the cabinet to loosen the locking mechanism The locks loosen by turning counter clockwise approximately 3 4 of a turn O Op pt ti io on na al l C Ca ab bi in ne et t D Di is sa as ss se em mb bl ly y ...

Page 11: ...t the Coil section up and away from the Blower section Set aside Note When separating the two cabinet pieces make sure the gasket remains intact O Op pt ti io on na al l C Ca ab bi in ne et t D Di is sa as ss se em mb bl ly y ...

Page 12: ...rough a small opening remove the top panel and all cross members Use a manual driver to avoid stripping screw holes 10 Continue preparation by following the proper carrying procedures shown in the next section O Op pt ti io on na al l C Ca ab bi in ne et t D Di is sa as ss se em mb bl ly y ...

Page 13: ...If cut wire ties that held the sensor wiring must be replaced Important Under no conditions should metal strapping be attached to the unit to be used as support mechanisms for carrying or suspension purposes Approved Carrying Hold by the cross members within the cabinet or unit top plate and use as handles for lifting and carrying the coil and blower sections Cross Members ...

Page 14: ... x W x D inches Coil and Heater Compartment Height inches Unit Net Weight pounds D H W TAMGB0A24V21DA 49 9 x 17 5 x 21 8 28 1 120 TAMGB0C36V31DA 56 9 x 23 5 x 21 8 35 1 143 TAMGB0C48V41DA 61 7 x 23 5 x 21 8 39 9 174 TAMGB0C60V51DA 61 7 x 23 5 x 21 8 39 9 178 Blower compartment height is 21 8 inches ...

Page 15: ...accordingly Note The air handlers are shipped from the factory suitable for four way application Note Entry for low voltage connections is allowed on either side of cabinet Airflow Upflow Configuration Refrigerant Connections Low Voltage Connections Inside Unit Control Pocket Inside Unit Upflow Condensate Drains Low Voltage Connections Inside Unit Control Pocket Inside Unit Refrigerant Connections...

Page 16: ...e Connections Inside Unit Control Pocket Inside Unit Horizontal Left Configuration Horizontal Right Configuration Airflow Control Pocket Inside Unit Low Voltage Connections Inside Unit Refrigerant Connections Horizontal Right Condensate Drains F Fo ou ur r W Wa ay y C Co on nv ve er rs si io on n ...

Page 17: ... ve e o or r u ut ti il li it ty y r ro oo om m a as s a a f fo os ss si il l f fu ue el l d de ev vi ic ce e Non Ducted Return Installations Installation in a closet an alcove or a utility room without a return duct requires the use of a plenum accessory kit as it uses the area space as a return air plenum Minimum clearances to combustible materials and service access must be observed see outline...

Page 18: ...f 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 refrigerant lines Consider the overall space needed when external accessories are used additional height and width requirements may exist These units are not approved for outdoor installation These units must be installed in the proper air flow direction Any third party ...

Page 19: ...tionable sound BAYINSKT175A for use with 17 5 cabinets BAYINSKT215A for use with 21 5 cabinets BAYINSKT235A for use with 23 5 cabinets Typical Closet Installation Table 7 Upflow Installation TASB Installation 1 Install the TASB plenum stand with integrated sound baffle using the TASB instructions Note Kit is used for open air applications TASB175SB for use with 17 5 cabinets TASB215SB for use with...

Page 20: ...r shorter Airflow Typical Plenum Installation Table 9 Downflow Installation Downflow installation must comply with national state and local codes 3 Prepare the location site as appropriate for your application and per national state and local code requirements 4 Set the unit in position Typical Downflow Installation S Se et tt ti in ng g t th he e U Un ni it t V Ve er rt ti ic ca al l I In ns st t...

Page 21: ...ved bottom support methods are rail u channels Unistrut or other load bearing materials b The unit must be isolated carefully to prevent sound transmission Field supplied vibration isolators are recommended Important The unit can only be supported from the bottom unless using kit BAYHHKIT001A Do not drill or screw supports into any area of the cabinet Note Do not allow the unit to be used as strai...

Page 22: ...e Kits are available to connect the supply plenum or for mounting on the discharge opening to provide a flush fit for 1 1 2 duct board applications If front or rear return is required the air handler must be elevated placed on a pedestal or plenum and duct must be connected to this pedestal or plenum If side return is required the Side Return Kit BAYSRKIT100A accessory must be used A remote filter...

Page 23: ...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 lines exceed 60 feet in linear length and or if alternate size refrigeration tubing is present at the job please consult SS APG006 EN or 32 3312 latest version Refrigerant System Layout Vapor Line Liquid Line Strainer Evaporator Temp...

Page 24: ...rtant Heat Sensitive Sensors The Gas Temperature Sensor must be removed or a wet rag must be wrapped around the suction line between the Sensor and the braze joint to protect it from failure due to overheating 2 Remove the sealing plug from the indoor coil suction line 3 Remove the sealing plug from the indoor coil liquid line This coil is pressurized with 8 12 psig of dry air Do not stand directl...

Page 25: ...round the suction line between the Sensor and the braze joint to protect the Sensor from failure due to overheating 5 Braze refrigerant line connections a Pull back the insulation before brazing the suction line b Wrap the Gas Temperature Sensor GT with a wet rag c Braze the refrigerant line connections Important Care must be taken during brazing to avoid damage to unit components and wiring Note ...

Page 26: ...ge reads no higher than 350 microns then close off the valve to the vacuum pump 0350 Microns ON OFF 9 Observe the micron gauge Evacuation is complete if the micron gauge does not rise above 500 microns in one 1 minute a Once evacuation is complete blank off the vacuum pump and micron gauge and close the valves on the manifold gauge set Note Charge system using Outdoor unit s Installer Guide or Ser...

Page 27: ...id in the installation of the grommets Remove any excess from the tubing and grommet after the grommet is installed c Slide the bottom of the Line Set panel down over the refrigerant lines and grommets The grommets will seal the line openings d Tighten screws on the Line Set panel SEE ENLARGED ILLUSTRATION FOR ORIENTATION R Re ef fr ri ig ge er ra an nt t L Li in ne e B Br ra az zi in ng g ...

Page 28: ... the cover from the needed condensate drain connections and connect condensate piping d If the secondary condensate opening is not used plug the condensate opening with the fitting supplied in the documentation pack Use scissors to cut the air seal in half and re install over the unused opening S P S P S P S P Downflow Condensate Drains Horizontal Left Condensate Drains Horizontal Right Condensate...

Page 29: ... sweating where dew point temperatures may be met Optional depending on climate and application needs Provide a means of drainage to prevent winter freeze up of condensate line Optional depending on climate and application needs Insulation 6 Support the condensate piping outside the unit per local codes for proper drainage and to prevent sagging Allow 1 4 of downward slope for each foot of pipe Co...

Page 30: ... MAX WIRE LENGTH 18 AWG 100 FT Combined Table 15 Low Voltage Hook up Instructions Note Strain relief must be provided on the inside of the air handler cabinet for the low voltage wiring Field supplied thermostat wired may be wire tied as a bundle to the existing strain relieved low voltage pigtail leads in the air handler unit 1 Route control wiring to unit Remove the external sheathing of the wir...

Page 31: ...Horizontal Right Installations Only 5 Remove the control board completely from the control pocket Rotate the control board 180 degrees Place the control board 2 3 inches back into the control pocket 6 Make connections per hookup diagrams Important After wires have been connected or service performed the control board MUST be rotated back to the original orientation before inserting into cabinet co...

Page 32: ... 1 Cut the BK jumper on the AFC when using the BK fuctionality from the thermostat 2 Y1 and YO connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to function properly 3 3rd party condensate switches should break the Y1 circuit between the thermostat and AFC 4 Y2 connections at outdoor unit are required only for two stage units E El le ec ct ...

Page 33: ...ut the BK jumper on the AFC when using the BK fuctionality from the thermostat 2 Y1 and YO connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to function properly 3 3rd party condensate switches should break the Y1 circuit between the thermostat and AFC 4 Connection to X2 is not required when using the 402 624 824 or relay panel controls E E...

Page 34: ...ard J7 Motor J8 24 VAC Input J9 Display Assembly J5 External Switch J12 Humidifier Low Voltage thermostat harness STATUS LED FAULT LED UNIT LED 8 Set Jumper and Dip Switches Set the system refrigerant to either R410A or R 22 using the Refrigerant Jumper located on the Expansion Valve Control board EVC in the Control Pocket Factory default is R410A Note The power must be shut off and then re applie...

Page 35: ...er or an external switch to the air handler locate the harness es in the doc pack The plug on the harness will plug into the AFC control board Humidifier Harness External Switch Harness AFC J5 External Switch J12 Humidifier E El le ec ct tr ri ic ca al l L Lo ow w V Vo ol lt ta ag ge e ...

Page 36: ...e assembly into the control pocket until fully seated The control plate should be flush with the outer edge of the unit 2 Replace coil panel making sure that the wires are located within the wire pass through provided in the panel Pass through notch in coil access door ...

Page 37: ...be e n ne ec ce es ss sa ar ry y t to o w wo or rk k w wi it th h l li iv ve e e el le ec ct tr ri ic ca al l c co om mp po on ne en nt ts s d du ur ri in ng g i in ns st ta al ll la at ti io on n t te es st ti in ng g s se er rv vi ic ci in ng g a an nd d t tr ro ou ub bl le es sh ho oo ot ti in ng g o of f t th hi is s p pr ro od du uc ct t Table 18 Make Electrical Connections 1 Route High Volta...

Page 38: ...ctrical heater size needs to be set in the Configuration Menu Connect L1 L2 and ground wiring to pigtail harness in Heater Compartment using wire nuts The incoming ground wiring will mate up with the green wire shown in the illustration BLACK RED GREEN GROUND 5 If the L1 L2 and ground wires enter the case from the left side use a field supplied 1 2 5 8 maximum length screw and wire tie to hold the...

Page 39: ...t 8 Place the coil panel bracket into position and use screw to secure the coil panel bracket and seal plate to the support bar Important The Coil Seal Plate and screw secure the coil in the center of the air handler Failure to follow these steps can prevent the Coil Panel from being easily replaced on the unit Important The Blower Panel may be removed if needed to help align the new screw with th...

Page 40: ...UNIT RATING NAMEPLATE Model Number A B C D E F H FLOW CONTROL GAS LINE BRAZE LIQ LINE BRAZE TAMGB0A24H21DA 49 9 39 6 14 5 17 5 14 5 7 3 24 4 EEV 3 4 3 8 TAMGB0C36H31DA 56 9 46 7 20 5 23 5 20 5 10 3 24 2 EEV 7 8 3 8 TAMGB0C48H41DA 61 7 51 5 20 5 23 5 20 5 10 3 24 9 EEV 7 8 3 8 TAMGB0C60H51DA 61 7 51 5 20 5 23 5 20 5 10 3 24 9 EEV 7 8 3 8 ...

Page 41: ...e Up Down menu keys simultaneously for 10 seconds To Exit the technician menu section press the Up Down menu keys simultaneously for 10 seconds To move to the top of any menu tree press the Left Right menu keys simultaneously for 1 2 seconds Press the Left Right menu keys a second time for 1 2 seconds to return to the Home Screen While in a technician menu after 5 minutes of inactivity the Home Sc...

Page 42: ... Note 1 System Status will rotate automatically with active alerts Only alerts with a notification level of aUser or Critical re shown same as the thermostat up to four 4 alerts will be shown most recent first Note 2 Alerts shown will be only AFC faults for initial release Specific control alerts are in Alert menu section SYSTEM STATUS Messages o STANDBY Idle no demand is present o FAN Continuous ...

Page 43: ...Monitor menu allows the technician to monitor the different aspects of the system while the air handler is running No changes can be made in the Monitor Menu Superheat is only shown in cooling and defrost modes Airflow Data o The letters ESP External Static Pressure will appear when the control mode of the motor is Constant Torque and the calculated CFM is greater than 50 CFM from the demand Allow...

Page 44: ...tions for the components are o AF Air Flow control o EV Expansion Valve control o DA Display Assembly The second line of text contains any action that may take place because of the fault and the order that the faults occurred Some faults will shut down all or part of the system See the System Actions below o AH Auxiliary Heat is prohibited electric or hydronic o CH Compressor Heat is prohibited o ...

Page 45: ...er size availability is based on unit size for this menu The OD unit type must be configured for 24 volt systems only o 1 1 is a single stage single compressor OD unit o 2 1 is a two stage single compressor OD unit o 2 2 is a dual stage dual compressor OD unit Continuous fan can be set between 35 100 in 5 increments The External Switch is to be configured independently for heating and cooling mode...

Page 46: ...te control o First value is current selection Second value is actual airflow o Use left or right menu keys to decrease or increase airflow in 100 CFM increments o Press ENTER to initiate new CFM demand Actual airflow is updated every six seconds NOTE EVC TEST and or AUX HEAT TEST will be skipped if the associated control s id are not discovered UNIT TEST Press Enter key to initiate test Unit must ...

Page 47: ... ease of filter maintenance it is recommended that a properly sized remote filter grill s be installed for units that are difficult to access Airflow should not exceed the maximum rated velocity of the filter being used Table 25 Filter Sizes Cabinet Size A B C Filter Size 16 x 20 20 x 20 22 x 20 Cabinet size is indicated by the 7th digit in model number Filter in air handler cabinet Upflow Applica...

Page 48: ...nels are securely in place and that all wiring has been properly dressed and secured 2 Set the system thermostat to OFF OFF 3 Turn on electrical power disconnect s to apply power to the indoor and outdoor units ON OFF 4 Set the system thermostat to ON ON ...

Page 49: ...he EVC will now control superheat for 2nd stage 5 When a request for cooling is removed the AFC will turn off the blower motor after any user selected fan off delays have expired N No ot te e Delay profiles from the thermostat may change blower motor timing and actual airflow demand H He ea at t p pu um mp p c co om mp pr re es ss so or r o on nl ly y 1 When a request for 1st stage heat is receive...

Page 50: ...g t th he e U Un ni it t T Te es st t M Mo od de e 1 EVC drives the EEV motor to the 1st stage position for 5 seconds 2 EVC drives the EEV motor to the 2nd stage position for 5 seconds 3 AFC energizes the blower at 50 and then continues to ramp until it reaches 100 cooling airflow 4 Humidifier contacts close when the blower starts 5 AFC energizes the W relays in 10 second intervals The blower rema...

Page 51: ...aults can also be accessed through the Alert Menu in the Display Assembly Clearing Fault History Option 1 1 Scroll to the Alert Menu in the Display Assembly 2 Scroll to the Alert History section 3 Scroll to the Clear History selection and push the Enter key At the Are You Sure question push the Enter again Option 2 1 Press and hold the Unit Test Button for 10 12 seconds 2 Release the Unit Test but...

Page 52: ...ubing if necessary so tubes do not rub against each other or any component when unit runs Ductwork is sealed and insulated All drain lines are clear with joints properly sealed Pour water into drain pan to confirm proper drainage Supply registers and return grilles are open unobstructed and air filter is installed Indoor blower and outdoor fan are operating smoothly and without obstruction Indoor ...

Page 53: ...18 GJ83D1 1C EN 53 N No ot te es s ...

Page 54: ...54 18 GJ83D1 1C EN N No ot te es s ...

Page 55: ...18 GJ83D1 1C EN 55 N No ot te es s ...

Page 56: ...nd protect food and perishables and increase industrial productivity and efficiency We are a global business committed to a world of sustainable progress and enduring results ingersollrand com Ingersoll Rand has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice We are committed to using environmentally conscious p...

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