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Carrier AGATWNPME01B, Installation Instructions Manual, Page: 11 / 22

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Carrier AGATWNPME01B Installation Instructions Manual Download Page 11

AGATWNPME01B: Installation Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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A10276

Fig. 15 – Suspended Installation of a Non-Condensing Furnace

A10278

Fig. 16 – Suspended Installation of Stacked Non-Condensing Furnaces 

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Flat Washer

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Hex Nut

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Flat Washer

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Angle Iron

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Lock Washer

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Theaded Rod

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Lock Washer

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Hex Nut

Summary of Contents for AGATWNPME01B

Page 1: ...ODELS 3 ELECTROSTATIC DISCHARGE ESD PRECAUTION 5 SECTION 2 5 GENERAL ALL ORIENTATIONS 5 INSTALL FURNACES 5 UPFLOW INSTALLATION 5 DOWNFLOW INSTALLATIONS 6 HORIZONTAL INSTALLATION 6 General 6 Attic Platform Back to Back Installations Non Condensing and Condensing Furnaces 7 Horizontal Suspended Installation Condensing Models 7 Horizontal Suspended Installation Non Condensing Models 7 Horizontal Stac...

Page 2: ...es to the furnace and install lockout tag before performing any installation or modification Follow the operating instructions on the label attached to the furnace CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicin...

Page 3: ...ces through a common bottom plenum The bottom return air plenum shall be at least as high as the width of the furnace bottom return air opening For example if two 17 1 2 in 445 mm wide furnaces are twinned together the full height common return air plenum must be at least 17 1 2 in 445 mm tall When there are height limitations the bottom return air plenum height can be reduced to 8 in 203 mm minim...

Page 4: ...TE Downflow Application Do not connect return air to any side of the furnace Connect return air plenum as shown NOTE Horizontal Application Do not connect return air to any side of the furnace Do not stack condensing furnaces on top of each other Horizontal stacking only permitted with mid efficiency furnaces Back to back installations platform or suspended is approved for all models For back to b...

Page 5: ...bles and service as shown in the individual furnace installation instructions 1 Select two identical heating and airflow furnaces see Table 1 2 Remove bottom closure panels from both furnaces see Fig 6 a Remove main and blower access doors b Remove screws from front filler panel and bottom closure panel when used c Rotate front filler panel downward to remove d Remove bottom closure panel and set ...

Page 6: ... of indoor coils and or common supply plenum If no approved cased indoor coil is used install the furnaces on accessory combustible floor bases For side by side installations adjust and shim each furnace to align unused 7 8 in 22 mm knockout in blower compartment which will be used for wire routing between furnaces 5 Drill two 1 8 in 3 mm holes approximately 1 in 25 mm below return air flange from...

Page 7: ...spension rods as shown in Fig 14 5 Lay furnaces back to back on a flat surface with 7 8 in knock outs facing upward 6 Drill two 1 8 in 3 mm holes approximately 1 in 25 mm below return air flange from inside top of return air opening and through both furnaces see Fig 10 7 Drive one factory supplied No 6 x 3 4 in 19 mm LG screw through each hole and tighten until furnaces are secure and foam strips ...

Page 8: ...l additional building codes 4 Long truss spans may require additional support along the bottom chord of the truss Consult the truss manufacturer s guidelines for engineering assistance 5 Long rafter or attic joist spans may require additional support along the bottom of the rafter or joist Consult local or regional building codes for design and loading requirements For suspended installations see ...

Page 9: ...NSATE TRAP 2 ACCESS OPENING FOR TRAP 30 762mm MIN WORK AREA COMMON RETURN VENT COMBUSTION AIR INTAKE ROLLOUT PROTECTION REQUIRED INSTALL 12 X 22 305 X 559mm SHEET METAL IN FRONT OF BURNER COMPARTMENT AREA SEDIMENT TRAP SEDIMENT TRAP EXTENSION HARNESS GAS SUPPLY SHUT OFF GAS PIPE UNION GAS PIPE UNION GAS SUPPLY SHUT OFF SHEET METAL 22 556 mm 12 305 mm 4 3 4 121 mm 1 25 mm 17 3 4 451 mm OVER ALL 4 3...

Page 10: ...Fig 14 Suspended Installation of a Condensing Furnace 1 4 1 4 ROLLOUT PROTECTION REQUIRED Install 12 x 22 204 x 559 mm sheet metal above the burner compartment area Sheet metal MUST extend above the furnace casing by 1 25 mm with door removed A 1 25 mm clearance minimum between top of furnace and combustible material is required Entire length of furnace must be supported with furnace is used in ho...

Page 11: ...igns without notice and without obligations 11 A10276 Fig 15 Suspended Installation of a Non Condensing Furnace A10278 Fig 16 Suspended Installation of Stacked Non Condensing Furnaces 3 8 Flat Washer 3 8 Hex Nut 3 8 Flat Washer 11 2 x 11 2 x 1 4 Angle Iron 3 8 Lock Washer 3 8 Theaded Rod 3 8 Lock Washer 3 8 Hex Nut ...

Page 12: ...e voltage potential between both furnaces will be ZERO If a Both LEDs are on continuously System phasing is okay b One or both LEDs are rapidly flashing 1 Line voltage polarity is reversed 2 Furnace s are not grounded 3 Transformer polarity is reversed c One LED is off one LED is on continuously 1 The 24 VAC circuit is inoperative on furnace with LED light off 2 Check transformers auxiliary limits...

Page 13: ...l Secondary Twinning Harness Install Secondary Twinning Kit Harness The Secondary Twinning Kit harness is identified by a white label marked SECONDARY on the label near the two pin plug of the Auxiliary Limit Switch ALS S leads The Door Interlock Relay ILR and Secondary Auxiliary Limit Switch ALS M mount to the blower housing as shown in Fig 19 The individual leads are labeled on the harness see F...

Page 14: ...talled Locate the green yellow and white wires from the extension harness and connect the wires to the Communication Connector as shown above L14F006A Fig 18 Twinning Communication Connection L12F009 NOTE a Mount Twinning Kit Relay TKR and Interlock Relay ILR on furnace blower housing as shown b Twining Kit Relay TKR mounts on LH Furnace blower housing c Interlock Relay ILR mounts on RH furnace bl...

Page 15: ...CONNECTIONS 115 VAC L1 LINE VOLTAGE CONNECTIONS EAC 1 TERMINAL 115 VAC 1 0 AMP MAX PL1 LOW VOLTAGE MAIN HARNESS CONNECTOR TRANSFORMER 24 VAC CONNECTIONS 3 AMP FUSE STATUS AND COMM LED LIGHTS SW1 SETUP SWITCHES AND BLOWER OFF DELAY MODEL PLUG CONNECTOR SW2 AIR CONDITIONING AC AIRFLOW SETUP SWITCHES 6 7 8 COMMUNICATION CONNECTOR WHEN USED SW2 CONTINUOUS FAN CF AIRFLOW SETUP SWITCHES 3 4 5 HUMIDIFIER...

Page 16: ...AGATWNPME01B Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 16 L14F007 Fig 22 Secondary Harness ...

Page 17: ...terminal to the Y1 terminal on the furnace control board 5 Connect the R terminal of the field supplied transformer to the open contact of each pilot duty relay 6 Connect the other open contact of the first stage cooling relay to the wire for Y terminal of the first stage contactor 7 Connect the other open contact of the first stage cooling relay to the wire for Y terminal of the second stage cont...

Page 18: ...e control 9 Connect thermostat C or COM lead to the COM 24V terminal on the Main furnace control board L14F010 Fig 26 Furnace Thermostat Switch A07907 Fig 27 Example of Setup Switch in OFF Position Single Stage Furnaces with Single Stage Thermostat Field Supplied See Fig 31 and Table 3 NOTE This application allows both furnaces to operate together as a single unit See furnace Installation Start Up...

Page 19: ... Y2 None Thermostat Y2 wired directly to RH accessory relay to start RH A C for second stage cooling G G Starts both indoor fans on cooling speed with Y Y2 energized Dehum Dehum Reduces airflow in cooling mode to 90 of high cooling airflow when Dehum input is removed Table 4 Two Stage Furnace Thermostat Connections Two Stage Heating with Single Stage Thermostat Using Two Stage Furnaces C C Transfo...

Page 20: ... the right to change at any time specifications and designs without notice and without obligations 20 A190208 Fig 29 Two Stage Furnace with Single or Two Stage Thermostat Field Supplied A200260 Fig 30 Single Stage Furnace with Two Stage Thermostat Field Supplied ...

Page 21: ...ace Installation Start Up and Operating Instructions for details on relocating the condensate and attaching field drain connections Indoor coil condensate drains must not be hard piped to condensing furnace condensate drain Route indoor coil condensate drains separately to a code approved drain Indoor coil condensate drains may be combined with furnace condensate drains provided a stand pipe conne...

Page 22: ...main limit or twinning kit auxiliary limit switch in which case both furnaces respond Before performing component test disconnect Communication PL7 Connector from LH furnace control After removing component test can be initiated on each furnace individually as stated in Installation Start Up and Operating Instructions SINGLE STAGE HEAT SINGLE STAGE FURNACES WITH SINGLE STAGE THERMOSTAT 1 Operation...

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