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18-GJ52D1-7A-EN

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.

Note

: The manufacturer recommends installing ONLY

AHRI 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.

Important

: The GAF2 air handlers will only use the

following internal electric heaters:

BAYECAA05LG1, BAYECAA08LG1, BAYECAA10LG1

Convertible Air Handlers

3 Ton

Black Epoxy Coil
GAF2A0A36M31EC

Standard Coil
GAF2A0A36M31SC

Installer’s Guide

Содержание GAF2A0A36M31EC

Страница 1: ... dealer or local distributor Note The manufacturer recommends installing ONLY AHRI 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 Wh...

Страница 2: ...SAFETY HAZARD Sharp Edge Hazard Be care ful of sharp edges on equipment or any cuts made on sheet metal while installing or servicing Personal injury may result This product can expose you to chemicals including lead which are known to the State of California to case cancer and birth defects or other reproductive harm For more information go to www P65Warnings ca gov CAUTION CAUTION HAZARDOUS VAPO...

Страница 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 otherwise puncture the unit cabinet in any location other than the ones illustrated Important Under no conditions should metal strapping be attached to the unit to be used as support mechanisms for carrying or suspensio...

Страница 4: ...el 1 Use a screwdriver to remove the two screws on Heater Panel 2 Pull top of panel out away from cabinet 3 Pull panel upward and out of channel 4 Set aside IMPORTANT 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 Use a screwdriver to remove th...

Страница 5: ...ge A1 A1 BAYRETFLGAA Return Duct Flange A A1 TASB175SB Plenum Stand with integrated Sound Baffle 17 5 Cabinet A1 BAYICSKIT01 Internal Condensate Switch Upflow Orientation Only A1 BAYFRKIT100 Front Return Kit A1 BAYBRFBX100 Bottom Return Filter Box A1 BAYWMKIT001 Wall Mount Kit A1 BAYLVKIT100 Low Voltage Conduit Entry Kit A1 BAYATXV1836 R 22 TXV conversion kit 1 1 2 to 3 ton A1 BAYSRKIT100 Side Ret...

Страница 6: ...TEP 2 Disconnect the high and low voltage connectors on the blower There is a seal plate that slides over the control panel lip This panel will be loose once the blower is removed STEP 3 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 FIRE H...

Страница 7: ...o be rotated through a small opening remove 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 unit Note When carrying the air handler to the install location be sure to use approved carrying procedures shown in Section 5 if needed 1 2 ...

Страница 8: ...o conditions should metal strapping be attached to the unit to be used as support mechanisms for carrying or suspension purposes Approved carrying 1 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 Member Unit Top Plate Section 5 Place Unit at Location 5 1 Carry Unit ...

Страница 9: ...9 H W D Section 6 Unit Location Considerations 6 1 Unit Dimensions and Weight Model Number H x D x W in Unit Net Weight lbs GAF2A0A36M31EC GAF2A0A36M31SC 39 x 22 x 17 5 98 Table 7 1 ...

Страница 10: ...e unit to that orientation Note The air handlers are shipped from the factory suitable for three way application Note Entry for low voltage connections is allowed on either side of cabinet 6 2 Three Way Conversion Upflow Condensate Drains Refrigerant Connections Upflow Configuration Low Voltage Connections inside unit Airflow ...

Страница 11: ... Refrigerant Connections Horizontal Left Condensate Drains Low Voltage Connections inside unit Refrigerant Connections Horizontal Left Configuration Low Voltage Connections inside unit Horizontal Right Condensate Drains Airflow Airflow ...

Страница 12: ...t a return air duct Supply Duct Plenum Accessory with safety guard CAUTION HAZARDOUS VAPORS Do not install an air handler with a non ducted return in the same closet alcove or utility room as a fossil fuel device Hazard ous vapors can be distributed throughout the condi tioned space and equipment damage can result Ducted Return Installations Installation in an attic garage or crawl space with duct...

Страница 13: ...oles are to be used so that proper clearance allowances 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 refrigerant lines Consider the overall space needed when external accessories are used additional height and width requirements may exist These units...

Страница 14: ...es and duct work must be provided Isolate unit from the foundation using a suitable isolating material Typical Closet Installation 7 2 Upflow Installation TASB Installation 1 Assemble the TASB using the stand s Installer Guide Contact your distributor for information on the TASB accessories TASB175SB is used with 17 5 cabinets Typical TASB Installation A i r f l o w Airflow Airflow Plenum Installa...

Страница 15: ... the auxiliary drain pan from the unit and from the structure Connect the auxiliary drain pan to a separate drain line and terminate according to local codes 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 otherwise puncture the unit cabinet in any location other than the ones illustrated in this Installer Gu...

Страница 16: ...he 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 Kit BAYSRKIT100 More than one Side Return Kit may be necessary depending on the application Refer to the Installation Guide in BAYSRKIT100 for approved duct connections sizing number transitions and a...

Страница 17: ...quired 2 All AHRI listed systems are tested with 25 feet of refrigeration tubing the rated tubing diam eters 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 Table 10 1 EEV Stepper Motor Vapor Line Liquid Line Ev...

Страница 18: ...OT unseal coil refrigerant connection stubs until ready to make connections Important Heat Sensitive Bulb The TXV sensing bulb must be removed or a wet rag must be wrapped around the suction line between the Bulb and the braze joint to protect the Bulb from failure due to overheating Caution This coil is pressurized with 8 12 psig of dry air Do not stand directly in front of the coil connections w...

Страница 19: ...ust be insulated prior to brazing the line set to the air handler stubs 1 Pull back the insulation before brazing the suction line 2 Wrap the Gas Temperature Sensor GT with a wet rag 3 Braze the refrigerant line connections Important Care must be taken during brazing to avoid damage to unit components STEP 8 Pressurize the refrigerant lines and evaporator coil to 150 PSIG using dry nitrogen 150 PS...

Страница 20: ...2 Step 3 before installing the Line Set panel 4 Tighten screws on the Line Set panel Important Do not open the service valves until the refrigerant lines and indoor coil leak check and evacuation are complete STEP 10 Evacuate until the micron gauge reads no higher than 350 microns then close off the valve to the vacuum pump STEP 11 Observe the micron gauge Evacuation is complete if the micron gaug...

Страница 21: ...the drain lines downward a minimum of 1 4 per foot support per local codes A 1 5 minimum distance from the coil panel to the inside of the condensate tubing is recommended for coil panel removal Do not use reducing fittings in condensate drain lines Do not connect drain line to a closed drain system Do not use a torch or flame near the plastic drain pan coupling A P trap is not required for proper...

Страница 22: ...ending 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 STEP 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 Insulation Condensate Piping Supports Cap Tee 1 5 minimum clearance is...

Страница 23: ...P 1 Remove Coil and Blower panels by removing the four fasteners on each panel and then pulling away from the cabinet to remove 5 STEP 2 For Low voltage entry drill a 5 diameter hole size in side of blower cabinet at location shown on illustration A 3 8 bushing is supplied in the doc pack STEP 3 Route control wiring to unit and Insert Low voltage wiring Note After the Low voltage wiring has been i...

Страница 24: ... Orange Green White STEP 5 Using field supplied wire nuts make connections per hookup diagrams YI and YO connections must be made as shown Wire R O connection in cooling only units Internally mounted condensate switch is optional and must be ordered separately If a 3rd party condensate overflow switch is installed it should be wired between Y of the thermostat and YI of the EEV control YI and YO c...

Страница 25: ...h national state and local codes Field wiring diagrams for supplementary electric heaters are shipped with the heater LIVE ELECTRICAL COMPONENTS During installation testing servicing and trouble shooting of this product it may be necessary to work with live electrical components Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or ...

Страница 26: ...te Reducing bushings may be required for your application STEP 4 If an electric heater IS NOT being installed remove the pigtail harness from the documentation pack and connect it to the plug on the inside of the Heater Compartment in the cabinet If an electric heater IS being installed see the Install er s Guide shipped with the electric heater Connect L1 L2 and ground wiring to pigtail harness i...

Страница 27: ...nstalled for units that are difficult to access Airflow should not exceed the maximum rated velocity of the filter being used A bottom return filter kit BAYBRFBX100 or a front return filter kit BAYFRKIT100 may be installed Accessory Kit Filter Size BAYBRFBX100 16 x 20 BAYFRKIT100 16 X 16 Kits are for GAF2 one piece A Cabinets Cabinet size is indicated by the 7th digit in model number Table 15 1 Fi...

Страница 28: ...28 Section 16 Unit Outline Drawing GAF2A0A36M31 EEV 3 8 3 4 ...

Страница 29: ...lectrical power 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 all wiring has been properly dressed and secured 17 1 System Start Up ...

Страница 30: ... sending 24VAC to Y terminal on ER and the YI Y In terminal on the EVC 2 R G contacts also close on the comfort control sending 24VAC to the G terminal on the ER The combination of 24VAC on terminals Y and G on the ER will close the high speed contacts of the ER 3 R O jumper on the low voltage terminal board sends 24VAC to the O terminal on the EVC This signals the EVC that the unit is in cooling ...

Страница 31: ...erify that all electrical connections are tight 5 Check all duct outlets they must be open and unrestricted 6 Check drain lines and be sure all joints are tight 7 Be sure the return air filter is installed 8 Be sure that the correct airflow setting is used Indoor Blower Motor 9 Operate complete system in each mode to verify proper performance Verify operation of supplementary electric heater Final...

Страница 32: ...lications For more information please visit www trane com or www americanstandardair com The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice We are committed to using environmentally conscious print practices 2020 18 GJ52D1 7A EN 20 April 2020 Supersedes 18 GJ24D1 7 September 2018 ...

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