Trane GAM5 Series Istruzioni per il montaggio
18-GJ04D1-2
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.
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 informa-
tion 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
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 efficien-
cy, optimum performance, and the best overall system
reliability.
Convertible Air Handlers
1-1/2 – 5 Ton
GAM5A0A18M11SAA
GAM5A0A24M21SAA
GAM5A0B30M21SAA
GAM5A0B36M31SAA
GAM5A0C42M31SAA
GAM5A0C48M41SAA
GAM5A0C60M51SAA
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.
The GAM5 air handlers will only use
the following internal electric heaters:
BAYEAAC05BK1AA
BAYEAAC05LG1AA
BAYEAAC08BK1AA
BAYEAAC08LG1AA
BAYEAAC10BK1AA
BAYEAAC10LG1AA
BAYEABC15BK1AA
BAYEABC20BK1AA
BAYEACC25BK1AA
Installer’s Guide
2
Table of Contents
Section 1. Safety Information.......................................................................... 3
Section 2. Unit Design......................................................................................... 4
Section 3. Unit Preparation. ............................................................................. 6
Section 4. Optional Cabinet Disassembly. ............................................... 7
Section 5. Place Unit at Location. ............................................................... 12
Section 6. Unit Location Considerations. ............................................... 13
Section 7. Setting the Unit - Vertical Installation................................. 18
Section 8. Setting the Unit - Horizontal Installation. ......................... 20
Section 9. Connecting the Duct work. ...................................................... 21
Section 10. Refrigerant Line. ......................................................................... 22
Section 11. Refrigerant Line Brazing. ....................................................... 23
Section 12. Condensate Drain Piping....................................................... 26
Section 13. Electrical - Low Voltage........................................................... 28
Section 14. Electrical - High Voltage.......................................................... 33
Section 15. Time Delay Switch Adjustment. .......................................... 35
Section 16. Filters................................................................................................ 35
Section 17. Unit Outline Drawing. ............................................................... 36
Section 18. Start Up............................................................................................ 37
Section 19. Sequence of Operation. .......................................................... 39
Section 20. Checkout Procedures. ............................................................. 40
Note: Representative illustrations only included in this
document. Most illustrations display the upflow configu-
ration.
3
Section 1. Safety Information
▲
WARNING
!
SAFETY HAZARD! This information is intended for use
by individuals possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central air condition-
ing product may result in personal injury and/or property damage.
The manufacturer or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability in connection
with its use.
LIVE ELECTRICAL COMPONENTS! During instal-
lation, testing, servicing, and troubleshooting of this product, it may
be necessary to work with live electrical components. Failure to fol-
low all electrical safety precautions when exposed to live electrical
components could result in death or serious injury.
▲CAUTION
!
▲
WARNING
!
CORROSION HAZARD! To prevent shortening its service
life, the air handler should not be used during the finishing phases
of construction. The low return air temperatures can lead to the
formation of condensate. Condensate in the presence of chlorides
and fluorides from paint, varnish, stains, adhesives, cleaning com-
pounds, and cement creates a corrosive condition which may cause
rapid deterioration of the cabinet and internal components.
Important: Due to the unique design of this unit, which
allows the electrical wiring to be routed within the insula-
tion, 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 accessory’s In-
staller Guide.
Important: Under no conditions should metal strapping
be attached to the unit to be used as support mecha-
nisms for carrying or suspension purposes.
SAFETY HAZARD! Sharp Edge Hazard. Be careful of sharp
edges on equipment or any cuts made on sheet metal while install-
ing or servicing. Personal injury may result.
▲CAUTION
!
▲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. Hazardous vapors can be distributed
throughout the conditioned space and equipment damage can
result.
4
Section 2. Unit Design
2.1 Cabinet Penetration
Screws can be drilled
into bottom of unit.
(1/2” max. screw length)
(Typical all sides)
Screws, saw cuts, and
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 ange 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 rst 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 punc-
ture the unit cabinet in any location other than the
ones illustrated.
Important: Under no conditions should metal strap-
ping be attached to the unit to be used as support
mechanisms for carrying or suspension purposes.
2.2 Panel Removal
The unit contains four (4) access panels: Blower/Fil-
ter, Coil, Line Set, and Heater.
The Blower/Filter panel is removed using 1/4 turn
thumb screws.
1. Turn thumb screws on Blower/Filter panel.
2. Pull top of panel out, away from cabinet.
3. Lift panel up out of channel.
4. Set aside.
5
The Coil, Line Set, and Heater panels are removed
using Phillips head screws.
#3 Size Phillips
Coil and Heater panels must be removed prior to re-
moving the Line Set panel.
To remove Coil Panel:
1. Turn screws on Coil panel.
2. Pull bottom of panel out, away from cabinet.
3. Pull panel down and out of channel.
4. Set aside.
To remove 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 refrig-
erant 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.
2. Pull panel straight out, away from cabinet.
3. Set aside.
6
Section 3. Unit Preparation
3.1 Prepare The Unit For Installation
STEP 1 - Check for damage and report promptly to
the carrier any damage found to the unit.
Note: The unit is shipped “upside-down” in the
downflow orientation and may be easiest to trans-
port to the job site in that orientation. If the unit
must be transported in a horizontal position, it must
be laid on its back (marked “REAR” on carton).
Note: After the unit is removed from the carton,
depress the Schrader valve to verify coil is pressur-
ized.
3.2 Unit Accessories
Accessory Number Description Fits Cabinet Size
BAYEAAC05BK1A Electric Heater, 5kW, Breaker, 24V Control, 1 Ph A to C
BAYEAAC05LG1A Electric Heater, 5kW, Lugs, 24V Control, 1 Ph A to C
BAYEAAC08BK1A Electric Heater, 8kW, Breaker, 24V Control, 1 Ph A to C
BAYEAAC08LG1A Electric Heater, 8kW, Lugs, 24V Control, 1 Ph A to C
BAYEAAC10BK1A Electric Heater, 10kW, Breaker, 24V Control, 1 Ph A to C
BAYEAAC10LG1A Electric Heater, 10kW, Lugs, 24V Control, 1 Ph A to C
BAYEABC15BK1A Electric Heater, 15kW, Breaker, 24V Control, 1 Ph B to C
BAYEABC20BK1A Electric Heater, 20kW, Breaker, 24V Control, 1 Ph B to C
BAYEACC25BK1A Electric Heater, 25kW, Breaker, 24V Control, 1 Ph C
BAYSUPFLGA Supply Duct Flange A A
BAYSUPFLGBA Supply Duct Flange B B
BAYSUPFLGCA Supply Duct Flange C C
BAYRETFLGAA Return Duct Flange A A
BAYRETFLGB Return Duct Flange B B
BAYRETFLGCA Return Duct Flange C C
TASB175 Plenum Stand A A
TASB215 Plenum Stand B B
TASB235 Plenum Stand C C
BAYSRKIT100A Side Return Kit A to C
BAYICSKIT01A Internal Condensate Switch Kit A to C
BAYHHKIT001A Horizontal Hanger Kit A to C
BAYUVCLK001A UVC Lights A to C
BAYLVKIT100A Low Voltage Conduit Entry Kit A to C
Table 3.2
7
Note: The unit is shipped “upside-down” in the
downflow orientation and may be easiest to transport
to the job site in that orientation. If the unit must be
transported in a horizontal position, it must be laid
on its back (marked “REAR” on carton).
Note: 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.
Section 4. Optional Cabinet Disassembly
STEP 1 - Remove all four front panels. See Section
2.2.
Blower Electrical
Connections
8
Diverter
STEP 4 - Remove airflow diverter from the bottom of
coil drain pan by gripping the plastic diverter, using
your thumbs to spread 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 3 - Slide Blower assembly out of unit using
built-in blower support channels and set aside.
Blower Support
Channel
Wiring
Connections
9
Coil Support
Channel
STEP 5 - Disconnect wires to the EEV motor and
sensors inside the coil assembly. Cut the wire ties
on those wire harnesses.
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 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.
10
1
2
STEP 8 - Lift the Coil section up and away from the
Blower section. Set aside.
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7
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