2TTB-SVN01A-EN18=AC56Dl=l

Condensing n2TTB3

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 informationpack upon completion of work.

These instructions do not cover all variations insystems nor provide for every possible contingency tobe met in connection with installation. All phases ofthis installation must comply with NATIONAL, STATEAND LOCAL CODES. Should further information bedesired or should particular problems arise which are notcovered sufficiently for the purchaser's purposes, the mattershould be referred to your installing dealer or local distributor.

A. GENERAL

This information is intended for use by individuals posses-sing adequate backgrounds of electrical and mechanicalexperience. Any attempt to repair a central air conditioningproduct may result in personal injury and or propertydamage. The manufacturer or seller cannot be responsiblefor the interpretation of this information, nor can it assumeany liability in connection with its use.

NOTICE:Trane has always recommended installing Trane approvedmatched indoor and outdoor systems.

The benefits of installing approved matched systems aremaximum efficiency, optimum performance and bestoverall system reliability.

Check for transportation damage after unit is uncrated.Report promptly, to the carrier, any damage found to the unit.

To determine the electrical power requirements of the unit,refer to the nameplate of the unit. The electrical poweravailable must agree with that listed on the nameplate.

B. LOCATION AND PREPARATIONOF THE UNIT

1. When removing unit from the pallet, notice the tabs onthe basepan. Remove tabs by cutting with a sharp tool asshown in Figure 2 (see page 2).

2. The unit should be set on a level support pad at least aslarge as the unit base pan, such as a concrete slab. If thisis not the application used please refer to applicationbulletin "Trane APB2001-02".

3. The support pad must NOT be in direct contact with anystructure. Unit must be positioned a minimum of 12"from any wall or surrounding shrubbery to insureadequate airflow. Clearance must be provided in front ofcontrol box (access panels) & any other side requiring

© 5 FT. ABOVE UNIT -- UNRESTRICTED

4,

5.

6,

7.

service access to meet National Electrical Code. Also,the unit location must be far enough away from anystructure to prevent excess roof run-off water frompouring directly on the unit. Do not locate unit(s) closeto bedroom(s).

The top discharge area must be unrestricted for at leastfive (5) feet above the unit.

When the outdoor unit is mounted on a roof, be sure theroof will support the unit's weight. Properly selectedisolation is recommended to prevent sound or vibrationtransmission to the building structure.

The maximum length of refrigerant lines from outdoor toindoor unit should NOT exceed sixty (60) feet.

If outdoor unit is mounted above the air handler, maxi-mum lift should not exceed sixty (60) f_et (suction line).If air handler is mounted above condensing unit, maxi-mum lift should not exceed sixty (60) feet (liquid line).

NOTE:Refer to "'Refrigerant Piping Software" Pub. No. 32-3312-0"(the position of the * denotes the latest revision number).

8. Locate and install indoor coil or air handler in accor-dance with instruction included with that unit.

|nsta||er's Guide

@ BASEPAN TAB REMOVAL

rREMOVE'

TABS AS

b. Isolation hangers should also be used when refriger-ant lines are run in stud spaces or enclosed ceilings.

c. Where the refrigerant lines run through a wall or sill,they should be insulated and isolated.

d. Isolate the lines from all ductwork.

D. SERVICE VALVE OPERATION

BRASS LIQUID AND GAS LiNE SERVICE VALVESThe Brass Liquid and Gas Line Service Valves are factoryshipped in the seated position to hold factory charge. Thepressure tap service port (when depressed) opens only to thefield brazing side of the valve when the valve is in the seatedposition. The liquid line valve is not a back seating valve(see WARNING below).

C. iNSTALLiNG REFRIGERANT LINES

if using existing refrigerant lines make certain that all jointsare brazed, not soldered.

Condensing units have provisions for braze connections.

Pressure taps are provided on the service valves of outdoorunit for compressor suction and liquid pressures.

The indoor end of the recommended refrigerant line sets maybe straight or with a 90 degree bend, depending upon situa-tion requirements. This should be thoroughly checked outbefore ordering refrigerant line sets.

The gas line must always be insulated.

in scroll compressor applications, dome temperatures maybe hot. Do not touch top of compressor, may cause minorto severe burning.

The units are factory charged with the system chargerequired when using fifteen (15) feet of rated connecting line.Unit nameplate charge is the same.

Final refrigerant charge adjustment is necessary. Usethe Subcooling Charging procedure on page 6 or in theoutdoor unit Service Facts.

1. Determine the most practical way to run the lines.

2. Consider types of bends to be made and space limitations.

NOTE:

Large diameter tubing will be very difficult to rebend once ithas been shaped.

3. Determine the best starting point for routing the refriger-ant tubing -- INSIDE OR OUTSIDE THE STRUCTURE.

4. Provide a pull-thru hole of sufficient size to allow bothliquid and gas lines.

5. Be sure the tubing is of sufficient length.

6. Uncoil the tubing -- do not link or dent.

7. Route the tubing making all required bends and properlysecure the tubing before making connections.

8. To prevent a noise within the building structure due tovibration transmission from the refrigerant lines, thefollowing precautions should be taken:

a. When the refrigerant lines have to be fastened to floorjoists or other framing in a structure, use isolationtype hangers.

© 2005 American Standard inc. All Rights Reserved

Extreme caution should be exercised when opening theLiquid Line Service Valve. Turn valve stem counterclock=wise only until the stem contacts the rolled edge. (SeeFigure 3) No torque is required.

BRASS GAS LINE BALL SERVICE VALVE

The Brass Gas Line Ball Service Valve is shipped in theclosed position to hold the factory refrigerant charge. Thepressure tap service port (when depressed) opens only to thefield brazing side when the valve is in the closed position.The Gas Line Ball Service Valve is full open with a 1/4 turn.See Figure 4.

BRAZING REFRIGERANT LINES1. Remove lower access cover to access service valves.

2,

3,

4.

5.

6.

Before brazing, remove plugs from external copper stubtubes. Clean internal and external surfaces of stubtubes prior to brazing.

Cut and fit tubing, minimizing the use of sharp90 ° bends.

Insulate the entire gas line and its fittings.

Do NOT allow uninsulated liquid line to come in directcontact with bare gas line.

Precautions should be taken to avoid heat damageto the pressure tap valve core during brazing. It isrecommended that the pressure tap port valvecore be removed and a wet rag wrapped aroundthe valve body.

NOTE:Use care to make sure that no moisture enters pressure tapport, while wet rag is being used.

NOTE:Precautions should be taken to avoid heat damage tobasepan during brazing. It is recommended to keep theflame directly off of the basepan.

7. Use a Dry Nitrogen Purge and Brazing Alloy withoutflux when brazing the field line to the copper factoryconnection. Flow dry nitrogen into either valve pressuretap port, thru the tubing and out the other port whilebrazing.

8. Braze using accepted good brazing techniques.

LEAK CHECK

IMPORTANT:Replace pressure tap port valve core before attaching hoses forevacuation.

18-AC56D1-1

|nsta||er's Guide

® LIQUID LINE SERVICE VALVE

ROLLED EDGE TO

CAP's,-- _ / CAPTIVATE STEM

SERVICE "_ _ /PORT -- J

LIQUID LINECONNECTION

GAS LINE SERVICE VALVE

CAP

UNIT SIDE OF

SERVICE VALVE

ROLLED EDGE TO

CAPTIVATE STEM

"*_HEX HEADED

VALVE SYSTEM

SERVICE-_,_

PORT /GAS LINE

CONNECTION

After the brazing operation of refrigerant lines to both theoutdoor and indoor unit is completed, the field brazedconnections must be checked for leaks. Pressurize throughthe service valve ports, the indoor unit and field refrigerantlines with dry nitrogen to 350-400 psi. Use soap bubbles orother leak-checking methods to see that all field joints areleak-free!Ifnot,releasepressure;then repair!

SYSTEM EVACUATION

NOTE:Since the outdoor unit has a refrigerant charge, the gas andfiquid line valves must remain closed.

1. Upon completion of leak check, evacuate the refrigerantlines and indoor coil before opening the gas and liquidline valves.

2. Attach appropriate hoses from manifold gauge to gasand liquid line pressure taps.

NOTE:Unnecessary switching of hoses can be avoided andcomplete evacuation of all lines leading to sealed systemcan be accomplished with manifold center hose andconnecting branch hose to a cylinder of HCFC=22 andvacuum pump.

3. Attach center hose of manifold gauges to vacuum pump.

4. Evacuate until the micron gauge reads no higher than350 microns.

5. Close offvalve to vacuum pump and observe the microngauge. If gauge pressure rises above 500 microns in one (1)minute, then evacuation is incomplete or system has a leak.

6. If vacuum gauge does not rise above 500 microns inone (1) minute, the evacuation should be complete.

7. With vacuum pump and micron gauge blanked off,open valve on HCFC-22 cylinder and charge refriger-ant lines and indoor coil with vapor to tank pressureof HCFC-22 supply.

8. Close valve on HCFC-22 supply cylinder. Close valveson manifold gauge set and remove refrigerant charginghoses from liquid and gas pressure tap ports.

NOTE:A 3/16"Allen wrench is required to open liquid line servicevalve. A I/4" Open End or Adjustable wrench is required toopen gas line valve. A 3/4" Open End wrench is required totake off the valve stem cap.

9.

10.

11.

12.

The liquid line shut-offvalve can now be opened. Removeshut-off valve cap. Fully insert hex wrench into the stemm_d backout counterclockwise until valve stein just touchesrolled edge (approximately five [5] turns) observingWARNING statement on page 2. See Figure 3.

Replace liquid service pressure tap port cap and valvestem cap. These caps MUST BE REPLACED toprevent leaks. Replace valve stem cap and pressure tapcap finger tight, then tighten an additional 1/6 turn.

The gas valve can now be opened. Open the gas valve byremoving the shut-offvalve cap and turning the valvestein 1/4 turn counterclockwise, using 1/4" Open End orAdjustable wrench. See Figure 4.

The gas valve is now open for refrigerant flow. Replacevalve stein cap to prevent leaks. Again, these capsMUST BE REPLACED to prevent leaks. Replace valvestem cap and pressure tap cap finger tight, then tightenan additional 1/6 turn. See Figure 4.

If refrigerant lines are longer than 15 feet and/or adiffhrent size than recommended, it will be necessary toadjust system refrigerant charge upon completion ofinstallation. See page 6 or in the unit Service Facts.

© GAS LINE BALL SERVICE VALVE

CAP _ _--_ 1/4 TURN ONLYCOUNTERCLOCKWISE

- \ \ _._///_ FOsRITFI_)LNLOPEN

UNIT SIDEOF VALVE

#

PRESSURE TAP PORT j/

GAS LINE CONNECTION

CAP _

!BODY

CORE

18-AC56D1-1 3

|nsta||er's GuideE. ELECTRICAL CONNECTIONS

When installing or servicing this equipment, ALWAYSexercise basic safety precautions to avoid the possibility ofelectric shock.

1. Power -wiring and grounding of equipment must complywith local codes.

2. Power supply must agree with equipment nameplate.

3. Install a separate disconnect switch at the outdoor unit.

4. Ground the outdoor unit per local code requirements.

5. Provide flexible electrical conduit whenever vibration

transmission may create a noise problem within thestructure.

6. The use of color coded low voltage wire is recommendedto simplify connections between the outdoor unit, thethermostat and the indoor unit.

Table 1 -- NEC Class fl Control Wiring

24 VOLTS

WIRE SIZE MAX. WIRE LENGTH

18 AWG 150 FT

16 AWG 225 FT.

14 AWG 300 FT.

7. Table i defines maximum total length of low voltagewiring from outdoor unit, to indoor unit, and to thermostat.

8. Mount the indoor thermostat in accordance with instruc-tion included with the thermostat. Wire per appropriatehook-up diagram (included in these instructions).

G. OPERATIONAL ANDCHECKOUT PROCEDURES

Final phases of this installation are the unit Operational andCheckout Procedures which are found in this instruction (seetable below and pages 6 and 8). To obtain proper perfor-mance, all units must be operated and charge adjustmentsmade in accordance with procedures found on page 6 and inthe Service Facts.

H. SEACOAST SHIELDUnits installed -within one mile of salt water, includingseacoasts and inland waterways, require the addition ofBAYSEAC001 (Seacoast Kit) at the time of installation.

IMPORTANT:See Limited Warranty information in Use and Care Manual.

I. TROUBLESHOOTINGTROUBLESHOOTING CHART -- WHAT TO CHECK

SYSTEMFAULTS

REFRIGERANT CIRCUIT

LiquidPressureTooHigh P P S P S S S

LiquidPressureTooLow P S S S S

SuctionFffesstlreTooHigh

S_ct_onPressureTooLow

LiquidRefrig_FloodbackTXVSystem

I_0_CoilFrosting

..........ELECTRICAL

F. COMPRESSOR START-UPAfter all electrical wiring is complete, SET THE THERMO-STAT SYSTEM SWITCH IN THE OFF POSITION SOCOMPRESSOR WILL NOT RUN, and apply power byclosing the system main disconnect switch. This will activatethe compressor sump heat (where used). Do not change theThermostat System Switch until power has been applied forone (1) hour. Following this procedure -will prevent potentialcompressor overload trip at the initial start-up.

P - PrimaryCauses S - S_c0ndatyCauses

CHECKOUT PROCEDURE WiTH MAiN P(

StepNo. TO CHECK

1 SumpHeat

2 IndoorFanOperation

3 CoolingOperation

4 CheckingPerformance& Charge

5 Heating@

6

Off

iNDOORTHERMOSTATSWITCHSETTING

@ @ FanSwitchCoN Heat Auto On

X X

)WER DISCONNECTS CLOSED (ON)

IndoorBlowerRuns

COMPONENTOPERATION

Compressor @ Comp. FurnaceRuns Sump Heat

Heater Comes On

X

X

X

X

I X

X

X

OutdoorFan

Runs

x x x x

x Ix I x I x xUSECHARTSATTACHEDTOO.D. UNIT

I I×1×1 Ix iInformowneron howto operatesystemandwhat to expectof it. At the sametimedeliverOwner'sUseand CareBooklet.

!

@ Also set thermostat dial to call for cooling or heating as necessary.

@ Check only necessary if heating unit is used for indoor section and wiring has been disturbed during installation of cooling equipment.

@ When applicable.

4 18-AC56D1-1

|nsta||er's Guide

TYPICAL FIELD HOOK=UP DIAGRAMS

T'STAT

E3

IR HANDLER

...... R

G

AI CONDI

...... y

ODT

TIONERVARIABLE SPEED

T'STA/ AIR HANDLER AIR CONDIIIONER

[3_3

F_q

OD A

L _2PT_?_A_ [ .F_EI4OT.E_ ..

t:7'B

PRINTEDFROMB152g01P02PRINTED FROMB}52908P03

CONNECTIONSTO BE MADE FOR OPERATION OFBLOWERW}IN HUMIDISTA] IN COOLING

T 'SIAl

NOTE

I -STAGEOR

2-STAGEFURNACE A COND FIONER

_. ..... y

/i :"_...... B

PRINTEDFROMB152g03P02

-kW2 present only on 2 stagethermostat and furnace

Notes:

1. Be sure power supply agrees with equipment nameplate.

2. Power wiring and grounding of equipment must comply with local codes.

3. Low voltage wiring to be No. 18 AWG minimum conductor.4. ODT-B must be set lower than ODT-A.

5. If outdoor thermostats (ODT) are not used, connect Wl to W2 and W3.

T 'STATVARIABLE SPEED

2 STAGE FURNACE AI ¢OND}TIO ER

r_

-.[]

[]

--_ f,...._

pq

Ol

I_1 f"_

PR N_ID FRO BIg290/P04

LEGEND

..... FACTORY WIRING

_ FIELD WIRING

18-AC56D1-1 5

|nstaIIer's GuideSUBCOOLING CHARGING iN COOLING ABOVE 55°F OD AMBIENT

The Trane company has always recommended installingTrane approved matched indoor and outdoor systems.

All 13 SEER Trane split systems are ARI rated with onlyTXV indoor systems.

The benefits of installing approved indoor and outdoor splitsystems are maximum efficiency, optimum performance andthe best overall system reliability.

The following charging methods are therefore prescribed forsystems with indoor TXVs.

1. Subcooling (in the cooling mode) is the _ recommendedmethod of charging above 55°F ambient temperatures.

2. For best results - the indoor temperature should be keptbetween 70°F to 80°F. Add system heat if needed.

3. At start-up, or whenever charge is removed or added, thesystem must be operated for a minimum 20 minutes tostabilize before accurate measurements can be made.

4. Measure Liquid Line Temperature and RefrigerantPressure at service valves.

5. Determine total refrigerant line length, and height (lift)if indoor section is above the condenser.

6. Determine the Design Subcool Charging Temperaturefrom the unit nameplate.

7. Locate this value in the appropriate column of theSubcooling Charging Table. Locate your liquid linetemperature in the left column of the table, and theintersecting liquid line pressure under your nameplatesubcool value column. Add refrigerant to raise the pres-sure to match the table, or remove refrigerant to lowerthe pressure. Again, wait 20 minutes for the systemconditions to stabilize before adjusting charge again.

8. When system is correctly charged, you can refer toSystem Pressure Curves (in Service Facts) to verifytypical performance.

R-22 SUBCOOLING CHARGING TABLE

DESIGN SUBCOOLING VALUES (°F)LIQUIDTEMP. 8 10 12 14

(°F) LIC,UID LINE PRESSURE (psi)

45 89 93 96 100

50 98 102 105 109

55 107 111 115 119

60 117 121 126 130

65 128 132 137 141

70 139 144 148 153

75 151 156 161 166

80 163 168 174 179

85 176 182 187 193

90 190 196 202 208

95 205 211 217 223

100 220 226 233 239

105 236 243 249 256

110 253 260 267 274

115 271 278 285 293

120 289 297 305 313

125 309 317 325 333

SUBCOOL CHARGING TABLE CORRECTIONS FOR LINE LENGTH AND RISE

6O

I-.- _ 50Z LU 40< m 30

25(_ d 20

rr-5

Table Pressure

10

0 _ubtrac[__s!gItem s:_: r@!e _ressure

10 20 25 30 40 60 80

TOTAL REFRIGERANT LINE LENGTH (FEET)

6 18-AC56D1-1

|nsta||er's Guide

SER, CE _;,,IEL

.... u , , d B 1,4( ,'"q 0/ :/I C[ _RA1'( SPFR PREVA :/{1 CLODS

2TTB3 OUTLINE DRAWINGNOTE: ALL DIMENSIONS ARE IN IVllVl(INCHES).

lOP DISCIARG AREASIOL BuNRrsFR CIED FORA L ASI i574 (5 PE }

ABOV UN ; JN I SOI_} B_ PLACE,',SORO0;RU!,,Of WA' R DOS SO POURD RC LY ON UNI:,

A_,,I}5HO[LDE A I AS] 305 (i ' FROqWAL A"/I}A [ SURRO_,kD:/6 SiRUBBERY0"{ I,_'OSII}[S

OTJ R TWOSJDS ;JRRSTRC FD

MODELS BASE FIG.

2TTB3018A 2 2

2TTB3024A 2 2

2TTB3030A 3 2

2TTB3036A 3 2

2TTB3042A 4 1

2TTB3048A 4 1

2TTB3060A 4 1

IJOglD LiNE SERViCF VALVE,:'F"IB FEMA[F BRAZEDCOHNECIION WliH i/4" SAt FLAREPRESSURE lAP FITIIN6

H

J

G

FIG.1

" G,,S I1' '/4 1821' BI,{L S:i,, C ,,_/Li , ':}I ," E_vlAE BRi:'Z[ COI'JqECI01' 1'4' S_!'I,r_R PR SXJR I,t,R I ] I,J(

GJ

lINE S}RVICE VAI VE,_D" iD FEMALE BRATEDCONNECFiON WIll1 i/4' SAE FLAREPRESSORE iAP FIT[IN6

FIG. 2

A

651 (25-5/8)

832 (32-3/4)

832 (32-3/4)

832 (32-3/4)

841 (33-1/8)

1045 (41-1/8)

1045 (41-1/8)

B

724 (28-1/2)

724 (28-1/2)

829 (32-5/8)

829 (32-5/8)

946 (37-1/4)

946 (37-1/4)

946 (37-1/4)

C D E F G

651 (25-5/8) 5/8 1/4 127 (5) 57 (2-1/4)

651 (25-5/8) 3/4 5/16 137 (5-3/8) 65 (2-5/8)

756 (29-3/4) 3/4 5/16 137 (5-3/8) 86 (8-8/8)

756 (29-3/4) 7/8 3/8 137 (5-3/8) 86 (8-8/8)

870 (34-1/4) 7/8 3/8 152 (6) 98 (3-7/8)

870 (34-1/4) 1-1/8 3/8 152 (6) 98 (3-7/8)

870 (34-1/4) 1-1/8 3/8 152 (6) 98 (3-7/8)

H

181 (7-1/8)

210 (8-1/4)

210 (8-1/4)

210 (8-1/4)

219 (8-5/8)

219 (8-5/8)

219 (8-5/8)

J K

44 (1-3/4) 457 (18)

57 (2-1/4) 457 (18)

79 (3-1/8) 508 (20)

79 (3-1/8) 508 (20)

86 (3-3/8) 508 (20)

86 (3-3/8) 508 (20)

86 (3-3/8) 508 (20)

From Dwg. 21D153074 Rev. 10

18-AC56D1-1 7

|nsta||eCs Guide

MOUNTING HOLE LOCATION

, !%

% C

_26s" ',It 43}_

fi_ ...................398 ii5 6,_ .................

_5i? (20 3,1'_

Note: All dimensions are in IVllVl(Inches).

609 (2399

0 8)

BASE 2

3ii (i2 48) i

81} (8 39:,

............

33,(3 9)l" }22 (8 9',

If f

} 0 (i_ 80} ......

=

2......................................599 ,:83 58} ...........................................

..........................................................iSi (28 64} ...................................................

...........i58 (6 241

)'95 (}1 28}

£}' (8 24}

_Pg, 1[ 56)_

_y i(64,

J (23 581

BASE3

BASE 4

NOTE:For model base size,see table on page 7.

From Dwg. 21D152989 Rev. 1

CHECKOUT PROCEDURE

After installation has been completed, it is recommended that the entire system be checked against the following list:

1. Refrigerant Line, Leak checked .................................. [ ]

2. Suction Lines and Fittings properly insulated ........... [ ]

3. Have all Refrigerant Lines been secured andisolated properly? ........................................................ [

4. Have passages through masonry been sealed?If mortar is used, prevent mortar from coininginto direct contact with copper tubing ........................ [

5, Verify tightness of all electrical connects ................... [

6, Observe outdoor fan during on cycle for clearanceand smooth operation .................................................. [

l

l

8, Supply registers and return grilles open andunobstructed ................................................................ [ ]

9. Return air filter installed ............................................ [ ]

10. Thermostat thermometer is accurate. Checkagainst a reliable thermometer. Adjust perinstructions with thermostat ...................................... [ ]

11. Is correct speed tap being used?(Indoor blower motor) .................................................. [ ]

12. Operate complete system in each mode toinsure safe operation ................................................... [ ]

7, Indoor coil drain line drains freely. Pour waterinto drain pan .............................................................. [

Trane

A business of

American Standard Companieswww.trane.com

Trane has a policy of continuous product and product data improvement and it reserves the right to change

design and specifications without notice.

P.I. 9/05