TRANE Air Conditioner/heat Pump(outside Unit) Manual L0903228

User Manual: TRANE TRANE Air conditioner/heat pump(outside unit) Manual TRANE Air conditioner/heat pump(outside unit) Owner's Manual, TRANE Air conditioner/heat pump(outside unit) installation guides

Open the PDF directly: View PDF .
Page Count: 8

Download
Open PDF In Browser	View PDF

2TTBO-IN-2
18-AC52D1-2

Condensing Un
2TTB0 & 23-[B2
ALL phases

of this installation

IMPORTANT
-- This Document
pack upon completion of work.

must

comply

is customer

with

NATIONAL,

property

STATE

and is to remain

These instructions
do not cover all variations
in
systems
nor provide
for every possible
contingency
to
be met in connection
with installation.
All phases
of
this installation
must comply with NATIONAL,
STATE
AND LOCAL CODES.
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.

AND LOCAL

with this unit.

CODES
Please

return

to service

information

5 FT. ABOVE UNff=UNRESTRICTED

A. GENERAL
The following instructions
ing Units.

cover 2TTB0 & 2TTB2; Condens-

NOTICE:
These outdoor units may be used with indoor units
equipped with Thermostatic Expansion Valve or Accutron rM
Flow Control Check Valve (E C.C. V) assembly for refrigerant
flow control only.
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 power
available must agree with that listed on the nameplate.

B. LOCATION

& PREPARATION

1. When removing unit from the pallet,
the basepan. Remove tabs by cutting
shown in Figure 2 (see page 2).

OFTHE

UNIT

notice the tabs on
with a sharp tool as

2. The unit should be set on a level support pad at least as
large as the unit base pan, such as a concrete slab. If this
is not the application
used please refer to application
bulletin "Trane APB2001-02".
3. The support pad must NOT be in direct contact with any
structure.
Unit must be positioned a minimum of 12"
from any wall or surrounding
shrubbery to insure
adequate airflow. Clearance must be provided in front of
control box (access panels) & any other side requiring
service access to meet National Electrical Code. Also,
the unit location must be far enough away from any
structure
to prevent excess roof run-off water from
pouring directly on the unit. Do not locate unit(s) close to
bedroom(s).
4. The top discharge area must be unrestricted
five (5) feet above the unit.

for at least

5,

When the outdoor unit is mounted on a roof, be sure the
roof will support the unit's weight. Properly selected
isolation is recommended
to prevent sound or vibration
transmission
to the building structure.

6,

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

to

7. If outdoor unit is mounted above the air handler, maximum lift should not exceed sixty (60) f_et (suction line).
If air handler is mounted above condensing unit, maximum lift should not exceed sixty (60) feet (liquid line).
NOTE:
Refer to "Refrigerant

Piping Software"

Pub. No. 32=3312=02.

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

|nsta||er's

@

Guide

BASEPAN TAB REMOVAL

4.

Provide a pull-thru hole of sufficient
liquid and gas lines.

5.

Be sure the tubing

6. Uncoil the tubing

is of sufficient

size to allow both

length.

--- do not kink or dent.

7. Route the tubing making all required bends and
properly secure the tubing before making connections.
8.

To prevent a noise within the building structure
due to
vibration transmission
from the refrigerant
lines, the
following precautions
should be taken:
a. When the refrigerant
lines have to be fastened to floor
joists or other framing in a structure, use isolation
type hangers.

C. ACCUTRON

TM

FLOW CONTROL

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

VALVE

If the indoor unit System Refrigerant
Flow control is an
Accutron TM orifice and check valve assembly, an orifice size
change may be necessary. See Figure 3.
The outdoor model determines
the required orifice size.
Check the listed orifice size on nameplate
of the selected
outdoor model. If the indoor unit is factory shipped with a
diffhrent orifice size, the orifice must be changed to obtain
system rated performance.
iMPORTANT:
The outdoor unit is shipped with the proper size orifice and a
stick-on orifice size label in an envelope attached to the outdoor
unit. Outdoor unit nameplate will have correct orifice size
specified as BAYFCCV---A for rated performance.

D. INSTALLING

REFRIGERANT

if using existing refrigerant
are brazed, not soldered.
Condensing

units

LINES

lines make certain that all joints

have provisions

for braze connections.

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

of outdoor

The indoor end of the recommended
refrigerant
line sets may
be straight or with a 90 degree bend, depending upon
situation requirements°
This should be thoroughly checked
out before ordering refrigerant
line sets.
The gas line must always be insulated.

c. Where the refrigerant
lines run through
they should be insulated
and isolated.
d. Isolate the lines from all ductwork.

E. SERVICE VALVE OPERATION
BRASS LIQUID AND GAS LINE SERVICE VALVES
The Brass Liquid and Gas Line Service Valves are factory
shipped in the seated position to hold factory charge. The
pressure tap service port (when depressed) opens only to the
field brazing side of the valve when the valve is in the seated
position. The liquid line valve is not a back seating valve
(see WARNING
below).

Extreme caution should be exercised when opening the
Liquid Line Service Valve. Turn valve stem counterclock=
wise only until the stem contacts the rolled edge. (See
Figure 4) No torque is required.
BRASS GAS LiNE BALL SERVICE VALVE
The Brass Gas Line Ball Service Valve is shipped in the
closed position to hold the factory refrigerant
charge. The
pressure tap service port (when depressed) opens only to the
field 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 5.
BRAZING REFRIGERANT LINES
1. Remove lower access cover to access service valves.
2. Before brazing, remove plugs from external copper stub
tubes. Clean internal and external surfaces of stub
tubes prior to brazing.

In scroll compressor applications, dome temperatures may
be hot. Do not touch top of compressor, may cause minor
to severe burning.

®

BRAZE

TYPE iNDOOR

END

SEALING

The units are factory charged with the system charge
required when using fifteen (15) feet of connecting line.
nameplate
charge is the same.
Final refrigerant
charge
adjustment
is necessary.
the Charging Charts in the outdoor unit Service Facts.
1. Determine
2. Consider

the most practical

ACOUTRON

Use

types of bends to be made and space limitations.

to rebend once #

3. Determine the best starting point for routing the refrigerant tubing- -INSIDE OR OUTSIDE THE STRUCTURE.
© 2003 American Standard inc. All Rights Reserved

CAP

TM

Unit

way to run the lines.

NOTE:
Large diameter tubing will be very difficult
has been shaped.

a wall or sill,

C%v"°L

£
AS SHIP_PE i __L

_

LIQUID

LINE

FIELD SUPPLIED

18-AC52D1-2

|nsta||er's

©

LIQUID LINE SERVICE VALVE

Guide

GAS LiNE SERVICE VALVE
ROLLED EDGE TO
CAPTIVATE STEM

ROLLED EDGE TO
CAPTIVATE
STEM
CAP-_=--

CAP'_

_-_./
_,..a..._

sdv"g
s,oE
oF
SERVICE
PORT

_

.EX
.EADgEM
_

HEADED
VALVE SYSTEM

SERVICE
PORT

/
--

_HEX

UNIT SIDE OF
SERVICE VALVE

/

/

LIQUID LINE
CONNECTION

3. Cut and fit tubing, minimizing
4. Insulate

GAS LINE
CONNECTION

the use of sharp 90 ° bends.

the entire gas line and its fittings.

5. Do NOT allow uninsulated
contact with bare gas line.

liquid line to come in direct

6. Precautions
should be taken to avoid heat damage
to the pressure
tap valve core during
brazing.
It
is recommended
that the pressure
tap port valve
core be removed
and a wet rag wrapped
around
the valve body.
NOTICE:
Use care to make sure that no moisture
port, while wet rag is being used.

enters pressure

7. Use a Dry Nitrogen Purge and Brazing Alloy without flux
when brazing the field line to the copper factory connection. Flow dry nitrogen into either valve pressure tap
port, thru the tubing and out the other port while brazing.
good brazing

3. Attach center

techniques.

IMPORTANT:
Replace pressure tap port valve core before attaching hoses for
evacuation.
After the brazing operation of refrigerant
lines to both the
outdoor and indoor unit is completed, the field brazed
connections must be checked for leaks. Pressurize
through
the service valve ports, the indoor unit and field refrigerant
lines with dry nitrogen to 350-400 psi. Use soap bubbles or
other leak-checking
methods to see that all field joints are
leak-free! If not, release
pressure;
then repair!

hose of manifold

gauges to vacuum

4. Evacuate until the micron gauge reads
350 microns.

no higher

pump.
than

5,

Close off valve to vacuum pump and observe the micron
gauge. 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
(1) minute, the evacuation
should be complete.

tap

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

8. Braze using accepted
LEAK CHECK

NOTE:
Unnecessary switching of hoses can be avoided and
complete evacuation of all lines leading to sealed system
can be accomplished
with manifold center hose and
connecting branch hose to a cylinder of HCFC=22 and
vacuum pump.

in one

7. With vacuum pump and micron gauge blanked off; open
valve on HCFC-22 cylinder and charge refrigerant
lines
and indoor coil with vapor to tank pressure of HCFC-22
supply.
NOTE:
DO NOT VENT REFRIGERANT

INTO THE ATMOSPHERE.

8. Close valve on HCFC-22
supply cylinder. Close valves
on manifold gauge set and remove refrigerant
charging
hoses from liquid and gas pressure tap ports.
GAS LiNE BALL

SERVICE

114 TURN
ONLY
COUNTERCLOCKWISE
FOR FULL
OPEN

CAP

UNIT

VALVE

SIDE

OF VALVE

#
PRESSURE

TAP

PORT
/

SYSTEM EVACUATION
NOTE:
Since the outdoor unit has a refrigerant
liquid line valves must remain closed.

GAS

LINE

CONNECTION

charge, the gas and
CAP

_

1. Upon completion of leak check, evacuate the refrigerant
lines and indoor coil before opening the gas and liquid
line valves.
2. Attach appropriate
hoses from manifold
and liquid line pressure taps.
18-AC52D1-2

gauge to gas

3

|nsta||er's

Guide

NOTE:
A 3/16" Allen wrench is required to open liquid line service
valve. A 1/4" Open End or Adjustable wrench is required
to open gas line valve. A 3/4" Open End wrench is required
to take off the valve stem cap.

9. The liquid line shut-offvalve can now be opened. Remove
shut-off valve cap. Fully insert hex wrench into the stem
and backout counte.rclockwise until valve stem just touches
rolled edge (approximately five [5] turns) observing
WARNING statement on page 2. See Figure 4.
10. Replace liquid service pressure tap port cap and valve
stem cap. These caps MIJST BE REPLACED to
prevent leaks. Replace valve stem cap and pressure tap
cap finger tight, then tighten an additional 116turn.

8. Mount the indoor thermostat
in accordance with instruction included with the thermostat.
Wire per appropriate
hook-up diagram (included in these instructions).

G. COMPRESSOR

START UP

After all electrieal wiring is complete, SET THE THERMOSTAT SYSTEM SWITCH IN THE OFF POSITION SO
COMPRESSOR
WILL NOT RUN, and apply power by closing
the system main disconnect switch. This will activate the
compressor
sump heat (where used). Do not change the
Thermostat
System Switch until power has been applied for
one (1) hour. Following this procedure will prevent potential
compressor overload trip at the initial start-up.

H. OPERATIONAL
PROCEDURES

AND CHECKOUT

11. The gas valve can now be opened. For a ball type gas
valve, open the gas valve by removing the shut-off'valve
cap and turning the valve stem 1/4 turn counterclockwise, using 1/4" Open End or Adjustable wrench. See
Figure 5. For brass gas line service valve opening, follow
9 and 10 above. See Figure 4.

Final phases of this installation
are the unit Operational
and
Checkout Procedures which are found in this instruction
(see
page 8). To obtain proper performance,
all units must be
operated and charge adjustments
made in accordance with
procedures found in the Service Facts.

12. The gas valve is now open for refrigerant flow. Replace
valve stein cap to prevent leaks. Again, these caps
MUST BE REPLACED to prevent leaks. Replace valve
stem cap and pressure tap cap finger tight, then tighten
an additional 116turn. See Figure 5.

Electric heaters, if used, are to be installed in the air handling device according to the instructions
accompanying
the
air handler and the heaters.

If refrigerant lines are longer than 15 feet and/or a
diffhrent size than recommended, it will be necessary to
adjust system refrigerant charge upon completion of
installation. See unit Service Facts.

F. ELECTRICAL

CONNECTIONS

I. ELECTRIC

J. START CONTROL
Some models have quick start components which are factory
installed. For models that do not have factory installed start
components,
provisions are made for a field installed start kit
accessory. When adding an accessory, follow the instructions
provided with the kit.

K. OUTDOOR
When installing or servicing this equipment, ALWAYS
exercise basic safety precautions to avoid the possibility of
electric shock.
1. Power -wiring and grounding
with local codes.

of equipment

2. Power supply must agree with equipment
3. Install
4. Ground

a separate
the outdoor

disconnect

switch

must comply
nameplate.

at the outdoor

unit.

unit per local code requirements.

5. Provide flexible electrical conduit whenever vibration
transmission
may create a noise problem within the
structure.
6. The use of color coded low voltage wire is recommended
to simplify connections between the outdoor unit, the
thermostat
and the indoor unit.

HEATERS

THERMOSTAT

An outdoor thermostat
TAYSTAT250B may be field installed.
For data, see wiring diagram attached to unit and instruction
sheet packaged with outdoor thermostat.

L. SEACOAST

SHIELD

BAYSEAC001 (Seacoast Kit) is available for application
units installed -within one mile of salt water, including
seacoasts and inland waterways.

on

M. TROUBLESHOOTING
TROUBLESHOOTING

CHART -- WHAT TO CHECK

SYSTEMFAULTS

Table 1 -- NEC Class II Control Wiring

24 VOLTS
WIRE SIZE

MAX. WIRE LENGTH

18 AWG

150 FT

16 AWG

225 FT.

14 AWG

300 FT.

Compressor
&OD FanDoNotStart

7. Table 1 defines maximum total length of low voltage
wiring from outdoor unit, to indoor unit, and to thermostat.
P- PrimaryCauses S-SecondaryCauses

4

18-AC52D 1-2

|nstal|er's
TYPICAL

Guide

FIELD HOOK=UP DIAGRAMS

'STAT

A FRANDL

R

AIR CONDIT ONER

_- ..... R

fi
_ ....

......

G

y

ODT

_i ....w2
....

W3

PRINTEDFROMB152901P02

ISFAGE
OR
2-STAGE
FURNACE

'STAT

AIR

CONDITIONER

E]

.....

y

I4

NOTE

J_

...... B

PRINTED FROM B152903 P02
-kW2 present only on 2 stage
thermostat and furnace
Notes:

LEGEND

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.

.....

FACTORY WIRING

5. If outdoor thermostats

_

FIELD WIRING

18-AC52D1-2

(ODT)

are not used, connect Wl to W2 and W3.

5

|nsta||er's

Guide
2TTB0 & 2TTB2 OUTLINE
Note: All dimensions

SE

/i¢

'J I(}IRiC:',L
¢or4PONENT

P_

DRAWING

are in IVllVl(Inches).

F ..........................

,'_
iF
IOIRA
CL EAR,NOES

i
UNIT SiiOULB, BE PLACED SO ROOF
RUN OfF WAI_R DOES NOT POUR 9iRECYL¥
ON UNi_,
AND $_()[J[D iiE £r [EAS_
305 (12}
F_ON WAIL £ND
Ati
SURROUNDING SIiRUBBERY ON tWO SIDES
OTii_
TWO SIDES UNREStRiCteD
....................

i

T

o

Ei{{]iRICAi
P,_NE{

I { SSUR(
222

(?/8)

T

F I T[

#(

DiA
ii01 E
[OW VOklAGE

28 6 (I
i18)
DiA
K O
22 2 (i/8}
D[A
iiO[E
iN ¢ONIROL
_OX BOTTOM FOR _{ECTRICA_
POWER SUPPLY

OUiD

,{

SE:_7 CE _i,I rE,

¢C,!iNi¢]iON
WlIN
i,4
Ft,:,RE PRESSURE _,?

¸¸ SA_
F IJlI_G

M
F{

I

FIG. 1

J
G

\
\
'_6AS
[iNE
/4 IURN BAiL
S_RVJOE VAiVE,
'=D"
i O FEMALE BRAZED ¢ONNi[C[ION
Wi[ii
1/4
SA[
FLA_E II_ESSURE
£
fill
k_:

D

E

F

G

H

J

K

2TTBOO30A

2

2

651

(25-5/8)

724

(28-1/2)

651

(25-5/8)

3/4

5/16

127 (5)

57 (2 1/4)

181 (7-1/8)

44 (1-3/4)

457 (18)

2TTBOO36A

2

2

651

(25-5/8)

724

(28-1/2)

651

(25-5/8)

7/8

3/8

127 (5)

57 (2-1/4)

181 (7-1/8)

44 (1-3/4)

457 (18)

2TTBOO42A

2

2

730

(28-3/4)

724

(28-1/2)

651 (25-5/8)

7/8

3/8

137 (5-3/8)

65 (2-5/8)

210 (8-1/4)

57 (2-1/4)

457 (18)

2TTBOO48A

2

2

730

(28-3/4)

724

(28-1/2)

651(25-5/8)

1-1/8

3/8

137 (5-3/8)

65 (2-5/8)

210 (8-1/4)

57 (2-1/4)

457 (18)

2TTBOO60A

3

1

832

(32-3/4)

829

(32-5/8)

756

1-1/8

3/8

143 (5-5/8)

92 (3-5/8)

210 (8-1/4)

79 (3-1/8)

508 (20)

2TTB2018A

2

2

651

(25-5/8)

724

(28-1/2)

651 (25-5/8)

5/8

1/4

127 (5)

57 (2-1/4)

181 (7-1/8)

44 (1-3/4)

457 (18)

2TTB2024A

2

2

730

(28-3/4)

724

(28-1/2)

651 (25-5/8)

3/4

5/16

137 (5-3/8)

65 (2-5/8)

210 (8-1/4)

57 (2-1/4)

457 (18)

2TTB2030A

2

2

730

(28-3/4)

724

(28-1/2)

651 (25-5/8)

3/4

5/16

137 (5-3/8)

65 (2-5/8)

210 (8-1/4)

57 (2-1/4)

457 (18)

2TTB2036A

2

2

832

(32-3/4)

724

(28-1/2)

651(25-5/8)

7/8

3/8

137 (5-3/8)

65 (2-5/8)

210 (8-1/4)

57 (2-1/4)

457 (18)

2TTB2042A

3

2

832

(32-3/4)

829

(32-5/8)

756

(29-3/4)

7/8

3/8

137 (5-3/8)

86 (3-3/8)

210 (8-1/4)

79 (3-1/8)

508 (20)

2TTB2048A

3

1

933

(36-3/4)

829

(32-5/8)

756

(29-3/4)

1-1/8

3/8

143 (5-5/8)

92 (3-5/8)

210 (8-1/4)

79 (3-1/8)

508 (20)

2TTB2060A

3

1

933

(36-3/4)

829

(32-5/8)

756

(29-3/4)

1-1/8

3/8

143 (5-5/8)

92 (3-5/8)

210 (8-1/4)

79 (3-1/8)

508 (20)

MODELS

BASE

FIG.

B

A

C

(29-3/4)

From Dwg. 21 D153074

6

Rev. 5

18-AC52D

1-2

|nstal|er's
MOUNTING

Guide

HOLE LOCATION

Note: All dimensions are in IVllVl(Inches).

265

(10.43)

_1

523

3_7

(20.58)

( 2,49)
2O5 (8.0Y)

517

(20,34)

BASE 2

I

294

I 56)

!

171 (6.74)

688

599 (23

NOTE: For model base size,
see table on page 6.
18-AC52D1-2

(2709)

58)

BASE 3
From Dwg. 21 D152637

Rev. 1

7

|nsta||er's

Guide
CHECKOUT

After installation
1. Refrigerant
2. Suction

has been completed,
Line, Leak checked

Lines and Fittings

it is recommended

that

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

properly

insulated

...........

3. Have all Refrigerant
Lines been secured and
isolated properly? ........................................................

]

[

]

[

[

5. Verify tightness

[

connects

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

6. Observe outdoor fan during on cycle for clearance
and smooth operation
.................................................

[

7. Indoor coil drain line drains freely. Pour water
into drain pan ..............................................................

[

CHECKOUT

PROCEDUREWITH

the entire

[

4. Have passages through masonry been sealed?
If mortar is used, prevent mortar from coining
into direct contact with copper tubing ........................
of all electrical

PROCEDURE

]
]

system be checked

1

TO CHECK

@
CoN

Off

@
Heat

[

]

9. Return

[

]

10. Thermostat
thermometer
is accurate. Check
against a reliable thermometer.
Adjust per
instructions
with thermostat
......................................

air filter installed

2

Indoor Fan Operation

3

Cooling Operation

4

Checking Performance
& Charge

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

[

]

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

[

]

12. Operate complete system in each mode to
insure safe operation ...................................................

[

]

MAiN P( )WER DISCONNECTS

CLOSED

(ON)

COMPONENTOPERATION

Outdoor
Fan
Runs

indoor
Blower
Runs

Fan Switch
Auto
On

X

Sump Heat

the following list:

8. Supply registers and return grilles open and
unobstructed
...............................................................

iNDOOR THERMOSTAT
SWITCH SETTING
Step
No.

against

Compressor
Runs

@ Comp.
Sump
Heater

X

X

x
x

I

x

x

Ix

Furnace
Heat
Comes On

X

x

Ix

I

x

I

x

x

X

x

x

X

USECHARTSATTACHEDTO O.D. UNiT

Ix!xl

! x I

I

5

Heating @

6

Informowner on howto operatesystem andwhat to expectof it. At the same time deliverOwner'sUseand Care Booklet.

Ix

Ix

D,

@ 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.

C

Trane
A business

Literature Order Number

2TTBO-IN-2

File Number

SV-UN-S/S-2TTBO-IN-2

RI.

Supersedes

New

Stocking Location

PI Louisville & Webb/Mason-Houston

2/03

of

American Standard Companies
www.trane.com

Trane has a policy of continuous product and product data improvement
design and specifications without notice.

and it reserves the right to change



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 8
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 4, 0, 0, 13
Create Date                     : Mon Mar 23 04:18:18 2009
Author                          : 
Title                           : 
Subject                         : 

EXIF Metadata provided by EXIF.tools