TRANE Air Conditioner/heat Pump(outside Unit) Manual L0903229

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

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18-AC52D5-1

Condensing Un
2TTB0530-536M
ALL phases

of this installation

IMPORTANT
-- This Document
pack upon completion of work.

must

comply

is customer

with

& 2TTB0524-536AA

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 UNIT=UNRESTRICTED

A. GENERAL
The following instructions

cover 2TTB05; Condensing

Units.

NOTE:
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 eighty (80) feet.

to

7. If outdoor unit is mounted above the air handler, maximum lift should not exceed sixty (60) fhet (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
b. Isolation hangers should also be used -when refrigerant lines are run in stud spaces or enclosed ceilings.

@

c. Where the refrigerant
lines run through
they should be insulated
and isolated.

a wall or sill,

d. Isolate the lines from all ductwork.

E. SERVICE VALVE OPERATION

C. ACCUTRON

TM

FLOW CONTROL

VALVE

If the indoor unit System Refrigerant
Flow control is an
Aceutron 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
different 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 un# nameplate will have correct orifice size
specified as BAYFCCV---A for rated performance.

D. INSTALLING
Condensing

units

REFRIGERANT

have provisions

The gas line must always be insulated.
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.

2. Consider

FLARE FITTINGS
1. Remove gas and liquid line flare nuts from service
valves and discard copper caps.
2,

Cut and fit tubing minimizing
the use of sharp 90 degree
bends, for a even flare it is recommended
that a tube
cutter be used. A hacksaw should not be used to cut the
tubing.

3,

Remove any burrs from the inside edge of copper tubes
with a deburring tool or knife.

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 most practical

Extreme caution should be exercised when opening the
Liquid Line Service Valve. Turn valve stem counterclockwise only until the stem contacts the rolled edge. (See
Figure 4) No torque is required.

LINES

for flare connections.

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

1. Determine

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 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).

Prior to assembling the
faces for the following:
a. Thinning

Use

types of bends to be made and space limitations.

to rebend once it

before flaring

tube

5. Flare the tube ends using a rotating flaring tool or
compression
type. Tube flare cone and flare tool should
be well lubricated
with refrigeration
oil while it is being
formed.
6,

Unit

way to run the lines.

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

4. Place the flare nuts on copper tubes
ends. See Figure 5.

flares, check the mating

sur-

of the flare tube material.

b. Cracked

or split tube.

c. Scoring

or longitudinal

tool marks.

d. Contamination.
e. Surface

®

roughness
BRAZE

or deformation.
TYPE iNDOOR

END

SEALING

CAP

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

s SN

[_

LIQUID LINE
FIELD SUPPLIED

18-AC52D5-1

|nstaIIer's
4.

SERVICE VALVE

cAP

L,

6.
LIQUIDUNE
\

\

:)ISCARD

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

CAP

NOTE:
DO NOT VENT REFRIGERANT

SUCTION

NOTE:
If any of these conditions are observed,
tive and must be replaced.
7. The mating faces of the fitting
with no lateral or longitudinal

LINE

j

the part is defec-

should be joined squarely,
strain on the fitting.

per the values on the outline

10. Flared joints are not field repairable.
If any damage is
found, that portion must be cut from the tubing and the
flare remade.
LEAK CHECK
IMPORTANT:
Replace pressure tap port valve core before attaching hoses for
evacuation.
After the installing of refrigerant
lines to both the outdoor
and indoor unit is completed, the field 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!
SYSTEM EVACUATION
NOTE:
Since the outdoor unit has a refrigerant
liquid line valves must remain closed.

2. Attach appropriate
hoses from manifold
and liquid line pressure taps.

18-AC52D5-1

9. The liquid line shut-off valve can now be opened. Remove
shut-off valve cap. Fully insert hex wrench into the stein
m_d backout coun_rclockwise
until valve s_m 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 MUST BE REPLACED
to
prevent leaks. Replace valve stem cap and pressure tap
cap finger tight, then tighten an additional
1/6 turn.
11. The gas valve can now be opened. For a ball type gas
valve, open the gas valve by removing the shut-offvalve
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.
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
1/6 turn. See Figure 5.
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.

FLARED

TUBE

PLACED NUT ON
TUBE BEFORE

gauge to gas

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.
hose of manifold

NOTE:
A 3/16" Allen wrench is required to open liquid line service
valve. A I/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.

charge, the gas and

1. Upon completion of leak check, evacuate the refrigerant
lines and indoor coil before opening the gas and liquid
line valves.

center

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.

9. When tightening the flare joints two wrenches must be
used. The fitting must be securely supported by the
stationary wrench.

3. Attach

than

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.

EDGE
STEM

8. The nut should be torqued
drawing (page 6).

no higher

5. Close off valve to vacuum pump and observe the micron
gauge. If gauge pressure rises above 500 microns in one (1)
minuS, then evacuation is incomple_ or sys_m has a leak.

L

ROLLED
TO CAPTURE

Evacuate until the micron gauge reads
350 microns.

Guide

gauges to vacuum

90°

_

.09 TYR
FLAT

pump.
3

|nsta||er's

Guide

F. ELECTRICAL

CONNECTIONS

J. START CONTROL

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

a separate

disconnect

switch

must comply
nameplate.

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

G. COMPRESSOR

K. OUTDOOR

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

START UP

After all electrical 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

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.

SYSTEMFAULTS

REFRIGERANT
CbRCUIT

AND CHECKOUT
ELECTRICAL

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.

I. ELECTRIC

HEATERS

P-Prim_r¢ C_us_s

S-Sec0nd_ry Causes

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

4

18-AC52D5-1

|nsta||er's
TYPICAL FIELD HOOK-UP DIAGRAM
FOR 2TTB0524-536 WiTH A 230V CONTACTOR

Guide

COiL

TO POWER SUPPLY
230/I/50
230/I/60

NDOOR JNT

%

OUTDOOR

UNIt

1

SEE INDOOR UN T
DIAGRAM FOR
¢'C
CONNFC]ION
MARK N_x::/

\

\

\

_230

VAC CONTROL WIRING
FROM OUTDOOR UNIT

TO POWER SUPPLY
230/I/50
230/I/80

Notes:

LEGEND

1. Be sure power supply agrees with equipment nameplate.
2. Power wiring and grounding of equipment must comply with local codes.
3. Use copper conductors

only.

.....

FACTORY WIRING

_

FIELD WIRING

From Dwg. 21 B1,51071 Rev. 0

18-AC52D5-1

5

|nsta||er's

Guide
2TTB05 OUTLINE

DRAWING

Note: All dimensions are in IVllVl(inches).

FLARE

SFRVICE

NUT TORQUE

PAN_i

_LECIRICAL
A_O tE_RIG[RATiO_
¢OMPONEN_ CLEARANCLS
PER PREVAILING
CODFS

lOP 5iS(}HARGE A
A S ()ULD ;_E
UNRES R CTED FOR AT EASY
i524
{5 i)
ABOVE UNi;
UNJi SIIOULD IE PLACE[} SO ROOF
_UN OFF wArE£
')OES NOI PO_
I)JRECILY
ON ii_i],
ANi} SIIOUiD I_ AI LEASI 30D (12 ¸¸) FJ_OM WAiL ANi)
AJ[
SUR!OS_SJNG
SHRUBB-I¥
O_ YWO Sii)_S
0{1i_
TWO SID[S
_N_S]RiClED

T

U

_72
(718}
Di#
BOX B011@4 FO!
_OWER SUPPif

....................
_._

G

iiOL[
Jl,i CONTROl
ELE¢IRIC=\L

G£_S Life
S'_ ',iCE
WL?E,
'i
SA[ III,SLE FLARE FOR D ¸_ 0 D
TUB[ SIZE
(_O_[_ECliON
?iii_i
i¸¸'4 ¸' SA[_ FIA_i}
PR{ISSHP]E
_!_i_ i i I JIN6

FiG.I
MODELS

BASE FIG.

A

B

C

D

E

F

G

H

J

K

L

M

2TTB053OA1

2

1

561 (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)

1-1/16-14 UNF- 2A

1/2-20 UNF- 2A

2TTB0536A1

2

1

561 (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)

1-1/16-14 UNF- 2A

1/2-20 UNF- 2A

2TTB0524AA

2

1

561 (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)

1-1/16-14 UNF- 2A

1/2-20 UNF- 2A

2TTB053OAA

2

1

561 (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)

1-1/16-14 UNF- 2A

1/2-20 UNF- 2A

2TTB0536AA

2

1

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)

1-1/16-14 UNF- 2A

1/2-20 UNF- 2A

From Dwg. 21D153509

6

Rev. 1

18-AC52D5-1

|nstal|er's
MOUNTING

Guide

HOLE LOCATION

Note: All dimensions are in IVllVl
(Inches).

265 (10

43)
124 (4.90)
ILL
4 PLACES

609 (23.99)

523 (2O,58)

317 (12.49)

l
2O5 (8,O7)

398
517 (20

15.67
34)

BASE 2

NOTE: For model base size,
see table on page 6.

18-AC52D5-1

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
Sump Heat

2

Indoor Fan Operation

3

Cooling Operation

4

Checking Performance
& Charge

@
CoN

Off

@
Heat

[

]

9. Return

[

]

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

air filter installed

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

[

]

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
indoor
Blower
Runs

Fan Switch
Auto
On

X

the following list:

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

iNDOOR THERMOSTAT
SWITCH SETTING
Step
No.

against

Outdoor
Fan
Runs

Compressor
Runs

@ Comp.
Sump
Heater

X

X

x
x

Ix

I

x

x

Ix

Ix!×l

Furnace
Heat
Comes On

X

x

I

x

I

x

x

X

x

x

X

USECHARTSATTACHEDTO O.D. UNiT

! × I

I

5

Heating @

6

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

Ix

Ix

I=

@ 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.

RI.

1rJMN'£
Trane
A business 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

2/03



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