TRANE Air Conditioner/heat Pump(outside Unit) Manual L0905060

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=AC51D1

:!l!i
i

Condensing Units
4TTR4
ALL phases

of this installation

IMPORTANT
-- This Document
pack upon completion of work.

must

comply

is customer

with
property

NATIONAL,

STATE

and is to remain

These instructions
do not cover all vmniations 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.

A. GENERAL

AND LOCAL

with this unit.

UNiT CONTAINS

CODES
Please

return

to service information

R-410A REFRIGERANT!

R-410A OPERATING
PRESSURE
EXCEEDS THE
LIMIT OF R-22. PROPER SERVICE EQUIPMENT
IS
REQUIRED.
FAILURE TO USE PROPER SERVICE
TOOLS MAY RESULT IN EQUIPMENT
DAMAGE OR
PERSONAL
INJURY.

SERVICE
This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and or property
damage. The manufacturer or seller cannot be responsible
for the interpretation of this information, nor can it assume
any liability in connection with its use.
NOTICE:
Trane has always recommended installing
matched indoor and outdoor systems.

USE ONLY R-410A REFRIGERANT
APPROVED
POE COMPRESSOR

AND
OIL.

5 FT. ABOVE UNiT = UNRESTRICTED

Trane approved

The benefits of installing approved matched systems are
maximum efficiency, optimum performance and best
overafl system reliability.

These units use R-410A refrigerant which operates at 50 to
70% higher pressures than R-22. Use only R-410A approved
service equipment. Refrigerant cylinders are painted a
"Rose" color to indicate the type of refrigerant and may contain a "dip" tube to allow for charging of liquid refrigerant into
the system. All R-410A systems use a POE oil that readily
absorbs moisture from the atmosphere. To limit this "hygroscopic" action, the system should remain sealed whenever
possible. If a system has been open to the atmosphere for
more than 4 hours, the compressor oil must be replaced.
Never break a vacuum with air and always change the driers when opening the system for component replacement.
For specific handling concerns with R-410A and POE oil, reference Retrofit Bulletin TRN-APGO2-EN.
Check for transportation
damage after unit is uncra_d.
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 AND PREPARATION
OF THE UNiT
1. When removing unit from the pallet, notice the tabs on
the basepan. Remove tabs by cutting with a sharp tool as
shown in Figure 2 (see page 2).
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".

|nsta||er's

Guide

BASEPAN

Final refrigerant
charge adjustment
is necessary.
Use
the Subcooling Charging procedure on page 6 or in the outdoor
unit Service Facts.

TAB REMOVAL

[sE"°VE

1. Determine
2. Consider

BS AS I
OWN)

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.
7. If outdoor unit is mounted above
mum lift should not exceed sixty
If air handler is mounted above
mum lift should not exceed sixty

the air handler, maxi(60) feet (suction line).
condensing unit, maxi(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 accordance with instruction
included with that unit.

REFRIGERANT

If using existing refrigerant
are brazed, not soldered.
Condensing

will be very difficult

to rebend once it

Determine the best starting point for routing the refrigerant tubing -- INSIDE OR OUTSIDE THE STRUCTURE.

4. Provide a pull-thru hole of sufficient size to allow both
liquid 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 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.
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.
d. Isolate the lines from all ductwork.

D. SERVICE

VALVE

a wall or sill,

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).

LINES

lines make certain that all joints

units have provisions

way to run the lines.

types of bends to be made and space limitations.

NOTE:
Large diameter tubing
has been shaped.
3.

C. iNSTALLiNG

the most practical

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.

In scroll compressor applications, dome temperatures may
be hot. Do not touch top of compressor, may cause minor
to severe burning.
The units are factory charged with the system charge required
when using fifteen (15) feet of rated connecting line. Unit
nameplate
charge is with twenty-five (25) feet of line set.

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 3.) No torque is required. Failure to follow this
warning will result in abrupt release of system charge and
may result in personal injury and/or property damage.
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 4.
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.
3. Cut and fit tubing,
90 ° bends.
4. Insulate

minimizing

the use of sharp

the entire gas line and its fittings.

18-AC51

D1-4

|nsta||er's
3. Attach
LIQUID

LINE SERVICE

VALVE
ROLLED

EDGE TO
;TEM

hose of manifold

gauges to vacuum

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

CAP-_=.UNIT SIDE OF
SERVICE VALVE

center

Guide

HEX HEADED
VALVE SYSTEM
6,

pump.
than

Close offvalve to vacuum pump and observe the micron
gauge. If gauge pressure rises above 500 microns in one (1)
minute., then evacuation is incomplete, or wstem has a leak.
If vacuum gauge does not rise above 500 microns
one (1) minute, the evacuation should be complete.

7. Blank off vacuum pump and micron gauge, close

valves on manifold gauge set.

SERVICE
PORT

NOTE:
DO NOT VENT REFRIGERANTINTO THEATMOSPHERE.

LIQUID LINE
CONNECTION

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.

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

enters pressure

tap

NOTE:
Precautions should be taken to avoid heat damage to
basepan during brazing. It is recommended to keep the
flame directly off of the baeepan.
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.
8. Braze using accepted

good brazing

techniques.

LEAK CHECK
iMPORTANT:
Replace pressure tap port valve core before attaching hoses for
evacuation.

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.
8. The liquid line shut-offvalve can now be opened. Remove
shut-off valve cap. Fully insert hex wrench into the stein
and backout counterclockwise until vane stem just touches
rolled edge (approximately five [5] turns) observing
WARNING statement on page 2. See Figure 3.
9. 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 116turn.
10. The gas valve can now be opened. 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 Figures 4 and 5.
11. The gas valve is now open for refrigerant

flow. Replace
valve stem cap to prevent leaks. Again, these caps

GAS LINE BALL SERVICE VALVE
CAP

_._

J--|

114 TURN
FOR

After the brazing operation of refrigerant
lines to both the
outdoor and indoor units is completed, the field brazed
connections must be ehecked for leaks. Pressurize
through
the serviee 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!

TAPPORT

/
GAS

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.

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 R-410A and
vacuum pump.
18-AC51 D1-4

OPEN

VALVE STEM

PRESSURE

charge, the gas and

FULL

UNIT SIDE
OF VALVE

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

ONLY

COUNTERCLOCKWISE

LINE

CONNECTION

GAS LINE SERVICE VALVE
ROLLED
EDGE TO
CAPTIVATE
STEM

CAP_

UNIT
SERVICE

SIDE

HEXHEADED
VALVE
SYSTEM

VALVE

SERVICE_
PORT

/
GAS LINE
CONNECTION

|nsta||er's

Guide

MUST
BE REPLACED
stem cap and pressure
an additional
1/6 turn.

to prevent
leaks.
Replace
valve
tap cap finger tight, then tighten
See Figures
4 and 5.

If refrigerant
lines are longer than fifteen (15) feet and/or
a different size than recommended,
it will be necessary
to adjust system refrigerant
charge upon completion of
installation.
See page 6 or the unit Service Facts.

E. ELECTRICAL

CONNECTIONS

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

must

comply

nameplate.

switch 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.
Table 1 -- NEC Class II Control Wiring

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

F. COMPRESSOR

G. OPERATIONAL
AND
CHECKOUT PROCEDURES
Final phases of this installation
are the unit Operational
and
Checkout Procedures which are found in this instruction
(see
table below and pages 6 and 8). To obtain proper performance, all units must be operated and charge adjustments
made in accordance with procedures found on page 6 and in
the Service Facts.
IMPORTANT:
Perform a final un# inspection to be sure that factory tubing has
not shifted during shipment. Adjust tubing ff necessary so tubes
do not rub against each other when the unit runs. Also be sure
that wiring connections are tight and wire routing is secure.

H. SEACOAST

24 VOLTS
WIRE SIZE

MAX. WIRE LENGTH

18 AWG

150 FT

16 AWG

225 FT.

14 AWG

300 FT.

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.

SHIELD

Units installed -within one (1) mile of salt water, including
seacoasts and inland waterways,
require the addition of
BAYSEAC001 (Seacoast Kit) at the time of installation.
IMPORTANT:
See Limited Warranty information in Use and Care Manual

7. Table i defines maximum total length of low voltage
wiring from outdoor unit, to indoor unit, _md to thermostat.

I. TROUBLESHOOTING
TROUBLESHOOTING CHART -- WHAT TO CHECK

SYSTEM
FAULTS

REFRIGERANT
CIRCUIT
LiquidPressure
TooHigh
LiquidPressure
TooLow
Suction
Pressure
TooNigh
Suction
Pressure
TooLow
LiquidRefrig,
Floodback
TXVSystem
I,D,CoilFrosting
Compressor
RunsInadequate
or NoCooling

i
!
i
i
i
!
i

PiPSPS
iS R
sP i
ss iss
s PiP
sP i
R i
S PiS
i
RS i
P i
PiS
SP iPS
SPiS

ELECTRICAL
Compressor
& O,D,FanDoNetstar
Compressor
Nil NotStartButO,D,FanRuns
O,D,FanWon'tstar
Compressor
HumsButWon'tStart
Compressor
CyclesonIOL
I,D,BoleerWraPt
Start
P- PrimaryCauses S-SecondaryCauses

18-AC51 D1-4

|nstaller's
TYPICAL
T 'STAT

AiR HANDLER

Guide

FIELD HOOK=UP DIAGRAMS
CONDITIONER

T 'STAT

VARIABLE SPEED
AIR HANDLER

F-_

E!i]---

CONDI] lONER

_"-..... R

...... y

r-_
r_

ODT

....

[21

r-_

Ot_T A

.OPT29_A2
.q_M__O__

_ ....... B

r-_

_[/'" B

'_"[--'B
PRINTED FROM B152901 P02
PRINTED FROM BIB2908P03

CONNECTIONS TO BE MADE FOR OPERATION OF
BLOWERWITH HUMID}STAT IN COOLING

I -STAGE
OR
2-STAGE
FURNACE

[ 'S IAT

VARIABLE SPEED
2 STAGE FURNACE

T 'STAT

AIR

CONDITIONER

COND ]IONEti

r._FF_

-.[]

[]

_,'...... y

_t===V

[i3

NOTE,k

NOTE

...... B

[]

Fq
PRINTEDFROMB152903P02
PRI lED FROM BI52901P04

"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-AC51 D1-4

(ODT) are not used, connect W1 to W2 and W3.

|nsta||er's
SUBCOOLING

Guide
CHARGING

iN COOLING

Trane has always recommended
installing
matched indoor and outdoor systems.
All Trane
systems.

split systems

are ARI rated

Trane

ABOVE 55°F OD AMBIENT

approved

with only TXV indoor

The benefits of installing approved indoor and outdoor split
systems are maximum efficiency, optimum performance
and
the best overall system reliability.

2. For best results - the indoor temperature
should be kept between 70°F to 80°F. Add
system heat if needed.
3. At start-up,
or -whenever charge is
removed or added, the system must be
operated
for a minimum
twenty (20)
minutes to stabilize before accurate
measurements
can be made.
4. Measure Liquid Line Temperature
and
Refrigerant
Pressure 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
Temperature
from the unit nameplate.
7. Locate this value in the appropriate
column of the Subcooling Charging Table.
Locate your liquid line temperature
in the
left column of the table, and the
intersecting
liquid line pressure under
your nameplate
subcool value column. Add
refrigerant
to raise the pressure to match

SUBCOOL

CHARGING

8. When system is correctly charged, you can refer to
System Pressure Curves (in Service Facts) to verify
typical performance.
R=410A REFRIGERANT

The following charging methods are therefore
prescribed for systems with indoor TXVs.
1. Subcooling (in the cooling mode) is the
recommended
method of charging above
55°F ambient temperatures.

the table, or remove refrigerant
to lower the pressure.
Again, -wait twenty (20) minutes for the system
conditions to stabilize before adjusting charge again.

LIQUID
TEMP
(°F)
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125

DESIGN

CHARGING

CHART

SUBCOOLING

(°F)

8 I 9 ! lo 111 ! 12113
LIQUID

179
195
211
229
247
267
287
309
331
355
381
407
435
464
495

182
198
215
232
251
271
291
313
336
360
386
413
441
470
501

GAGE

185
201
218
236
255
275
296
318
341
365
391
418
446
476
507

PRESSURE

188
204
222
240
259
279
300
322
346
370
396
424
452
482
514

(PSI)

191
208
225
243
263
283
304
327
351
376
402
429
458
488
520

195
211
229
247
267
287
309
331
355
381
407
435
464
495
527

198
215
232
251
271
291
313
336
360
386
413
441
470
501
533

Refer to Service Facts or
Installer's Guide for charging method.
From Dwg. D154557P01

TABLE CORRECTIONS

Rev. 2

FOR LINE LENGTH AND RISE

E0
50
ZLU

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TRANE Air Conditioner/heat Pump(outside Unit) Manual L0905060

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