Trane TTD User manual

Installation Manual
Multi-Split System
Condensing Unit
18,000-54,000 Btuh
Models 50/60 Hz
MS-SVN005-EN
TTD/TTT
October 2012
50 Hz Models
Cooling Only
TTD 518 AB
TTD 521 AB
TTD 527 AB
TTD 530 AB
TTD 536 AB
TTD 536 DB
TTT 527 AB
TTT 530 AB
TTT 533 AB
TTT 536 AB
TTT 536 DB
TTT 542AB
60 Hz Models
Cooling Only
TTD 518 A1
TTD 521 A1
TTD 524 A1
TTD 527 A1
TTD 530 A1
TTD 536 A1
TTD 536 D1
TTT 527 A1
TTT 530 A1
TTT 533 A1
TTT 536 A1
TTT 536 D1
TTD 524 AB
TTD 530 DB
TTD 524 DB
TTD 527 DB
TTD 533 AB
TTD 533 DB
TTD 542 AB
TTD 542 DB
TTD 545 AB
TTD 548 AB
TTD 548 BB
TTD 548 DB
TTD 554 AB
TTD 554 DB
TTT 542DB
TTT 545AB
TTT 548AB
TTT 548BB
TTT 554AB
TTT 554DB
TTD 551 AB

2MS-SVN005-EN
General Information
© American Standard Inc. 2000
General Information
This Installation Manual is given as a
guide to good practice in the
installation by the installer of TTD/TTT
mini-split system. Installation
procedures should be performed in
the sequence that they appear in this
manual.
For installing the unit to operate
properly and reliably, it must be
installed in accordance with these
instructions. Also, the services of a
qualified service technician should be
employed, through the maintenance
contract with a reputable service
company.
Read this Installation Manual
completely before installing and
operating the system.
About this Manual
Cautions appear at appropriate places
in this Instruction Manual. Your
personal safety and the proper
operation of this machine require that
you follow them carefully.
The Trane Company assumes no
liability for installations or servicing
performed by unqualified personnel.
All phases of the installation of this air
conditioning system must conform to
all national, provincial, state and local
codes.
About the Unit
These TTD/TTT units are assembled,
pressure tested, dehydrated, charged
and run tested before shipment.
Reception
On arrival, inspect the unit before
signing the delivery note. Specify any
damage of the unit on the delivery
note, and send a registered letter of
protest to the last carrier of the goods
within 72 hours of delivery. Notify the
dealer at the same time.
The unit should be totally inspected
within 7 days of delivery. If any
concealed damage is discovered,
send a registered letter of protest to
the carrier within 7 days of delivery
and notify the dealer.
Warning
Warnings are provided at appropriate
places in this manual to indicate to
installers, operators and service
personnel of potentially hazardous
situations which, if not avoided,
COULD result in death or serious
injury.
Caution
Cautions are provided at appropriate
places in this manual to indicate to
installers, operators, and service
personnel of potentially hazardous
situations which, if not avoided, MAY
result in minor or moderate injury or
malfunction of the unit.
Your personal safety and the proper
operation of this unit require that you
follow them carefully. The Trane
Company assumes no liability for
installations or servicing performed by
unqualified personnel.
Warranty
Warranty is based on the general
terms and conditions by country. The
warranty is void if the equipment is
modified or repaired without the
written approval of The Trane
Company, if the operating limits are
exceeded or if the control system or
the electrical wiring is modified.
Damage due to inappropriate
installation, lack of knowledge or
failure to comply with the
manufacturer’s instructions, is not
covered by the warranty obligation.
If the installation does not conform to
the rules described in Installation
Manual, it may entail cancellation of
warranty and liabilities by The Trane
Company.
Important
This document is customer property
and is to remain with unit. Please
place in service information pack upon
completion of work.
These instructions do not cover all
variations in systems, nor do they
provide for every possible contingency
to be met in connection with
installation.
Should further information be desired
or should particular problems arise
which are not covered sufficiently in
this manual, the matter should be
referred to your authorized Trane
dealer.
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MS-SVN005-EN 3
Contents
2
10
11
12
4
5
6
7
8
9
14
18
General Information
Valid System Combinations
Installation Requirements
Location and Preparation of Units
Connection of Refrigerant Tubing
Condensate Drain Piping
System Evacuation and Purging
Electrical Installation
Matching Table
Wiring Diagram
Dimensional Data
Note
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4MS-SVN005-EN
Valid System Combinations
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MS-SVN005-EN 5
Installation Requirements
Table 2
1. Copper Tubing
Copper tubing, fittings and
insulation to interconnect the
suction (S) (wide tube) and liquid
(L) (narrow tube) refrigerant lines
between the indoor and outdoor
units can be purchased locally.
It is necessary to purchase the
following items:
- Purchase equal lengths of both
tubes and insulation required.
Cut the appropriate tube lengths,
30 to 40 cm (12 to 16 in.) longer
on each one to deepen vibration
between units. Wall thickness of
copper tube should be 0.8 mm
(0.0314 in.).
Both tubes must be well
insulated with proper insulation
materials.
- The length of wiring will
determine the wire size. See
local codes, refer to section of
electrical installation.
2. Additional Materials
- Saddles or clamps to hold
refrigerant tubing.
- Insulated clamps or staples
for connecting wire.
See local codes.
- Refrigeration oil and tape
(armored).
- Putty or similar filter.
*On Cooling Mode
Indoor Unit 512 518
O.D. O.D. O.D.
Item mm (in.) mm (in.) mm (in.)
Deoxidizied Annealed (L *) 6.35 (1/4) 6.35 (1/4) 6.35 (1/4)
Copper Tube (S *) 9.52 (3/8) 12.7 (1/2) 12.7 (1/2)
Foamed Polyethylene Diameter: According Diameter: According Diameter: According
to O.D. of copper tube to O.D. of copper tube to O.D. of copper tube
Insulation Thickness: No less than Thickness: No less than Thickness: No less than
8 mm (0.3 in) 8 mm (0.3 in) 8 mm (0.3 in)
Insulated Copper Wire Length required to make Length required to make Length required to make
electrical wiring electrical wiring electrical wiring
507-509
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6MS-SVN005-EN
Location and Preparation of Units
1. Choose a place as cool as possible.
The place should be well ventilated
and the inlet air should not hotter
than the outside temperature (max
45OC or 113OF).
2. Avoid the vicinity of heat sources,
exhaust fan, etc.
3. Avoid direct sunlight, provide
awnings if necessary.
4. The unit should be set on a level
reinforced concrete pad to avoid
the effect humidity. The minimum
height of the concrete pad should
be 100 mm. (4"). Unit shall be fixed
securely to the concrete pad with
bolts (not supplied) to prevent
abnormal noise and vibration.
5. The concrete pad must be
positioned a minimum of 200 mm.
(8") from any well and surrounding
shrubbery.
6. Minimum clearance on the inlet air
side of the unit must be 250 mm.
(10") : 1200 mm. (48") on the
discharge air side of the unit and
250 mm. (10") on the tubing side
of the unit (Figure 1).
7. When the unit is mounted on a roof,
be sure the roof will carry the unit’s
weight. Vibration isolation is
recommended to prevent
transmission to the building
structure.
Note
The Multi-Split System (Outdoor) Unit
should be installed as close to the
indoor units as possible.
Figure 1
Air Discharge Air Inlet
200 mm (10")1,200 mm (48")
250 mm (10")250 mm (10")
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MS-SVN005-EN 7
Connection of Refrigerant Tubing
Table 3
Tube Diameter Tightening Torque
mm. in. kg - cm lbs - in.
6.35 (1/4) 150 - 200 (130 - 170)
9.52 (3/8) 350 - 400 (300 - 340)
12.70 (1/2) 500 - 550 (430 - 470)
1. The principal concerns in
refrigeration tubing are:
- Uniform oil return to the
compressor.
- Pressure drops and their effect on
system capacity.
- Tube routing and isolation to avoid
line breakage, vibration and sound
transmission. Regarding this, the
interconnecting refrigerant lines
should be simple and shorter as
much as possible.
2. Flare Connections
The units reported in this manual
employ the flare method to
interconnect refrigerant tubes between
indoor and outdoor units (Figure 2).
- The tube end of all refrigerant tubes
should be flared, the tube should
be cut and deburred. Be sure no
copper scraps fall in to the tube.
- Be sure to fit a cap to the open end
of the tube to keep it free of dust
and moisture.
- Avoid bending the tube. If it is
necessary, bend it gently, with a
radius of more than 3 or 4 cm.
(1 1/2 in. or 1 5/8 in.)
- Cut approximately 30 to 50 cm.
(12 in. to 20 in.) longer than
estimated tubing length.
- Before flaring remember to fit
the nut.
- Ream with tube end downward
to avoid copper scraps inside
the tube.
- Remove the flare caps on the
tube end.
- Connect the tubes by aligning
the centers of both flares and turn
the flare nuts by hand 3 or 4 turns
(Figure 3).
3. Insulate both lines, liquid (narrow
tube) and suction (wide tube), to
prevent heat loss and wet floor due to
dripping of chilled condensation.
Apply proper insulation material,
minimum thickness should be 8 mm
(1/3 in.) (Figure 4).
Note
Do not try to bend the tube after
installation.
4. Finish with armoring tape.
Also see section of condensate drain
piping.
Note
Apply refrigeration oil on flare and
union surfaces before connecting
them. This will reduce refrigerant
leakage.
- Check the tubing connections and
refrigerant lines before applying
specified torque. Fasten flare nuts
as recommended below.
Figure 4
Figure 3
Figure 2
Electrical Connection
Service Port
Valve Cap Tu b e
Connection
(Flare)
Liquid Line System # 1
Gas Line System # 1
Liquid Line System # 2
Gas Line System # 2
Liquid Line System # 3
Gas Line System # 3
Union Flare nut
Insulation Thickness
Min. 8 mm Min. 8 mm (1/3 in.)
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8MS-SVN005-EN
Condensate Drain Piping
Figure 5
Drain
1. The drain hose should come
straight down the wall to a level
where runoff will not stain the wall.
2. There should be no traps and avoid
putting the end of the hose in water.
3. To avoid damage to the floor or
furniture when the drain hose is
placed in the room, insulate the
hose with foamed polyethylene
or equivalent.
4. After completing refrigerant lines,
wining and drain connection, bind
the tubing, wining and drain pipe
(check if local codes permit it) into
a bundle by using tape at 100 or
200 mm (4 in. or 8 in.) intervals.
Make sure the drain tube is at the
bottom of the bundle (Figure 5).
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MS-SVN005-EN 9
System Evacuation and Purping
The outdoor unit is factory charged.
Unit nameplate charge is the total
required system charge with 7.5
meters of interconnecting lines. Since
the outdoor unit will not have to be
evacuated unless charge has been
completely lost, leave the suction and
liquid shut-off valves closed.
1. Upon completion of installation,
evacuate the refrigerant lines and
indoor coil (Figure 6).
2. Evacuate unit until the gauge reads
350 microns or evacuate at least
one hour for one system.
3. Close off valve to vacuum pump
and observe the micron gauge. If
gauge pressure rised above 500
microns in one (1) minute, then
evacuation is incompleted or
system is leaking.
- Attach appropriate hose from
manifold gauge to suction and
liquid line valves service ports.
- Attached center hose of mainfold
gauges to vacuum pump.
Note
Unnecessary switching of hoses and
complete evacuation of all lines
leading to sealed system can be
accomplished by placing a “T” in
manifold center hose and connecting
branch hose to cylinder of R-22.
Note
Evacuate unit 2 and 3 in the same
manner explained above.
This completes system evacuation
with a vacuum pump and the air
conditioner is ready for actual
operation.
Figure 6
Indoor Unit 3
Indoor Unit 2
Indoor Unit 1
System # 3
System # 2
System # 1
Service Port System #3
Suction Line System #3
Liquid Line System #3
Suction Pressure
Liquid Pressure
Vacuum Pump
Cylinder of R-22
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10 MS-SVN005-EN
Electrical Installation
Wiring and grounding must comply
with national and local codes.
Wiring
Important Safeguards:
- Check the unit nameplate for
electrical rating. Be sure wiring is
according to local codes and wiring
system diagram.
- A power supply disconnect and a
circuit breaker for overcurrent
protection should be provided in
the exclusive line.
- Connect all units electrically with
ground.
- Wiring should not touch refrigerant
tubing, compressor or moving
parts.
- The manufacturer will have no
responsibility for the problems
caused by unauthorized change in
the internal wiring.
- Connect wiring firmly.
- Use recommended wire length
and size.
Note
- Each country has their own field
wiring rules and regulations. Be
sure the installation complies with
local electrical codes.
- Nameplate ratings on indoor units
are for “one-to-one” system
installations only.
Checking the system before start up
Once the unit is installed, a check of
the system is recommended before
starting the units.
- Check that field connections are
correctly made.
- Check that units are correctly
installed and there is no tool or
debris near or on top of the unit.
- Check the tubing and the
connections for leaks.
- Check that unit has a proper
ground wiring.
- Check for proper voltage and fuse
size.
- Check electrical wire size used is as
specified.
- Check all field wiring for tight
connection.
- Make sure that electrical wires
inside the unit do not contact with
refrigerant pipes.
- Start the system and carefully
observe operation.
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