Trane 4TVA0096B100NB, 4TVA0076B100NB Installation and Maintenance Manual
Installation, Operation,
and Maintenance
Variable Refrigerant Flow System
Big Duct Indoor Unit Series
Models: 4TVA0096B100NB, 4TVA0076B100NB
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and
servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could
result in death or serious injury. When working on the equipment, observe all precautions in the literature
and on the tags, stickers, and labels that are attached to the equipment.
February 2013 VRF-SVX31A-EN
Introduction
Read this manual thoroughly before operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required. Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING
CAUTIONs
NOTICE
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and Carbon
(HCFCs). Not all refrigerants containing these compounds
have the same potential impact to the environment. Trane
advocates the responsible handling of all refrigerantsincluding industry replacements for CFCs such as HCFCs
and HFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain refrigerants
and the equipment that is used in these service procedures.
In addition, some states or municipalities may have
additional requirements that must also be adhered to for
responsible management of refrigerants. Know the
applicable laws and follow them.
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
Indicates a situation that could result in
equipment or property-damage only.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken
could result in death or serious injury. Technicians, in
order to protect themselves from potential electrical,
mechanical, and chemical hazards, MUST follow
precautions in this manual and on the tags, stickers,
and labels, as well as the instructions below:
• Before installing/servicing this unit, technicians
MUST put on all PPE recommended for the work
being undertaken. ALWAYS refer to appropriate
MSDS sheets and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS sheets and
OSHA guidelines for information on allowable
personal exposure levels, proper respiratory
protection, and handling recommendations.
• If there is a risk of arc or flash, technicians MUST put
on all PPE in accordance with NFPA 70E or other
country-specific requirements for arc flash
protection, PRIOR to servicing the unit.
Copyright
This document and the information in it are the property of
Trane and may not be used or reproduced in whole or in
part, without the written permission of Trane. Trane
reserves the right to revise this publication at any time and
to make changes to its content without obligation to notify
any person of such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
© 2013 Trane All rights reserved VRF-SVX31A-EN
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings, Cautions, and Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Service Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Insulation for High-Humidity Applications . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Purging the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Leak Testing Pipe Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing the Drain System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Important Environmental Concerns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Important Responsible Refrigerant Practices . . . . . . . . . . . . . . . . . . . . . . . 2
Centralized Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Testing the Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Refrigerant Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Drainage Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electronic Expansion Valve (EEV) Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Using the VRF Wireless Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
The 2-Digit Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Configuration Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Mode 2: Option Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Mode 5: Option Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mode A: Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mode d: Specific Digit Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Internal Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
VRF-SVX31A-EN 3
Operating Mode for Heat Pump Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
External Static Pressure Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Cleaning the Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Periodic Maintenance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Warranty For Trane Advantage™ VRF Systems and Related Accessories . . . 38
Basic Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Exclusions and Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4 VRF-SVX31A-EN
Model Number Description
4TVD0018A100NA
1234567891011121314
Digit 1: Refrigerant
4 = R410A
Digit 2: Brand name
T = Trane
Digit 3: System type
V = Variable Refrigerant Flow
Digit 4: Configuration Type (also see separate tab)
B = mini 4-way cassette L = Slim duct type (low pressure)
C = 4-way cassette A = HSP duct type high pressure)
D = MSP duct type (mid-pressure) X = Ceiling
E = 1-way cassette W = High-wall
Digit 5: Reserved for future use
0 = Not currently used
Digit 6, 7, 8: Nominal capacity (Btu/h x 1,000)
006 = 6,00 0 Btu/h
007 = 7,000 Btu/h 024 = 24,000 Btu/h 068 = 68,000 Btu/h
009 = 9,00 0 Btu/h 030 = 30,000 Btu/h
012 = 12,000 Btu/h 036 = 36,000 Btu/h 096 = 96,000 Btu/h
018 = 18,000 Btu/h
020 = 20,000 Btu/h
048 = 48,000 Btu/h
060 = 60,000 Btu/h
076 = 76,000 Btu/h
Digit 9: Major development sequence
B = Second development sequence
Digit 10: Electric power supply characteristics
1 = 220/60/1
B = 220–240/50/1
Digit 11: Reserved for future use
0 = Not currently used
Digit 12: Controller
0 = None
R = Remote control standard
W = Wired control standard
Digit 13: Region of sale
N = North America (UL or ETL)
Digit 14: Minor design sequence
A = First design sequence
B = Second design sequence
VRF-SVX31A-EN 5
Preparing for Installation
Preparing for Installation
Accessories
In addition to product literature, the following accessories are supplied with this unit. The type and
quantity may differ, depending on the model.
Insulation
for
Template
refrigerant
pipe, in
Location Considerations
Insulation
for
refrigerant
pipe, out
Drain
insulation Cable tie
When deciding on a location for the indoor unit, the following factors must be considered:
• The air inlet and outlet must be unobstructed.
• The wall or ceiling must support the weight of the unit.
• The wall or ceiling must not be subject to vibration.
• Pre-plan for easy and short routing
• The air must circulate freely in the area
• Sufficient clearance must be mai
• Condensate must be managed correctly and safety away from the unit.
he unit should be installed in a way that prevents unauthorized access.
• T
• The unit must not be installed in an area that is damp or could come into contact with water
h as a laun
(suc
dry room).
• The unit must not be exposed to direct sunshi
• The filter must be able to be removed and cleaned easily.
• The unit should be placed as far as possible from
subject to interference.
• Care should be taken to prevent harmonics generated
proximity to a running unit.
• The unit must not be installed in an area that is exposed to salt, machine oil, sulfide gas, or
ve environmental conditions.
corrosi
Drain hose
insulation
Flexible
hose
Flexible
hose clamp
Rubber
gasket Washer Sleeve
of the refrigerant tubing and wiring to the outdoor unit.
to be cooled/heated.
ntained around the unit.
ne or to other direct heat sources.
fluo
rescent lights so the remote control is not
by lo
ose or unsupported material in close
6 VRF-SVX31A-EN
Unit Dimensions
Unit: inch (mm)
51.4 (1306) suspension position
41.0 (1040)
26.0 (660)
OD 1.26 (32)
46.8 (1188) air inlet duct flange
5.5 (140) x 8 = 44.1 (1120)
36.0 (914) suspension pos.
5.5 (140) x 8 = 44.1 (1120)
46.8 (1188) air outlet duct flange
48.9 (1240)
Discharge side
Suction side
25.5 (647)
23.6 (598)
1.4 (35)
1.8.5 (470)
15.2 (385)
E
F
D
A
C
B
A 3.9 (100) x 2 = 7.9 (200)
B 3.7 (93)
C 0.9 (22)
D 1.1 (29)
E
8.2 (209)
F 9.3 (236)
7
6
Preparing for Installation
No. Item Description
1 Liquid pipe connection 3/8 (9.52)
2 Gas pipe connection
3 Drain pipe connection OD 1-1/4 (32), ID 1 (25)
4 Drain pipe connection (option drain pump) OD 1-1/4 (32), ID 1 (25)
5 Power supply/communication conn ection —
6 Air discharge flange —
7 Air suction flange —
8 Hook 3/8 in. or M10
4TVA0076B100NB: 3/4 (19.05)
4TVA0096B100NB: 7/8 (22.22)
VRF-SVX31A-EN 7
Preparing for Installation
Unit width (W)
A = W + 3.94 (100)
B = 19.7 (500)
0.78 (20)
0.78 (20)
Unit depth (D) + 1.97 (50)
Ceiling
Unit
D
B
CA
Unit: inch (mm)
Service Clearances
Avoid Contact with Fan Motor Blower!
Install the unit at least 7.54 ft (2.2 m) from the floor to avoid the possibility of contact with the
fan motor blower while cleaning the duct. Failure to follow this installation requirement could
result in minor to moderate injury.
CAUTION
Note: If the unit is installed in a ceiling that does not have removable tiles, make allowances for
servicing the unit by creating an access hole. If the unit is installed more than 39.4 in. (1 m)
above the floor, the access hole must be the size of “B.” If the unit is installed less than
39.4 in. (1 m) above the floor, the access hole must be the size of “A” +“B” both.
Unit Insulation for High-Humidity Applications
For high-humidity applications, insulate the unit prior to mounting it. Use the following guidelines.
A and B C and D Top and Bottom
48.8 x 18.5 (1240 x 470) 18.5 x 41.0 (470 x 1040) 48.8 x 41.0 (1240 x 1040)
Notes: Use an insulation thickness of at least 3/8 in. (10 mm).
Insulate the suction duct and discharge duct at the same time as the sides of the unit.
8 VRF-SVX31A-EN
Installation
A
B
Ceiling support
Concrete
Pre-poured
anchor
Drill hole for
anchor
Field-supplied suspension
bolts (M10 or 3/8 in.)
Isolator
Bracket
Washers, isolators, or spacers
Threaded rod should not protrude more than
1.2 in (30 mm) below the top of the bracket
Review “Installation Considerations” before proceeding with installation.
Follow the procedures in these sections in the order given.
Note: Install the Y-joint before installing the indoor unit.
Mounting the Unit
If the ceiling is already constructed, piping must be laid into position before placing the unit inside
the ceiling.
Avoid equipment damage and personal injury!
Ensure that the ceiling is strong enough to support the weight of the indoor unit. Before
hanging the unit, test the strength of each of the attached suspension bolts.
To mount the unit:
1. Place the template on the spot where the unit is to be installed and mark the holes.
Note: The template may shrink or stretch slightly due to heat or humidity. Before drilling holes,
2. Determine the appropriate type of suspension bolts and anchors according to the ceiling type.
Insert bolt anchors into existing ceiling supports (A) or construct a suitable support (B).
Installation
CAUTION
verify proper dimensions between the marks.
VRF-SVX31A-EN 9
3. Install suspension bolts at all four locations.
4. Screw two nuts to each suspension b
Note: If the suspension bolts are longer than 59 in.
olt, leaving space between the nuts for hanging the unit.
[1.5 m]) or vibrations are a concern, place
isolators on the brackets to absorb vibrations.
ke
5. Hang the unit by its support brac
ts between the two nuts.
6. If pad stoppers or isolators are used to absorb vibrations, place them on the brackets.
7. Tighten the nuts to suspend
the unit following th
e guidelines in the figure below.
Installation
Ceiling
0.78 (20)
0.78 (20)
Unit
Drain hose port
1°
Liquid refrigerant port
Gas refrigerant port
Wet cloth
Welding flame
8. Maintain proper spacing between the unit and the ceiling; refer to the following figure.
9. Adjust the level of the unit so that it tilts1° to the side of the unit that will be connected to the
drain hose. A tilt of 1°is also recommended when a drain pump is installed.
Purging the Unit
The unit is shipped from the factory with a holding charge of nitrogen. All of this gas must be
purged from the unit.
To purge the unit, remove the caps from the ends of both gas and liquid refrigerant pipes. Make
sure all gas has escaped before connecting the piping.
Note: To prevent dirt or foreign objects from getting into the pipes during installation, do not
remove the caps completely until you are ready to connect the piping.
10 VRF-SVX31A-EN
Installing Refrigerant Piping
Correct: 90º
Oblique
Rough
Burr
Length of pipe extending above flare bar
Pipe
Flaring
bar
Connect field-supplied piping using flared connections (not supplied) or by brazing. The large unit
port is for gas refrigerant; the small one is for liquid refrigerant.
Cut or extend field-supplied piping as needed. Use the following procedures.
System Failure!
If brazing is used for pipe connections, a nitrogen purge is required to prevent the formation of
copper oxides inside the piping. Failure to follow this procedure could damage the system.
• Before connecting the pipes, make sure they are free of dirt and debris.
• Use insulated, unwelded, degreased, and deo
ISO 1337 or UNI EN 12735-1) suitable for an operating pressure of at least 609.15 psi (4200 kPa)
and a burst pressure of at least 3002.28 psi (20,700 kPa). Copper pipe for hydro-sanitary
applications
• For sizing and limits (height difference, line length, m
so on) see the outdoor unit installation manual.
• All refrigerant connections must be accessible for servicing an
Pipe Cutting
Required tools:
•Pipe cutter
•Reamer
• Pipe holder
1. Using a pipe cutter, cut the pipe so that the cut edge is at 90° to the side of the pipe.
2. Use a reamer to remove all burrs at the cut edge.
See examples of correctly and incorrectly cut pipes.
is unsuitable.
Installation
NOTICE
xidized copper pipe (Cu-DHP type according to
aximum bends, refrigerant charge, and
d maintenance.
Flared Pipe Connections
Clutch type and wing nut type flare tools are available for flared pipe connections.
1. Slide the flare nut over the pipe to be flared.
ol
2. Slide the end of the pipe into the h
pipe, determined by tool type (see table), extending above the flaring bar. Clamp it down.
VRF-SVX31A-EN 11
e on the flaring bar that fits the pipe, leaving a length of
Installation
Yoke
Flaring bar
Copper pipe
Flare nut
Inclined
Damaged
surface
Uneven
thickness
Correct
Cracked
R.016–.031
45°±2°
90°±2°
R-410A clutch type
Clutch type Wing nut type
Conventional flare tool
0–0.020 in. 0.04–0.06 in. 0.06–0.08 in.
3. Attach the yoke to the flaring bar, centering the conical part over the end of the pipe that is
extending above the flaring bar.
4. Tighten the yoke securely to flare the end of the pipe.
ould lo
5. Remove the pipe. The end of the pipe that you flared sh
ok like the end of a trumpet. See
examples of correctly and incorrectly flared pipes.
6. Align the pipes and tighten the flare nuts manually and then with a spanner torque wrench,
applying the torque according to pipe dimensions:
Flare
Outer diameter
(in. [mm])
1/4 (6.35) 10.3–13.3 ft·lb 0.34–0.36
3/8 (9.52) 25.1–31.0 ft·lb 0.50–0.52
1/2 (12.70) 36.1–45.0 ft·lb 0.64–0.65
5/8 (15.88) 50.2–60.5 ft·lb 0.76–0.78
12 VRF-SVX31A-EN
Connection
torque (ft·lb)
dimension
(in.)
Flare shape (in.)
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