Ingersoll-Rand 4TVB0005B100NC Installation and operating instructions

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.
Variable Refrigerant Flow System
Mini 4-Way Cassette Indoor Unit Series
Models: 4TVB0005B100NC
4TVB0007B100NC
4TVB0009B100NC
4TVB0012B100NC
4TVB0018B100NC
4TVB0020B100NC
VRF-SVX28D-EN
February 2017
Installation, Operation,
and Maintenance

© 2017 Ingersoll Rand All rights reserved VRF-SVX28D-EN
Introduction
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.
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 refrigerants—including industry replacements for
CFCs and HCFCs such as saturated and unsaturated HFCs and HCFCs.
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.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTIONsIndicates 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.
NOTICE Indicates a situation that could result in equipment or property-damage only
accidents.
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.
Failure to follow code could result in death or serious injury.

VRF-SVX28D-EN 3
Introduction
Copyright
This document and the information in it are the property ofTrane, and may not be used or
reproduced in whole or in part without written permission.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.
Revision History
The Digit 14 change to the unit model number represents a firmware revision which enables
compatibility between the indoor unit and the second generation outdoor unit (ODU) series: model
numbers 4TVH/R****D, 4TVP****C); and the second generation mode control unit (MCU) series
model numbers 4MCUTV****A. Additional miscellaneous corrections were made for consistency
and accuracy.
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 required for the work
being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard
hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to
appropriate Material Safety Data Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
guidelines for proper PPE.
• When working with or around hazardous chemicals,ALWAYS refer to the appropriate MSDS/
SDS and OSHA/GHS (Global Harmonized System of Classification and Labelling of
Chemicals) guidelines for information on allowable personal exposure levels, proper
respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE
in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash
protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING,
DISCONNECTING, OR VOLTAGETESTING WITHOUT PROPER ELECTRICAL PPE AND ARC
FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.

4 VRF-SVX28D-EN
Table of Contents
Model Number Description .............................................. 6
Preparing for Installation ................................................ 7
Accessories ....................................................... 7
Location Considerations ............................................ 7
Unit Dimensions ................................................... 8
Service Clearances ................................................. 9
Installation ............................................................ 10
Mounting the Unit ................................................ 10
Purging the Unit .................................................. 11
Installing Refrigerant Piping ........................................ 12
Pipe Cutting ................................................. 12
Nitrogen Flushing While Brazing ................................ 12
Flared Pipe Connections ........................................... 13
Leak Testing Pipe Connections ..................................... 14
Installing the Drain System ......................................... 16
Centralized Drainage .......................................... 18
Testing the Drainage .......................................... 18
Insulation ............................................................. 19
Insulating Refrigerant Pipes ........................................ 19
Insulating the Drainage System ..................................... 19
Wiring the Unit ........................................................ 20
Power Wiring ..................................................... 20
Communications Wiring ........................................... 20
Electrical Conduit Installation ....................................... 20
Configuration ......................................................... 23
Using the VRF Technician Utilities Tool (TUT) ........................ 23
Using the VRF Wireless Remote Control ............................. 24
The 2-Digit Segments ......................................... 25
Installation Option #1 .............................................. 26
Installation Option #2 .............................................. 28
Operation ............................................................. 32
Components ..................................................... 32
Operating Tips .................................................... 32
Internal Protections ............................................... 33
Operating Ranges ................................................. 33
Operating Mode for Heat Pump Systems ............................. 33

VRF-SVX28D-EN 5
Maintenance .......................................................... 33
Cleaning the Exterior .............................................. 33
Cleaning the Grill and Air Filter ..................................... 34
Periodic Maintenance Checks ....................................... 35
Error Codes ........................................................... 35
Troubleshooting ....................................................... 35

6 VRF-SVX28D-EN
Model Number Description
Digit 1: Refrigerant
Digit 2: Brand name
Digit 3: System type
Digit 4: ConfigurationType
Digit 5: Reserved for future use
Digit 6, 7, 8: Nominal capacity (Btu/h x 1,000)
Digit 9: Major development sequence
Digit 10: Electric power supply characteristics
Digit 11, 12: Reserved for future use
Digit 13: Region of sale
Digit 14: Minor design sequence
4TVB0018B100NC
1234567891011121314
4 = R410A
T =Trane
V = Variable Refrigerant Flow
B = mini 4-way cassette
0 = Not currently used
005 = 5,000 Btu/h
007 = 7,500 Btu/h
009 = 9,000 Btu/h
012 = 12,000 Btu/h
018 = 18,000 Btu/h
020 = 20,000 Btu/h
A = First development sequence
B = Second development sequence
1 = 208–230/60/1
0 = Not currently used
N = North America (UL or ETL)
A = First development sequence
B = Second design sequence
C =Third design sequence

VRF-SVX28D-EN 7
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.
Location Considerations
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 of the refrigerant tubing and wiring to the outdoor unit.
• The air must circulate freely in the area to be cooled/heated.
• Sufficient clearance must be maintained around the unit.
• Condensate must be managed correctly and safety away from the unit.
• The unit should be installed in a way that prevents unauthorized access.
• The unit must not be installed in an area that is damp or could come into contact with water
(such as a laundry room).
• The unit must not be exposed to direct sunshine or to other direct heat sources.
• The filter must be able to be removed and cleaned easily.
• The unit should be placed as far as possible from fluorescent lights so the remote control is not
subject to interference.
• Care should be taken to prevent harmonics generated by loose or unsupported material in close
proximity to a running unit.
• The unit must not be installed in an area that is exposed to salt, machine oil, sulfide gas, or
corrosive environmental conditions.
Template Flexible hose Drain hose insulation Drain hose insulation wrap Conduit bracket Grommet

8 VRF-SVX28D-EN
Preparing for Installation
Unit Dimensions
1-7/8 22-5/8
4-3/4
8-7/8
8
6-1/4
11-5/8
9-7/8
11-7/8
7-7/8
1-7/8 1-7/8 22-5/8 1-7/8
6-1/2
9-7/8
10-5/8
1.7
2-3/4
26-3/8
26-3/8
22 ceiling opeining
19-3/4 suspension position
19-3/4 suspension position
22 to 24-7/8 ceiling opening
Sub duct connection
Unit: inch (mm)
Net dimension 22-5/8 x 9 x 22-5/8
Net weight 24.46 lb
Liquid pipe connection 1/4
Gas pipe connection 1/2
Drain hose connection OD: 1.25; ID: 0.98

VRF-SVX28D-EN 9
Preparing for Installation
Service Clearances
11-3/4
59 minimum
5/8
3/4
59 minimum
Obstruction

10 VRF-SVX28D-EN
Installation
Review “Installation Considerations” before proceeding with installation.
Follow the procedures in these sections in the order given.
Note: Install theY-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.
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,
verify proper dimensions between the marks. Refer to “Installing the Front Panel” for
final finishing clearances.
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).
3. Install suspension bolts at all four locations.
4. Screw two nuts to each suspension bolt, leaving space between the nuts for hanging the unit.
Note: If the suspension bolts are longer than 59 in.) or vibrations are a concern, place isolators
on the brackets to absorb vibrations.
5. Hang the unit by its support brackets between the two nuts.
6. If pad stoppers or isolators are used to absorb vibrations, place them on the brackets.
CAUTION
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.
Concrete
Drill hole
for anchor Field-supplied
suspension bolts
(M10 or 3/8 in.)
Pre-poured
anchor
A
Ceiling support
B
Isolator
Bracket

VRF-SVX28D-EN 11
Installation
7. Tighten the nuts to suspend the unit following the guidelines in the figure below.
Washers, isolators, or spacers
Threaded rod should not
protrude more than 1.2 in
below the top of the bracket
8. Maintain proper spacing between the unit and the ceiling; refer to the following figure.
9. Adjust the level of the unit with a leveler.
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, unscrew the pinch pipes 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 pinch pipes completely until you are ready to connect the piping.
Indoor unit 3/4 in.
Ceiling
5/8 in.
Gauge
Liquid refrigerant port
Gas refrigerant port

12 VRF-SVX28D-EN
Installation
Installing Refrigerant Piping
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.
• Before connecting the pipes, make sure they are free of dirt and debris.
• Use insulated, unwelded, degreased, and deoxidized copper pipe (Cu-DHP type according to
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 is unsuitable.
• For sizing and limits (height difference, line length, maximum bends, refrigerant charge, and
so on) see the outdoor unit installation manual.
• All refrigerant connections must be accessible for servicing and maintenance.
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.
Nitrogen Flushing While Brazing
While brazing refrigerant pipes, flush them with nitrogen gas. Use a pressure regulator to maintain
a flow rate of 1.76 ft3/h or more.
NOTICE
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.
Correct: 90º Oblique Rough Burr
NOTICE
Avoid Unit Damage!
Never braze pipe connections without performing nitrogen flushing. Failure to perform this
procedure will damage the unit, resulting in capacity loss and reduced long-term reliability.

VRF-SVX28D-EN 13
Installation
Figure 1. Nitrogen flushing while brazing refrigerant pipes
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.
2. Slide the end of the pipe into the hole on the flaring bar that fits the pipe, leaving a length of
pipe, determined by tool type (see table), extending above the flaring bar. Clamp it down.
Length of pipe extending above flare bar
Pipe
Flaring
bar
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.
Flowmeter
Pressure regulator Stop valve
Nitrogen
Nitrogen
R-410A clutch type Conventional flare tool
Clutch type Wing nut type
0–0.020 in. 0.04–0.06 in. 0.06–0.08 in.

14 VRF-SVX28D-EN
Installation
4. Tighten the yoke securely to flare the end of the pipe.
Yoke
Flaring bar
Copper pipe
Flare nut
5. Remove the pipe.The end of the pipe that you flared should look 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:
Outer diameter
(inch) Connection torque (ft·lb)
Flare
dimension
(inch) Flare shape (in.)
1/4 10.3–13.3 ft·lb 0.34–0.36
3/8 25.1–31.0 ft·lb 0.50–0.52
1/2 36.1–45.0 ft·lb 0.64–0.65
5/8 50.2–60.5 ft·lb 0.76–0.78
Leak Testing Pipe Connections
Inclined Damaged
surface Uneven
thickness
Correct Cracked
R.016–.031
45°±2°
90°±2°
WARNING
Confined Space Hazards!
Do not work in confined spaces where refrigerant or other hazardous, toxic or flammable gas
may be leaking. Refrigerant or other gases could displace available oxygen to breathe, causing
possible asphyxiation or other serious health risks. Some gases may be flammable and or
explosive. If a leak in such spaces is detected, evacuate the area immediately and contact the
proper rescue or response authority. Failure to take appropriate precautions or to react properly
to such potential hazards could result in death or serious injury.

VRF-SVX28D-EN 15
Installation
Notes:
• All required piping pressure tests must be completed in accordance with national and/or
local codes.
• When leak-testing refrigerant systems, observe all safety precautions.
• Leak test only one circuit at a time to minimize system exposure to potentially harmful
moisture in the air.
• Use R-410A refrigerant gas as a tracer for leak detection and use oil-pumped dry nitrogen
to develop required test pressures.
1. Close liquid line angle valve.
2. Connect R-410A refrigerant cylinder to high side charging port (at condenser or field supplied
discharge line access port). Add refrigerant to reach pressure of 12 to 15 psig.
3. Disconnect refrigerant cylinder. Connect dry nitrogen cylinder to high side charging port and
increase pressure to 150 psig. Do not exceed high side (discharge) unit nameplate design
pressure. Do not subject low side (suction) components to high side pressure.
4. Check all piping joints, valves, etc. for leaks. Recommend using electronic detector capable of
measuring 0.1 oz/year leak rate.
5. If a leak is located, use proper procedures to remove the refrigerant/nitrogen mixture, break
connections and make repairs. Retest for leaks.
6. Make sure all service valves are open.
WARNING
Explosion Hazard!
Never use an open flame to detect gas leaks. It could result in an explosion. Use a leak test
solution for leak testing. Failure to follow recommended safe leak test procedures could result
in death or serious injury or equipment or property-only-damage.
Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene,
oxygen or compressed air or mixtures containing them for pressure testing. Do not use
mixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressure
testing as they may become flammable and could result in an explosion. Refrigerant, when
used as a trace gas should only be mixed with dry nitrogen for pressurizing units. Failure to
follow these recommendations could result in death or serious injury or equipment or
property-only damage.
Do not exceed unit nameplate design pressures when leak testing system. Failure to follow
these instructions could result in an explosion causing death or serious injury.

16 VRF-SVX28D-EN
Installation
Installing the Drain System
1. Push the supplied drain hose as far as possible over the drain hose port.
•Do not apply excessive force to the piping on the unit side when connecting the drain hose.
•Drain hose port locations differ depending on the unit type.
2. Wrap the insulation (supplied) around the drain hose and clamp the connection as tightly as
possible until you can see at least 8 holes.
Insulation
Clamp
3. Install the drain pipe into the drain hose. Secure it with PVC adhesive and clamps as necessary
to ensure a tight fit with no leakage.
Drain hose
PVC pipe
4. Install air vent to ensure smooth condensate drainage.
Air vent
Ceiling
Drain hose port
Drain hose

VRF-SVX28D-EN 17
Installation
•Do not install the hose with an upward gradient after the connection port or leaks will result.
•The hose should not be allowed to hang loose from its connection to the unit. Fasten the
hose to a wall, frame or other support as close to the unit as possible.
•If increasing the height of the drain pipe is necessary to set the drain hose at a sufficient
slope, installing a vertical drain pipe within 11.8 in. from the drain hose port (see A). If raised
higher than 21.65 in. , water leaks may result (see “C” in figure).
•Install the air vent at least 3.04 in. above the highest point of the drain pipe.
3 ft, 3 in.–5 ft
A = 11-3/4 in. or less
B = 3 ft, 3 in.–5 ft
C = 21-5/8 in. or less
D = 4 in. or more
E = 3/4 in. or more
Air vent
A
B
C
Horizontal drain pipe: more than 1/100 slope
Ceiling
D
Hanger
E

18 VRF-SVX28D-EN
Centralized Drainage
If the installation requires more than three indoor units, install the main air vent at the front of the
indoor unit that is farthest from the main drain.
It may be necessary to install individual air vents to prevent water flowing back to each indoor unit.
See figure below.
Testing the Drainage
After completing the installation, test the drainage to make sure there are no leaks:
1. Operate the unit in cool mode.
2. Remove drain pump cover.
3. Squirt water into the drain pan (as shown in the next figure).
4. Confirm that the water flows out through the drain hose and that no leakage occurs at any of
the connections.
5. Reassemble the drain pump cover.
Hanger
Main drain pipe
Individual
air vent
Main air vent
Centralized horizontal drain pipe (more
than 1/100 slope)
22 in. or less
39–59 in.
Ceiling

VRF-SVX28D-EN 19
Insulation
After determining that there are no leaks in the refrigerant pipes or drainage hose, insulate them
as described in these sections.
Insulating Refrigerant Pipes
1. Use the table below to select the insulation type for each pipe size.
2. Wrap insulation around the entire surface of each pipe, from the indoor unit to the outdoor unit,
overlapping insulation to avoid gaps. Clamp insulation tightly to pipe.
•Do not wrap the gas and liquid refrigerant pipes together.
•Avoid compressing the insulation as much as possible.
•Be sure there are no cracks or deformities in the insulation at bends in pipes.
•If necessary double the insulation to prevent condensation from forming in warm or humid
areas.
•Cut off excess insulation.
Insulating the Drainage System
Insulate (field supplied) the entire surface of the drain pipe that is inside the building, including the
connection between the drain hose and drain stub. Clamp tightly.
Pipe Pipe size (inch)
Insulation Type
Standard conditions
(86°F [30°C], 85%) High humidity conditions(a) (86°F [30°C], over 85%)
EPDM or NBR
Liquid pipe 1/4 – 3/8 3/8 3/8
1/2 – 2 1/2 1/2
Gas pipe(b)
1/4 1/2 3/4
3/8– 1 3/4 1.0
1-1/8– 1-3/4 1-1/4
2 1.0 1-1/2
(a)When installing insulation in any of the following environments, use insulation required for high humidity conditions: Buildings with close proximity to
bodies of water or hot springs or on the side of a hill in which the building is partly covered by earth; ceilings frequently exposed to moisture such as
in restaurants, saunas, swimming pools, and corridors of dormitories or studios near a frequently-used outdoor exit; buildings with no ventilation system.
(b) Internal temperature of gas pipe is higher than 248°F (120°C).

20 VRF-SVX28D-EN
Wiring the Unit
Wiring the Unit
Observe the following precautions when making electrical connections.
• Make all electrical connections in accordance with electrical codes and ordinances.
• Select the power cable in accordance with relevant local and national regulations.
• Wire size must comply with local and national code.
• Use grade H07RN-F or H05RN-F power cable.
• Connect the power cable into the power cable terminal and fasten it with a clamp.
• Unbalanced power must be maintained within 10% of supply rating among whole indoor units.
• Significantly unbalanced power may shorten the life of the system. If the unbalanced power is
greater than 10% of supply rating, the unit will stop and an error code will be generated.
• Connect the power cable to the auxiliary circuit breaker. An all-pole disconnection from the
power supply must be incorporated in the field wiring (1/8 in.).
• All wiring must be protected from weather and damage.
• Maintain a distance of 2 in. or more between power and communications cables to prevent
interference.
• Maintain a voltage drop of less than 10% between the power source and the unit(s).
• Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small
head will strip the head and make proper tightening impossible.
• Over-tightening the terminal screws may break them.
Tightening torque for M4 screws: 0.86–1.06 lbf·ft.
• After making a knockout hole, apply rust-preventive paint to the bare metal around the hole.
• Secure the cable conduit to the outdoor knockout using the proper connector and bushing.
Power Wiring
Connect the power cable to terminals 1(L) and 2(N) on each indoor unit. Refer to Figure 2 or
Figure 3, p. 21.
Communications Wiring
Use 18 AWG, 25 pF/ft nom., 60.7 impedance, braid or foil shielded, twisted pair wire. Connect the
communications wiring as shown in Figure 2 or Figure 3, p. 21.
Electrical Conduit Installation
A conduit bracket must be installed to secure the conduit, as illustrated in Figure 4, p. 22.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
NOTICE
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to use copper
conductors could result in equipment damage.