Ingersoll-Rand Trane R Series Owner's manual

© 2013 Trane RLC-SVX16A-E4
1
Installation
Operation
Maintenance
March 2013
RLC
-
SVX16A
-
E4
Addendum to RTAC chiller IOM RLC-SVX02*-E4
Air
-
Cooled Series R™
Helical-Rotary condensing unit
Model RTAC-S 120 to 200
(400 to 750 kW – 50 Hz)

© 2013 Trane RLC-SVX16A-E4
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The Trane Model RTAC Air-Cooled Helical-Rotary Condensing unit is based on the reliability, higher energy
efficiency, and lower sound levels of RTAC chiller range.
This document include additional requirement and is a complement of the RTAC IOM ref RLC-SVX02
Foreword
These instructions are given as a guide to good practice in the installation, start-up, operation, and maintenance by
the user, of Trane RTAC. They do not contain full service procedures necessary for the continued successful
operation of this equipment. The services of a qualified technician should be employed through the medium of a
maintenance contract with a reputable service company.
Read this manual thoroughly before unit start-up. Units are assembled, pressure tested, dehydrated, charged in oil,
nitrogen shipping charge and run tested before shipment.
Warnings and cautions
Warnings and Cautions appear at appropriate sections throughout this manual. Your personal safety and the proper
operation of this machine require that you follow them carefully. The constructor assumes no liability for installations
or servicing performed by unqualified personnel.
WARNING! : Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION! : Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices or for equipment or property-damage-only accidents.
Safety recommendations
To avoid death, injury, equipment or property damage, the following recommendations should be observed during
maintenance and service visits:
1. The maximum allowable pressures for system leak testing on low and high pressure side are given in the chapter
«Installation». Always provide a pressure regulator.
2. Disconnect the main power supply before any servicing on the unit.
3. Service work on the refrigeration system and the electrical system should be carried out only by qualified and
experienced personnel.
Refrigerant
Use refrigerant provided by the manufacturer in order to ensure that it meets all the requirements of our units. When
using recycled or reprocessed refrigerant, it is advisable to ensure its quality is equivalent to that of a new refrigerant.
For this, it is necessary to have a precise analysis made by a specialized laboratory. If this condition is not
respected, the manufacturer warranty could be cancelled.
Environmental Protection / Compliance with F-Gas regulation
This equipment contains a fluorinated gas covered by the Kyoto Protocol [or an ozone depleting substance covered
by Montreal Protocol].The type of refrigerant is indicated on the product nameplate. The Global Warming Potential of
the refrigerant implemented in Trane Air Conditioning and Refrigeration Equipment is presented in the table by type
of refrigerant.
Refrigerant type GWP (1) value : R134a = 1 300
The operator (contractor or end user) must check local environmental regulations impacting installation, operation
and disposal of the equipment; in particular need to recover environmentally harmful substances (refrigerant, oil,
antifreeze agents, etc.) Do not vent into the atmosphere any refrigerant. The handling of refrigerant shall be fulfilled
by a qualified service engineer.
(1) GWP = global warming potential

© 2013 Trane RLC-SVX16A-E4
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Maintenance contract
It is strongly recommended that you sign a maintenance contract with your local Service Agency. This contract
provides regular maintenance of your installation by a specialist in our equipment. Regular maintenance ensures that
any malfunction is detected and corrected in good time and minimizes the possibility that serious damage will occur.
Finally, regular maintenance ensures the maximum operating life of your equipment. We would remind you that
failure to respect these installation and maintenance instructions may result in immediate cancellation of the
warranty.
Training
To assist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of
time, the manufacturer has at your disposal a refrigeration and air conditioning service school. The principal aim of
this is to give operators and technicians a better knowledge of the equipment they are using, or that is under their
charge. Emphasis is particularly given to the importance of periodic checks on the unit operating parameters as well
as on preventive maintenance, which reduces the cost of owning the unit by avoiding serious and costly
Reception
On arrival, inspect the unit before signing the delivery note.
On arrival, inspect the unit before signing the delivery note. Specify any visible damage 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 local TRANE
sales office at the same time. The delivery note must be clearly signed and countersigned by the driver. Any
concealed damage shall be notified by a registered letter of protest to the last carrier of the goods within 72 hours of
delivery. Notify the local TRANE sales office at the same time. Important notice: No shipping claims will be accepted
by TRANE if the above mentioned procedure is not respected.
Note: More stringent national rules can apply in some countries.
For more information, refer to the general sales conditions of your local TRANE sales office.
Loose Parts Inventory
Check all the accessories and loose parts that are shipped with the unit against the shipping list. Included in these
items will be water vessel drain plugs, rigging and electrical diagrams, and service literature, which are placed inside
the control panel and/or starter panel for shipment.
Warranty
Warranty is based on the general terms and conditions of the manufacturer. The warranty is void if the equipment is
repaired or modified without the written approval of the manufacturer, if the operating limits are exceeded or if the
control system or the electrical wiring is modified. Damage due to misuse, lack of maintenance or failure to comply
with the manufacturer’s instructions or recommendations is not covered by the warranty obligation. If the user does
not conform to the rules of this manual, it may entail cancellation of warranty and liabilities by the manufacturer.

© 2013 Trane RLC-SVX16A-E4
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Introduction 2
General data 5
Installation 7
Wiring 11
Operation 13
Maintenance 14
Installation checklist 15

© 2013 Trane RLC-SVX16A-E4
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Table 1 - RTAC-S High Efficiency Standard noise
(1) at 7°C Saturated suction temperature and 35°C outdoor ambient and condenser aluminum fins
(2) per motor
(3) per circuit
(4) Percent minimum load is for total machine at 7°C SST and 35°C ambient.
Size 120 130 140 155 170 185 200
Refrigerant R134a R134a R134a R134a R134a R134a R134a
Performances (1)
Gross cooling capacity(1) (kW) 459 509 559 607 657 729 802
Power input in cooling(1) (kW) 145 160 174 193 212 232 252
Main Power supply 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50
Compressor
Number 2 2 2 2 2 2 2
Type Screw Screw Screw Screw Screw Screw Screw
Nominal size C1 / C2 (Ton) 60/60 60/70 70/70 70/85 85/85 85/100 100/100
Liquid and Suction connection
Suction connection (Flange) Circuit 1 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8
Circuit 2 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8
Liquid connection (Brazed) Circuit 1 1"3/8 1"3/8 1"3/8 1"3/8 1"3/8 1"3/8 1"5/8
Circuit 2 1"3/8 1"3/8 1"3/8 1"3/8 1"3/8 1"5/8 1"5/8
Expansion valve type Electronic Electronic Electronic Electronic Electronic Electronic Electronic
Condenser Coil
Type Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube
Tube size (mm) 9.52 9.52 9.52 9.52 9.52 9.52 9.52
Qty 4 4 4 4 4 4 4
Height (mm) 1067 1067 1067 1067 1067 1067 1067
Length C1/C2 (mm) 3962 / 3962 4572 / 3962 4572 / 4572 5486 / 4572 5486 / 5486 6400 / 2486 6400 / 6400
Face Area C1/C2 (m2) 4.23 / 4.23 4.88 / 4.23 4.88 / 4.88 5.85 / 4.88 5.85 / 5.85 6.83 / 2.65 6.83 / 6.83
Rows # 3 3 3 3 3 3 3
Fins per inch (fpf) # 192 192 192 192 192 192 192
Fan Type Propeller Propeller Propeller Propeller Propeller Propeller Propeller
Number C1 / C2 4/4 5/4 5/5 6/5 6/6 7/6 7/7
Diameter (mm) 762 762 762 762 762 762 762
Drive type Direct Direct Direct Direct Direct Direct Direct
Speeds number 1 1 1 1 1 1 1
Air flow (m3/h) 27000 27000 25300 35900 37900 37900 54000
Motor HP (2) (kW) 1.57 1.57 1.57 1.57 1.57 1.57 1.57
Motor RPM (rpm) 915 915 915 915 915 915 915
Dimensions
Height (mm) 2411 2411 2411 2411 2411 2411 2411
Length (mm) 5041 5041 5041 5960 5960 6879 6879
Width (mm) 2260 2260 2260 2260 2260 2260 2260
Operating Weight (kg) 3658 3692 3693 4327 4549 5087 5165
Shipping Weight (kg) 3708 3742 3743 4377 4599 5137 5215
System Data
Refrigerant circuit 2 2 2 2 2 2 2
Capacity modulation (4) % 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100%
Unit refrigerant Charge (3)
Circuit 1 / 2 (kg) Split system Split system Split system Split system Split system Split system Split system

© 2013 Trane RLC-SVX16A-E4
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Table 1 - RTAC-S High Extra Efficiency Standard noise
(1) at 7°C SST and 35°C ambient 1.with aluminum condenser fins.
(2) per motor
(3) per circuit
(4) Percent minimum load is for total machine at 7°C SST and 35°C ambient.
Size 120 130 140 155 175 185 200
Refrigerant R134a R134a R134a R134a R134a R134a R134a
Performances (1)
Gross cooling capacity(1) (kW) 466 519 568 620 689 744 812
Power input in cooling(1) (kW) 142 157 173 190 209 229 250
Main Power supply 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50
Compressor
Number 2 2 2 2 2 2 2
Type Screw Screw Screw Screw Screw Screw Screw
Nominal size C1 / C2 (Ton) 60/60 60/70 70/70 70/85 70/100 85/100 100/100
Liquid and Suction connection
Suction connection (Flange) Circuit 1 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8
Circuit 2 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8 4"1/8
Liquid connection (Brazed) Circuit 1 1"3/8 1"3/8 1"3/8 1"3/8 1"3/8 1"3/8 1"5/8
Circuit 2 1"3/8 1"3/8 1"3/8 1"3/8 1"5/8 1"5/8 1"5/8
Expansion valve type Electronic Electronic Electronic Electronic Electronic Electronic Electronic
Condenser Coil
Type Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube
Tube size (mm) 9.52 9.52 9.52 9.52 9.52 9.52 9.52
Qty 4 4 4 4 4 4 4
Height (mm) 1067 1067 1067 1067 1067 1067 1067
Length C1/C2 (mm) 3962 / 3962 4572 / 3962 4572 / 4572 5486 / 4572 5486 / 5486 6400 / 2486 6400 / 6400
Face Area C1/C2 (m2) 4.23 / 4.23 4.88 / 4.23 4.88 / 4.88 5.85 / 4.88 5.85 / 5.85 6.83 / 2.65 6.83 / 6.83
Rows # 3 3 3 3 3 3 3
Fins per inch (fpf) # 192 192 192 192 192 192 192
Fan Type Propeller Propeller Propeller Propeller Propeller Propeller Propeller
Number C1 / C2 4/4 5/4 5/5 6/5 6/6 7/6 7/7
Diameter (mm) 762 762 762 762 762 762 762
Drive type Direct Direct Direct Direct Direct Direct Direct
Speeds number 1 1 1 1 1 1 1
Air flow (m3/h) 27000 27000 25300 35900 37900 37900 54000
Motor HP (2) (kW) 1.57 1.57 1.57 1.57 1.57 1.57 1.57
Motor RPM (rpm) 915 915 915 915 915 915 915
Dimensions
Height (mm) 2411 2411 2411 2411 2411 2411 2411
Length (mm) 5041 5041 5041 5960 6879 6879 6879
Width (mm) 2260 2260 2260 2260 2260 2260 2260
Operating Weight (kg) 3972 3885 3777 4498 4961 5376 5545
Shipping Weight (kg) 4022 3935 3827 4548 5011 5426 5595
System Data
Refrigerant circuit 2 2 2 2 2 2 2
Capacity modulation (4) % 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100% 17% to 100%
Unit refrigerant Charge (3)
Circuit A & B (kg) Split system Split system Split system Split system Split system Split system Split system

© 2013 Trane RLC-SVX16A-E4
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Recommended installation components are shown in Figure 1.
The system may be configured in any of the 3 arrangements shown in Figure 2.The configurations and their
associated elevations, along with the total distance between the remote evaporator and the compressor/condenser
section, play a critical role in determining suction and liquid line sizes. This will also affect field refrigerant and oil
charges. Consequently, there are physical limits which must not be violated if the system is to operate as designed.
Please note the following requirements for field installation:
1. The remote evaporator MUST be matched with its respective outdoor condensing unit.
2. The circuit number on the outdoor condensing unit must match the circuit number on the evaporator If the
circuits are crossed, serious equipment damage
3. Piping between the evaporator and outdoor unit can not exceed 60 meters actual and/or an equivalent length
of 90 meters (includes the equivalent length of all associated field installed fittings, valves, accessories and
straight lengths of interconnecting piping)
4. Horizontal portions of suction lines must be downward sloping toward the compressor with at least 0.4% of
slope.
5. Suction lines must be insulated.
6. Compressor &oil separator heaters must be on at least 24 hours prior to compressor start
The preferred configuration is to have condensing unit at the same level as Evaporator with shortest distance
possible.
Do not use a saw to remove end caps, as this may allow copper chips to contaminate the system. Use a tubing cutter
or heat to remove the end caps.
The outdoor unit and the evaporator are shipped with a 3 bar holding pressure of dry nitrogen. Do not relieve this
pressure until field installation of the refrigerant piping is to be accomplished. This will require the removal of the
temporary pipe caps.
The refrigerant lines must be isolated to prevent line vibration from being transferred to the building. Do not secure the
lines rigidly to the building at any point.
110VAC solenoid liquid valve is recommended upstream electronic expansion valve. Solenoid valve are not provided
by the factory.
Note: Although packaged unit condensers and evaporators are sized to hold complete refrigerant
Suction line Refrigerant piping design
Proper suction line sizing is required to guarantee that oil is returned to the compressor throughout the operating
system. Furthermore, the line must be sized so that the pressure drop does not excessively affect capacity and
efficiency. To accomplish both, it may be necessary to have 2 sizes, 1 for horizontal runs and vertical drops, and
another for the vertical lifts.
Horizontal portions of the suction lines must be horizontal or downward sloping to the compressors. The pitch of the
piping must be at least 12mm per 3meters of run (0.4%). Suction lines must be insulated.
Suction lines should be sized for a maximum of 2 to 3°F (1.1 to 1.7°C) pressure loss.
After commissioning, the suction superheat at compressor shall be measured. Superheat value shall be a minimum of
5K.
Liquid line Refrigerant piping design
Properly sizing the liquid line is critical to a reliable split-system application.
The recommended liquid-line sizing for each RTAC-S model based on its nominal capacity. Using the preselected
tube diameter to uniformly size the liquid line will maintain operating requirements.
Install the liquid line with a slight slope in the direction of flow so that it can be routed with the suction line.
A height limitation exists for liquid lines that include a liquid riser because of the loss of sub cooling that accompanies
the pressure loss in the height of the liquid column.
Again, system designs outside the application envelope of the RTAC-S unit require Trane review.
Install an inverted trap in the liquid line when the evaporator is below the compressor. The apex of the trap should be
at the same height as the top of the condenser coils.
Split systems have larger refrigerant charge than packaged chiller, it is recommended to add a liquid solenoid valve
(not supplied) at DX evaporator inlet, just upstream to the electronic expansion valve.
The solenoid valve, together with electronic expansion valve, will prevent refrigerant migration to the evaporator in
OFF mode
Field installed liquid filter is recommend before solenoid and expansion valve.
Avoid putting lines underground. Route refrigerant lines as short and direct as possible. Only insulate liquid line in
heated area.
RTAC-S operates with one electronic expansion valve per refrigerant circuit. Correct refrigerant distribution
into the coil requires a single distributor per refrigerant / expansion valve.

© 2013 Trane RLC-SVX16A-E4
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DX evaporator
Electronic
expansion
Valve
With
integrated
sight glass
Liquid
Solenoid
valve
Liquid filter
RTAC-S
Oil separator
Condenser
coil
Service
valve
Liquid filter
Liquid shut off
valve
Suction shut off
valve
Screw
Compressor
Discharge line
Suction line
Liquid line
Figure 1
–
Typical
piping
installation

© 2013 Trane RLC-SVX16A-E4
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Figure
2
-
Piping arrangement considerations
DX evaporator
Air handler
RTAC-S
Condensing unit
DX evaporator
Air handler
RTAC-S
Condensing unit
DX evaporator
Air handler
RTAC-S
Condensing unit
Units at same level
RTACS below Evaporator
RTACS above Evaporator
Liquid line
Suction line
Liquid line
Suction line
Liquid line
Suction line
Slope 0.4%
Slope 0.4%
Slope 0.4%
Slope 0.4%
Slope 0.4%
(1)
Max 15m
(1) Note: If a suction riser is properly sized, oil will return to the compressor regardless of whether a trap is
present. If a suction riser is oversized, adding a trap will not restore proper oil entrainment.

© 2013 Trane RLC-SVX16A-E4
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Unit is shipped with Nitrogen charge. In order to estimate the refrigerant charge of each circuit, proceed with
following calculation :
R134a system charge = ACCUKG + PIPEKG + EVPKG
With :
ACCUKG = Refrigerant content of RTAC-S unit (Table 2)
PIPEKG = Sum of kg of R-134a added for field-installed piping : Suction + liquid line (Table 3)
EVPKG = DX Evaporator refrigerant charge.
The following calculation is a rough estimation, proper field charge adjustment shall be done to reach at least 5°K of
refrigerant sub cooling at inlet of evaporator electronic expansion valve.
Table2 – Unit only refrigerant charge content
Table3 – Interconnecting line refrigerant charge content
Oil Charge Determination
The unit is factory charged with the amount of oil required by the system, without the field-installed piping.The amount
of the additional oil required is dependent upon the amount of refrigerant that is added to the system for the field
installed piping. Use the following formula to calculate the amount of oil to be added:
Liter of Oil = PIPEKG x 0.00959
For oil charge adjstument, use only Trane approved oil : OIL0023E (can 5 gal. / 19 liters) – OIL0048E(can 5 gal. / 3.8
liters)
Leak Test and Evacuation
After installation of refrigerant piping, thoroughly test the system for leaks. Pressure test system at pressures
required by local codes.
For field evacuation, vacuum operation should be conducted to a level of 0.7mbar. Once 0.7mbar vacuum pressure
is reached and vacuum pump is stopped, the pressure should not raise more than 1mbar after 15 minutes elapsed
time. The line used to connect the pump to the system should be copper and be the largest diameter that can be
practically used. A larger line size with minimum flow resistance can significantly reduce evacuation time. Use the
ports on the suction service valves and the liquid line shutoff valves for access to the system for evacuation. Ensure
that the suction service valve, the liquid line shutoff valve, the oil line shutoff valve and any field installed valves are
open in the proper position before evacuating. Insulate entire suction line and suction accumulator line. Where line
is exposed, wrap with weatherproof tape and seal with weatherproof compound.
Important note: These operations have to be performed by a specialist according to the rules of the art. The
results have to be written on a startup record by the Trane engineer or the client’s specialist who has performed this
start up. The quantity of refrigerant and oil added has to be checked by client.
High Efficiency unit
Size 120 130 140 155 170 185 200
R134a Content Circuit1 (kg) 32 37 36 56 58 55 57
R134a Content Circuit2 (kg) 32 33 36 51 58 52 57
Extra Efficiency units
Size 120 130 140 155 175 185 200
R134a Content Circuit1 (kg) 50 57 56 73 85 85 87
R134a Content Circuit2 (kg) 50 51 56 56 52 55 87
Tube OD Suction line Liquid line
1" 3/8 N/A 0.0929 kg/m
1" 5/8 N/A 0.1314 kg/m
2" 1/8 N/A 0.2286 kg/m
2" 5/8 N/A 0.3526 kg/m
3" 1/8 0.0074 kg/m N/A
3" 5/8 0.0101 kg/m N/A
4" 1/8 0.0131 kg/m N/A
kg of R134a per meter of copper line

© 2013 Trane RLC-SVX16A-E4
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Control wiring
Typical field wiring is shown in Figure 3
Unit commissioning shall be done by Local Trane technician in order to properly setup connected LLID (Low Level
Intelligence Device).
Item factory provided, loose supplied with RTAC-S unit are the following LLID devices:
2 temperature sensors: 1 return air Temperature + 1 leaving air Temperature
2 electronic expansion valves: 1 Circuit #1 EXV+ 1 Circuit #2 EXV
Temperature sensor and EXV has to be connected with LLID connectors.
Link between evaporator temperature sensor / EXV and the RTAC-S unit should be a 4x1mm² copper conductor,
shielded cable. The sensor’s and EXV’s circuit wires should not be run in close proximity to any power or line voltage
wiring. The splices at the evaporator level should be water tight. The wire run should be physically supported at equal
intervals with consideration for safety and reliability/durability with wire ties or similar to meet
local codes.
Possible LLID connectors for Temperature and EXV connection:
Part number
Description
Purpose
CAB01146 2-Y short, male to female/female , 0.5 meter Bus cable extension, pluggable
CAB01147 2-Y short, male to female/female , 1 meter Bus cable extension, pluggable
CAB01148 3-Y, male to 3 female , 0.5 meter Bus cable extension, pluggable
CAB01149 Short extension male to female, 1 meter Bus cable extension, pluggable
CAB01150 Short extension male to female, 2 meters Bus cable extension, pluggable
Solenoid valves and other connectors/cables has to be ordered separately.
Liquid Solenoid valve shall be 110V AC rated.
Power wiring
Disconnect switch and power wiring selection follows same rules as RTAC equivalent chiller. Refer to RTAC IOM ref
RLC-SVX02.

© 2013 Trane RLC-SVX16A-E4
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DX evaporator
Air handler
RTAC-S
Condensing unit
Electronic
Expansion valve
2 Liquid Solenoid Valves
(Rating 110VAC)
CH530 LLID cable
4x1mm² copper wire shielded cable
Unit
Control
panel
Return Air
Temperature sensor
Leaving Air
Temperature sensor
Circuit #1
Circuit #2
LLID connectors
Airflow status (fan fail switch)
(rating 110VAC – 1mA)
Figure
3
–
Field control wiring

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Unit operation procedure is identical as RTAC Chiller (Refer to RTAC IOM ref RLC-SVX02)
Control System
The unit capacity control is identical as for the chiller version. Water temperature values have to be interpreted as
evaporator air temperatures,especially through BAS data point list interpretation:
- Entering water temperature is replaced by evaporator entering air dry bulb temperature.
- Leaving water temperature is replaced by evaporator leaving air dry bulb temperature.
- Water flow switch by fan status switch.
Seasonal shutdown
- If the unit needs to be shut down for a short period of time, push the «stop» button of the module.
- Carry out leak test.
- Carry out oil analysis
- Record operating pressures, temperatures, amperages and voltage.
- Check operation of machines/compare conditions of operation against original commissioning data.
- Push the «stop» button of the module.
- Insure that all safeties are taken to protect the compressor against refrigerant migration.
- Fill out the visit log sheet and review with the operator.
- Do not put the general and control disconnect switches to off.
Seasonal start-up
- Check operational set points and performance.
- Calibrate controls.
- Check operation of all safety devices.
- Inspect contacts & tighten terminals.
- Megger the motor compressor windings.
- Record operating pressures, temperatures, amperages and voltage.
- Carry out leak test.
- Check configuration of unit control module.
- Change the oil as required based upon results of the oil analysis made during seasonal shutdown
- Check operation of machines/compare conditions of operation against original commissioning data.
- Fill out the visit log sheet and review with the operator

© 2013 Trane RLC-SVX16A-E4
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The following maintenance instructions are part of maintenance operations required for this equipment. A qualified
technician is needed for regular maintenance as part of a regular maintenance contract.
Carry out all operations as required by schedule. This will insure long unit service life and reduce the possibility of
serious and costly breakdown.
Keep service records up to date, showing monthly information on unit operations.
These records can be of great help to maintenance personnel diagnostics. Similarly, if machine operator keeps a log
of changes in unit operating conditions, problems can be identified and solutions found before more serious problems
arise.
Inspection visit after the first 500 hours of operation from unit start up
- Carry out oil analysis.
- Carry out leak test.
- Inspect contacts and tighten terminals.
- Record operating pressures, temperatures, amperages and voltage.
- Check operation of machines/compare conditions of operation against original commissioning data.
- Fill out inspection visit log sheet and review with the operator
Monthly preventive visit
- Carry out leak test.
- Oil test of acidity.
- Inspect contacts and tighten terminals.
- Record operating pressures, temperatures, amperages and voltage.
- Check operation of machines/compare conditions of operation against original commissioning data.
- Fill out visit log sheet and review with the operator.
Annual preventive visit
- Check operational set points and performance.
- Calibrate controls.
- Check operation of all safety devices.
- Inspect contacts & tighten terminals.
- Megger the motor compressor windings.
- Record operating pressures, temperatures, amperages and voltage.
- Carry out leak test.
- Check configuration of unit control module.
- Carry out oil analysis
- Change the oil as required based upon results of the oil analysis
- Check operation of machines/compare conditions of operation against original commissioning data.
- Fill out the annual start up visit log sheet and review with the operator.
Caution
- Please refer to specific Trane documentation on oil, available from your nearest Trane office. Oils recommended by
Trane have been exhaustively tested in Trane laboratories to the specific requirement of Trane unit and hence the
user’s requirements.
Any use of oils not meeting specifications recommended by Trane is the responsibility of the user only, who thereby is
liable to warranty loss.
- Oil analysis and oil test acidity must be carried out by a qualified technician. Poor interpretation of results may cause
unit operating problems. Also, oil analysis must follow the correct procedures, to avoid accidental injury to
maintenance personnel.
- If the condensers are dirty, clean them with a brush. If the coils are too dirty, consult a cleaning professional. Never
use water to clean condenser coils.
- Contact Trane for information on maintenance contracts.
Warning
- Switch off unit main power supply before to any intervention. Failure to follow this safety instruction can lead to
accident death of the maintenance personnel and may also destroy equipment.
- Never use steam or hot water above 55°C to clean condenser coils. The resulting increasing pressure could cause
refrigerant loss.

© 2013 Trane RLC-SVX16A-E4
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RTAC-S Trane Air Cooled Condensing Unit
This list must be checked off by the installer to ensure correct installation before the unit starts up.
Unit acceptance
Check for damage, if any, on transportation
Check for equipment shipped against delivery slip
Check lifting system
Unit positioning
Remove packaging
Check position of unit
Check unit is level
Check clearance around condenser
Check clearance required for maintenance access
Check position of rubber pads
Refrigerant circuit
Check filter dryer and sight glass presence
Check pitch for horizontal lines (>0.4cm/m)
Check R134a refrigerant presence
Electrical equipment
Check direction of rotation of compressors and fan motors
Check installation and rating of mains power switch/fuse
Check that electrical connections comply with specification
Check that electrical connections match information on manufacturer’s identification plate
Check electrical connections and connections to mains power switch
General
Check available cooling charge (50% of rated installation load)
Check with other trades handling installation works
Comments:.........................................................................................................................................................................
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Signature: ................................................. Name..............................................................................................................
Order N°.............................................................................................................................................................................
Work site:...........................................................................................................................................................................
Please return to your local Trane Service Office.

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the
leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad
portfolio of advanced controls and HVAC systems, comprehensive building services, and parts.
For more information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2013 Trane All rights reserved
RLC-SVX016-E4 March 2013