Trane MCX512 G1 User manual

Installation Manual
April 2009 MS-SVN15B-EN
Cooling Only Cooling Only
with Electric
Heater
Heat Pump
MCX512 G1 MCX512G1E MWX512 G1
MCX518 G1 MCX518G1F MWX518 G1
MCX524 G1 MCX524G1B MWX524 G1
MCX530 G1 MCX530G1H MWX530 G1
MCX536 G1 MCX536G1J MWX536 G1
MCX042 G1 MCX042G1J MWX042 G1
MCX048 G1 MCX048G1K MWX048 G1
MCX060 G1 MCX060G1L MWX060 G1
NEW STYLUS
Split System, 1-5 Tons
Convertible Type
MCX/MWX Series 60 Hz

Preface
© 2009 Trane All rights reserved MS-SVN15B-EN
General Information
This Installation Manual is given as a guide to good practice in the installation by the installer of
MCX 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 these Installation Instructions completely before installing the air conditioning system.
About this Manual
Warnings and Cautions appear at appropriate places in this Instruction Manual. Your personal
safety and the proper operation of this machine depend upon the strict observance of these
precautions.
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.
WARNING
Grounding Required!
Follow proper local and state electrical code on requirements for grounding. Failure to
follow code could result in death or serious injury.
About the Unit
These MCX/MWX units are assembled, pressure tested, dehydrated, charged and run tested
before shipment. They are charged with nitrogen, and could be used in applications with R-22
and R-410A refrigerant. For further information on refrigerant and piping connections refer to the
outdoor unit manual or contact your Trane local office.
The information contained in this manual applies to MCX/MWX units are designed to operate in
cooling mode only (MCX) and in cooling or heating modes (MWX).
Trane MCX/MWX series of mini-split systems offer three styles of installation: floor, low wall and
under ceiling with both LCD wireless remote control or wired control. Trane MCX/MWX series
provide flexibility and savings.
Note: For model MCX/MWX 042, MCX/MWX 048 and MCX/MWX 060, there are only two styles
of installation: under ceiling and low wall.
NOTICE: Warnings and Cautions appear at appropriate sections throughout this
literature. Read these carefully.
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, could
result in minor or moderate injury. It may also be used to alert against unsafe practices.
NOTICE:Indicates a situation that could result in equipment or property-damage only
accidents.

Preface
MS-SVN15B-EN 3
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.
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.

4MS-SVN15B-EN
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location and Preparation of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connection of Refrigerant Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Condensate Drain Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Remote Control Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Typical Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Contents

MS-SVN15B-EN 5
Note: For models MCX/MWX 042, MCX/MWX 048, MCX/MWX 060 there are only two styles of
installation: under ceiling and low wall
Typical Installation
Ceiling
mounted
Outdoor unit
Indoor unit
Floor mounted
Return air grille contains air lter
Refrigerant tubing/wiring
Drain
Returnair grille
contains air lter
Supply air grille
Adjustable louvers direct air
Supply air grille
Adjustable louvers direct air
Low wall mounted

6MS-SVN15B-EN
1. Select an appropriate position that allows every corners of the room to be uniformly air
conditioned and where it is easy to route the refrigerant tubing.
2. Ensure that the floor or ceiling construction is sufficient to fully support the weight of the
indoor unit.
3. Consideration must be given to assure an unobstructed flow of supply and return air.
4. Refrigerant tubes between indoor and outdoor units should be as short as possible.
5. Length of the condensate drain hose should be kept as short as possible (Figure 1).
6. Recommended service clearance as shown in figure 2, 3 and 4.
Location and Preparation of Units
Figure 1.
Figure 2.
Figure 3.
Maintenance area
(Celling mounted)
Min.
30 cm.
Min.
20 cm.
Min.
20 cm.
Min.
30 cm.
Min.
20 cm.
Maintenance area
(Floor mounted)

MS-SVN15B-EN 7
Location and Preparation of Units
7. Do not install unit in direct sunlight or near other heat sources as this may affect
performance. Do not allow outside air to directly enter unit or condensate may form at the
unit’s discharge.
Note: For MCX/MWX 042-060, the unit should be installed over the floor at least 20 cm.
Figure 4.
Min. 120 cm.
Min.
30 cm.
Min.
20 cm.
Min.
20 cm.
Maintenance area
(Low wall mounted)

8MS-SVN15B-EN
Indoor Unit
1. Select a location to route tubing, wiring and drain pipe between the indoor and outdoor units.
2. Make a hole in the wall using a key hole saw or hole-cutting drill attachment.
The hole should be made at a slight downward slant to the outdoor side (Figure 5).
Before cutting, check that no pipes or studs are directly behind the place to be cut. Avoid
areas where electrical wiring or conduits are located.
3. Place the unit on a solid and level foundation.
4. Tubing, wiring through and drain pipe of low wall and floor mounted units can be routed,
rear or right side of unit when facing front. Ceiling mounted can be routed straight
downward.
5. Pull air filters upward (Figure 6).
6. Unscrew at the return grille (Figure 7).
Unit installation
Figure 1.
Figure 2.
Figure 3.
Indoor side
Outdoor side
Pull
Pull

MS-SVN15B-EN 9
Unit installation
7. Unscrew at the grille bottom hinges, pull out the screw, and unscrew at the side panel front
(Figure 8). Then, push down on the side panel front and pull up (Figure 9).
Note: A= 0.49" x 1.575" - 4 SLOT (Mounting hole) (12.5 mm 40.0 mm)
Figure 4.
Figure 5.
Figure 6.
Unit Size B
MCX/MWX 512-518 36.2" (920)
MCX/MWX 524 46.1" (1,170)
MCX/MWX 530-536 55.9" (1,420)
MCX/MWX 042-048 65.7" (1,670)
MCX/MWX 060 75.6" (1,920)
0.83"(21)
0.83"(21)
8.5"(215)
B
A

10 MS-SVN15B-EN
Unit installation
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper center of gravity lift point. To
avoid dropping of unit, reposition lifting point if unit is not level. Failure to properly lift
unit could result in death or serious injury or possible equipment or property-only
damage.
8. Place or hang the unit at the selected position.
9. Replace both right and left side panels, and the return grille after the installation of wiring,
tubing and piping is complete.
Outdoor Unit
See the proper installation method provided in the Installation Manual for the outdoor unit.