Trane R-22 User guide

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MS-SVN21A-EN
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R22, 50 & 60Hz
9,000 to 30,000 BTU/Hr
2010

Warnings and Cautions
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MS-SVN21A-EN
contain all the service procedures for this unit ,as these procedures must be performed by a qualified
service technician,through the maintenance contract with a reputable service company.

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MS-SVN21A-EN
6

Indoor Unit
WARNING
Adequate Support!
Wall structure must be adequate to support the weight of the unit. Failure to ensure
adequate structural support could result in unit falling from its location which could
result in death, serious injury, or equipement or property-only damage.
1. The air inlet and outlet should be far away from anything that could prevent the air from
reaching all parts of the room.
2. Select a location where it is easy to drain the condensing water and connect to the outdoor
unit;
3. Keep the indoor unit far away from heat sources, vapor and inflammable gas;
4. Be sure that the installation of the indoor unit conforms to the installation dimension
diagram;
5. Be sure to leave enough space to allow access for routine maintenance; clearance between
the indoor unit and the floor should
6. Install in a location where the ay from other electric appliances
such as television, audio devices etc.;
7. Select location where air filters can be easily removed
Outdoor unit
WARNING
Adequate Support!
Wall structure must be adequate to support the weight of the unit. Failure to ensure
adequate structural support could result in unit falling from its location which could
result in death, serious injury, or equipement or property-only damage.
1. Select a location from which noise and air discharge by unit will not annoy neighbors.
2. Select a location where there is sufficient ventilation.
3. Make sure the air inlet and outlet are not blocked by any obstacles.
4. Select a location capable of supporting the weight and vibration of the outdoor unit, and
where installation work can be carried out safely.
5. Select a location away from flammable gas or gas leaks.
6. Make sure that the installation of the outdoor unit conforms to the installation dimension
diagram.
NOTICE
Installing the unit in one of the following locations could result in unit malfunction:
• Places where oil (machine oil) is used
• Seaside/places with high level of salt in the air.
• Places with high level of sulfur gas such as areas with hot springs.
• Places where high-frequency waves are generated by radio equipment, welders and medical
equipment.
• Other unusual places where unit operation may be altered.
Installation location
be more than 7 feet.
unit is more than 3 feet aw
MS-SVN21A-EN 7

Indoor Unit Installation
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this section of the
manual could result in exposure to electrical, mechanical or other potential safety
hazards. Always refer to the safety warnings provided throughout this manual
concerning these procedures. When possible, disconnect all electrical power including
remote disconnect and discharge all energy storing devices such as capacitors before
servicing. Follow proper lockout/tagout procedures to ensure the power can not be
inadvertently energized. When necessary to work with live electrical components, have
a qualified licensed electrician or other individual who has been trained in handling live
electrical components perform these tasks. Failure to follow all of the recommended
safety warnings provided, could result in death or serious injury.
Mounting Location
1. Always mount the rear panel horizontally.
2. Fix the rear panel on the selected location
3. Be sure that the rear panel has been fixed firmly enough to withstand the weight of an adult
thermore, the weight should be evenly shared by each screw.
Drilling a hole in the wall to install the piping
The piping can be connected in six different locations on the unit, as shown on figure below:
1. Drill a 65mm diameter hole in the wall at a slight downward angle toward the outdoor side in
such a way that the end of the pipe outside is 5 mm lower than the inside.
2. Insert a sleeve into the hole to prevent the connection piping and wiring from being damaged
when passing through the hole.
Installation
Left downward
Left
Rear Left
Right Downward
Rear Right
Right
of 140lbs,fur
MS-SVN21A-EN
8

Installation
NOTICE
When a wall sleeve is not used, it is then necessary to drill a straight hole in the wall. If
the hole is not straight and uniform, this could result in water leaking from
condensation, resulting in property damage.
NOTICE
If a wall sleeve is not mounted in the wall, the wiring between the indoor unit and the
outdoor unit can possibly be damaged resulting in electrical current loss in the ground
wiring.
Installing the water drain pipe
NOTICE
Do not wrench or bend the drain hose and make sure the ends of the drain pipe are not
under water. Failure to do so could result in leakage.
1. To ensure proper water drainage, the drain hose should be placed at a downward slant.
2. The water drain pipe must be insulated throughout the house.
Installing the unit
Note: The piping can be lead out from right, right rear, left, left rear.
1. When routing the piping and wiring from the left or right side of indoor unit, cut off the
tailings from the chassis in necessary.
(1).Cut off the tailings 1 when routing the wiring only;
(2).Cut off the tailings 1 and tailings 2 when routing both the wiring and piping.(or 1,2,3)
Under water
Bent
Wrenched
sleeve
MS-SVN21A-EN 9

Installation
2. Take out the piping from body case, wrap the piping electric wire, water pipe with tape and
put them through the piping hole.
3. Hang the mounting slots of the indoor unit on the upper tabs of the rear panel and check if it
is firm enough.
Installing the connection pipe
1. Align the center of the piping flare with the relevant valve.
2. Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench refer
to the following.
Note: First, connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the
piping bending, do not damage the connection pipe; the joint nut couldn't tighten too
much, otherwise it may cause leakage.
Table 2. Tightening Torque Table
Hex nut Diameter Tightening torque (N-m)
6mm - 1/4" 15-20
9.5mm - 3/8" 31-35
12mm - 1/2" 50-55
16mm - 5/8" 60-65
MS-SVN21A-EN
10