Trane 5MXCA003AC6HCA - Optional TXV Kit Installation

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4.2 Optional TXV Kit Installation
1.Use a wrench to loosen the nut and remove the sealing
flange and sealing gasket.
2.Take out the connecting pipe from accessory package
and braze the connecting pipe onto the refrigeration-out
pipe.
3.Install the sealing washers, TXV and flange connection
tube.
4.Use a wrench fasten nut and connecting pipe. (30±3
N·m).
5.Connect TXV equalizer pipe to the port on the
connecting pipe.
6.Fix bulbs on the connecting pipe using use accessory in
TXV kit.
Reference TXV kit literature for installation instructions.
Fig 4-2
A TXV may be required to achieve minimum efficiency
ratings or for long refrigerant line set applications.
Reference AHRI for system combination ratings.
Reference the outdoor unit installation guide to charge
the system when using a TXV.
Table 4-1 Factory installed piston size for each coil
model. Additional piston sizes are provided in the
ship-with literature bag as necessary.
Psiton/orifice sizes
5MX
Model
CA003
CB004
CC005
CB006
CC007
CD008
CC009
CD010
49
X
X
X
47
X
X
X
56
X
X
X
60
X*
X*
X*
X
X
X
63
X
X
X
X
X
X
68
X
X
X
X
X
X
X
X
72
X
74
X
X
80
X
X
88
X*
X*
* means that this piston is pre-installed
Failure to install the proper piston can lead to poor
system performance and possible compressor
damage.
CAUTION
An improperly charged system will likely cause
loss in system performance and may damage
the compressor.
CAUTION
Please use the nut joint and a new outer O-ring
and sealing flange that comes with the machine,
which meet the ISO 14903 certification.
Otherwise, there is a risk of refrigerant leakage
and causing danger.
WARNING
The Piston Size in Table 4-2 is only recommended
size, and the specific value should be subject to
the requirements of outdoor unit.
WARNING
Table 4-2
Outdoor Unit
Capacity (Tons)
Piston
Size* (R454B)
47
56
60
63
68
72
80
1.5
2
2.5
3
3.5
4
5
Outdoor Unit
Capacity (Tons)
TXV kit part numbers
5AYTXVH3A1836A
5AYTXVH3A1836A
5AYTXVH3A1836A
5AYTXVH3A1836A
5AYTXVH3A4248A
5AYTXVH3A4248A
5AYTXVH3A6000A
1.5
2
2.5
3
3.5
4
5
*Piston size needed for system combination may not be
pre-installed.
See Table 4-1 for pre-installed size.
XX
XX
XX X*
X*
X*
X
Table 4-3 The TXV kit part numbers needed for system