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Precautions for R-407C outdoor units
Liquid receiver fusible plug
In the event of the system being subjected to abnormal conditions it is protected by a fusible plug,
positioned on the liquid receiver, within the outdoor unit. It is rated to fail at 70°C.
System pressure measurement
To measure the system's high and low pressures, connect a gauge manifold to the corresponding access
port as indicated below.
Explanation of Toshiba serial number
A serial label is attached to all Toshiba air conditioning units. Located on the label is an 8-digit number,
which represents the month, year and batch number of the manufactured unit. A breakdown of the 8-digit
number is defined below.
2
4
4
Year of
Month of
manufacture
manufacture
2001 = 1
41 = Jan.
2002 = 2
42 = Feb.
2003 = 3
43 = Mar.
44 = Apr.
45 = May
46 = Jun.
47 = Jul.
48 = Aug.
49 = Sep.
50 = Oct.
51 = Nov.
52 = Dec.
Introduction
Precautions
8
0
0
Site of
Model batch serial number
manufacture
8 = Plymouth
0
1
Position of
fusible plug
Low pressure
access port
High pressure
access port
5
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