Precautions For R-407C Outdoor Units; Liquid Receiver Fusible Plug; System Pressure Measurement; Explanation Of Toshiba Serial Number - Toshiba HFCR407C Service Manual

Precautions for R-407C outdoor units

1

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
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.
4 8 0
Site of Model batch serial number
manufacture
8 = Plymouth
Introduction
Precautions
0 0 1
6
Position of
fusible plug
Low pressure
access port
High pressure
access port