Service manual

. Caution :

• To prevent condensation from dripping on the thermistor fasteners, wrap them with sufficient thermal insulation.

• Install the thermistors so that the piping is on top (as shown in above illustration).

• Take out the thermistor lead from above the piping.

• Install the thermistors indoors.

• Route the following lead, line, and cable pairs so that they do not come into contact with each other.

-Thermistor lead and indoor unit-R-Converter transmission line

-Thermistor lead and power supply cable

-Transmission line and power supply cable

1-5-3. Installing the thermistors (mm)

Be sure to install the thermistors (gas and liquid) supplied with the unit as shown in the illustration.

• If the thermistors are not installed, the unit will not operate. If the thermistors are installed incorrectly, the unit will not operate

properly.

Take precaution so that condensation does contact the thermistor leads or enters the electrical devices.

Before installing thermal insulation to the frame connecting points of the indoor unit, be sure to install the thermistors

according to the procedures given on this page.

Thermistor installation order

(1) Securely fasten the thermistors (liquid and gas) supplied with the unit using the thermistor holders (3, 4, 5, 6) at the

fastening points of indoor unit refrigerant pipes.

Select thermistor holders that match the size of the

refrigerant piping.

Liquid

Gas

• Set thermistor-L (liquid) in thermistor holders 3 or 4 and thermistor-G (gas) in thermistor holders 4, 5 or 6, and then

fasten the refrigerant pipes.

Indoor unit capacity pipe size (mm)

BTU

07, 09

12, 13

24, 30

1.6

2.5

Liquid

{6.35

{9.52

Gas

{9.52

{12.7

{15.88

OC296--1.qxp 03.6.11 9:36 AM Page 6