Table of Contents
Advertisement
Charging additional refrigerant
Module installation
Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side
the outdoor PCB.
If you use the refrigerant charging function from the PCB, outdoor unit will operate and charge the
refrigerant. At this time, you must use gas side manifold gauge for cooling operation and use charging
port for heating at the manifold gauge for heating operation.
(Inject liquid
refrigerant)
Scale
• Open the gas side and liquid side service valve completely after charging the refrigerant. (If you
CAUTION
• Put on safety equipment when charging refrigerant.
• Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV
kits.
•
the product to prevent personal injury.
•
speed up the charging process. There is risk of explosion.
•
port for heating.
• Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there
Using service valve for gas
After charging the refrigerant, close all caps as shown in the
illustration.
Tightening torque for the cap of refrigerant charging port
Opening/closing torque for the valve
-
82
Outdoor unit
Manifold gage
Gas
side
Liquid side pipe
Vacuum port
Outdoor unit
Liquid side
Service valve
Cap for the control part
Cap for the refrigerant
charging port
Advertisement
Table of Contents
