Recommended Location Of Ball Valves; Opening And Closing The Valve; Installing Thermal Insulation; When Adding Ball Valve For Indoor Unit - Sanyo SPW-CR365GXH56 Technical Data Manual

2. System Design

3. Opening and closing the valve

This valve is open at the time of shipment from the
factory. If the valve is used for extension, be sure to
close it.
2

4. Installing thermal insulation

The thermal insulation used for a flare-nut type
valve is in the form of a bag. When the valve is
used for extension, it can be used as-is. If the valve
is used for any other purpose, use a box cutter or
similar tool to cut away the part shown in the figure
at right.
The insulation is divided into 2 parts. After
performing the leak test, use vinyl tape or other
means to temporarily fasten the 2 parts together.
Then carry out final finishing.

2-14. Recommended Location of Ball Valves

G
Select a valve location that allows service to be easily provided for each unit or each refrigerant system.

(1) When adding ball valve for indoor unit

Outdoor unit
Main tube
Less than 40 cm
1. Location: Install the ball valve at the distribution tube (not main tube).
2. Installation requirements
• Be sure to install the ball valve up-grade to prevent the inadvertent flow of oil.
• Install the ball valve at the shortest distance (within 40 cm) from the main tube. If the diameter of the ball
valve is smaller than that of the main tube, use a reducer or the like to reduce the size of the tubing at that
location.
• Select a place where it is easy to operate, using careful consideration of the location in advance.
Valve opened
Spindle
Distribution joint
Distribution tube
Ball valve (for extension)
Indoor unit for extension
Design of Mini ECO-i SYSTEM
Valve closed
Spindle
Insulator
Main tube
2 - 24
Notch
Distribution tube
Ball valve (for extension)
Indoor unit for extension