6
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Installation
Installer reference guide
25
FNA25~60A2VEB(9)
Split system air conditioners
4P550955-3C – 2020.12
6 Installation
6.1 Overview: Installation
This chapter describes what you have to do and know on-site to install the system.
Typical workflow
Installation typically consists of the following stages:
1
Mounting the outdoor unit.
2
Mounting the indoor unit.
3
Connecting the refrigerant piping.
4
Checking the refrigerant piping.
5
Charging refrigerant.
6
Connecting the electrical wiring.
7
Finishing the outdoor installation.
8
Finishing the indoor installation.
6.2 Mounting the indoor unit
6.2.1 Precautions when mounting the indoor unit
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
General safety precautions
▪
Preparation
6.2.2 Guidelines when installing the indoor unit
INFORMATION
Optional equipment.
When installing optional equipment, also read the installation
manual of the optional equipment. Depending on the field conditions, it might be
easier to install the optional equipment first.
▪
Wall or floor strength.
Check whether the wall or the floor is strong enough to
support the weight of the unit. If there is a risk, reinforce the wall or the floor
before installing the unit.
▪
Suspension bolts.
Use W3/8 M10 suspension bolts for installation. Attach the
hanger bracket to the suspension bolt. Fix it securely using a nut and washer
from the upper and lower sides of the hanger bracket.
A
a
a
b
c
B
d
A
Securing the hanger bracket
B
Securing the washers
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