5 Preparation
Installer reference guide
7
AZQS100~14 AZQS100~140B7Y1B
Split system air conditioners
4P3855291 – 2014.08
4.3
Combining units and options
4.3.1
Possible options for the outdoor unit
Demand adaptor kit
Can be used for the following:
▪ Low noise: To lower the operation sound of the outdoor unit.
▪ Idemand function: To limit the power consumption from the
system (example: budget control, limit power consumption during
peak moments…).
Model
Demand adaptor kit
AZQS_Y1
KRP58M51
AZQS_V1
KRP58M51MK
For installation instructions, see the installation manual of the
demand adaptor kit.
5
Preparation
5.1
Overview: Preparation
This chapter describes what you have to do and know before going
onsite.
It contains information about:
▪ Preparing the installation site
▪ Preparing the refrigerant piping
▪ Preparing the electrical wiring
5.2
Preparing installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit must be covered.
Choose the installation location with sufficient place for carrying the
unit in and out of the site.
5.2.1
Installation site requirements of the
outdoor unit
INFORMATION
Also read the following requirements:
▪ General installation site requirements. See the "General
safety precautions" chapter.
▪ Service space requirements. See the "Technical data"
chapter.
▪ Refrigerant
piping
requirements
(length,
height
difference). See further in this "Preparation" chapter.
Mind the following:
▪ Select a place where rain can be avoided as much as possible.
▪ Take care that in the event of a water leak, water cannot cause
any damage to the installation space and surroundings.
▪ Choose a location where the hot/cold air discharged from the unit
or the operation noise, will NOT disturb anyone.
▪ Heat exchanger fins are sharp and injury is possible. Choose an
installation location where there is no risk for injury (especially in
areas where children play).
Do NOT install the unit in the following places:
▪ Sound sensitive areas (e.g. near a bedroom and the like), so that
the operation noise will cause no trouble.
Note: If the sound is measured under actual installation
conditions, the measured value might be higher than the sound
pressure level mentioned in Sound spectrum in the data book due
to environmental noise and sound reflections.
INFORMATION
The sound pressure level is less than 70 dB(A).
▪ In places where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and fall
off or cause water leakage.
It is NOT recommended to install the unit in the following places
because it may shorten the life of the unit:
▪ in coastal areas or other places where the air contains high levels
of salt. Corrosion may occur,
▪ where the voltage fluctuates a lot,
▪ in vehicles or vessels,
▪ where acidic or alkaline vapour is present.
When the outdoor unit is subject to windy and/or low ambient
temperatures, mind the following guidelines:
Strong winds (≥18 km/h) blowing against the outdoor unit’s air outlet
causes short circuit (suction of discharge air). This may result in:
▪ deterioration of the operational capacity;
▪ frequent frost acceleration in heating operation;
▪ disruption of operation due to decrease of low pressure or
increase of high pressure;
▪ a broken fan (if a strong wind blows continuously on the fan, it
may start rotating very fast, until it breaks).
It is recommended to install a baffle plate when the air outlet is
exposed to wind.
It is recommended to install the outdoor unit with the air inlet facing
the wall and NOT directly exposed to the wind.
a
b
c
b
a
Baffle plate
b
Prevailing wind direction
c
Air outlet