Daikin RHBH16CB [22/104] Preparation
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Daikin RHBH16CB [22/104] Preparation

Daikin RHBX04CB [22/104] Preparation
6 Preparation
Installer reference guide
22
RRLQ011~016CA + RHBH/X11+16CB
ROTEX HPSU low temperature Bi‑bloc
4P384980-1C – 2017.04
6.2 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.
6.2.1 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.
▪ 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.
Do NOT install the unit in the following places:
▪ Sound sensitive areas (e.g. near a bedroom), so that the
operation noise will cause no trouble.
▪ 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:
▪ Where the voltage fluctuates a lot
▪ In vehicles or vessels
▪ Where acidic or alkaline vapour is present
Seaside installation. Make sure the outdoor unit is NOT directly
exposed to sea winds. This is to prevent corrosion caused by high
levels of salt in the air, which might shorten the life of the unit.
Install the outdoor unit away from direct sea winds.
Example: Behind the building.
b
c
a
If the outdoor unit is exposed to direct sea winds, install a
windbreaker.
▪ Height of windbreaker≥1.5×height of outdoor unit
▪ Mind the service space requirements when installing the
windbreaker.
a
b
c
d
c
d
a Sea wind
b Building
c Outdoor unit
d Windbreaker
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
The outdoor unit is designed for outdoor installation only, and for
ambient temperatures ranging 10~43°C in cooling mode and –
25~25°C in heating mode.
6.2.2 Additional installation site requirements
of the outdoor unit in cold climates
Protect the outdoor unit against direct snowfall and take care that the
outdoor unit is NEVER snowed up.

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