Daikin SV1A25AJV1B - 13 Unit Installation; Preparing the Installation Site; Installation Site Requirements of the Unit

13 Unit installation
Installation and operation manual
23
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P709466-1 – 2023.09
13 Unit installation
WARNING
The installation MUST comply with the requirements that
apply to this R32 equipment. For more information, see
"12Special requirements for R32 units"[413].
13.1 Preparing the installation site
Avoid installation in an environment with a lot of organic solvents
such as ink and siloxane.
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 an installation location with sufficient space to carry the unit
in and out of the site.
WARNING
The appliance shall be stored as follows:
▪ in such a way as to prevent mechanical damage.
▪ in a well-ventilated room without continuously operating
ignition sources (example: open flames, an operating
gas appliance or an operating electric heater).
▪ in a room with dimensions as specified in "12 Special
requirements for R32 units"[413].
13.1.1 Installation site requirements of the unit
CAUTION
Appliance NOT accessible to the general public. Install it in
a secured area, protected from easy access.
This unit is suitable for installation in a commercial,
industrial, household and residential environment.
INFORMATION
The sound pressure level is less than 70dBA.
INFORMATION
Also read the following requirements:
▪ Service space requirements. See below in this topic.
▪ Refrigerant piping requirements. See "14 Piping
installation"[430].
Safety measures differ depending on the total amount of refrigerant
in the system and on the floor area. See "12.3 To determine the
required safety measures"[414].
The SV unit is designed for indoor installation only. Always respect
the following conditions.
Ambient condition Value
Indoor temperature 5~32°CDB
Indoor humidity ≤80%
Do NOT install the unit in the following places:
▪ 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.
▪ Where acidic or alkaline vapour is present.
▪ In vehicles or vessels.
It is NOT recommended to install the unit in the following places
because it may shorten the life of the unit:
▪ In places where voltage fluctuates a lot.
▪ Water leakage. Take care that in the event of a water leak, water
CANNOT cause any damage to the installation space and its
surroundings.
▪ Noise. Choose a location where the operation noise of the unit
does not disturb the room occupants. To avoid that the refrigerant
noise disturbs the people in the room, keep at least 5m of piping
between the occupied room and the SV unit. If there is no false
ceiling in the room, it is advised to add sound insulation around
the piping between the SV unit and the indoor unit, or to keep
more length between the SV unit and the indoor unit.
>5 m
c
a
b
b
a
a SV unit
b Indoor unit
c Sound insulation (field supply)
▪ Drainage. Make sure condensation water can be evacuated
properly.
▪ Drain pipe length. Keep drain piping as short as possible.
▪ Drain pipe size. Keep the pipe size equal to or greater than that
of the connecting pipe (vinyl pipe of 20mm nominal diameter and
26mm outer diameter).
▪ Bad odours. To prevent bad odours and air going into the unit
through the drain piping, install a trap.
a
a Trap
▪ Ammonia. Do not connect the drain piping directly to sewage
pipes that smell of ammonia. The ammonia in the sewage pipe
might enter the unit through the drain piping and cause corrosion.
▪ Combining drain pipes. It is possible to combine drain pipes.
Use drain pipes and T-joints with the correct gauge for the
operating capacity of the units.
≥100
a a
a T-joint
▪ Spacing. Respect the following requirements: