Precautions When Mounting The Indoor Unit; To Provide The Installation Structure; Connecting The Refrigerant Piping; Precautions When Connecting The Refrigerant Piping - Daikin SERHQ020BAW1 Installer And User Reference Manual

6.4.2 Precautions when mounting the indoor
unit
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
6.4.3

To provide the installation structure

Make sure the unit is installed level on a sufficiently strong base to
prevent vibration and noise.
NOTICE
▪ When the installation height of the unit needs to be
increased, do NOT use stands to only support the
corners.
▪ Stands under the unit must be at least 100 mm wide.
▪ The unit must be mounted against the wall.
▪ The unit must be fixed to prevent it from tilting.
▪ The preferred installation is on a solid longitudinal foundation
(steel beam frame or concrete).
▪ Observe the minimum installation space requirements.
200 766.5
▪ Fasten the unit in place using four foundation bolts M12. It is best
to screw in the foundation bolts until their length remains 20 mm
above the foundation surface.
▪ Fasten the unit to the floor using the holes in the bottom beams.
▪ Fasten the unit to the wall using the 2 accessory L-shaped
supports to prevent it from falling over. The supports can be fixed
to the top panel of the indoor unit (2× M5 screws on either side,
but one screw is already mounted on the right side of the top
plate).
SERHQ020~032BAW1 + SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508020-1B – 2018.04
6.5
6.5.1
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
DANGER: RISK OF BURNING
NOTICE
Take the following precautions on refrigerant piping into
account:
▪ Avoid anything but the designated refrigerant to get
▪ Only use R410A when adding refrigerant.
▪ Only use installation tools (e.g. manifold gauge set) that
500
(mm)
▪ Protect the piping as described in the following table to
▪ Use caution when passing copper tubes through walls.
Unit
Outdoor unit
Indoor unit
WARNING
Connect the refrigerant piping securely before running the
compressor. If the refrigerant piping is NOT connected and
the stop valve is open when the compressor is run, air will
be sucked in. This will cause abnormal pressure in the
refrigeration cycle, which may result in equipment damage
and even injury.
a
a Attach one L-shaped support to the left side of the top plate
using 2 screws from the accessory bag
b Attach the other L-shaped support to the right side of the
top plate using 1 screw from the accessory bag and
1 screw that is already attached to the unit

Connecting the refrigerant piping

Precautions when connecting the
refrigerant piping
mixed into the refrigerant cycle (e.g. air).
are exclusively used for R410A installations to
withstand the pressure and to prevent foreign materials
(e.g. mineral oils and moisture) from mixing into the
system.
prevent dirt, liquid or dust from entering the piping.
Installation period
>1 month
<1 month
Regardless of the
period
Installer and user reference guide
6 Installation
b
Protection method
Pinch the pipe
Pinch or tape the pipe
19