Daikin EHVH04S18CB, Installation Manual, Page: 4 / 28

3 Preparation
Installation manual
4
EHVH/X04~1 EHVH/X08~16S26CB
Daikin Altherma – Low temperature split
4P384971-1C – 2016.02
WARNING: Sharp edges
Take the front plate on the upper part instead of the lower
part. Watch your fingers, there are sharp edges on the
lower part of the front plate.
a~e+h
g
f
5
4
1
2
3
4
4×
2×
6 Remove the accessories.
1×
1× 1× 1× 1×
2× 1× 2×
a b c d
f g e h
a General safety precautions
b Addendum book for optional equipment
c Indoor unit installation manual
d Operation manual
e Sealing ring for shut-off valve
f Shut-off valve
g User interface cover
h 2 screws for fixing the user interface.
7 Reinstall the top panel and the front plate.
3 Preparation
3.1 Preparing installation site
3.1.1 Installation site requirements of the
indoor unit
▪ Mind the following spacing installation guidelines:
>500
>10 >10
(mm)
▪ The indoor unit is designed for indoor installation only and for
ambient temperatures ranging from 5~35°C.
3.2 Preparing water piping
3.2.1 To check the water volume and flow rate
Minimum water volume
Check that the total water volume in the installation is minimum
10 litre for EHVH/X04+08 and 20 litre for EHVH/X11+16, the internal
water volume of the indoor unit NOT included.
NOTICE
When circulation in each space heating loop is controlled
by remotely controlled valves, it is important that the
minimum water volume is guaranteed, even if all of the
valves are closed.
Minimum flow rate
Check that the minimum flow rate (required during defrost/backup
heater operation) in the installation is guaranteed in all conditions.
NOTICE
When circulation in each or certain space heating loops is
controlled by remotely controlled valves, it is important that
the minimum flow rate is guaranteed, even if all valves are
closed. In case the minimum flow rate cannot be reached,
a flow error 7H will be generated (no heating/operation).
See the installer reference guide for more information.
Minimum required flow rate during defrost/backup heater
operation
04+08 models 12 l/min
11+16 models 15 l/min
See the recommended procedure as described in "6.2 Checklist
during commissioning" on page 18 .
3.3 Preparing electrical wiring
3.3.1 Overview of electrical connections for
external and internal actuators
Item Description Wires Maximum
running
current
Outdoor unit and indoor unit power supply
1 Power supply for
outdoor unit 2+GND or
3+GND
(a)