Installation Site Requirements Of The Backup Heater; Preparing Water Piping; Water Circuit Requirements - Daikin EWAQ006BAVP Installer's Reference Manual

▪ In places with high humidity (max. RH=85%), for example a
bathroom.
▪ In places where frost is possible.
6.2.5 Installation site requirements of the
backup heater
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
▪ Mind the measurement guidelines:
Maximum distance between the backup heater and
the outdoor unit
▪ Mind the following spacing installation guidelines:
>50 >50
INFORMATION
If the backup heater is installed in a reversible system
(heating+cooling) and valve kit EKMBHBP1 is part of the
system, it may be required to provide more space under
the backup heater than indicated above. For more
information, refer to
page 33.
▪ The backup heater is designed to be wall-mounted in indoor
locations only. Make sure the installation surface is a flat and
vertical non-combustible wall.
▪ The backup heater is designed to operate in ambient
temperatures ranging from 5~30°C.
Do NOT install the backup heater in the following places:
▪ Sound sensitive areas (e.g. near a bedroom), so that the
operation noise will cause no trouble.
▪ In places with high humidity (max. RH=85%), for example a
bathroom.
▪ In places where frost is possible.
6.3

Preparing water piping

6.3.1

Water circuit requirements

INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
NOTICE
In case of plastic pipes, make sure they are fully oxygen
diffusion tight according to DIN 4726. The diffusion of
oxygen into the piping can lead to excessive corrosion.
EWAQ+EWYQ006+008BAVP + EK(2)CB07CAV3 +
EKMBUHCA3V3+9W1
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492901-1 – 2017.06
10 m
>500
"7.7.5 About the valve kit" on
▪ Connecting piping – Legislation. Make all piping connections in
accordance with the applicable legislation and the instructions in
the "Installation" chapter, respecting the water inlet and outlet.
▪ Connecting piping – Force. Do NOT use excessive force when
connecting the piping. Deformation of the piping can cause
malfunctioning of the unit.
▪ Connecting piping – Tools. Only use appropriate tooling to
handle brass, which is a soft material. If NOT, pipes will get
damaged.
▪ Connecting piping – Air, moisture, dust. If air, moisture or dust
gets into the circuit, problems may occur. To prevent this:
▪ Only use clean pipes
▪ Hold the pipe end downwards when removing burrs.
▪ Cover the pipe end when inserting it through a wall, to prevent
dust and/or particles entering the pipe.
▪ Use a decent thread sealant to seal connections.
NOTICE
If glycol is present in the system, make sure the thread
sealant used is resistant to glycol.
▪ Closed circuit. Use the outdoor unit ONLY in a closed water
system. Using the system in an open water system will lead to
excessive corrosion.
▪ Piping diameter. Select the water piping diameter in relation to
the required water flow and the available external static pressure
of the pump. See "14 Technical data" on page 76
static pressure curves of the outdoor unit.
▪ Water flow. It is required to guarantee a minimum flow of 20 l/min.
When the flow is lower, the system will stop operation and display
error 7H.
Minimum required flow rate
006+008 models
▪ Field supply components – Freeze protection. If negative
ambient temperatures are expected, make sure the outdoor field
piping is sufficiently protected against freezing. Depending on the
outdoor unit model, add glycol to the water circuit, or add sufficient
insulation and/or heater tape to the outdoor field piping. For
details, see "7.7.6 To protect the water circuit against freezing" on
page 34.
▪ Field supply components – Water and glycol. Only use
materials that are compatible with the water (and, if applicable,
glycol) used in the system, and with the materials used in the
outdoor unit.
▪ Field supply components – Water pressure and temperature.
Check that all components in the field piping can withstand the
water pressure and water temperature.
▪ Water pressure. The maximum water pressure is 3 bar. Provide
adequate safeguards in the water circuit to ensure that the
maximum pressure is NOT exceeded.
▪ Water temperature. All installed piping and piping accessories
(valve, connections,...) MUST
temperatures:
INFORMATION
The following illustration is an example and might NOT
match your system layout.
6 Preparation
for the external
20 l/min
withstand the following
Installer reference guide
23