Daikin EKHWS150BA3V3, EKHWS200BA3V3, EKHWS300BA3V3, EKHWS200BA3Z2, EKHWS300BA3Z2 Installation manuals
INSTALLATION MANUAL
Domestic hot water tank for air to
water heat pump system
EKHWS150BA3V3
EKHWS200BA3V3
EKHWS300BA3V3
EKHWS200BA3Z2
EKHWS300BA3Z2
1
2
EKHWS150BA3V3
EKHWS200BA3V3 EKHWS200BA3Z2
EKHWS300BA3V3 EKHWS300BA3Z2
C
ONTENTS
Domestic hot water tank
for air to water heat pump system
age
P
Introduction........................................................................................ 1
General information ................................................................................... 1
Scope of this manual ................................................................................. 1
Model identification ....................................................................................1
Accessories ....................................................................................... 1
Accessories supplied with the domestic hot water tank............................. 1
Installation of the EKHWS domestic hot water tank.......................................... 2
Main components....................................................................................... 2
Outlook diagram......................................................................................... 3
Installation guidelines................................................................................. 3
Installing the domestic hot water tank........................................................ 3
Connecting the water circuits..................................................................... 3
Field wiring................................................................................................. 5
Maintenance ...................................................................................... 6
Troubleshooting ................................................................................. 7
General guidelines ..................................................................................... 7
General symptoms..................................................................................... 7
Technical specifications ..................................................................... 7
Domestic hot water tank specifications...................................................... 7
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.
THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED
FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT
TEMPERATURES RANGING 0°C~35°C.
Installation manual
Scope of this manual
This installation manual describes the procedures for unpacking,
installing and connecting the EKHWS domestic hot water tanks.
Model identification
EK HWS 150 BA 3 V3
Booster heater voltage
V3 = 1P, 230 V
Z2 = 2P, 400 V (only for
200 l and 300 l models)
Capacity booster heater: 3 kW
Series
Indication of storage capacity in litres
Hot Water tank Stainless steel
European Kit
CCESSORIES
A
Accessories supplied with the domestic hot water tank
See figure 1
1
Thermistor + connection wire (12 m)
2
Contactor - fuse assembly
3
Contactor fixing screw
4
Tapping screw
5
Installation manual
6
3-way valve + motor
NOTE
For accessories supplied with the EKHWSU domestic
hot water tank, refer to the manual supplied with the
tank.
I
NTRODUCTION
General information
Thank you for purchasing this domestic hot water tank.
The EKHWS domestic hot water tank with integrated 3 kW electrical
booster heater can be connected to the indoor unit. The domestic hot
water tank is available in three sizes: 150, 200 and 300 litre. All
models are floor mounted. The 200 and 300 litre models are also
available as 400 V versions.
NOTE
EKHWS150~300BA3V3 + EKHWS200+300BA3Z2
Domestic hot water tank for air to water heat pump system
4P610547-1 – 2020.01
Especially for the United Kingdom
For installation of an EKHWSU domestic hot water
tank, refer to the installation manual supplied with the
tank.
Installation manual
1
I
NSTALLATION OF THE
WATER TANK
EKHWS
DOMESTIC HOT
Following descriptions are only for EKHWS*V3 and EKHWS*Z2 models, not for EKHWSU*V3 models
■
The total
system (indoor unit
and outdoor unit) is designed for combination with an
domestic hot water tank. In case
another tank is being used in combination with the
indoor unit, Daikin cannot
guarantee neither good operation nor reliability of the
system. For those reasons Daikin cannot give
warranty of the system in such case.
■
The equipment is not intended for use in a potentially
explosive atmosphere.
■
Domestic hot water quality must be according to EN
directive 98/83 EC.
■
A drain device should be installed on the cold water
connection on the domestic hot water tank.
■
For safety reasons, it is not allowed to add ethylene
glycol to the water circuit. Adding ethylene glycol
might lead to contamination of the domestic water if a
leakage would occur in the heat exchanger coil.
■
It is important that the storage capacity of the
domestic hot water tank meets normal daily
fluctuations in consumption of domestic hot water
without any fall of the water outlet temperature during
use.
■
Immediately after installation, the domestic hot water
tank must be flushed with fresh water. This procedure
must be repeated at least once a day the first
5 consecutive days after installation.
Main components
In case of limited consumption of domestic hot water, e.g. at holiday
residences or at houses that are occasionally not occupied, the
domestic hot water tank installation must be fitted with a shunt pump.
■
The shunt pump can be time-controlled,
■
the shunt pump must operate to circulate the complete volume
of the domestic hot water tank 1.5 times per hour,
■
and the shunt pump must operate, or be programmed for
operation, during 2 uninterrupted hours per day at least.
2
3
1
4
1 Cold water connection
2 Hot water connection
3 Shunt pump
(field supply)
4 Non-return valve
(field supply)
In case of very long field water piping between the domestic hot
water tank and the hot water end point (shower, bath, etc.) it can take
more time before the hot water from the domestic hot water tank
reaches the hot water end point.
1 Shower
1
2
2 Recirculation pump
1
Field supply
2
Hot water connection
3
Pressure relief valve connection
4
Pressure relief valve (field supply)
5
Electrical box
6
Electrical box lid
7
Recirculation hole
8
Thermistor socket
9
Flow inlet connection
10
Heat exchanger coil
11
Return outlet connection
12
Cold water connection
13
Threaded thermistor hole
If required connect a recirculation pump in between the hot water end
point and the recirculation hole in the domestic hot water tank.
Installation manual
2
Domestic hot water tank for air to water heat pump system
EKHWS150~300BA3V3 + EKHWS200+300BA3Z2
4P610547-1 – 2020.01
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