Optional: External Heat Generator Installation; Laying Coolant Lines - Daikin EKHHP300A2V3 Manuel D'installation Et D'utilisation

2 x Set-up and installation
● Connect the drain hose to the connection piece for the safety
overflow (see fig. 2-6 and overview image on page 2,
item 23).
– Use transparent drain hose (draining water must be visi-
ble).
– Connect the drain hose to an adequately dimensioned
waste water installation.
– Drain should not be lockable.
Fig. 2-6 Installation of drain hose at safety overflow

2.4.1 Optional: External heat generator installation

WARNING!
If you operate the DAIKIN EKHHP when the storage
tank is not completely full, damage to the equipment
may occur.
● Fill the DAIKIN EKHHP only after all the installation
work has been completed.
● Observe the sequence during the filling process.
● Commissioning only after all the installation work
has been completed and only after filling the
storage tank completely.
For support or as an alternative for heating by the heat pump you
can connect external heat generators (e.g. Solar, gas or oil boiler)
to the DAIKIN EKHHP.
The heat supplied by the external heat generator must be added
to the unpressurised storage tank water in the DAIKIN EKHHP
hot water storage tank.
● Carry out hydraulic connection in accordance with one of the
two following possibilities:
a) EKHHP(3/5)00AA2V3:
connections (solar infeed and solar return) of the hot
water tank
or
b) Only EKHHP500AA2V3:
pressurised solar heat exchanger.
– Take the position and dimensions of the connections from
the overview image on page 2 and tab. 0-1 on page 3.
– Carry out hydraulic system incorporation in accordance
with fig. 2-5.
– Pay attention to the stipulated tightening torque
(see section 2.1).
– Design the lines as such that the sound attenuation cowl
can be applied without any problem following assembly.
Installation and maintenance manual
12
unpressurised via
via the integrated

2.5 Laying coolant lines

● Check whether oil trap arc necessary.
– Required if DAIKIN EKHHP is not installed at ground level
with the heat pump exterior unit (fig. 2-7, H
– At least one oil trap arc must be installed every 10 m dif-
ference in height (fig. 2-7, H = clearance from oil trap arc
to oil trap arc).
– Oil trap arc only required in gas line.
● Install lines with bending unit and an adequate clearance to
electrical lines.
● Only solder with light nitrogen flow (hard soldering only).
● Do not apply heat insulation to joins until after start-up (for
purposes of leakage search).
● Establish crimped connections and connect to the units (
pay attention to the tightening torque, see section 2.1).
E
A
A DAIKIN ERWQ
B DAIKIN EKHHP
C Gas line
D Liquid line
E Oil trap arc
H Height to 1st oil trap (max. 10 m)
H Height difference between heat pump exterior unit and heat pump
O
interior unit.
Fig. 2-7 Oil trap arc coolant line
≥ 10 m).
O
B
C
D
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_02 – 09/2015