Filling And Topping Up The Heating System - Daikin Altherma EHS Serie Manual De Instrucciones E Instalación

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Without installed solar system
Connect the filling hose with backflush prevention (1/2") to
the connection "DrainBack Solar - feed" (see fig. 7-1,
item 1).
Fill the storage tank on the Daikin Altherma EHS(X/H) until
water comes out of the connection (fig. 7-1, item 23), that
has been connected as the safety overflow.
Disconnect the filling hose with backflush prevention (1/2")
again.
With KFE filling connection or with installed
system (see also chapter 6.1)
Without solar system: KFE filling connection (accessory
KFE BA) at the filling and draining connection of the Daikin
Altherma EHS(X/H) (fig. 3-2 to fig. 3-5, item 10)
or
with solar system: Mount the KFE filling connection
(accessory KFE BA)at the connection elbow of the
control and pump unit (EKSRPS4A).
Connect the filling hose with backflush prevention (1/2") to
the previously installed KFE cock.
Fill the storage tank on the Daikin Altherma EHS(X/H) until
water comes out of the connection (fig. 7-1, item 23), that
has been connected as the safety overflow.
Disconnect the filling hose with backflush prevention (1/2")
again.
Fig. 7-1
Buffer storage filling - without solar system
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN
7
x

7.4 Filling and topping up the heating system

DANGER!
During the filling procedure, water can
leak from potential leaking sites, which,
in the event of contact with live parts, can
result in an electric shock.
solar
Disconnect the Daikin Altherma
EHS(X/H) before filling.
After the initial filling, prior to switching
on the power supply to the Daikin
Altherma EHS(X/H), check whether
all electronic parts and connection
points are dry.
WARNING!
Polluted domestic water is hazardous to
health.
When filling the heating system
prevent any back-flow of heating
water into the drinking water piping.
Observe the information on the water connection and
water quality in accordance with chap. 2.4 and 4.4.
1. Connect the filling hose (fig. 7-2, item 1) with back flush
prevention (1/2") and an external pressure gauge (on-site) to
the KFE cock (fig. 7-2, item 2) and secure from slipping using
a hose clamp.
2. Connect the drain hose to the venting valve and direct away
from the unit. Open the venting valve with connected hose
and check that the other venting valve is closed.
3. Open the water cock (fig. 7-2, item 4) in the supply line.
4. Open KFE cock (fig. 7-2, item 2) and watch the pressure
gauge.
5. Fill the system with water until the system target pressure is
reached on the pressure gauge (System height +2 m,
whereby 1 m water column = 0.1 bar).
The overpressure valve must not be triggered!
6. Close manual venting valve as soon as bubble-free water
comes out.
7. Close water stopcock (fig. 7-2, item 4). KFE valve must
remain open so that the water pressure can be read off on the
external pressure gauge.
8. Switch on the power supply of the Daikin Altherma EHS(X/H).
9. Set rotary switch to position operating mode and select
"Heating".
Daikin Altherma EHS(X/H) runs in the hot water heating
mode after the start phase.
10. During hot water heating mode, continuously check the water
pressure on the external pressure gauge and if necessary,
top up the water via the KFE valve (fig. 7-2, item 2).
Service and maintenance
Installation and operating instructions
53

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