Installing Optional Accessories; Installation Of Electric Backup Heater (Ekbuxx); Installation Of The External Heat Generator Connection Set (Ekbuhswb); Installation Of The Db Connection Kit - Daikin Altherma 3 R ECH2O EHSX04P30D2 Manuel D'installation Et De Fonctionnement

3 Set-up and installation
3.5

Installing optional accessories

3.5.1 Installation of electric backup heater
(EKBUxx)
INFORMATION
If the ceiling height is low, the storage tank must be tilted to
install the backup heater when empty. This must be done
before any further installation steps.
The indoor unit provides the option of installing an electrical auxiliary
heater (backup heater EKBUxx). For example, renewable energy
can be used as an additional heat source.
INFORMATION
A separate manual
installation and operation is included with this component.
3.5.2 Installation of the external heat generator
connection set (EKBUHSWB)
The connection set for external heat generators must be installed to
control an electrical backup heater or another external heat
generator.
1 Open the housing by removing the screw.
2 Remove additional components from the housing (strain relief
clip, cable tie, grommet).
3 Attach the connection set to the switch box of the indoor unit.
To do this, insert the hooks (item a) of the connection set into
the slots of the switch box (item b); then press the connection
set downwards.
3‒23 Fitting the connection set
a Hooks
b Slot
4 Attach the grommet (item a) to the bushing between the
connection set and the switch box.
5 Attach the fastening rivet (item b).
3‒24 Cable gland
a Grommet
b Fastening rivet
Installation and operating manual
18
containing instructions about
6 Guide the cable of the Ultra EHS PCB through the cable
grommet and connect it to the RoCon BM2C (see
Connection on the RTX-EHS
7 After the installation and the electrical connections (see
"3.6 Water connection"
[ 4 20]) have been completed, replace the cover
connection"
and close it with the screw.
3.5.3

Installation of the DB connection kit

The optional DB connection kit allows better access for connecting
the DrainBack pipe (solar feed).
3‒25 DB connection kit
a DB pipe connection (solar flow)
b FlowSensor (not part of the DB connection kit, but
included with EKSRPS4)
c Flow rate limiter (FlowGuard)
d
Solar flow connection
3.5.4

Installation of the P connection kit

The optional P connection kit for Biv device types allows better
access for connecting the flow and return flow lines of a pressurised
solar system or another external heat generator on the storage tank.
The kit contains two thermally insulated corrugated pipes that are
connected to the connections of the storage tank via a union nut. At
the other end of the corrugated pipes there is an adapter for different
connection sizes of the supply and return pipes.
3‒26 P connection kit for Biv device types
a Connection for flow (red)
b Connection for return flow (blue)
" 3‒38
PCB" [ 4 25]).
[ 4
19] or "3.7 Electrical
on the storage tank
Daikin Altherma EHS(X/H)(B)-D
Daikin Altherma 3 R ECH₂O
008.1451099_00 – 07/2020