Daikin EKHTS-AC - Инструкция по эксплуатации - Страница 5

EKHTS260AC6W1

Domestic hot water tank for air to water heat pump system

4PW73828-1 – 2012.05

Installation manual

3

Safety devices

■

Thermal protector — The heat pump unit is equipped with a
thermal protector. The thermal protector is activated when the
temperature becomes too high. When activated, the protector
has to be reset on the heat pump unit by pressing it (for access,
remove the decoration panels like indicated in the manual of the
heat pump unit). 

■

Thermal protector electric heater — The electric heater is
equipped with a thermal protector. The thermal protector is
activated when the temperature becomes too high. When
activated, the protector has to be reset on the electric heater by
pressing it (for access, remove the cover of the electric heater).

■

Pressure relief valve — A pressure relief valve (field supply) in
accordance with relevant local and national regulations, and with
an opening pressure of maximum 10 bar must be connected to
the pressure relief valve connection.

■

If a discharge pipe is connected to the pressure relief device it
must be installed in a continuously downward direction and in a
frost-free environment. It must be left open to the atmosphere.

Outlook diagram 

(See figure 2 and figure 3)

I

NSTALLATION

OF

THE

 EKHTS 

DOMESTIC

HOT

WATER

TANK

If required by relevant local and national regulations, connect a
recirculation pump in between the hot water end point and the cold
water connection of the domestic hot water tank.

Installation guidelines

Keep in mind the following guidelines when installing the domestic
hot water tank:

■

The installation location is frost-free.

■

Standard installation location of the domestic hot water tank is
on top of the indoor unit.

■

The domestic hot water tank can be floor mounted as well. In
that case, the dedicated EKFMAHTB connection kit for
installation of the domestic hot water tank next to the indoor unit
is required and to be ordered separately.

■

Locate the domestic hot water tank in a suitable position to
facilitate ease of maintenance. Refer to the grey-coloured zones
indicated in the outlook diagram figure and to the installation
manual of the indoor unit.

■

The domestic hot water tank relief valve connections
may not be used for other purpose.

■

This domestic hot water tank can only be used with an
EKHBRD* unit.

Switch off the power supply before opening the
decoration panels of the indoor unit.

Switch off the power supply before opening the cover
of the electric heater.

1

Hot water from the tank (G 3/4" Female)

2

Cold water to the tank (G 3/4" Female)

3

Hot water from the indoor unit to the tank coil (quick coupling 90°)

4

Return water from the tank coil to the indoor unit (quick coupling)

5

3-way valve

6

Knock-out holes for water piping

7

Levelling feet

A

Adviced service height above the tank to allow the replacement of 
the electric heater element without having to empty and turning 
the tank.

■

Installation shall be done by a licensed technician, the
choice of materials and installation shall comply with
local and national regulations.

■

The equipment is not intended for use in a potentially
explosive atmosphere.

■

Domestic hot water quality must be according to EU
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 any kind of
glycol to the water circuit.

■

To  avoid stagnation of water, it is important that the
storage capacity of the domestic hot water tank meets
the daily consumption of domestic hot water.

In cases where during longer periods of time there is
no consumption of hot water, the equipment must be
flushed with fresh water before usage.

The disinfection function provided on the equipment is
specified in the operation manual of the indoor unit.

■

It is advised to avoid long runs of piping between the
domestic hot water tank and the hot water end point
(shower, bath, ...) and to avoid dead ends.

■

The installation must be in compliance with local and
national regulations and may require additional
hygienic installation measures.

■

In accordance with local and national regulations it
may be necessary to install thermostatic mixing
valves.

■

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.

If available service space to left and/or right side is
limited, carefully consider all indoor module
installation steps first.

3

4

1

2

1

Cold water connection

2

Hot water connection

3

Shower

4

Recirculation pump

4PW73828-1.book  Page 3  Friday, May 25, 2012  2:27 PM