REMKO BG 500 User manual

REMKO
FRESH WATER STATION
BG 500, BG 800, BG 1000
Installation and operating manual
Edition GB - C06

3
Contents
Read this installation manual carefully before
commissioning / using these units!
These instructions are an integral part of the unit and must
always be kept in the vicinity of the installation location or
on the unit itself.
This operating manual is a translation of the German original.
Subject to modifications; no liability accepted for errors or
misprints!
Safety instructions 4
Environmental protection and recycling 5
Warranty 5
Intended use 5
Description 5-6
Construction 6
Installation 7-8
Installation orientation of the flow switch 8
Electrical connection 9
Performance diagram 10
On-site drinking water circulation system 11
Service notes 12
Exploded view and spare parts list 13
Technical data 14
Made by REMKO

4
REMKO FRESH WATER STATION
Carefully read the operating manual be-
fore placing the unit in service for the first
time. It contains useful tips and notes
such as hazard warnings to prevent
injury and material damage. Failure to
follow the directions in this manual can
result in endangerment to persons, the
environment and the equipment itself
and will void any claims for liability.
■ Keep this manual in the vicinity of the
units.
■ The units and components should be
set up and installed only by qualified
personnel.
■ The set-up, connection, and opera-
tion of the units and their compo-
nents must be in accordance with the
operating conditions stipulated in this
manual and comply with all applicable
local regulations.
■ Modification of units and components
supplied by REMKO is not permitted
and can cause malfunctions.
■ Units and components may not be
operated in areas where there is an
increased risk of damage. Observe
the minimum clearances.
Safety instructions
■ The electrical supply is to be adapted
to the requirements of the units.
■ The operational safety of units and
components is only assured if they are
fully assembled and used as intended.
Safety devices may not be modified
or bypassed.
■ Do not operate units or components
with obvious defects or signs of dam-
age.
■ The units and components must be
kept at a safe distance from inflam-
mable, explosive, combustible,
aggressive and dirty areas or atmos-
pheres.
■ Installation, repair and maintenance
work may be carried out only by au-
thorised specialists. Visual inspections
and cleaning can be performed by the
operator as long as power is discon-
nected from the equipment.
■ To preclude any danger from the unit,
take appropriate hazard-prevention
measures when performing installa-
tion, repair or maintenance work or
cleaning the units.

5
Description
Warranty
The warranty conditions are listed in the
"General terms and conditions".
Please contact your contractual partner
in the first instance.
Environmental pro-
tection and recycling
Disposing of packaging
All products are packed for transport
in environmentally friendly materials.
You can make a valuable contribution
to reducing waste and sustaining raw
materials by only disposing of packaging
at approved collection points.
Disposal of
components
The manufacturing process for the
units is subject to continuous qual-
ity control. Only high-grade materials are
processed, the majority of which
are recyclable. You can also
contribute to environmental protec-
tion by only disposing of components
in accordance with local regulations and
in an environmentally safe manner, e.g.
through authorised disposal and recycling
specialists or at collection
points.
The fresh water station was developed
for use by regenerative heating appli-
ances, particularly for heat pumps. It can
supply one to two residential units with
fresh domestic hot water.
The domestic hot water is only heated
when there is demand, via a stainless
steel plate heat exchanger, in a hygienic
flow process.
The energy supply required for this is
provided as needed by a heating water
storage tank.
When the hot tap is opened, the in-
tegrated circulation pump is switched
on by a flow switch and heating water
is conveyed from the heating water
storage tank to the primary side of the
stainless steel plate heat exchanger,
causing the cold drinking water flowing
Intended use
The fresh water station was developed
for use by regenerative heating appli-
ances, particularly for heat pumps.
The domestic hot water is only heated
when there is demand, via a stainless
steel plate heat exchanger, in a hygienic
flow process.
The energy supply required for this is
provided as needed by a heating water
storage tank.SFlb Any alternative or ad-
ditional use is classed as non-intended
use. The manufacturer/supplier assumes
no liability for damages arising from such
use. The user bears the sole risk in such
cases.
Intended use also includes working in ac-
cordance with the operating manual and
installation instructions and complying
with the maintenance requirements.

6
REMKO FRESH WATER STATION
Construction
Mixing valve for
limiting the
temperature
at the tap
Hot water
connection, 3/4"
internal thread
Plate heat
exchanger
Circulation pump
Gravity brake
(close after filling!)
Flow switch
through the secondary side to be heated
to domestic hot water temperature.
A mixing valve allows the temperature
of the domestic hot water to be limited
(to prevent scalding).
Due to heating water only being sup-
plied to the plate heat exchanger when
it is needed, the fresh water station is
not susceptible to the formation of scale
- even in very hard water areas.
A customer-supplied circulation pump
can be connected. This should not be
operated on a permanent basis, but
ideally after a time delay and using the
integrated tap recognition function.
Chilled water
connection, 3/4"
internal thread
Circulation pipe
Connection 1/2”
Circulation pipe
Connection 1/2”

7
Installation
To perform the installation, proceed as
follows:
1. Select the most suitable place to
install the fresh water station. Please
ensure that the area is appropriately
accessible for installtion and possible
servicing work (clearance of approx.
50 cm to the front and sides).
2. Seal the two supplied reducing
double nipples 6/4" x 5/4" and
screw into one of the top and
bottom connections.
3. Seal the two supplied plugs 5/4“
and screw into the two
corresponding connections in the
middle.
4. Move the preassembled fresh water
station into position, attach to the
two flat-sealing connections
(union nuts) on the top and bottom
reducing double nipples, then screw
tight.
5. Fill, bleed and flush the storage
tank and the fresh water station
and check all threaded connections,
for leak tightness, including those
inside the fresh water station.
Retighten them as needed!

8
REMKO FRESH WATER STATION
6. Put on the cover and screw
into place. Plug the mains plug
into a suitable Schuko socket.
Installation orientation of the flow switch
Orientation for installation:
When fitting the flow switch, ensure
that the hex nut is pointing upwards,
like in the diagram.
Water must flow through the sensor
from the bottom to the top, in the direc-
tion of the arrow.
The detector (black plastic part) can be
fitted to the brass part in any direction.
Note the orientation when install-
ing the flow switch
(cold water connection only from
underneath!)
NOTE
G 3/4” oder 1”
G 3/4” oder 1”
G 3/4“ or 1“
G 3/4“ or 1“
Nut

9
Electrical connection
The fresh water station is fully wired in
the factory and is supplied ready to plug
in. All you need is a 230 V/50 Hz socket
with a 10 A or 16 A fuse.
Circuit diagram
In order to avoid the circulation
pump from running dry, the fresh
water station may only be plugged
in once it has been filled with heat-
ing water, flushed and bled.
NOTE
Before use, the fresh water station must
be filled and thoroughly and carefully
flushed.
All connections, particularly flat-sealing
connections, must be tested for leak
tightness and if necessary retightened.
When bleeding the system, note the
minimum system operating pressure, and
if necessary top up.
M
~
l/h
L
N
M
~
t
T
Flow switch
Circulation pump
Fresh water station
Circulation pump
(customer-provided)
thermostatically
and/or
time-controlled

10
REMKO FRESH WATER STATION
Schüttleistung Frischwasserstation
0
50
100 150 200 250 300 350 400 450 500
45 50 55 60 65 70
Temperatur Pufferspeicher bei Zapfbeginn [°C]
Schüttleistung [Liter]
HPS 500 MPS 1000 MPS 800
Bedingungen: Temperatur Kaltwasserzulauf: 10 °C Zapftemperatur am Ausgang der Frischwasserstation: 45 °C Zapfleistung: 10 l/min
Performance diagram
Pour power fresh water station
Pour power [Liter]
Temperature of storage tank by beginning of tap [°C]
Conditions: Temperature cool water intake: 10 °C Temperature of tap on the outlet of the fresh water station: 45 °C Tap power: 10 l/min

11
Zirkulationspumpe
(bauseits)
Verteilerdose
(bauseits)
Steckerschaltuhr
(bauseits)
Supplemental note with regard to the on-site
drinking water circulation system
Circulation pump
Fresh water station
M
~
l/h
L
N
M
~
t
T
Flow switch
Circulation pump (on site)
thermostatically
and / or timed
In rare cases, it can happen that the pressure loss in the circulation line is relatively
large and that, as a consequence, the circulation pump's output will not be adequate
to overcome the fresh water station flow monitor's activation threshold of 1.5 l/min.
As soon as a timer is connected on-site to the circulation pump and is in operation,
the following switching will also activate the fresh water station's circulation pump.
The necessary materials are to be provided by the customer (see illustration).
Junction box
(on site)
Connected timer
(on site)
Make sure phases are synchronised! (the same mains circuit for the fresh water
station mains socket and the connected timer!)
! CAUTION
Circulation
pump
(on site)
Note that the
control can be
thermostatic or
timed (T or t)

12
REMKO FRESH WATER STATION
Service notes
If the circulating pump is replaced or the plate heat exchanger must be removed for
cleaning purposes, it is possible to do so without first emptying the buffer tank if you
proceed as follows:
1. Check whether the gravity brake (1) is
set to AUTO (see figure below)
2. Close the upper ball valve (2).
3. Set the mixing valve (3) to 20 °C.
4. If necessary, cool the sensors of the
mixing valve (4) to temperatures < 20
°C (e.g. in the water glass).
5. The circulating pump and/or plate
heat exchanger can be removed.
Water losses will only take place in
the components and in the piping.
3
2
4
1

13
Spare parts list
No. Description BG 500 BG 800/1000
from serial number 1178B5000 1179B5000
1 Mixing valve, upper section 1120100 1120100
2 Mixing valve, lower section 1120101 1120101
3 Ball valve, 1" with coupler 1120102 1120102
4 Ball valve, hot water 1120103 1120103
5 Plate heat exchanger 1120058 1120058
6 Flow switch 1120104 1120104
7 Circulation pump UPS 25/60 1120142 1120142
8 Ball valve, cold water 1120105 1120105
9 Supply with fused plug 1120106 1120106
10 Drain valve 1120107 1120107
Spare parts not illustrated
Cover 1120108 1120108
Exploded view
When ordering spare parts, please always state the EDP no., unit no. and unit type
(see identification plate)!
1
2
3
4
5
67
10
8
9

14
REMKO FRESH WATER STATION
Technical data
We reserve the right to modify the dimensions and constructional design as part of the ongoing
technical development process.
Series BG 500 BG 800/1000
Cold water connection Inches
(mm) 3/4 (19.05) internal thread 3/4 (19.05) internal thread
Drinking water connection Inches
(mm) 3/4 (19.05) internal thread 3/4 (19.05) internal thread
Max. operating pressure, heating water bar 3 3
Max. operating pressure, drinking
water bar 10 10
Nominal flow volume, heating water l/h 2600 2600
Max. tap quantity l/min 25 25
Switch-on threshold Flow switch l/min 1,5 1,5
Weight kg 34,5 36,0
Supply temperature limit °C 40 - 70 40 - 70
Protection class IP 44 44
Rated voltage V/Hz 230 V/50 Hz AC 230 V/50 Hz AC
Dimensions (HxWxD) mm 1553x300x310 1553x300x310
EDP no.: 260151 260152

REMKO INTERNATIONAL
...and right in your own location too!
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REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
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e-mail [email protected]
Website www.remko.de