Resol FlowSol B HE WMZ User manual

*11205076* 11205076
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Please read this manual carefully to get the best performance from this unit.
Please keep this manual carefully. www.resol.com
Manual
en
Installation
Operation
Commissioning
Manual for the
specialised craftsman
FlowSol®B HE WMZ

2
Subject to technical change. Errors excepted.
© 20191029_11205076_FlowSol_B_HE_WMZ.monen.indd
Safety advice
Please pay attention to the following safety advice
in order to avoid danger and damage to people and
property.
Instructions
Attention must be paid to the valid local standards,
regulations and directives!
Information about the product
Proper usage
The pump station may only be used in the solar cir-
cuit of solar thermal systems in compliance with the
technical data specified in these instructions. Due to
its design the station must be mounted and operated
as described in these instructions!
CE-Declaration of conformity
The product complies with the relevant di-
rectives and is therefore labelled with the
CE mark. The Declaration of Conformity
is available upon request, please contact
RESOL.
Target group
These instructions are exclusively addressed to au-
thorised skilled personnel.
Only qualified electricians should carry out electrical
works.
Initial installation must be effected by qualified per-
sonnel named by the manufacturer.
Contents
1 Overview .................................................... 3
2 Mounting the station................................. 4
3 Flushing and filling the solar system........ 4
4 Ball valve positions .................................... 5
5 Draining the system.................................. 5
6 Non-return valves...................................... 5
7 Flow rate measurement ........................... 6
8 Air separator ............................................. 6
9 Maintenance............................................... 6
10 Safety devices............................................. 6
11 Accessories ................................................ 7
12 Information about the pump ................... 7
13 Lists of spare parts ................................... 7
Description of symbols
WARNING! Warnings are indicated with a warn-
ing triangle!
ÎThey contain information
on how to avoid the danger
described.
Signal words describe the danger that may occur,
when it is not avoided.
• WARNING means that injury, possibly life-threat-
ening injury, can occur.
• ATTENTION means that damage to the appli-
ance can occur.
Note
Notes are indicated with an information
symbol.
ÎArrows indicate instruction steps that should be
carried out.
Disposal
• Dispose of the packaging in an environmentally
sound manner.
• At the end of its working life, the product must not
be disposed of as urban waste. Old appliances must
be disposed of by an authorised body in an envi-
ronmentally sound manner. Upon request we will
take back your old appliances bought from us and
guarantee an environmentally sound disposal of the
devices.

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FlowSol®B HE WMZ
1 Overview
• With integrated heat quantity measure-
ment via VFS Grundfos Direct SensorTM
• Pre-assembled twin-line pump station
• Integrated DeltaSol®BX W controller
• Design insulation casing
• Innovative hinged controller panel for quick
and easy access to the hydraulic components
• Safety assembly with connection for the
diaphragm-type expansion vessel, safety valve
and pressure gauge
• Fill and drain valves
• Wall mounting bracket with mounting material
• Air separator with manual air vent for the
solar thermal system
Technical data
Circulating pump:Wilo PARA ST15-130/7-50/ iPWM2-12
(power consumption of the pump:25W)
Safety valve: 6 bar
Pressure gauge: 0 ... 10 bar
Grundfos Direct Sensor™: VFS 1-12 / VFS 2-40
Non-return valves:
Opening pressure 20 mbar, openable
Connection to diaphragm-type expansion vessel:
¾'' ET, flat sealing
Outlet safety valve: ¾'' IT
Connections to the solar pipes:
¾" IT, at VFS: ¾" ET
Maximum temperature flow /return: 120°C/95 °C
Maximum pressure: 6 bar
Medium: Water with max. 50 % glycol
Dimensions:
Approx. 481 × 320 × 190 mm (with insulation)
Distance centres: 100 mm
Distance centre / wall: 67 mm
Material: Fittings: brass
Seals: AFM 34
Insulation: EPP foam
Note:
This pump station can be used with the heat
transfer fluids Tyfocor L, L eco and LS.
Pump characteristic / pressure loss characteristic
99
Wilo PARA ST15-130/7-50/ iPWM2-12
max.
Delivery height (m)
Flow rate (l/min)
Pressure loss (bar)

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2 Mounting the station
10
11
12
13
10 Wall mounting bracket
11 Back half of the insulation
12 Front half of the insulation
13 Hinged controller panel
ÎDetermine the mounting site of the station.
ÎMark the drill holes by means of the template en-
closed, then drill and insert wall plugs (see figure
to the right).
ÎTake the station out of the packaging.
ÎRemove the front half of the insulation. Leave the
pump station attached to the back half of the in-
sulation!
ÎFasten the pump station to the wall with the en-
closed screws. For this purpose, use a crosshead
screw driver.
ÎFold the hinged controller panel to the left.
ÎConnect the pipework between pump station
and store and collector respectively.
Note
All connections are already tightened such
that they usually do not have to be tightened
again. However, during commissioning of the
system all connections have to be checked
for leaks (pressure test).
3 Flushing and filling the solar
system
WARNING! Scald danger!
Pressure surge damage!
If the medium enters strongly heat-
ed, empty collectors, pressure surg-
es caused by evaporation can occur.
ÎIn order to prevent the solar
fluid from vaporising inside
the collectors, do not fill
or flush the system during
times of strong irradiation!
1 Safety valve
2 Pressure gauge
3 Drain valve
4 Ball valve (return) with thermometer and
integrated non-return valve
5 Fill valve
6 Pump
7 Grundfos Direct SensorTM
8 Ball valve (flow) with thermometer and
integrated non-return valve
9 Air separator
5
4
3
1
2
6
7
9
8

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Before flushing the system
ÎDisconnect the expansion vessel from the solar
thermal system.
2.
ÎConnect the pressure hose of the filling and flush-
ing station to the fill valve (5) of the pump station.
ÎConnect the flushing hose of the filling and flush-
ing station to the drain valve (3) of the pump sta-
tion.
ÎClose the ball valve of the pump station (4).
ÎOpen the fill valve (5) and the drain valve (3).
ÎSwitch on the filling pump of the filling and flush-
ing station.
ÎFlush the solar thermal system for at least 15
minutes by means of the filling and flushing sta-
tion until the discharged solar fluid is free of gas
bubbles and dirt particles.
ÎDuring flushing, bleed the solar thermal system
several times until the discharged solar fluid (e. g.
Tyfocor®, see chap. 11) is free of air bubbles.
ÎOpen the ball valve of the pump station (4).
After flushing the system
ÎConnect the expansion vessel to the solar ther-
mal system.
ÎClose the drain valve (3) of the pump station
while the filling pump is running.
BAR
ÎIncrease system pressure (approx. 3.5 - 4 bar).The
system pressure can be read from the pressure
gauge.
ÎClose the fill valve (5).
ÎSwitch off the filling pump.
ÎCheck the pressure gauge to see whether the
system pressure reduces and eliminate leaks
where necessary.
ÎSlowly discharge the heat transfer fluid by means
of the drain valve (3) until the operating pressure
is set.
ÎRemove the hoses of the filling and flushing sta-
tion and screw the caps onto the fill and drain
valves. Manually start the solar thermal pump at
maximum speed (see controller manual) and let
the fluid circulate for at least 15 minutes.
ÎBleed the solar thermal system several times.
ÎCheck the system pressure at the pressure gauge.
11.
%
ÎCheck the antifreeze ratio (not required if a
ready-mix is used).
4 Ball valve positions
WARNING! Scald danger! Damage by
overpressure!
When the ball valve is closed, too
high pressure may occur in the
blocked-off line if it is heated.
ÎIn order to prevent scald
danger and damage by
overpressure, make sure
the blocked-off line is not
heated.
Non-return valve in operating
position, fluid flow in flow direc-
tion only.
Ball valve open, fluid flow in both
directions possible.
Ball valve closed, no fluid flow.
5 Draining the system
ÎOpen the ball valve (4).
ÎOpen the air vent at the highest point of the sys-
tem (above the collectors).
ÎOpen the drain valve.
6 Non-return valves
The non-return valves of the pump station are inte-
grated into the ball valves in flow and return and have
an opening pressure of 20 mbar.
In order to completely drain the system, the non-
return valves have to be opened.
ÎFor this purpose, turn the handles of the ball
valves by 45°.
ÎFor normal system operation,open the ball valves
completely.

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7 Flow rate measurement
The VFS Grundfos Direct SensorTM is used for meas-
uring the flow rate and the temperature. In order to
ensure faultless operation of the sensor, the system
has to be flushed and must be free of dirt particles.
orifice in the measurement
head
8 Air separator
WARNING! Scald danger!
During venting,the air discharged can
reach temperatures of more than
100 °C.
ÎIn order to avoid scalding,
pay attention to the system
temperatures!
The air separator is used for venting the water/ glycol
mixture in the solar circuit.The air separated from the
heat transfer fluid gathers in the air scoop and can be
discharged manually at the air vent valve.
ÎOpen the air vent valve and collect the discharged
fluid in a suitable container.
ÎCheck the system pressure after bleeding and, if
necessary, increase it to the specified operating
pressure.
9 Maintenance
In the case of maintenance (such as a replacement of
the pump) proceed as follows:
ÎClose the ball valve (4).
ÎTurn the slot of the flowmeter spindle by 90°
anti-clockwise (see figure below).
The heat transfer fluid can now be drained from the
pump.
ÎOpen the drain valve (3).
If necessary, open the union nut at the pressure side.
ÎNow dismount the pump.
10 Safety devices
The pump station is equipped with a diaphragm safety
valve which corresponds to the relevant directives
and regulations. For installation and operation, please
pay attention to the following advice:
• The safety valve has to be easily accessible.The ef-
ficiency of the valve must not be influenced or disa-
bled by barriers!
• The strainer or other restriction devices must not
be mounted between collector (-field) and safety
valve!
• The diameter of the discharge pipe must cor-
respond to the diameter of the valve outlet; the
maximum length must not exceed 2 m; more than
2 bends are inadmissible. When these values are
exceeded, you have to install a discharge pipe with
larger dimensions. Do not use more than 3 bends
and pipes longer than 4 m!
• If the discharge pipe leads into a drain pipe with a
funnel, the diameter of the drain pipe has to be at
least twice as large as the valve inlet.The opening of
the discharge pipe must be inclined downwards. It
must be routed such that the opening can be seen
but does not present any risk to a person standing
or passing by.
• We recommend placing a container below the dis-
charge pipe. If the safety valve opens, the fluid will
be collected and can be refilled into the system
when the pressure is too low.

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Wall mounting for diaphragm-type expansion
vessel
Wall mounting for diaphragm-type expansion vessel
with screws and wall plugs, high grade steel corru-
gated tube and connection thread ¾". Including quick
release valve coupling enabling removal of expansion
without draining down of the system.
Filling and injection pump
Filling and injection pump with non-return valve for
pressure increase and refilling of heat transfer fluids.
½" OT self-sealing with O-ring, 15mm tube connec-
tion. Pump output 2 l/min, 4.5 bar max.
ALS15 discharge hose
1.5 m hose for connection to the safety valve of the
FlowSol® BHE WMZ pump station.
See our full range of accessories on our website:
www.resol.com
12 Information about the pump
Depending on the version, the station is equipped
with different pumps. Data concerning the pump in
your station are available at the pump manufacturer
under www.wilointec.com. Upon request we will
provide you with further information.
11 Accessories
SBS 2000 filling and flushing station
The SBS 2000 has been especially designed for pro-
fessionally filling and flushing solar thermal and heat-
ing systems. Its many thought-out details facilitate
transport, operation and cleaning, the attractive de-
sign makes it the ideal companion for a professional
performance.
Heat transfer fluids
In our product portfolio, you will find a range of heat
transfer fluids for different applications, available as
readymix or concentrate.
Note:
This pump station can be used with the heat
transfer fluids Tyfocor L, L eco and LS.
13 Lists of spare parts
12
2
5
1
6
7a,b,c,d
8
10 11 4
13
3
Pos. Art. no. Article
1 11200054 Safety valve 6 bar
2 11200039 Pressure gauge
3 11200058 Fill / Drain valve
4 11200069 Ball valve (return) with thermometer
and integrated non-return valve
5 11200058 Fill / Drain valve
6 28000099 Wilo PARA ST15-130/7-50/ iPWM2-12
7a 13000020 VFS 1-12
7b 13000030 VFS 2-40
8 11200062 Ball valve (flow) with thermometer and
integrated non-return valve
9 28000491 Air separator (not shown)
10 11200071 Wall mounting bracket
11 70001512 Back half of the insulation
12 70001614 Front half of the insulation
DeltaSol®BX
13 70001612 Hinged controller panel

Distributed by: RESOL – Elektronische Regelungen GmbH
Heiskampstraße 10
45527 Hattingen / Germany
Tel.: [phone] / 96 48 - 0
Fax: [phone] / 96 48 - 755
www.resol.com
[email protected]
Important note
The texts and drawings in this manual are correct to the best of our knowledge. As
faults can never be excluded, please note:
Your own calculations and plans, under consideration of the current standards and
directions should only be basis for your projects.We do not offer a guarantee for
the completeness of the drawings and texts of this manual - they only represent
some examples.They can only be used at your own risk. No liability is assumed for
incorrect, incomplete or false information and / or the resulting damages.
Note
The design and the specifications can be changed without notice.
The illustrations may differ from the original product.
Imprint
This mounting- and operation manual including all parts is copyrighted. Another
use outside the copyright requires the approval of RESOL – Elektronische Rege-
lungen GmbH. This especially applies for copies, translations, micro films and the
storage into electronic systems.
© RESOL – Elektronische Regelungen GmbH