Q-Blue Showersave QB1-21 User manual

Showersave®
QB1-21
QB1-16
QB1-12
Installation Manual

Contents
Page
1.0 General information 2
1.1 Description of heat exchanger 2
1.2 Safety and legionella 2
1.3 Maintenance and cleaning 3
2.0 Points of attention when installing 3
3.0 Installation of the Showersave®QB1 4
3.1 Systems A, B en C 4
3.2 Connections 5
3.3 Positioning of the Showersave®QB1 5
3.4 Fixation of the Showersave®QB1 5
4.0 Technical information of the Showersave®QB1 6
4.1 Pressureloss 6
4.2 Dimensioning (sizes) for mounting of the Showersave®QB1 7
Page 1
Showersave®QB1-21 (heat exchanger)
QB1-16
QB1-12

1.0 General Information
This Installation Manual is about installation of the Q-Blue Showersave®QB1-series. This serie contains the
Showersave®QB1-21, the Showersave®QB1-16 and the Showersave®QB1-12. The way these products work is
identical, only the lenghts of the heatexchangers differ. Because the lenghts of the heatexchangers differ also the
efficiencys and the pressurelosses differ (see points 4.0 and 4.1 of this manual).
On average, a shower uses 60 litres of water at a temperature of between 38 and 40 °C. This shower water goes
straight down the drain, wasting a great deal of heat and energy. By running the hot waste water through the
Showersave QB1 this heat can be transferred to the water on it’s way to the boiler and/or the cold water tap of
the shower’s mixer tap. The heat transfer takes place simultaneously while you shower.
Page 2
1.1 Description of the heat exchanger
In fact the Showersave®QB1 contains three copper pipes, the wastewater pipe, the outer pipe and a pipe in
between which is connexted to the outer pipe. This is how a double barrier is realised between waste water and
tap water. The miniscule space between the pipe in between and the wastewater pipe (wastewater pipe)
contains air. If the inner pipe develops a leak, this becomes visual apparent as water will drip from the heat
exchanger. This double wall seperation is according to EN1717:2000 and is tested and approved by KIWA. This
system is also WRAS approved.
Each Showersave®QB1 has a label (see fig. 1) with printed on it a unique serial number and also technical
information. This label should always stay on the Showersave®QB1 and may not be removed. If the label is
removed or not readable garantee is no longer valid.
1.2 Safety and legionella
When no cold water is flowing up the Showersave®QB1, the temperature in the pipe should be prevented from
becoming higher than 25°C. The Showersave®QB1 may therefore not be installed near heat conducting pipes, on
warm surfaces or in spaces with constantly high temperatures (>25°C). The cold water pipe, connection and the
outer wall of the Showersave®QB1 may therefore not be insulated.
fig. 1
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12

2.0 Points of attention when installing:
•The Showersave®QB1 should be mounted vertically both from
frontside as from the side
•The Showersave®QB1 is a device and should therefore be
mounted easily accesable, so that it can be easily installed and
uninstalled
•Before the freshwater connection a non-return valve and a
shut-off valve should be installed (type EA) (see afb.1 page 5)
•The Showersave®QB1 may not be mounted in an area where
the temperature normally is higher than 25 °C
•The Showersave®QB1, the water pipeline and the connections
may not be inslulated
•The waterconnections should be made with straight thread, so
not with conical thread
•Hemp may not be used on the connections
•The tightening moment of the connection may not exceed 120
Nm (Tip : use a counter key)
•The label with the serial number and technical information
may not be removed and should stay readable fig.2
Page 3
Waste water to
drain
Pre heated tap
water
Incoming (cold) tap
water
Shower waste
water flows in a
thin film along the
wall of the waste
water pipe
Shower waste water
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12
1.3 Maintenance and cleaning
Generally no maintenance is required. Efficiency can decrease as a result of dirt accumulating on the inside of the
Showersave®QB1. However, the waste water from the showersave flows at a high speed (>1m/s) along the inner
pipes wall. This is comparable to the water speed in a dishwasher. The water flows through the pipe in 2 seconds
and therefore no dirt will accumulate (normally).
If, for what reason, dirt accumulates, then a soap based cleaning agent can be used to flush the pipe. Cleaning
agents based on scouring or polishing agents are not allowed, because they can stik to the wall of the pipe and
reduce efficiency.
Connecting a wash basin to the Showersave®QB1 is not recommended as shaving gel and toothpaste are very
sticky and could adhere to the wall of the inner pipe.

3.0 Installation of the Showersave®QB1
3.1 Systems A, B en C
fig. 3
Page 4
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12
n
The inlet side of the Showersave®QB1 can be connected to the tap water system.
The outlet side can be installed in three different ways, namely:
System A: Combined connection to the shower mixer tap’s cold water connection and the heater/boiler
System B: Connection of the cold water connection from the shower mixer
System C: Connection to the water heater/boiler
System A System B System C

The Showersave®QB1 is considered a device. The space it is installed in should be large enough so that
inspections can be carried out properly and if necessary the Showersave®QB1 can be replaced easily. Access
has to be possible without extra work. When this is not respected any garantee claim will not be valid.
Possible positions of installation are a fixed cabinet, cilinder shaft with removable panel, technical area, stair
cupboard etc.
Positioning in a Electrical meter cupboard is only allowed when properly compartimented and only when
accordated by local building authority.
3.2 Connections
3.3 Positioning of the Showersave®QB1
The tap water connections should be demountable. Just before the
tap water connection a non-return valve and a shut-off valve should
be mounted (type EA) (see afb. 1).
3.4 Fixation of the Showersave®QB1
The Showersave®QB1 is mounted to the wall with two
special braces (see afb. 2). It is important to take good
care of that the Showersave®QB1 is mounted strictly
vertical, seen from the front as from the side.
Extra aeration
Dearation of the Showersave®QB1 is not
necessary, all air will disappear automatically
because the water flows from the bottom on the
top.
If aeration of the drainage area between the
showerplace and the Showersave®QB1 is
desired it can be achieved in two ways:
1. A connection to a relief pipe or stand pipe
(with relief pipe) of the shower (see fig. 4).
2. By using an aerator. The aerator must be
mounted vertically above the heat
exchanger and may not be placed lower
than 1 meter below the top of the shower
place. The aerator can be placed on the
rotator by replacing the 45 degrees bend for
a T-connector (see fig. 5).
(note: aerator is not standardly supplied)
fig. 4 fig. 5
Afb. 2
Page 5
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12
Afb. 1
EA beveiliging
EA beveiliging
a
aeration pipe
(relief pipe)
aerator
Non-return and
shut off valve Non-return and
shut off valve

Page 6
4.0 Technical information of the Showersave®QB1
Specifications QB1-21 QB1-16 QB1-12
Length : 2100 mm 1680 mm 1270 mm
Weight : 7,8 kg 6,1 kg 4,5 kg
Content water compatiment : 0,52 liter 0,39 liter 0,28 liter
Diameter (outer) waste water connection : 50 mm 50 mm 50 mm
Tap water connections : G1/2” G1/2” G1/2”
Max. allowed tightning moment : 150Nm 150Nm 150Nm
Max. allowed pressure wastewater : 1 Bar 1 Bar 1 Bar
Max. allowed pressure tap water : 8 Bar 8 Bar 8 Bar
Max. allowed temperature waste- or tap water : 60 graden 60 graden 60 graden
Efficiency on system A en 12,5 l/min flow (*) : 61,4% 56,1% 48,5%
Efficiency on system A en 9,2 l/min flow (*) : 64,6% 60,1% 52,7%
(*) efficiencys measured by KIWA
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12
4.1 Pressureloss
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
7 8,1 9,2 10 11 11,7 12,5 13,2 14
Drukverlies in bar -->
Debiet in liters per minuut -->
Grafiek drukval
Showersave® QB1-serie
QB1-12 QB1-16 QB1-21

Page 7
Version : March 2018
QB1-12
QB1-16QB1-21
Showersave®QB1-21 (heatexchanger)
QB1-16
QB1-12
4.1 Dimensioning (sizes) for mounting of the Showersave®QB1
Connection to
shower’s drain,
Ø50 mm
Connection to
shower’s drain,
Ø50 mm
Connection to
shower’s drain,
Ø50 mm
Connection for
preheated water
pipe female
BSP 1/2 ‘’
Connection for
preheated water
pipe female
BSP 1/2 ‘’
Connection for
preheated water
pipe female
BSP 1/2 ‘’
Fixation
brace
Fixation
brace Fixation
brace
Connection for
cold water
pipe female
BSP 1/2 ‘’
Connection for
cold water
pipe female
BSP 1/2 ‘’
Connection for
cold water
pipe female
BSP 1/2 ‘’
Connection to
drain Ø50mm
sliding sleeve
Connection to
drain Ø50mm
sliding sleeve
Connection to
drain Ø50mm
sliding sleeve