Vaillant Vantage 120 User manual

2140100
ETC 00394
9411064
Installation Instructions
Unvented hot water storage cylinders
for use with Vaillant boilers
GB
Vaillant Vantage 120
Vaillant Vantage 150
Vaillant Vantage 200

Contents
Vaillant Vantage 120/150/2002
Page
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Technical data . . . . . . . . . . . . . . . . . . . . . . 5
3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Applications . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Functional diagrams . . . . . . . . . . . . . . . . . . 11
5.1 Functional diagram of the primary circuit . . . . 11
5.2 Functional diagram of the secondary
connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Functional description . . . . . . . . . . . . . . . . 13
6.1 D.H.W. Temperature Control . . . . . . . . . . . . . . . 13
6.2 C.H. Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Primary Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4 Secondary System . . . . . . . . . . . . . . . . . . . . . . . 14
6.5 Immersion Heater . . . . . . . . . . . . . . . . . . . . . . . 14
6.6 Secondary Return . . . . . . . . . . . . . . . . . . . . . . . 14
7 Installation requirements . . . . . . . . . . . . . . 15
7.1 Siting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2 Mains Water Pressure . . . . . . . . . . . . . . . . . . . . 16
7.3 Secondary System . . . . . . . . . . . . . . . . . . . . . . . 17
7.4 Pipework - Primary Circuit . . . . . . . . . . . . . . . . 18
7.5 Discharge Pipework . . . . . . . . . . . . . . . . . . . . . . 19
7.5.1 High Level Termination . . . . . . . . . . . . . . . . . . . 20
8 Installation procedure . . . . . . . . . . . . . . . . 21
8.1 Primary pipework . . . . . . . . . . . . . . . . . . . . . . . . 21
8.2 Secondary system Pipework . . . . . . . . . . . . . . . 22
8.3 Safety valve discharge pipework . . . . . . . . . . . 23
8.4 Electrical connections and controls . . . . . . . . . 25
8.4.1 Immersion Heater . . . . . . . . . . . . . . . . . . . . . . . 25
8.4.2 VANTAGE Electrical Connections
and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.4.3 Control options - system wiring scheme . . . . . 26
9 Commissioning . . . . . . . . . . . . . . . . . . . . . . 28
9.1 Filling Secondary D.H.W. Circuit . . . . . . . . . . . . 28
9.2 Filling the Primary Circuit . . . . . . . . . . . . . . . . . 29
9.3 Operating the Vaillant Boiler . . . . . . . . . . . . . . 29
9.4 User’s Instructions . . . . . . . . . . . . . . . . . . . . . . . 30
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . 31
11 Fault Finding . . . . . . . . . . . . . . . . . . . . . . . 32
We cannot accept responsibility for any damage which may occur as a result of non-observance of these
instructions. Subject to alteration.

Description 1
Vaillant Vantage 120/150/200 3
1 Description
The VANTAGE range of unvented hot water storage
cylinders are indirectly heated cylinders which are desi-
gned for use with Vaillant gas boilers only. The VANTA-
GE must NOTbe installed with boilers supplied by any
other manufacturer.
VANTAGE cylinders are available in three sizes of 120,
150 and 200 litre nominal capacity. The cylinders are of
glass lined steel construction, insulated with CFC free
foam and enclosed in a decorative sheet metal casing.
They are supplied with all necessary cold and hot water
controls and are fitted with a mid position 3 port diver-
ter valve for control of central heating and domestic hot
water.
The VANTAGE cylinders are prefitted with an operating
thermostat for controlling the water temperature.
VANTAGE cylinders are also provided with an auxiliary
back up electric immersion heater, including operating
thermostat and energy cut out.
The VANTAGE cylinders operate using a mains water
pressure supply and do not require a feed from a cold
water storage tank. The VANTAGE cylinders have 22 mm
D. H. W. outlet and cold water mains inlet connections
for optimum flow rate. To achieve optimum performance
from the VANTAGE an adequate cold water mains supply
pressure and flow rate must be available (see section
7.2: Mains Water pressure).

1 Description
Note To Installers
This product has been assessed and found to comply
with the requirements of the Building Regulations for
unvented hot water storage systems and must not be
altered or modified in any way.
The installation must be carried out by a competent per-
son and be in accordance with the relevant require-
ments of the Local Authority, Building Regulations,
Building Standards (Scotland) Regulations and the bye-
laws of the local Water Undertaking. The installation is
subject to Building Regulation approval, notify the Local
Authority of intention to install. In the event of parts
replacement, use only genuine spare parts supplied by
Vaillant Ltd.
Check that the cylinder has been supplied with the follo-
wing:
– Packed inside cylinder carton
Tundish, cylinder drain valve,
appliance top cover (including
operating thermostat), functional water controls pack,
installation and user instructions.
– Packed in separate carton
Expansion vessel (12 litre for
VANTAGE 120/150, 18 litre for VANTAGE 200).
Prior to installation, ensure that the VANTAGE cylinder
is stored upright in dry conditions. The VANTAGE must
be kept upright during transportation.
Please also refer to “General Requirements“ in the
installation instructions supplied with the Vaillant boiler.
Vaillant Vantage 120/150/2004

Vantage Vantage Vantage Unit
120 150 200
Nominal storage capacity 120 150 200 litres
Nominal DHW flow from
VANTAGE 120/150 15 l/min @ 60 °C
VANTAGE 200 20 l/min @ 60 °C
Maximum water supply pressure 10 bar
Maximum primary circuit pressure 2.5 bar
Expansion vessel charge pressure 4 bar
Operating pressure 3.5 bar
Net weight 70 82 101 kg
Weight (full) 190 232 301 kg
Cylinder connections:
Cold mains inlet 22 mm compression
D.H.W. outlet 22 mm compression
Balanced pressure cold water outlet 22 mm compression
Secondary return G 3/4
Primary flow 22 mm compression
(on 3 port valve)
Primary return 22 mm compression
Electrical connections:
3 kW Immersion heater 230/240 V, 50 Hz
Three port valve 230/240 V, 50 Hz
Cylinder thermostat 230/240 V, 50 Hz
Technical data 2
Vaillant Vantage 120/150/200 5
2 Technical data

2 Technical data
Vaillant Vantage 120/150/2006
70 Note: Times shown for Vaillant boilers
assume no simultaneous heating demand
60
Approximate cylinder heat up time - 15 °C to 65 °C (minutes)
Reheat time for 70 % of cylinder contents (minutes)
50
40
10
20
30
40
50
30
20
10
810 Heat input
to cylinder (kW)
Cylinder Heat Up Times
ecoMAX boiler
12
615 E 618/2 E620 E 622/2 E624 E 628 E
613/2 E
14 16 18 20 22 24 26 28
Vantage 200
Vantage 150
Vantage 120
THERMOcompact boiler
VIH 380/2

abc de f
Vantage 120 768 900 797 560 655 268
Vantage 150 961 1086 983 600 675 261
Vantage 200 1231 1356 1253 600 675 261
Vaillant Vantage 120/150/200 7
Dimensions 3
Fig. 2 (all dimensions in mm)
b
c
70
103
a
f
e
170
d
120
127
VIH 382/3 (Redesign)
3 Dimensions

THERMOcompact and ecoMAX System boilers
THERMOcompact ecoMAX
615 E, 620 E, 624 E, 628 E 613/2 E, 618/2 E, 622/2 E
Vantage cylinder 120 A 1845 1910
150 2045 2110
200 2345 2410
Vantage cylinder 120 B 2200 2200
150 2400 2400
200 2700 2700
C305 240
D 145 190
3 Dimensions
Vaillant Vantage 120/150/2008
Fig. 3
C
D
B
A
VIH 378/3 (Redesign)
Boiler fitted directly above the cylinder
Table 1

Dimensions 3
Vaillant Vantage 120/150/200 9
A Primary flow from boiler
B Heating flow
C Primary return to boiler
D Mains cold water inlet
E Domestic hot water outlet
F Temperature and pressure relief valve discharge
G Sacrificial anode
H Primary circuit air release valves
I Secondary return connection
Fig. 4 Connection details
CA
B
F
D
E
H
G
I
Vantage 120, 150, 200
VIH 360/0 (Redesign)

4 Applications
4 Applications
The Vaillant VANTAGE may only be connected to a
Vaillant boiler.
No other indirect heat source may be used.
The following Vaillant boilers are available for use with
the VANTAGE cylinders:
THERMOcompact system boilers
615 E (VU 152-5)
620 E (VU 202-5)
624 E (VU 242-5)
628 E (VU 282-5)
ecoMAX - Condensing system boilers
613/2 E (VU 126)
618/2 E (VU 196)
622/2 E (VU 246)
4.1 Typical applications
– Single bathroom property:
VANTAGE 120
– Single bathroom property with an en-suite shower
room:
VANTAGE 120 / 150
– Two bathroom property:
VANTAGE 150
– Two bathroom property with an en-suite shower room:
VANTAGE 150 / 200
– Larger properties:
VANTAGE 200
Commercial use: size depending upon hot water
requirements
Note:
1 Select the appropriate Vaillant boiler to match
the heating load (with the normal allowance for
heating up from cold) plus an allowance for
heating the hot water cylinder. Typically it is
practice to allow an additional 2-3 kW for the
hot water production.
2 Consideration should be given to the use of a
larger size of cylinder than shown above
where high water demands are likely.
Vaillant Vantage 120/150/20010

Functional diagrams 5
Vaillant Vantage 120/150/200 11
1 Vaillant boiler
2 VANTAGE cylinder
3 Circulating pump
4 3 port diverter valve
5 Immersion heater
A Boiler flow
B Boiler return
C C/H flow
D C/H return
Fig. 5
1
3
B
A
DC
5
4
2
5 Functional diagrams
5.1 Functional diagram of the primary circuit
VIH 362/2

5 Functional diagrams
1 Temperature and pressure relief valve
2 Expansion relief valve combined with check valve
3 Pressure limiting valve combined with strainer
4 DHW thermostat pocket
5 Expansion vessel
6 Secondary return connection
A Cold water mains inlet
B Balanced pressure cold water outlet
C DHW outlet
D Tundish
E Cylinder drain point
Vaillant Vantage 120/150/20012
Fig. 6
2
5
13
C
E
D
A
B
4
6
5.2 Functional diagram of the secondary connections
VIH 363/2

Functional description 6
Vaillant Vantage 120/150/200 13
6 Functional description
6.1 D.H.W. Temperature Control
The VANTAGE is supplied fitted with a user adjustable
domestic hot water (DHW) thermostat and also a 3 port
mid position diverter valve.
6.2 C.H. Control
Central heating is controlled by the fitted 3 port mid
position diverter valve in conjunction with suitable
external controls, such as a programmer, room ther-
mostat or thermostatic radiator valves. The external
electrical controls should be wired to the 3 port valve
and cylinder thermostat in the normal way, as shown in
section 8.4.2, VANTAGE Electrical Connections and
Controls. No additional motorised valves are necessary.
6.3 Primary Circuit
The VANTAGE cylinder is provided for connection to the
flow and return of any Vaillant wall hung system boiler.
All Vaillant wall hung system boilers have the following
components built-in:
– Sealed primary system equipment (expansion vessel,
pressure relief valve and pressure gauge)
– Circulating pump
– Automatic primary system by-pass
– Boiler overheat thermostat
The 3 port valve is supplied fitted to the cylinder for
easy connection to the primary flow from the Vaillant
boiler, and the heating flow. No additional motorised val-
ves are required.

6 Functional description
6.4 Secondary System
The VANTAGE is provided with all necessary safety and
control devices for unvented DHW operation.
These are as follows:
AA prefitted temperature and pressure relief valve
(90 °C, 7 bar) (An additional overheat thermostat is
contained within the Vaillant boiler).
BExpansion relief valve (6.0 bar) incorporating a non
return valve.
CPressure limiting valve (3.5 bar) incorporating a line
strainer.
The VANTAGE cylinder is supplied with a separately
packed expansion vessel.
– VANTAGE 120 / 150:
12 Litre vessel (Art no. 2370051)
– VANTAGE 200:
18 Litre vessel (Art. no. 2370052)
6.5 Immersion Heater
A 3 kW immersion heater is fitted to provide an auxiliary
back-up means of DHW.
The immersion heater is fitted to the inspection flange,
located in the side of the cylinder.
The immersion heater is designed for use in unvented
installations and contains a safety overheat thermostat
in addition to the operating thermostat.
Note:
Only the correct immersion heater containing a
safety overheat thermostat may be used for
replacement (see table 2).
Vantage 120 - 200 equipped with heater type
Redring LU 11 TC.
6.6 Secondary Return
For larger systems incorporating long pipe runs a secon-
dary return connection is provided on the top of the
cylinder.
Note:
A recirculation system incorporating a suitable
non ferrous pump may be connected into this
point.
Vaillant Vantage 120/150/20014

Installation requirements 7
Vaillant Vantage 120/150/200 15
7 Installation requirements
7.1 Siting
Locate the VANTAGE in the building in the most conveni-
ent position ensuring that:
– The discharge pipe from the tundish can be installed
with a minimum fall of 1:200 and can be terminated in
a safe and visible position (see section 7.5 Discharge
pipework).
– The base chosen for the unit is level and capable of
supporting the weight of the cylinder when full
(see section 2: Technical Data).
– The installation site is frost-free. If necessary provide
a frost protection thermostat.
– Access is available for user operation of the DHW tem-
perature control on the cylinder.
– Suitable clearances exist to allow installation, checking
and repressurising of the expansion vessel.
– The installation site chosen does not result in excessi-
ve ”dead leg” distances, particularly to the point of
most frequent use.
Note:
For larger systems incorporating long pipe runs
a secondary return connection is provided on
the top of the cylinder. A recirculation system
incorporating a suitable non ferrous pump may
be connected into this point.
– A suitable cold mains water supply pipe can be provi-
ded to the VANTAGE direct from the main water stop
valve of the building.

7 Installation requirements
7.2 Mains Water Pressure
The DHW performance of an unvented cylinder installati-
on will correspond to the available mains water supply
pressure and flow rate. To achieve optimum performan-
ce from the VANTAGE a suitable cold mains water supp-
ly must be available, i. e. the measured static pressure
from the incoming mains water supply should be at least
2.0 bar. A corresponding flow rate at least 20-25 l/min
should be available.
Note:
Mains water pressures will reduce during periods
of peak demand. Ensure that measurements are
taken during these periods.
Once the available mains supply pressure and flowrate is
known the respective flowrate from the VANTAGE can
be obtained from fig. 7.
Example:
If the measured cold mains supply pressure is 2 bar
static and the cold mains flow rate available is 30 l/min,
the available flow rate of mixed water at 40 °C will be
25 l/min (from 15 l/min hot water from the VANTAGE
k 60 °C together with 10 l/min cold water @ 10°C).
The VANTAGE will operate satisfactorily with water sup-
ply pressures below 2 bar although flow rates will be
reduced. If the supply pressure is below 1 bar the
VANTAGE unvented storage cylinder should not be
installed. Contact Vaillant Ltd for details on alternative
hot water supply systems.
In order to minimise frictional losses minimum 3/4 inch
bore is recommended for new cold mains supply pipe-
work into the dwelling although satisfactory performan-
ce can be achieved with 1/2 inch bore pipework.
Vaillant Vantage 120/150/20016

Installation requirements 7
Vaillant Vantage 120/150/200 17
7.3 Secondary System
To achieve optimum distribution of the water supply it is
important that the water system pipework and
terminal fittings are correctly sized and balanced. The
teed-off supply to the bath outlet should be in 15 mm
pipework. The tee-offs to sinks and basins should be in
10 mm pipework. Terminal fittings should be suitable for
mains pressure operation and taps should be of the
aerated type to prevent splashing.
Some designs of terminal fittings may allow excessive
flow rates resulting in user inconvenience and starvation
of other outlets. In these circumstances provide a valve
in the supply to that terminal fitting in order that the
flow rate can be regulated.
If the VANTAGE is being installed to existing pipework
with a 22 mm run to the bath terminal fittings and/or 15
mm to sinks/basins, an adjustable valve should be fitted
in the supply to each outlet: By adjustment of these val-
ves, flow rates to fittings can be regulated to achieve
correct system balancing.
If the water capacity of the additional secondary pipe-
work exceeds
20 litres (VANTAGE 120 or 200) or
10 litres (VANTAGE 150) an
additional expansion vessel may be required.
Pipe capacities for copper tube are:
15 mm 0.13 l/m
22 mm 0.38 l/m
28 mm 0.55 l/m
The cylinder may be drained completely for maintenan-
ce works via the drain valve (E, fig. 6) after first turning
off the water supply to the cylinder and opening the hot
draw off taps. Adequate access to the drain valve must
therefore be available.
Fig. 7
40
40
8 bar*
4 bar*
3 bar*
2 bar*
1 bar*
8 bar*
4 bar*
3 bar*
2 bar*
1 bar*
30
30
20
20
flow available (litres/min) at entry to system
Mixed water @ 40 °C, mixed from
60 % hot water @ 60 °C and
40 % cold water @ 10 °C
Notes:
1) flow rates shown apply to situations where the supply is capable of supplying an adequate dynamic pressure.
2) the graph represents the results of tests carried out by the BBA and Vaillant.
3) where static water pressures are less than 1 bar, consult Vaillant Ltd.
* static supply pressure of incoming water supply.
flow out (litres/min) of the system
10
10
0
40
40
30
30
20
20
flow available (litres/min) at entry to system
flow out (litres/min) of the system
10
10
0
Flow rates from VANTAGE, hot 60 °C.
Flow rates from VANTAGE, hot cold mixed.
VIH 364/1

Boiler Pump head available to
heating circuit (m)
THERMOcompact 615 E 2,5
THERMOcompact 620 E 2,5
THERMOcompact 624 E 2,5
THERMOcompact 628 E 2,5
ecoMAX 613/2 E 2,5
ecoMAX 618/2 E 2,5
ecoMAX 622/2 E 2,5
7 Installation requirements
7.4 Pipework – Primary Circuit
The primary circuit pipework
between the Vaillant boiler and the VANTAGE should be
installed using copper tube of minimum size 22 mm.
If the distance between the boiler and the cylinder is
excessive, a larger pipe diameter may be necessary. It is
not necessary to install a circulating pump in this pipe-
work because all Vaillant wall mounted boilers contain a
built-in circulating pump.
With the VANTAGE connected to a Vaillant boiler the
remaining pump head available, at a flow rate
corresponding to 20 °C temperature difference, is given
in table 3.
System Pipework should be sized such that the resi-
stance of the heating circuit offering the greatest resi-
stance to flow (the index circuit) does not exceed this
figure.
Vaillant Vantage 120/150/20018

7.5 Discharge Pipework
The outlet connections of both the temperature and
pressure relief valve and expansion relief valve should
be connected in 15 mm copper tube to the tundish sup-
plied.
The tundish should be installed vertically, as close to the
VANTAGE as possible and within 500 mm of the tempe-
rature and pressure relief and expansion relief valve out-
lets. It must be positioned away from any electrical com-
ponents and installed in the same space as the
VANTAGE cylinder.
The discharge pipework must be installed using mini-
mum 22 mm copper pipework from the 1" inch BSP
female connection on the tundish to a safe and visible
discharge point. There must be a vertical section of pipe
at least 300 mm long, below the tundish before any
bends or elbows in the pipework. Increase the diameter
of the pipework if the total resistance of the discharge
pipework exceeds the figures shown in table 4.
Example
22 mm discharge pipe having 4 elbows and a length of
7 m from the tundish to the discharge point:
Resistance for 4 elbows
at 0.8 m each = 3.2 m
Resistance of discharge pipe = 7.0 m
Total Resistance = 10.2 m
The total resistance of the discharge pipework is
greater than the maximum allowed for 22 mm
pipework (9 m). Therefore calculate the next largest
size.
28 mm discharge pipe with 4 elbows and 7 m length
from tundish to discharge point.
Resistance for 4 elbows
at 1.0 m each = 4.0 m
Resistance of discharge pipe = 7.0 m
Total Resistance = 11.0 m
The total resistance of the dischargepipework is less
than the maximumallowed for 28 mm pipework (18 m)
therefore the discharge pipework size is acceptable.
Minimum size Maximum total resistance Resistance created
of discharge allowed expressed as a by each elbow
pipework length of straight pipe or bend
from Tundish (i. e. no elbows or bends)
22 mm up to 9 m 0.8 m
28 mm up to 18 mm 1.0 m
35 mm up to 27 mm 1.4 m
Installation requirements 7
Vaillant Vantage 120/150/200 19

7 Installation requirements
Fig. 8
metal discharge pipe from
temperature relief valve to tundish
metal discharge pipe from tundish
with continuous fall. See 7.5
Table 4 and worked example
tundish Discharge below
fixed grating
fixed grating
trapped gully
safety
device
(e.g.
temperature
relief valve) 500 mm
maximum
300 mm
minimum
Under fault conditions, the discharge warning pipe can
emit water at near boiling temperature. Ensure the
discharge pipe terminates at a safe position where there
is no risk of contact with hot water by persons in or
about the building.
A suitable position for the discharge point is ideally
below a fixed grating and above the water seal in a
trapped gully. Downward discharges at low level, i. e. up
to 100 mm above external surfaces such as car parks,
hard standings, grassed areas, etc. are acceptable provi-
ding that where children may play or otherwise come
into contact with discharges a wire cage or similar guard
is positioned to prevent contact, whilst maintaining visi-
bility.
Do not fit any valves or taps to the discharge pipework.
Ensure the pipework has at least 1:200 fall
continuously from the tundish to the discharge point.
The discharge pipe from the pressure relief valve of the
Vaillant boiler may be teed-into the discharge pipework
from the VANTAGE downstream of the tundish.
7.5.1 High Level Termination
Providing that the point of termination is such that per-
sons in or around the building will not be endangered
should discharge take place, the method of termination
shown in fig. 8a is satisfactory. Examples of points to
consider when deciding whether a location for the high
level discharge is suitable are:
– The possibility, taking into account wind effect, that
someone may be in the path of the water being
discharged and if so, whether the temperature of the
discharge water will have been sufficiently reduced to
not be dangerous. Thermal conductivity of the struc-
ture’s surface, climatic conditions and location and ori-
entation of the discharge pipe may or may not have
an effect on reducing the temperature of the dischar-
ge water.
– The location of windows and similar openings.
– The likelihood of a pram being left beneath the point
of discharge.
– The ability of the structures surface to withstand near
boiling water.
– The possibility of ice formation if water is discharged
onto pedestrian walkways.
Vaillant Vantage 120/150/20020
VIH 365/1
Typical discharge pipe arrangement
Fig. 8a
300 mm
minimum
tundish
discharge pipe
X = diameter of
discharge pipe
X
High level termination
VIH 372/1