REV
.03-(16.03.2015)
4.1.6 WATER SIDE CONNECTION INSTRUCTIONS
The heat ng capac ty of the un t must be prev ously establ shed
by calculat ng the bu ld ng's heat requ rement accord ng to
current regulat ons. The system must be prov ded w th all the
components for correct and regular operat on. In part cular,
prov de for all the protect on and safety dev ces prescr bed by
current regulat ons for the complete system.
We strongly recommend to nstall two ball valves
under the bo ler, so the bo ler can be solated from
the heat ng system when needed.
4.1.7 EXPANSION VESSEL
Wallcon 115 s not suppl ed w th an expans on vessel;
therefore ts connect on must be carr ed out by the qual fied
nstaller. The capac ty of the expans on vessel must be chosen
and nstalled to match the capac ty of the central heat ng
system and the stat c pressure. We suggest you nstall the
expans on vessel n the return l ne of the central heat ng
system. It can be comb ned w th the dra n valve for serv c ng.
4.1.8 SAFETY VALVE
Safety valve outlet must be connected to collect on p pe to
prevent water spurt ng onto the floor n case of overpressure
n the heat ng c rcu t. Otherw se, f the d scharge valve cuts n
and floods the room, the bo ler manufacturer cannot be held
l able.
4.1.9 CONDANSATE DISCHARGE
The condensate dra n s n the left s de at the bottom of the
bo ler and has a 25mm hose d scharge. Connect th s flex ble
hose to the sewer system. Use only plast c parts w th the
condensate dra n. Metal l nes are not allowed. Blockage of th s
dra n may cause damage to the bo ler. The dra n connect on s
correct when the condensate can be seen flow ng away, e.g.
us ng a funnel. Any damage that may occur s not covered by
the warranty of the bo ler. There should be an open connect on
between the condensate hose from the bo ler, to the sewage
system. An under pressure n the sewage system should never
be able to suck on the bo ler condensate dra n hose. The
condensate dra n must be connected n accordance w th
current regulat ons.
Do not use the water system p pes to earth electr cal
appl ances.
4.1.10 FROST PROTECTION
Wallcon ser es bo ler has bu lt- n frost protect on, automat cally
act vat ng the central heat ng pump when the bo ler return
water temperature drops below 5°C. The pump and/or burner
w ll shut down as soon as the return temperature has reached
demanded po nt. The above-ment oned temperatures relates
to the temperature measured w th the RETURN sensor of the
bo ler. Th s Frost Protect on prov s on s for the bo ler only and
not for the all system.
4.1.11 DIRT SEPERATION
Always nstall a stra ner (water filter) and /or a d rt separator n
the return of the bo ler s such a way that the bo ler water s free
of any debr s/part cles. When us ng a water filter one should
check weekly after nstallat on to determ ne the stra ner clean ng
nterval.
Instruct ons for the nstaller
13
nclud ng an a r bleed valve so the stra ner can be solated from
the heat ng c rcu t for serv c ng. Clean water s mportant,
blocked heat exchangers do not fall under warranty. The filter
should be nstalled when replac ng bo lers n ex st ng systems.
The manufacturer decl nes any l ab l ty for damage caused to
the bo ler by fa lure to nstall or nadequate nstallat on of
th s filter. Before sw tch on the bo ler, water must be c rculate at
least 2 hours for el m nat on the mpur t es from the system
trough the m cro mpur ty seperator. In the end of the operat on,
safety dra n valve must be opened for remov ng the mpur t es.
It s also poss ble to use plate heat exchangers accord ng the
system character st cs. In any case, m cro mpur ty seperators
must be used n the system n the bo ler. Before nstallat on,
carefully wash all the p pes of the system to remove any
res duals or mpur t es that could affect proper operat on of the
un t. F lter must also be nstalled on the system return p p ng to
prevent mpur t es or sludge from the system clogg ng and
damag ng the bo ler.
We adv se to mount valves before and after the stra ner
There s an automat c a r vent mounted n the bo ler to remove
a r from the water c rcu t. Th s automat c a r vent s only for
el m nate the a r n the heat exchanger of the bo ler. One or more
external automat c a r vent(s) and/or a r separators should
always be nstalled n the heat ng system to el m nate a r trapped
n the heat ng c rcu t.
4.1.13 PUMP
The WALLCON 115 bo lers are suppl ed w th a bu lt- n
c rculat on pump w th 3-pos t on electr c speed control. The
pump s the s ngle-phase type (230 V - 50 Hz). To ensure
opt mal bo ler operat on, n the case of new systems (s ngle
p pe and module) t s recommended to use the pump at
max mum speed. The pump runs when heat s requ red. When
heat s no longer requ red, the pump w ll cont nue to run for
another 3 m nutes before t stops. The 24-hour cycle starts as
soon as the power supply to the bo ler s act vated.
4.1.12 AUTOMATIC AIR VENT
D rt
seperator
A r
seperator
Low loss
header
Plate heat
exchanger
F lter
0
1
2
3
4
5
6
7
H
[m]
0
10
20
30
40
50
60
70
[kPa]
p
0
1
2
3
4
5
6
7
8
Q [m /h]
QH Chart
3
Summary of Contents for wallcon 115
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