Sime VERA HE 25, User, Installation And Servicing Instructions

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62
EN
m
CAUTION
– The height of the boiler is to be such that
disassembly and maintenance interventions are
facilitated.
6.9 Plumbing connections
The plumbing connections have the following characteristics
and dimensions.
175
95
65 65 65 65 = =
48
400
M
Sc
Sc
U G E R
Fig. 22
Description
Vera HE
25 30
M - System delivery Ø 3/4" G
R - System return Ø 3/4" G
U - Domestic hot water output Ø 1/2" G
E - Domestic hot water inlet Ø 1/2" G
G - Gas supply Ø 3/4" G
Sc - Condensate outlet Ø 20 mm
6.9.1 Plumbing accessories (optional)
To facilitate plumbing and gas connections to the systems, the
accessories as shown in the table below are available and are
to be ordered separately from the boiler.
DESCRIPTION CODE
Installation plate 8075441
Curve kit 8075418
Curve and valve kit with connections from DIN
to SIME
8075443
Cocks kit 8091806
Valve kit with connections from DIN to SIME 8075442
Wall mount replacement kit for other makers 8093900
Fitting protection Kit 8094530
Polyphosphate dosing kit 8101700
Dosing recharge kit 8101710
NOTE:
kit instructions are supplied with the accessory itself or
are to be found on the packaging.
6.10 Condensate outlet/collection
In order to collect the condensate, it is recommended that:
– the appliance condensate outlets and the smoke outlet are
ducted
– a neutralising device is prearranged
– the outlet incline is
>3%
.
m
CAUTION
– The condensate outlet duct must be airtight,
suitably sized to that of the siphon and must not be
restricted at any point.
– The condensate outlet must be constructed in full
compliance of the National or Local regulations in
force.
– Before commissioning the appliance, fill the siphon
with water.
6.11 Gas supply
Vera HE
boilers leave the factory prearranged for gas G20
and can also work with G31 without the need for any type of
mechanical conversion. Simply select parameter
"03"
(see “
Parameter setting and display") and set the type of gas to be
used.
If changing the type of gas to be used, carry out the entire
appliance
"COMMISSIONING"
phase.
Boiler connection to the gas mains must be carried out in full
compliance with installation Standards in force.
Before connecting the boiler to the gas mains, the user must
ensure that:
– the type of gas is correct for the appliance
– the pipes are clean
– the gas supply pipe is the same dimension as or greater than
that of the boiler fitting (G3/4") and with a load loss less than
or equal to that contemplated between the gas mains and
the boiler.
a
WARNING
Once installation has been completed, check that
the joints are air tight as indicated in the installation
Standards.
m
CAUTION
It is recommended that the gas line has a suitable
filter.
m
CAUTION
If the gas supply is changed from G20 to G31, mark
the box on the TECHNICAL DATA PLATE.
X
G31 - 37 mbar