Connecting The Gas And Water ("Fig. 17"); Installation Of Condensate Drain Pipe - Riello Vokera VISION PLUS 20 S User Instructions

Vertical Flue Terminals & Accessories
Code Description
20122763 Vertical Flue Kit
20132059 90-degree bend
20132058 45-degree bend (2)
20132060 500mm extension
20132061 1000mm extension
20132062 2000mm extension
20131979 telescopic extension
20135587 100mm flue brackets (5)
20132050 pitched roof flashing
20135582 flat roof flashing
IMPORTANT
The vertical flue terminal is 1.0 metre in length and cannot be
cut; therefore it may be necessary to adjust the height of the
appliance to suit or use a suitable extension.
Fig. 16

CONNECTING THE GAS AND WATER ("FIG. 17")

4.3
The appliance is supplied with an accessory pack that includes
service valves. The service valves are of the compression type.
The accessory pack contains sealing washers' etc, for use with the
service valves. When connecting pipe work to the valves, tighten the
compression end first then insert the sealing washers before tightening
the valve to the appliance.
NOTE
It will be necessary to hold the valve with one spanner whilst tightening
with another.
4.3.1 GAS
The appliance is supplied with a 15mm service valve, connect a 15mm
pipe to the inlet of the valve and tighten both nuts.
NOTE
It will be necessary to calculate the diameter of the gas supply pipe to
ensure the appliance has an adequate supply of gas.
4.3.2 FLOW & RETURN
The appliance is supplied with 22mm service valves for the flow and
return connections, connect a 22mm pipe to the inlet of each valve and
tighten both nuts.
NOTE
Depending on system requirements, it may necessary to increase the
size of the flow & return pipe work after the service valve connections.
4.3.3
Connect the safety valve connection pipe to the safety valve outlet and
Length
tighten. The discharge pipe must have a continuous fall away from the
1000mm
appliance to outside and allow any water to drain
away thereby eliminating the possibility of freezing.
N/A
The discharge pipe must terminate in a position where any water - pos-
N/A
sibly boiling - discharges safely without causing damage or
500mm
injury, ut is still visible.
1000mm
2000mm
372/519mm
N/A
N/A
N/A
C/H return valve
Fig. 17
4.3.4
This appliance will - under normal operating conditions - produce con-
densate fluid that will require to be disposed of via the dwelling's waste
water drainage system.
Vokera strongly recommends that the condensate pipe is connected to
the internal waste water pipework in accordance with BS6798. BS6798
provides comprehensive instruction and advice on all permissible con-
densate disposal methods; notwithstanding this, it is essential that the
following is strictly adhered to:
Use only plastic drainage pipe (minimum OD of 21.5mm)
Horizontal runs must incorporate a minimum 45mm fall per metre, away
from the appliance
External pipework and/or pipework in unheated areas, must have a
minimum OD of 32mm and be insulated with Class-O pipe insulation
The route, type, and termination of the condensate disposal method,
must not permit any spillage of condensate fluid, into the dwelling in the
event of a blockage or freezing of the condensate pipework.
Should it not be possible to route and terminate the condensate pipework
internally using 'gravity discharge'; Vokera recommends that the Vokera
condensate pump (code 404) be considered as an alternative solution.
Ensure that the end-user is aware of the effect/consequences of the
condensate pipework becoming blocked or frozen.
4.4
Before starting the boiler, even just temporarily, the SRD device sup-
plied must be installed.
The manufacturer does NOT accept liability for damage to persons
or objects caused by the boiler operating without the SRD device
being installed correctly.
For the installation proceed as follows:
- remove the plug (T) from the siphon
- fix the SRD device to the siphon, placing the gasket in-between,
screwing it on all the way and checking its seal
- -connect the condensate discharge pipe supplied as standard with
the product, then drain the
- condensate into a suitable drainage system in compliance with
current norms.
If it is not possible to fit the SRD device due to the interference with
other objects under the boiler, it is possible to fit it in a different posi-
tion by inserting a connecting pipe between the SRD device and
the siphon in order to provide a fully airtight seal. The SRD
device should always be positioned VERTICALLY in order to
ensure it functions correctly.
SAFETY VALVE
Safety valve
outlet
C/H flow
valve
CONDENSE PIPE
INSTALLATION OF CONDENSATE DRAIN
PIPE
Gas
cock
21