Connecting The Gas & Water - Riello Vokera VIBE MAX User Instructions

Fig. 13
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.
4.3 CONNECTING THE GAS & WATER
(FIG. 14)
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.
The valves must be fitted perpendicular with the rear of the
appliance, in order to avoid obstruction and ensure that the
filling loop attaches correctly.
Fig. 14
Gas
cock
Hot water
outlet
C/H flow
valve
connection pipe
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.
C/H return
valve
Cold water
inlet
Filling loop
Safety valve
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 COLD WATER INLET
The appliance is supplied with a 15mm combined stopcock and
filling valve, connect a 15mm pipe to the inlet of the stopcock
and tighten both nuts.
4.3.4 HOT WATER OUTLET
The appliance is supplied with a 15mm outlet connection, connect
a 15mm pipe to the outlet connection and tighten both nuts.
4.3.5 SAFETY VALVE
Connect the safety valve connection pipe to the safety valve
outlet and tighten. The discharge pipe must have a continuous fall
away from the appliance to outside and allow any water to drain
away thereby eliminating the possibility of freezing. The discharge
pipe must terminate in a position where any water - possibly
boiling - discharges safely without causing damage or injury, but
is still visible.
safety
valve
siphon
drain
4.3.6 CONDENSE PIPE
This appliance will - under normal operating conditions - produce
condensate fluid that will require to be disposed of via the dwell-
ing's waste water drainage system.
Vokera strongly recommends that the condensate pipe is con-
nected to the internal waste water pipework in accordance with
BS6798. BS6798 provides comprehensive instruction and advice
on all permissible condensate 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 INSTRUCTION FOR CONDENSATION
EXHAUST CONNECTION
This product is designed to prevent the escape of gaseous
products of combustion through the condensation drain pipe with
which it is equipped, this is obtained by using a special siphon
placed inside the appliance.
b
All components of the product condensation drain system must
be properly maintained in accordance with the manufacturer
instructions and cannot be modified in any way.
The condensation exhaust system downstream of the appliance
must comply with the relevant legislation and standards.
system
drain tap
Fig. 15
19