VOKERA Linea Installation & Servicing Instructions Manual - page 23
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6.17 FLOW RESTRICTOR (fig. 32)
Carry out the component removal procedure as described in 6.4.
Disconnect the cold water inlet pipe at the DHW flow meter
(A)
. Using
a small screwdriver, gently ease the flow restrictor
(B)
from its
seating. Replace in the reverse order. Ensure all seals are in good
condition, taking care to ensure they are replaced correctly.
6.18 DHW FLOW METER (fig. 32)
Carry out component removal procedure as described in 6.4.
Remove the locking pin
(C)
. Disconnect and remove the cold water
inlet pipe from the DHW flow meter & DHW heat exchanger.
Disconnect the wiring to the DHW flow meter. Lacken and unscrew
the inlet connection
(
cold water inlet stopcock
, fig. 14)
. Unscrew the
nut
(D)
. Lift the DHW flow meter housing from its seating. If necessary
remove the locking pin
(E)
from the DHW flow meter, taking care not
to lose the float contained within the housing.
It is possible to clean internally the flow meter removing the locking
pin.
Replace in the reverse order ensuring that the housing is firmly
inserted onto its seating. Ensure all seals are in good condition,
taking care to ensure they are replaced correctly.
6.19 DHW HEAT EXCHANGER (fig. 23)
Carry out component removal procedure as described in 6.4. Locate
and remove the screws
(G)
that secure the heat exchanger to the
DHW manifolds. Carefully remove the heat exchanger from its
location taking care not to spill any residual water. Replace in the
reverse order ensuring that the heat exchanger ‘O’ ring seals are
correctly inserted into the DHW manifolds. Ensure all seals are in
good condition, taking care to ensure they are replaced correctly.
6.20 VALVE ACTUATOR (fig. 33)
Carry out component removal procedure as described in 6.4.
Remove the locking pin
(F)
that secures the actuator
(G)
to the
heating manifold. Disconnect the electrical plug from the actuator.
Replace in the reverse order.
6.21 DIVERTOR VALVE ASSEMBLY (fig. 33)
Carry out component removal procedure as described in 6.4.
Remove the valve actuator as described in 6.20. Locate and re-
move the locking pin
(A)
that secures the valve housing cover to
the hydraulic manifold. Gently prise the valve assembly from the
manifold. Replace in the reverse order ensuring that the seating
assembly is inserted properly. Ensure all seals are in good condi-
tion, taking care to ensure they are replaced correctly
.
6.22 DHW THERMISTOR (fig. 34)
Carry out component removal procedure as described in 6.4.
Locate and remove the thermistor locking pin
(H)
. Gently ease the
thermistor assembly
(I)
from the hydraulic manifold. Replace in the
reverse order.
6.23 AUTOMATIC BY-PASS & DHW NON-RETURN VALVE
(fig. 34)
Carry out component removal procedure as described in 6.4.
Remove the locking pin
(A)
that secures the cover
(B)
to the hydraulic
manifold. Using a hooked piece of wire, carefully withdraw the by-pass
cartridge
(C)
and/or DHW non-return cartridge
(D)
. Ensure all seals are
in good condition, taking care to ensure they are replaced correctly.
Replace in the reverse order ensuring the cartridge is facing the correct
way.
6.24 EXPANSION VESSEL (fig. 1)
Should the removal and replacement of the expansion vessel be
deemed impractical, an external expansion vessel may be fitted to
the return pipe as close to the appliance as possible.
6.24.1 EXPANSION VESSEL REMOVAL (with sufficient clearance
above, fig. 22 & 35)
Carry out component removal procedure as described in 6.4.
Disconnect the flue from the appliance.
Disconnect the expansion vessel from the flexibleexpansion pipe.
Disconnect the flexible expansion pipe from the vessel. Unscrew
the nut that secures the vessel to the frame
(I, fig. 22)
. Locate and
remove the 6 screws
(A, fig. 35)
that secure the vessel top holding
plate
(B, fig. 35)
, remove the plate.
The expansion vessel can now be removed.
Replace in the reverse order. Ensure all seals are in good condition,
taking care to ensure they are replaced correctly.
6.25 CONDENSE TRAP REMOVAL (fig. 36)
Carry out component removal procedure as described in 6.4.
Disconnect the 2 upper rubbers condense pipe
(A)
. Remove the pin
(B)
tah secures the trap to the air box plate. Disconnect the lower
Fig. 31
A
B
Fig. 32
Fig. 33
Fig. 34
C
A
B
E
D
A
D
C
B
F
G
A
I
H