Scope Of Supply; Assembly; Hydraulic Integration Of The Flow Meter - Dimplex DFM 1988 Installation And Operating Instruction

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3

Assembly

3.1 Hydraulic integration of the flow meter

NOTE
The sensors are only installed after the hydraulic integration has been
completed.
ATTENTION!
Please observe the flow direction of the plastic tube (VFS measuring
tube). The flow direction is indicated by an arrow on the outside of the
plastic pipe.
ATTENTION!
All components of the DFM 1988 must be installed in a dry and frost-free
location. Ensure that no condensation forms on the electronics module.
The VFS measuring tube must be mounted close to the cold
water inlet of the cylinder. The domestic hot water outlet sensor
R1" external thread
cold water inlet cylinder
Reducing sleeve
Fig. 3.3: Cold water inlet domestic hot water cylinder
EN-4
for the electric flange heater
in the domestic hot water cylinder
VFS-Sensor 5-100 mounted
with O-rings and mounting clip.
Ensure that the VFS sensor is installed
the right way round! (with cable outlet
upwards in the direction of flow - as
shown here. Moisten the O-rings for
installation with water or, for preference,
O-ring grease.
Screw connection ¾" – 1"
¾"
1" -
452114.66.95 · FD 9801
(R3.2) must be mounted close to the domestic hot water cylinder
and adequately insulated.
Please observe the direction of flow when installing the plastic
pipe (VFS measuring tube). The flow direction is indicated by an
arrow on the outside of the pipe.
The screw connections included in the scope of supply enable
simple integration into the domestic hot water circuit, and can be
used.
ATTENTION!
The electronics module must be mounted on a wall in the immediate
vicinity. The sensor lines are approx. 1.2 m long and must not be
extended.
Fig. 3.1:Integration diagram for activating the electric flange heat-
er in the domestic hot water cylinder
Fig. 3.2:Domestic hot water outlet with temperature sensor
O-rings (x 2, see image for installation,
surrounding groove must remain free) for
sensor sealing and mounting clip for affixing
sensor included in the scope of supply
VFS measuring tube 5-100
Screw connection ¾" – 1"
R1" external thread
domestic hot water outlet
on the domestic hot water cylinder
Calming section
approx. 200 mm
Transition sleeve ¾" -->
in accordance with the
connection pipe diameter
(16 / 18 or 22)
(not included in the scope of supply)
DFM 1988
M