Supplied By www.heating spares.co Tel. 0161 620 6677
29
Linea Plus AG
8.21.8
Diverter Valve
8.21.9
Gain general access as 8.4.
8.21.10
Release motorised valve by removing retain-
ing clip.
8.21.11
Remove electrical plug in connector.
8.21.12
Reassemble in reverse order.
8.21.13
Printed Circuit Board
Part No. 05022.
8.21.14
Gain general access as 8.4.
8.21.15
Remove printed circuit board cover by releas-
ing 5 securing screws.
8.21.16
Pull out multi plug connectors,one earth lead
and one electrode lead from the printed cir-
cuit board.
8.21.17
Remove 2 screws securing circuit board to
front panel and remove board.
8.21.18
Reassemble in reverse order ensuring cor-
rect location of electrical connections.
(See fig. 39&40 for electrical connections).
NOTE: it will also be necessary to check/
adjust the c/h gas pressure as 8.23.
8.21.19
Display Printed Circuit Board
8.21.20
Remove printed circuit board as 8.21.13 to
8.21.18.
8.21.21
Remove three control knobs from front con-
trol panel.
8.21.22
Remove the two screws securing the circuit
board to the front panel.
8.21.23
Pull out two multi-plug connectors.
8.21.24
Replace in reverse order.
8.21.25
Safety Thermostat
Part No 8367 Refer to fig. 35.
8.21.26
Gain general access as 8.4.
8.21.27
Remove room sealed chamber front cover as
8.5 and R/H side panel (fig. 28a&b).
8.21.28
Pull off the two electrical connections on the
back of the thermostat.
8.21.29
Release stat from flow pipe by unscrewing 2
retaining screws.
8.21.30
Reassemble in reverse order ensuring cor-
rect location of electrical connections.
(See fig. 39&40 for electrical connections).
8.21.31
Thermistor Sensors
Part No. 8484 Refer to fig.35.
8.21.32
Gain general access as 8.4.
8.21.33
Remove room sealed chamber front cover as
8.5. Remove R/H side panel as fig.28a&b.
8.21.33a PRIMARY
Close heating flow and return valves (fig. 6)
by turning 1/4 turn until indicating lines are
horizontal. Pull lever on head of safety valve
to drain primary circuit to boiler.
8.21.33b DOMESTIC HOT WATER
Close cold water inlet stopcock. See fig.6 and
6.3.2.4.
Open lowest draw-off or drain tap on hot water
system.
8.21.34
Remove ignition control box as 8.12.
8.21.35
Pull off electrical plug connection from ther-
mistor.
8.21.36
Unscrew thermistor from pocket.
8.21.37
Reassemble in reverse order.
8.22
Pressure Gauge
Part No 1857.
8.22.1
Gain general access as 8.4.
8.22.2
Close heating flow and return valves (fig.6) by
turning 1/4 turn until indicating lines are hori-
zontal. Pull lever on head of safety valve to
drain primary circuit to boiler.
8.22.3
Trace capillary from back of pressure gauge to
connecting point on brass manifold.
8.22.4
Unscrew the retaining screw beside the capil-
lary tube entry to the manifold.
8.22.5
Pull out capillary tube from manifold.
8.22.6
Squeeze plastic locking lugs behind fascia
and press gauge from aperture.
8.22.7
Reassemble in reverse order following origi-
nal route for capillary tubes and ensuring lock-
ing lugs are located in the grooves.
Flow Pipe
Safety Thermostat
Fig. 35
Primary
Thermistor