Keston Thermomatic RSM20/FB, Инструкция по установке и обслуживанию, Страница: 20 / 46

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5.5.1 Hand the Users Instructions to the user and
explain how to operate the appliance and any addi-
tional controls.
5.5.2 Advise of the precautions necessary to prevent
damage to the appliance and system by frost
5.5.3 Advise that, for continued safe and efficient
operation of the appliance it is recommences that it be
serviced at less; annually.
5.5.4Either hand these instructions to the user or leave
them at the gas meter. 6. REPLACEMENT OF PARTS
6.1 GENERAL
6.1.1 Part numbers — see exploded diagram, fig. 6.1
6.1.2 Isolate the electricity supply and turn off the gas
supply at the service cock (item 31).
6.1.3 Always check for gas and water soundness of
joints broken during Servicing.
6.2 ACCESS
Certain items need to be removed for access:
6.Z1 Front panel
Remove two screws (fig. 3.10. B). lift and disengage.
6.2.2 Top panel
Remove four screws (fig. 3. JO. 8). and remove.
6.2.3Base panel with attached front door.
Remove four screws and remove panel (fig.3. JO. B)
6.2.4Side panels
After having removed the front, top and base panels.
remove the two screws securing the instrument panel
to the respective side panel. Remove the respective
side panel fixing screw Pull down to disengage (fig.3.
10. item 94).
6.2.5 Withdrawal of instrument panel
Open the front door.
Unscrew four screws until firs: section of thread is free.
Withdraw panel forwards (fig. 3.10. A).
6.3 DRAINING WATER CIRCUITRY OF
APPLIANCE
6.3.1 Isolate the circuit via the cocks (item 41 and 33
[2 off]).
6.3.2 Drain the central heating circuit via the safety
valve (item 27).
6.3.3 Drain the domestic hot water circuit via a hot tap.
6.3.4 Whenever the central heating circuit of the
appliance is drained, the pressure in the sealed
system must be restored upon completion of work.
6.3.5 If the DHW isolation cock is closed, it must later
be readjusted to give a flow of 10 litres/minute at any
tap.
6.4 REPLACEMENT
6.4.1 Replacement is always in reverse order to
dismantling unless otherwise stated.
6.4.2 Electrical connections must be remade in
accordance with the wiring diagram. Fig 3.11
6.5 FAN, ITEM 7
6.5.1 Refer to sections 6.1, 6.2.1, 6.2.2 and 6.4 above.