Space-Ray Ultra 14, Инструкция по установке, обслуживанию и эксплуатации, Страница: 17 / 22

Page 1 5 of 20
6. SERVICING
It is essential that at least once a year, preferably before the heating season, the appliance is serviced by a qualified
person. In exceptionally dirty conditions, such as may occur in a foundry, more frequent servicing may be desirable.
IMPORTANT:
1. Do not rest anything, especially ladders, against the appliance.
2. Gas and electrical supplies must be isolated before commencing servicing work or
replacement of components.
3. Unless instructed to the contrary, re-assemble components in reverse order.
4. Check all joints for gas soundness after carrying out any servicing of the appliance.
5. On completion of a service/fault finding task which has required the breaking and re-making of electrical
connections, the following checks, using a multimeter must be made.
5.1 Earth continuity check.
5.2 Polarity check.
5.3 Resistance to earth check.
6.1 Electrode Assembly
6.1.1 Disconnect the black HT lead from the ignition electrode, by gently pulling the plastic shroud from the Raja
connector of the electrode.
6.1.2 Disconnect the grey flame sensor lead from the flame sensor rod by gently pulling the connector, using pliers.
6.1.3 Unscrew the two M5 nuts securing the electrode mounting plate to the appliance side panel and withdraw the
assembly.
IMPORTANT: DO NOT ATTEMPT TO REMOVE THE TWO M5 SETSCREWS FROM THE APPLIANCE SIDE
PANEL. THESE SCREWS SUPPORT THE PLENUM BOX ASSEMBLY ALSO.
6.1.4 Remove any foreign matter from the ignition electrode and earth rod, check the condition of the ceramic insulator
and check that the spark gap is 3.5mm. If the electrode is badly oxidised or the ceramic insulator is cracked,
replace the electrode assembly. (see section 7.1).
6.1.5 Remove any foreign matter from the flame sensor rod and check the condition of the ceramic insulator. If the rod is
badly oxidised or the ceramic insulator cracked, replace the electrode assembly (see section 7.1).
6.2 Injector
6.2.1 Unscrew the injector from the injector holder (attached to the venturi) and remove. Inspect and clean as necessary
with a soft bristle brush.
DO NOT DAMAGE THE INJECTOR ORIFICE BY USE OF SOLID OBJECTS
6.3 Electrical Wiring
6.3.1 Inspect the wiring inside the junction box. (attached to the gas control valve) To open the junction box, first slacken
the gland nut securing the electrical cable for the Honeywell ignition control. (the Ultra HI/LO series of appliances
has a second gland nut, securing the electrical cable for the HI/LO solenoid actuator). Secondly, unscrew the 4
screws securing the cover to the junction box. Carefully lift away the cover. Replace any damaged wiring as
necessary.
6.3.2 Unscrew the fastener securing the Honeywell ignition control to the Honeywell gas control valve and remove the
connection cover. Check that the electrical connections are sound and the wiring undamaged. Replace any
damaged wiring as necessary.
6.4 Reflector
6.4.1 The reflective surfaces of the two adjustable reflector panels should be cleaned with a soft cloth and detergent in
water. A mild non-abrasive metal polish may be used where extra discolouration has occurred.
6.5 Emitter Assembly
6.5.1 Ignite the appliance and observe the colour of the emitter surface. If there are pronounced dark areas on the
surface, it probably indicates an accumulation of dirt on the inside surface of the ceramic plaque.