Hi-Flo Range; Servicing; Gas Control Valve Standard Range; Gas Control Valve Hi-Flo Range - andrews 32/143 Installation Manual, Operation And Service Manual

SERVICING

8. Re-assemble in reverse order but note:
i) The flueways and combustion chamber must be cleaned first.
ii) Use an approved jointing compound when re-fitting burner injectors.
9. Light heater in accordance with lighting instructions. All gas joints must be checked
using leak detection fluid. Turn off and seal any leakages.
DO NOT EXAMINE WITH A NAKED FLAME.
10. Re-light the heater and set the thermostat to the user's requirements.
The gas control valve should be checked and serviced by a qualified person, fully
conversant with this item.
The gas control valve should be cleaned and checked. Remove any debris from the valve
inlet filter using a soft brush or by blowing with low pressure air.
After servicing, check:-
1. Soundness of any gas joints broken or disturbed and seal any leaks.
2. Burner pressure/gas rate at maximum thermostat setting.
3. Operation of heater is correct. Reset controls to user's requirements.
The flue ways should be checked and cleaned annually.
1. Remove burner as described in Burner Assembly, Standard Range.
2. Remove split flue clip from flue and lift off draught diverter.
3. Inspect and clean secondary flue installation as necessary.
4. Lift out baffle from inside central flue way. (not Model 84/87)
5. Clean flue way with a brush and remove deposits from underside of storage vessel and
from flue baffle.
6. Re-assemble in reverse order. Be sure to engage rear section of main burner supply
pipe in it's location bracket on base pan of heater. DO NOT OVERTIGHTEN THE
THERMOCOUPLE CONNECTION. SCREW IN FINGER TIGHT THEN TIGHTEN A
FURTHER 1/4 TURN USING A SPANNER.
7. Re-light heater and carry out relevant commissioning procedures as detailed
in Section 4.
The flue ways should be checked and cleaned annually.
1. Remove burner as described in Burner Assembly, Hi-Flo Range.
2. Remove the split clamp and raise the flue system to clear the draught diverter socket.
3. Remove securing screws and remove top cover complete with draught diverter and
adaptor ring.
4. Remove top insulation and keep safe.
5. Remove flue collector cover.
6. Remove flue baffles and brush flue tube using 75mm diameter brush with minimum
length of 1.4m.
7. Remove deposits from tank top and burner compartment. Replace baffles.
8. Re-assemble collector cover, insulation, top cover, flue system and burner assembly.
9. Carry out relevant commissioning procedures as detailed in Section 4.
NOTE! For models 65/173 and 81/264, where top inlet/outlet connections are used,
both hot and cold connections must be disconnected before removing the top cover.
SECTION 6
GAS CONTROL
VALVE
STANDARD
RANGE
Fig 27.
GAS CONTROL
VALVE

HI-FLO RANGE

FLUE WAYS

STANDARD
RANGE
FLUE WAYS
HI-FLO RANGE
37