RATIO BETWEEN BURNER
PRESSURE AND OUTPUT
Fig. 52
THREE WAY VALVE
Fig. 53
Once the process of commissioning the boiler is
complete,
the commissioning engineer MUST
complete his section in the Benchmark log book.
6.13
CHECKING THE FLUE SYSTEM
6.13.1
The flue system should be visually checked
for soundness. Check all clamps and fixings
are secure and tight.
6.14
CHECKING THE HEATING THERMOSTAT
6.14.1
Allow the system to warm up and then turn
the C.H. thermostat to ensure the main
burner modulates from “high” to “low” and
“low” to “off” and vice versa (scale range
covers approx. 45
o
C 85
o
C).
6.15
TESTING AND REGULATING THE
DOMESTIC HOT WATER SYSTEM FLOW
6.15.1
Put the appliance in operation with the
(summer/winter) switch in winter position.
- Open a domestic hot water tap
(preferably the bath tap). Ensure cold
water inlet stopcock is open and the
D.H.W. thermostat 5 (Fig. 50) is set at
maximum.
-
If the burner does not light check that the
water flow rate is above the min.
required to operate the differential
pressure 2.8 Lts./min. (0.61 galsimin).
- The temperature of the water will
depend on the rate at which it flows. If,
due to high water pressure, the flow rate
is too high (and thus the temperature too
low for practical use) the flow rate may
be adjusted. It is better to set for the
lowest acceptable temperature preferably
at the bath tap since the user can gain
higher temperatures at other restricted
flow taps (Table 1).
- To adjust ‘the flow rate refer to (Fig. 53)
side view and locate the adjustment
screw (Fig. 53). Turn the screw clockwise
until the
required temperature is
reached.
N.B.: If the cold supply is subject to large
fluctuations or is above the permitted
max. water
p r e s s u r e , a
suitable
pressure/flow regulator should be fitted
in the cold water supply to the appliance.
- Turn the appliance mode selector switch
(Fig. 50) (1) to the summer position.
Slowly close the draw off tap to reduce
the flow rate to above the min. (approx.
2.8 litre/min - 0.61 gals/min.). Rotate the
D.H.W. control thermostat to ensure it
operates
at
its various setting.
- Close the draw-off tap still further. The
burner should stop when the rate falls
b e l o w a b o u t 2 . 8 l i t r e s l m i n ( 0 . 6 1
galslmin.).
28
Summary of Contents for RSF 82E
Page 39: ...Fig 93 Fig 91...
Page 42: ...SECTION 9 ELECTRICAL SYSTEM DIAGRAM Fig 94...
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Page 46: ...SECTlON IO EXPLODED PARTS DIAGRAM...
Page 49: ...NOTES...
Page 50: ...Chartists Way Morley Leeds LS27 9ET Telephone 0113 252 7007 Tfax 0113 238 0229...
