20
MAXIN 24e & 28e
6.12
Final Check for Operations
Turn mode selector switch to 0, disconnect
pressure gauge, re-tighten screw. Relight
boiler.
6.12.1
Re-check for gas soundness
6.12.2
Re examine heating and hot water systems
and cold water supply for water soundness.
6.12.3
Check the appearance of the gas flame to
assess adequacy of combustion air supply.
6.12.4
Re-check the flue system for soundness and
adequacy of supports.
6.13
Concluding Operations
6.13.1
If external/internal controls have been
disconnected and terminals 1 & 2 and 4 & 5
temporarily linked, remove the link and
reconnect the controls circuit. Check the
operation of the controls.
6.13.2
Hinge up the control fascia.
6.14
Refixing the boiler casing fig. 23
6.14.1
Offer up the front casing to the back frame in
a near vertical attitude and locate the hooks
on the casing over the hooks on the frame.
Slide the casing downwards to fully engage
the hooks and to align the bottom fixing
holes. Replace the four case retaining
screws. (fig. 23)
6.15
Supplementary Instructions for Fitting &
Removing Optional Time Clock and for
Wiring to External Controls.
Section 10 Appendices A and B at the rear
of this manual provides full instructions for
fitting and wiring the optional built-in time
switches and for wiring to external controls.
6.16
Complete details of the boiler, controls,
installation and commissioning in the log
book supplied with the boiler. This is an
important document which must be correctly
completed and handed to the user. Failure to
install and commission this appliance to the
manufacturers instructions may invalidate the
warranty.
6.11.4
If the burner does not light, check that the
water flow rate is above the minimum
required to operate the differential pressure
device 2.8 litres/min (0.61 gals/min).
6.11.5
The temperature of the water will depend on
the rate at which it flows.
If due to high water pressure the flow rate is
unacceptably high (and thus the temperature
to low for practical use) the flow rate should
be adjusted as follows. (see fig. 22a)
6.11.6
a. Adjust the flow using the stopcock until
the required temperature is reached.
b. Unscrew the screw (1) & remove the
knob (2).
c. Adjust the ring (3). anti-clockwise until it
reaches the stop.
d. Refit the knob aligning the register in the
knob with the one on the ring.
e. Replace the screw.
It is best to set for the lowest acceptable
temperature since the user can gain higher
temperatures by restricting flow at the tap.
N.B. If the cold supply is subject to large
fluctuations or is above the permitted maxi-
mum a suitable pressure/flow regulator
should be fitted in the cold water supply to
the appliance.
6.11.7
Turn the appliance mode selector switch
(17) to the position.
Slowly close the tap to reduce the rate of
draw to above the minimum approx. 2.8
litres/min. (0.61 gal/min.) Rotate the dhw
control knob to ensure the appliance modu-
lates at its various setting.
6.11.8
Close the draw-off tap still further. The
burner should stop when the rate falls below
approximately 2.8 litres/min. (0.61 gal/min.).
2
1
3
Fig. 23
Fig. 22a
Содержание Maxin 24e
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