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8.
Draining the Boiler system
It might be necessary from time to time to drain the boiler
system during servicing and descaling.
The HotFob key can be used to drain most of the water from
the tank, but to fully empty the tank, the drain valve (A12)
must be used.
The water in the boiler tank may be up to 98°C and
n
n
as such represents a scalding risk if handled without
due care. We recommend that the boiler is switched
off on the front panel before draining any stored
water. It will take approximately 8 hours (overnight)
for a full 98°C tank to naturally cool to a touch safe
temperature of 46°C. Do not open the drain valve
until the hot water is at atmospheric pressure.
Should you need to drain the boiler without
allowing it too naturally cool, then you must take
adequate care and use personal protective wear to
prevent accidental scalding from hot water, surfaces
and steam.
1.
Use the HotFob to drain hot water from the tank until
no more water can be dispensed.
2.
Ensure the boiler (A1) is turned off at the front control
panel and allowed to cool down (see "powering down"
for more details) (Fig. 8.1).
3.
Remove the slotted screw (A10) from the access plate
(A11) at the bottom of the boiler front panel, place it
somewhere safe so it does not get lost accidentally (Fig.
8.1).
4.
Place a washing up bowl or bucket on the floor below
the level of the drain. Note: a 5 litre vessel capable of
holding hot fluid safely is required.
5.
Connect the adaptor (A13) and drain hose (A14) to the
valve and hand tighten (Fig. 8.2).
6.
Turn lever (A12) to open valve and allow water to drain
into washing up bowl or bucket (Fig. 8.1).
7.
Once all the water has drained from the unit close the
drain valve (A12) (Fig. 8.1).
8.
Gently shake the drain hose (A14) and coil (Fig. 8.2).
9.
Place coiled drain hose (A14) (Fig. 8.2) into the
compartment and replace cover (A11) using the hand
screw (A10) (Fig. 8.1).
10. Safely and carefully dispose of the waste water.
Due to our policy of continual improvement, we reserve the right to change specifications without prior notice.
16
Fig. 8.1
Fig. 8.2
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