5. START UP
Turn the water on at the stop valve and switch the power on at the plug. Press the
POWER ON button at the front of the machine. A red light next to the button will
illuminate and the machine will start to fill.
Note: The machine will not heat until the water has reached the low level probe.
When the low-level probe is reached the element is switched on this water is heated to the
pre-set temperature (93 –94.5°C). The machine takes in another small body of water,
while continuing to heat. This method of staggered filling (heat-fill cycle) ensures that the
temperature in the tank remains within 3 degrees of set temperature. This heat-fill cycle
continues until: a) the water level reaches the high level probe and
b) the water temperature reaches the pre-set temperature as above.
This may take up to 1 hour.
Note: When the level of water is at a safe height above the low level, the green
READY TO BREW light illuminates. The machine is not full at this level. A brew
can be selected, but no hot water is available. Unless a brew is selected, the full
quantity of hot water should be available within 25minutes of reaching this level.
6. OPERATION
The machine is ready to brew Coffee and 10 pints of Hot Water is available for
immediate draw-off when the machine is full and up to temperature.
The machine has one large water tank, with an urn recessed into it. When a brew is
selected, hot water is pumped from the tank up to the sprayhead and into the filter basket.
The coffee runs out of the filter basket into the urn. Since the water tank surrounds the
urn, the brewed coffee is kept at temperature.
The machine works on a heat fill cycle which means that the temperature in the tank does
not drop by more than 3 degrees. The machine will only allow small amounts of cold
water into the tank, while continuing to heat to ensure that the temperature does not drop
too low.
If more hot water is used than the machine can recover (0.48l/min), the amount of water
in the tank decreases. If the full quantity of Hot Water is drawn off, the machine will take
approximately 25min to recover back up to the high level probe.
Note: a brew can still be selected when no Hot Water is available out of the tap. This
is due to a buffer of hot water beneath the level of the ‘hot water stand pipe’ inside
the tank. This should preferably be a half brew rather than a full brew to ensure
shorter recovery times. Drawing off Hot Water while brewing Coffee should not
affect the quality of the brew.
When the level has dropped to a point where a brew cannot be completed, the ready to
brew light goes out and a brew cannot be selected. A 3rd level sensor probe, the ‘Brew
Level Probe’ controls this level. After a recovery period (up to 20min), the machine will
be ready to brew once again. Note: a longer recovery is required before any substantial
amount of Hot Water can be drawn off.
