Operation Manual

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NOTE: When the machine is plumbed, and the water line is pressurized (on), the brew pressure
gauge will read the line pressure or higher. Very high readings will sometimes occur when the
machine is on and idling (not used), and that is normal. The only time that this gauge shows useful
information is generally when you are extracting espresso.
NOTE: If the pressure on the line is excessive it has the potential to cause leaks and inconsistent per-
formance. In the case of high pressure or irregular pressure in the supply line, a pressure regulator
is recommended to be placed inline with the supply source.
CAUTION: Check all connections for leaks, and be sure to check under the machine for leaks as
well. Damage caused by water leaks is not covered by the warranty.
CAUTION: If the plumbed water supply has to be shut off for any reason, it is advised to set the
power switch to “Position 0” and unplug the machine’s power cord from the outlet. If the machine
is powered on without a water supply it is possible to damage the pump and other parts of the ma-
chine. Damage from insufficient water supply is not covered by the warranty.
13 At this point, lift the brew lever and check that water flows at a regular rate through the group.
CAUTION: When the machine is plumbed, if the lever is lifted and you are not in attendance, water
can overflow the drip tray and cause property damage. The catch bottle (if so used) can overflow
as well. Do not leave the DD unattended with the brew lever in the up position.
Powering Up The DD
Do a double check:
• Place the power switch in “Position 0”
• Verify that both the steam valve and hot water valve are in the closed position. Do not tighten them until the
handles stop. The seals inside are quite soft and the valves do not have to be fully tightened to seal.
CAUTION: Repeatedly tightening the valves fully will shorten the life of the internal seals.
• Be sure that the water source is properly set up, and that the lever beneath the machine is turned in the proper
direction. Looking under the machine from the front you should see the lever pointing to your LEFT for
plumbed.
• Verify that the drip tray is in place, and that the drain line for the drip tray has been properly located if you
chose that option. If you are not using that option, be sure the brass plug is properly installed in the drip
tray.
• Lift the brew lever and wait until a good flow of water issues froth from the group and into the drip tray. Once
it is shown that there is water flowing, fully lower the brew lever.
CAUTION: Be sure to use a grounded outlet and plug the machine into a surge suppressor with
a protection level of at least 1040 Joules. Damage to the machine caused by power surges is not
covered by the warranty.
WARNING: For your personal protection the machine must be on a circuit protected by a GFCI
(ground fault circuit interrupter).
14 Plug the machine in
15 Turn the switch to “Position I.” You should notice that the PID display on the front panel shows a startup
sequence and then will display the current temperature of the water in the brew boiler. The pump may run to
automatically fill the steam boiler with water. Once the steam boiler is filled to the level determined by the
water level sensor, the autofill electronics should turn the pump off.