• CIRCULATION DELAY
- This is the frequency of circulation to ensure that water held in the pump and connecting pipes
remains hot (factory-set at 5 minutes). This would only need to be adjusted, if the first drink dispensed (following a period
of not being used) was considered not hot enough, in which case the “circulation delay” time can be reduced.
• CIRCULATION TIME
- This is the time (in seconds) that the pump runs for during a circulation cycle (factory set at 3
seconds).
• DEFAULT UC
- This loads a “standard” set of parameters for a UCD series boiler (factory-set). The “DEFAULT UC”
program generally does not need to be accessed. However, if unintentional changes are made to the menu options - this
would provide a quick way of re-loading standard under-counter boiler parameters. Also, if a new circuit board were fitted
to the boiler, then “DEFAULT UC” would be used to set-up the software parameters on the new PCB.
8.0 - ECO MODE / POWER SAVING
The UCD series water boilers are amongst the most advanced and energy-efficient available.
UCD7 and UCD47 - At the bottom of the display panel is the
ECO MODE
button (identified by a globe symbol). Pushing
this button activates
ECO MODE
. When pressed, the message
“ECO MODE ACTIVE”
will display. This reduces the
boiler operating capacity by approximately 50%. When the volume of water in the tank has fallen below half, the globe
symbol in the display will illuminate to show that the boiler is operating on half capacity. To revert to full capacity, simply
push the
ECO MODE
button again.
If the
ECO MODE
is always selected after busy periods have passed, a small energy saving can be achieved.
Standby Power Consumption
: The typical amount of energy used by the boiler when idling (not used) is: 0.10kW/hr.
Leave on overnight or switch off?
As a general rule of thumb... a 12 litre capacity water boiler such as the UCD12 which
is left idle for 10 hours or MORE, would be better switched off and back on again the following day. If left idle for LESS
than 10 hours, it would be more energy efficient to leave it switched on.
9.0 - SERVICE WARNINGS AND FAULT DIAGNOSIS
The UCD series boilers are fitted with an intelligent fault diagnosis system. There are two levels of diagnosis.
1 - Simple Warnings:
accompanied by the illumination of a red exclamation mark. Your boiler will continue to operate as
normal whilst displaying these warnings.
2 - Critical Faults:
accompanied by the illumination of a red spanner.
Simple Warnings (1):
The following messages may be seen. The display will alternate between the boiler status (e.g.
“BOILER READY”
) and
the warning message. To clear the message, switch the boiler off at the mains supply and switch the boiler back on. These
messages, which are not critical and should be dealt with when it is convenient, are as follows:
“CHECK WATER”
- The boiler has not sensed any drop in temperature after opening the cold water valve a number of
times. The most common causes is an interruption of the water supply. Check the stop valve and make sure there are no
kinks in the hose and no debris in the water inlet valve. This message can also indicate that your incoming water pressure
is low. Shortly after the water supply returns to normal, the message will cease.
“NO WATER”
- 6 Minutes after the boiler was switched on, the circuit has not sensed water on the bottom level sensor.
Check that there is a water supply to the boiler and make sure that there are no kinks in the hose and no debris in the
water inlet valve. Please note that in hard water areas this message can be caused by limescale (see message
“CLEAN
PROBES”
below). Once you have rectified the water supply or cleaned the bottom probe, the boiler must be switched off
at the mains and back on again to reset.
“CLEAN PROBES” (+1 or +2) - Your boiler is fitted with five level sensors. These sensors use a very small electric current
and a circuit is made by the water. In some areas hard water causes a build up of limescale deposits on the sensors this
acts as an insulator. When a sensor becomes insulated, the water level will switch to a different sensor and the
“CLEAN
PROBES”
message will display. This will be followed by a number 1 or 2. Number 1 indicates that the bottom and
possibly ECO sensor are coated in scale. 2 indicates that one or of the top three sensors is coated in scale.
To Clean the Probes:
First switch off power supply and disconnect water-tube and plug/lead from top of under-counter unit. Slide boiler forward
to gain access.
