26
Manuale Uso MP NIWA - Code 10011873 - Edition 1 - 03/2008
Instructions for operation
English
ALARMS
This section describes the alarm conditions that
the mini-pool system may indicate to the user on
the display.
Pressure/fl ow gauge
The pressure/fl ow gauge controls the fl ow of water
through the heater.
Two alarm conditions may be generated:
High limit sensor
The function of the
HIGH LIMIT
sensor is to monitor
the temperature of the heater, and to switch it off
in the event of overheating.
Water level in mini-pool too low
The mini-pool monitors the level sensor to prevent
the user from starting the various programmes
and/or functions if there is insuffi
cient water in
the tub.
If an insuffi
cient level of water is detected for more
than 25 seconds, the various functions are disabled,
and the display shows “
H2O
”.
The alarm condition continues until it is reset.
N.B.:
The anti-freeze function is performed even if there
is no water in the tub.
FLC
FLO
Alarm condition
Display
code
The pressure gauge
indicates a water fl ow
when no fl ow is required
(e.g. if the circulation
pump is switched off )
The pressure gauge
indicates no water fl ow
when a fl ow is required
(e.g. if the circulation
pump is switched on)
Functions
blocked
Exit
condition
The heater is
switched off
The heater is
switched off
When the
correct
operating
condition is
restored
When the
correct
operating
condition is
restored
HOH
(shown
alternately
with the water
temperature)
Alarm condition
Display
Temperature
measured:
≥ 48°C (118°F)
Function
blocked
Exit condition
The heater is
switched off
The temperature
falls below 44°
Control system
reset
7
The function is disactivated if any one of the user
functions has been selected, and is re-activated 10
minutes after the last user-selected programme
terminates.
Protection against freezing (Smart Winter
Mode)
The Mini-pool features a special system designed to
prevent freezing of the water in the tubes during
extremely cold weather.
The pumps switch on at intervals for one minute.
The frequency of these periods of operation varies
according to the temperature of the water measured
by a sensor.
The table below lists the intervals between anti-
freeze cycles for the various water temperature
ranges.
When the anti-freeze cycle is in operation, the
display shows
ICE
.
Once started, this cycle cannot be interrupted.
When the cycle is in operation, all the pumps
switch on simultaneously at maximum speed for
one minute.
N.B.:
1) The
Stand-By
function does not interrupt the
anti-freeze function (see relative paragraph).
2) If it should prove necessary to carry out an anti-
freeze cycle while a user-selected proramme
is in operation, the cycle will be performed
15
minutes
after the end of the last user-selected
function.
3) The anti-freeze cycle takes priority over the
fi ltration cycle. Therefore, if the conditions for an
anti-freeze cycle should occur during a fi ltration
cycle, then fi ltration is interrupted.
4) The anti-freezing cycle will also interrupt the
rapid fi ltration cycle (
BOOST
), if this has been
selected.
120
60
30
15
Temperature (°C)
Interval (minutes)
12 < t ≤ 15
9 < t ≤ 12
6 < t ≤ 9
t ≤ 6
