OPERATION
16
TECHNICAL DOCUMENTATION
OPERATING STATUS
To alter the operating mode or requested set point, press the button briefly and the setting will cycle to the
next option. Once you have achieved the required setting the unit will automatically adopt the new setting
shown on the display.
[1]
To achieve the requested set point the primary temperature supplied to the unit
MUST
be at least 5°C
above the set point measured at the primary temperature sensor TT4.
MAINTENANCE
Due to the high quality material used in the manufacture of this product and the simple construction the
Rapide Extreme needs no maintenance and enables an exceptionally long guarantee period.
Included in the unit is a service valve on the loading pipe from the base of the cylinder to the plate heat
exchanger, this may only be used when the unit is no longer active.
Do not close the service valve whilst the
unit is operating.
Inspection and cleaning inside the cylinder.
It is possible to clean out the cylinder using fresh mains cold water if so desired. To carry out this operation,
isolate and disconnect all water supplies and ensure all electrical supplies are isolated. Run a drain hose from
the drain valve to an operating drain, then connect a controlled mains cold water supply to the unit. Drain
the unit fully and then slowly supply water to the unit at the rate of drainage. Carry on at this rate until the
water running from the bottom of the unit runs clear; then carry out two full fills and drains.
▲
FIGURE 12.
OPERATIONS STATUS
DESCRIPTION
The unit is off and will not attempt to load
The unit is loading the cylinder to the requested set point
The unit has achieved the requested set point
Unit requested set point is set to 60°C
[1]
Unit requested set point is set to 65°C
[1]
Unit requested set point is set to 70°C
[1]
The unit is loading the cylinder to the anti-legionella set point
The unit has achieved the anti-legionella set point
OPERATING STATUS
oF
nL
nR
n1
n2
n3
hL
hR
RECOMMENDED PERIODIC INSPECTION
MAXIMUM RECOMMENED
DHW TEMP (°C)
WATER HARDNESS
(°dH)
MAXIMUM RECOMMENDED
PRIMARY TEMP (°C)
RECOMMENDED INTERVAL
FOR CLEANING (MONTHS)
4 - 6
6 - 8
8 - 12
>12
75
70
65
60
90
85
85
70
120
91
72
12
Depending on the water hardness the interval for periodic cleaning will change as below, and the maximum
recommended water temperatures will also alter as below.
