Fondital KR 55, Installation & Use Manual

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Parameter Limit value
Default values for TSP0 = 4 KR
55
Default values for TSP0 = 5 KR 85
TSP0
Boiler model and table of default values
4 - 5 4 5
TSP1
Fan speed at maximum burner power 120 ÷ 250 Hz (3600 ÷ 7500 rpm) 201 Hz (6030 rpm) 200 Hz (6000 rpm)
TSP2
Fan speed at minimum burner power 30 ÷ 120 Hz (900 ÷ 3600 rpm) 58 Hz (1740 rpm) 54 Hz (1620 rpm)
TSP3
Fan speed at burner ignition power 30 ÷ 160 Hz (900 ÷ 4800 rpm) 90 Hz (2700 rpm) 105 Hz (3150 rpm)
TSP4
Upper limit of maximum heat output set on trim-
mer P4 10 ÷ 100 % 100% 100%
Table 9 – Limit values for TSP parameters and default values for each boiler type (TSP0)
Parameter Minimum limit Maximum limit
TSP5
Trimmer position P6 ( in Fig. 19)
0
(thermoregulation curve = 0.0)
254
(thermoregulation curve = 3.0)
TSP6
Fictitious temperature set on knob 4 (only with
external probe present)
15°C 35°C
Table 10 - Displayable TSP parameters (not modifiable from remote control)
3.2.14. Connecting to the external probe (optional) and sliding temperature operation
The boiler can be connected to an external temperature probe for sliding temperature operation (optional, supplied by the manufacturer).
Only original external temperature probes supplied by the manufacturer must be used.
If non-original external temperature probes are used, correct operation of the boiler cannot be guaranteed.
The external temperature probe must be connected by means of a double insulated wire, minimum cross-section 0.35 sq.mm.
The probe must be connected to terminal M8 on the boiler’s printed circuit board (Fig. 21).
The temperature probe cables must NOT be sheathed together with power cables.
The temperature probe must be installed on an outside wall facing north or north-east, in a position protected from atmospheric agents.
Do not install near a window, ventilation openings or sources of heat.
The external temperature probe automatically modifies the CH flow temperature in relation to:
• the outdoor temperature measured
• the thermoregulation curve selected
• the fictitious ambient temperature selected.
The thermoregulation curve is selected via the thermoregulation trimmer (Fig. 19).
During regulation, the thermoregulation symbol flashes and the temperature setting is displayed on
the LCD. This value can also be read as parameter TSP5 on the remote control (if the is one).
Relation between the value of parameter TSP5 and the thermoregulation curve coefficient is equal to:
Relation between value read and thermoregulation curve coefficients:
Coefficient = TSP5 value read / 84.67
The remote control must not be connected to a 230 V ~ 50 Hz power supply.
For instructions on how to program the remote control, refer to the booklet provided with it.
The remote control can be used to read and enter a series of parameters, called TSPs, which must be done by a qualified technician
(Tables 9 and 10).
Parameter TSP0 sets the default values in the table and reloads all the original data, deleting any subsequent modifications.
If a parameter is wrong, the value is restored, taking it from the table of default values. If the value you are trying to enter is outside the
set limits, the new value is rejected and the existing one is retained.