Radiant RK 25 /B, Instruction Manual

Page: 44 / 66

MAINTENANCE INSTRUCTIONS
40
PARAMETER P23 – MODULATING PUMP MINIMUM SPEED
( w/modulating pump and return temperature sensor
connected only)
This parameter is used to set the minimum modulating pump speed
during a heating mode request.
To enter the parameters menu, follow the previously described procedure
(
see paragraph 5.2 ‘Accessing the parameters menu’ - steps 1-4)
.
5.
Use ‘ ’ and ‘ ’ buttons (D.H.W temperature setting) to modify
the value of the parameter within the prescribed limits
(
displayed
in
percentage):
min = 50 %
max = 70 %
6. Press mode selection button ‘ ’ to confirm and to render the new
parameter operative .
7. To exit from the parameters menu, press simultaneously ‘ ’ and ‘ ’
buttons
.
PARAMETER
P24 – MODULATING PUMP MAXIMUM SPEED
(w/modulating pump and return temperature sensor connected
only)
This parameter is used to set the maximum modulating pump
speed during a heating mode request.
To enter the parameters menu, follow the previously described procedure
(
see paragraph 5.2 ‘Accessing the parameters menu’
- steps 1-4)
.
5. Use ‘ ’ and ‘ ’ buttons (D.H.W temperature setting) to modify
the value of the parameter within the prescribed limits
(
displayed
in
percentage):
min = 70 %
max = 100 %
6. Press mode selection button ‘ ’ to confirm and to render the new
parameter operative
.
7.
To exit from the parameters menu, press simultaneously ‘ ’ and ‘ ’
buttons
.
PARAMETER
P25 –
∆
T TIMING T° FLOW / T° RETURN
(w/modulating pump and return temperature sensor connected
only)
This parameter is used to set the timing response of the
modulating pump.
To enter the parameters menu, follow the previously described procedure
(
see paragraph 5.2 ‘Accessing the parameters menu’
- steps 1-4)
.
5.
Use ‘ ’ and ‘ ’ buttons (D.H.W temperature setting) to modify
the value of the parameter within the prescribed limits
(
displayed
in
seconds):
min = 20
max = 100
6. Press mode selection button ‘ ’ to confirm and to render the new
parameter operative
.
7.
To exit from the parameters menu, press simultaneously ‘ ’ and ‘ ’
buttons
.
P23
P23
P24
P24
P25
P25
60
75
100
80
30
20