Heatline capriz 25, Инструкция по установке, обслуживанию и эксплуатации

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15.3 Setting the boiler's integral pump: The boiler's
integral pump is factory set to operate in both central
heating and D.H.W. mode. Where an external pump is
incorporated into the system design the integral pump
may be disconnected in central heating mode by fitting
dip switch '5' into the ON position.
15.4 Setting the 45 seconds delay: The boiler is factory
set to exclude the delay of 45 seconds before re-
ignition between the closing of a hot water tap and CH
start-up. This delay can be set to 45 seconds by setting
dip switch ‘3’ (
Figure 22 ) into the OFF position.
15.5 255 seconds delay setting: The boiler is capable of
up to 255 seconds ignition delay (anti cycling time)
before re-ignition following burner shut down on the
primary hydraulic water reaching its set temperature.
This delay can be increased up to a maximum of 255
seconds by turning potentiometer P5 (
Figure 22 )
clockwise.
15.6 Pump working mode setting: The boiler is factory
set to operate the pump for a period of 45sec before
and after a heating cycle. This delay can be cancelled
by setting dipswitch ‘2’ (
Figure 22 ) to the ON position.
However, this is not recommended as the boiler over-
heat thermostat may trip out, causing lock-out of the
boiler.
15.7 Setting the Heating output: The B24 boiler is
factory set to give mid range central heating output. The
maximum and minimum heat output for heating and
domestic hot water may be adjusted, if required, using
potentiometers P2 (
Figure 22 ).
15.8 Gas valve ignition capacity. The graduated opening
of the gas valve for ignition rate is governed by
potentiometer P4 control, which is factory set. To assist
in setting the boiler's modulating gas rate parameters
the ignition rate of the valve can be forced from
minimum to maximum rate by setting the potentiometer
clockwise.
15.10
The boilers integral pump is factory set to
speed 2 setting to give a 1000 l/hr flow on a nominal
over 4 m head. The pump may be adjusted to a lower
speed to match the designed central heating system
requirements. (
Figure 23)
16.1 A hydraulically operated primary pressure sensor
monitors water pressure or water shortage in the
primary hydraulic circuit and will switch the boiler off if
the pressure is below 0.3bar. The boiler will not operate
until the circuit has been re-pressurised.
16.2 The temperature of the water flowing from the
primary heat exchanger is monitored by an overheat
thermostat located on the outlet pipe. If the water
temperature gets too hot the switch opens, cutting off
the electrical supply to the gas valve and causing the
boiler to ‘Lock-out’. Once activated the boiler has to be
manually re-set by switching the control knob off (for 15
seconds) and on again.
16.3 An air pressure switch situated in the boiler's fan
compartment monitors the boiler's flue operation. If a
partial obstruction within the flue occurs the fan will
continue operating but the boiler's burner will shut
down until the blockage is cleared.
16.4 The boiler's control unit has in-built frost protection
device that fires the boiler's burner when the
temperature of primary hydraulic water falls below 6°C.
The device works irrespective of any room thermostat
16. Safety Devices
Important
Gas Type Jumper, Dip Switch 1, Dip Switch 4 and
Dip Switch 5 are factory set and must not be adjusted.
Figure 21
Figure 22
Figure 23
7
6
5
4
3
2
1
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Q
H (m)
QH Chart
7 8 6
5 4 3 2
1
N
O
4 OFF
POTENTIOMETERS
DIP SWITCHES POTENTIOMETERS
P7
P5
P2
P4
8 DIP SWITCHES IN
THE OFF POSITION
1 2 3 4 5 6 7 8
ON
DIP
1 2 3 4 5 6 7 8
ON DIP
1 2 3 4 5 6 7 8
ON DIP
DIP SWITCH
OFF POSITION
DIP SWITCH
ON POSITION
Page 19
setting and will protect the complete heating system.
On reaching a water temperature of 15°C the boiler
reverts back to normal operation.
16.5 If there is a fault on DHW sensor, system
continues operation by controlling DHW outlet
temperature by flow sensor and CH sensor, which
limits the temperature up to 65ºC during DHW
operation. If such failure occurs and displays on LED
screen, please contact service department.
15.9 Dip switch 8 is factory set to OFF for 25 kW and set
to ON for 28 kW.
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