1-26
19 - IE
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
1.23 CIRCULATION PUMP.
The boilers are supplied with 2 circulator pumps,
both equipped with speed regulator.
These settings are suitable for most systems.
•
Boiler circulator pump.
The boilers are
supplied with a variable speed circulator pump.
When the boiler operates in heating mode, the
pump speed is defined according to the “P57”
parameter setting in the configuration menu
(Parag. 3.9), in domestic hot water mode the
circulator pump always runs at maximum
speed.
During the heating stage the Auto and Fixed
operating modes are available.
•
Auto:
automatic pump speed.
In this mode one
can choose between the “Proportional head”
and “Constant ∆T” option.
-
Proportional head (∆T = 0):
the pump speed
varies according to the power emitted by the
burner, the greater the power the greater the
speed. Within the parameter one can also
adjust the pump operating range, by setting
the maximum speed (adjustable from 100 %
÷
30 %) and the minimum speed (adjustable
from 30% to the max. set speed).
-
Constant
∆T (∆T = 5 ÷ 25 K):
the pump
speed varies to maintain the ∆T constant
between the system flow and return according
to set value K. Within the parameter one can
also adjust the pump operating range, by
setting the maximum speed (adjustable
from 100 %
÷
30 %) and the minimum speed
(adjustable from 30% to the max. set speed).
•
Fixed (100 % ÷ 30 %):
in this mode the pump
operates at constant speed, the operating range
is defined between minimum (30 %) and
maximum (100 %).
Pump release.
If, after a prolonged period of
inactivity, the circulation pump is blocked,
unscrew the front cap and turn the motor shaft
using a screwdriver. Take great care during this
operation to avoid damage to the motor.
•
System circulator pump.
The system circulator
pump controls the room heating or cooling
requests downstream of the hydraulic manifold.
In fact, the pump is equipped with electronic
control that allows to set advanced functions.
For proper operation one must select the most
suitable type of operation for the system and
select a speed between 2 and 7.
- Constant head program (ΔP C) (4 fig.
1-26).
The circulator pump maintains the
pressure level (head) constant as the system
heat demand decreases (flow rate reduction).
With these settings, the circulator pump is
suitable for all floor systems where all the
circuits must be balanced for the same drop
in head. One can select the power level from a
minimum one to a maximum one by turning
the selector switch clockwise in the relative
power scale.
- Proportional head program (ΔP V) (3
fig. 1-26).
This allows the pressure level
(head) to be proportionally reduced as the
system heat demand decreases (flow rate
reduction). Thanks to this function, the
electric power consumption of the circulator
pump is reduced further: the energy (power)
used by the pump decreases according
to the pressure level and flow rate. With
this setting, the pump guarantees optimal
performance in most heating systems,
proving particularly suitable in single-pipe
and two-pipe installations. Any noise of the
water flow in the pipes, valves and radiators
is eliminated by reducing the head. Optimal
conditions for thermal comfort and acoustic
well-being. One can select the power level
from a minimum one to a maximum one by
turning the selector switch counterclockwise
on the relative power scale.
Adjustments.
Turn the selector and set it on
the desired curve to adjust the circulator pump.
Automatic vent function (1 fig. 1-26).
The
circulator pump is equipped with a function
that activates its operation for 10 minutes,
alternating the speed between minimum and
maximum, so that the air contained in the
circulator pump is expelled by the air vent
valve.
Diagnostics in real time:
a light ring (2
fig. 1-26) supplies, with different colours,
information relating to the circulator pump
operating status, see table below.
LED
Description
Diagnostics
Cause
Remedy
Green (on)
Normal functioning
Green
(fast flashing)
Automatic vent in operation The circulator pump vents for
10 minutes
Air in circulator pump
If the circulator pump requires
the automatic vent function
often, one must adjust the
operating mode properly
Red (on)
Green (flashing)
Abnormal situation.
Circulator pump working but
stationary
The circulator pump restarts
once the abnormal situation
has been solved
a) Voltage out of range
(160 ÷ 253V)
b) Circulator pump
temperature high
a) Check power supply
b) Check temperature of room
and of the water contained
in the system
Red (flashing)
Circulator pump blocked
The circulator pump cannot
restart automatically due to an
anomaly
Check the circulator pump
If the problem persists replace
the circulator pump
LED (off)
Circulator pump not working Electronics not powered
a) Circulator pump not
connected
b) LED damaged
c) Electronics damaged
a) Check the electrical
connections
b) Check that the circulator
pump is working
c) Replace the circulator
pump
Key:
1 - Automatic vent mode
operation
2 - Light ring to indicate the
operating status
3 - Proportional head
operation
4 - Constant head operation
5 - Operating mode selector
switch
Summary of Contents for MAGIS Victrix
Page 1: ...MAGIS Victrix IE Instruction and warning book 1 035518ENG ...
Page 2: ......
Page 42: ......
Page 43: ......