25
Concord Super Series 4 -
Installation & Servicing
ADJUSTMENT OF SEQUENCE CONTROL
Thermometers mounted in the flow and return pipes will give a check on the thermostat settings and
will indicate whether the water flow rate is correct to give a temperature rise across the boiler of 10°C.
to 12°C.
Each modules individual electronic adjustable control thermostat (which is mounted on the right-hand
face of the front panel) should be set with reference to Table 6 and Frame 24, which shows the boiler
thermostat scale.
This method of adjustment will give approximate control of the flow temperature which will be adequate
for most applications. For more accurate control Ideal Boilers, can quote for a commissioning, which
can, if required, include the accurate calibration of the electronic adjustable thermostats.
Table 6
Mixed RETURN temperature settings for module electronic adjustable control thermostat for individual
boilers.
Boiler sizes kW
Individual Boiler
Thermostat Settings
50 V
1
100 V
1
4
150 V
1
3
5
150 VA
B
1
3
5
200 V
1
2.5
4
5.5
250 V
B
1
2.2
3.4
4.6
5.8
250 H
B
1
2.2
3.4
4.6
5.8
300 V
1
2
3
4
5
6
300 H
1
2
3
4
5
6
350 V Front
Rear
B
1
2.5
4
1
2.5
4
5.5
400 V Front
Rear
1
2.5
4
5.5
1
2.5
4
5.5
450 V Front
450 H Front
450 VH Rear
B
B
1
2.2
3.4
4.6
B
1
2.2
3.4
B
4.6
B
1
2.2
3.4
4.6
5.8
500 VH Front
Rear
B
1
2.2
3.4
4.6
5.8
B
1
2.2
3.4
4.6
5.8
550 VH Front
Rear
B
1
2
3
4
5
1
2
3
4
5
6
600 VH Front
Rear
1
2
3
4
5
6
1
2
3
4
5
6
Module No. refer
Frames 5, 6 & 7
6
5
4
3
2
1
B
- denotes blank
Note.
Due to the different starting characteristics built into individual wiring centres,
modules set at the same control position may not start or shut down at exactly the
same time.
Two or more boilers of the same size
may be considered as a ‘single’ boiler
with the corresponding modules or
each side switching virtually together.
Two boilers of a different size e.g.
200kW and 150kW may be treated as
a ‘single’ 350kW boiler.
Those arrangements should result in a
turn down ratio of up to 6/1 maximum,
which will suffice for most applications.
If a turn down ratio of more than 6/1
is required, on installations where the
total number of modules fitted to single
or multiple boilers exceeds six, Ideal
Boilers will be pleased to quote for
accurate calibration of the electronic
adjustable control thermostats. This
work can be carried out as part of
the commissioning procedure. The
maximum practical turn down ratio is
12/1.
REMOTE WARNING LIGHTS
Multi-module boilers only.
Remote warning lights supplied by
the installer indicating flame failure
lockout, burner on and overheat may
be wired to the wiring centre - refer to
Frame 12.
COMMISSIONING AND TESTING
Содержание Concord Super Series 4 100 V
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