18
Super Plus -
Installation and Servicing
Each module's individual electronic thermostat should be set with
reference to Table 4 and Fig.17 (which shows the boiler thermostat
scale). The module numbers are given in Figs. 8 to 12.
This method of adjustment will give 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
thermostats.
Peel off the red adhesive vinyl arrow from the data plate on the right
hand side of the boiler casing and reapply it to indicate the size of
the boiler.
The combustion data sheet included at the end of this Installation
book should be connected for each module and left attached to
these Instructions.
Once commissioning has been completed, all module covers must
be replaced.
Check also that the draught stabiliser is controlling the
draught between neutral and 0.2 mbar (0.08 in.w.g.). With
all modules firing, measure the CO and CO
2
, levels again
and refer to Table 3 for the maximum allowable CO content.
3. Pressure Switch
Switch off the electricity supply to the boiler. Pull out the
black push-on connection, from the pressure switch at the
right hand side of the controls box.
Switch on the electrical supply. The fan will run for 70
seconds and then for a further 35 seconds after a variable
delay (as previously described), but at the end of this time
the ignition sequence will not start.
Switch off the electrical supply and refit the push-on
connection from the pressure switch.
4. Detector Current
The pilot and main burner flame detector current may be
checked by breaking the in-line connector in the flame
detector lead and inserting a micro-ammeter. The pilot
current should be 3 - 4µ A and the main burner current 6 -
7µA
5. Overheat Cut-off Device
If the water flow rate through the boiler is adequate, the cut-
off devices should not operate when the load on the boiler
is GRADUALLY reduced from maximum to minimum.
The overheat cut-off device is reset by pushing in the
'OVERHEAT RESET' button.
Once commissioning has been completed, all module
electrical multipin plugs should be refitted.
ADJUSTMENT OF SEQUENCE CONTROL
Thermometers mounted in the flow and return pipes to the boiler
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
0
C to 12
0
C.
Table 3 - MAXIMUM ALLOWABLE CO CONTENT
Once commissioning has been completed then all module covers should be replaced
Note:
module numbers refer to the order
in which the modules are connected to the
wiring centres (Figs. 8 to 12)
Fig.17 Boiler thermostat knob
INST
ALLA
TION
INSTALLATION
Table 4 - THERMOSTAT SETTINGS
