INSTALLATION
Harrier GT Range
- Installation
13
8.1 DELUXE (OPTION) - CONTROL PANEL (continued)
3. Auto/Manual switch:
- AUTO: automatic position, the position to be used in
normal operation for boilers fitted with an SV-matic
weather compensator or with an SVR module. The
temperature of the boiler is adjusted by the control.
- Manual M : manual position, the position to be used for
boilers not fitted with an SV-matic weather compensator
or with an SVR module. The temperature of the boiler is
adjusted by the first and second stage boiler thermostats
5. This position can be used to test the burner on an
installation fitted with an SV-matic weather compensator.
4. Location for a hourrun meter if required for first or
second stage
5. Boiler thermostat for first or second stage
: graduated
from 30˚C to 90˚C.
However, a pre-set integral temperature stop limits the
temperature to 80˚C. This stop can be changed if
necessary. To alter it, remove the thermostat button by
pulling below and with pliers relocate the stop in the hole
according to the temperature limit required.
Important: boiler thermostats must always be at
maximum stop in the case where an SV-matic weather
compensator is fitted or in cascade installations under
the control of a boiler fitted with a «DIEMATIC-m»
electronic control panel.
6. Indicator lamps
for 1st and 2nd stage: these only light if
the thermostat concerned or the control are calling for
heat and the safety contact is closed.
7. Boiler thermometer.
8. Location for possible smoke thermometer.
9. Safety thermostat
with manual reset (cut temperature:
100˚C).
10. Fuse 5 AT.
11. Location for SV-matic weather compensator or the
possible SVR option (here SV-matic 232 DB shown in
place).
For boilers connected to a domestic hot water calorifier.
12. Control rheostat
for the temperature for the DHW sited
on the SVR box or the type B SV-matic weather
compensator (graduated from 20˚ to 80˚C - adjustment
advised: 50˚C).
8.1.2 Operating instructions of the Deluxe control panel
- Regulation of the boiler:
the boiler is controlled either by the boiler thermostats or
by the SV-matic weather compensator (in option).
For boilers fitted with an SV-matic weather compensator the
temperature of the boiler is controlled by the action of the
regulator on the burner according to the external
temperature. The boiler thermostats will be then set to maxi.
Operating safety is ensured by the safety thermostat with
manual reset.
- Heating system regulation:
the heating system can be controlled in various ways
(manual or motorised mixer valves, thermostatic taps, etc.)
It is up to the installer to explain the operation of the
heating controls to the customer.
For boilers fitted with an SV-matic weather compensator
acting on a valve, heating temperature is adjusted by the
regulator on a motorised mixer valve according to the outside
temperature.
Regulation of domestic hot water:
• with SVR option or SV-matic type B:
the temperature of the domestic hot water is adjusted by a
rheostat 12 located on the SVR or SV-matic weather
compensator. When the domestic hot water is heated, the
burner and load pump start while the heating accelerator
stops; the temperature of the boiler is then regulated by
the limit thermostat incorporated in the SV-matic weather
compensator or mounted on the SVR option (this
thermostat is pre-set from factory at 80˚C).
Once the hot water demand is satisfied, the burner stops and
the load pump continues to operate for 4 minutes after
(timing adjustable from 30 seconds to 15 minutes). This
enables the residual calories within the body of the heater to
be used, and to complete the heating of the calorifier particu-
larly in summer.
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