14
Installation and Servicing
SECTION 1 - GENERAL
The boiler does not normally need a bypass but at least some radiators on the heating circuit, of load of at least 10% of the
minimum boiler output, must be provided with open manual radiator valves so that this minimum heating load is always available.
See note regarding thermostatic radiator valves on Page 10.
Note.
Systems incorporating zone valves which could completely cut off the flow through the system must also include a bypass.
BALANCING
1.20 WATER TREATMENT
1.
Set the programmer to ON.
Close the manual or thermostatic valves on all radiators,
leaving the twin lockshield valves (on the radiators referred
to above) in the OPEN position.
Turn up the room thermostat and adjust the lockshield
valve to give an uninterrupted flow through the radiator.
These valves should now be left as set.
2.
Open all manual or thermostatic radiator valves and adjust
the lockshield valves on the remaining radiators, to give
around 20
o
C temperature drop at each radiator.
3.
Adjust the room thermostat and programmer to NORMAL
settings.
1.19 SYSTEM BALANCING
CENTRAL HEATING
The Logic + System range of boilers have an ALUMINIUM
alloy heat exchanger.
IMPORTANT
The application of any other treatment to this product may
render the guarantee of Hunt Heating invalid.
If water treatment is used
Hunt Heating
recommend only the
use of
FERNOX F-1 & ADEY MC1
inhibitors and associated water
treatment products, which must be used in accordance with the
manufacturers’ instructions.
Notes.
1.
It is most important that the correct concentration of the
water treatment products is maintained in accordance with
the manufacturers’ instructions.
2.
If the boiler is installed in an existing system any unsuitable
additives MUST be removed by thorough cleansing.
3.
In hard water areas, treatment to prevent lime scale may be
necessary - however the use of artificially softened water is
NOT permitted.
4.
Under no circumstances should the boiler be fired before the
system has been thoroughly flushed.
For futher information contact
Hunt Heating.
Содержание LOGIC+ SYSTEM S18
Страница 2: ...2 Installation and Servicing...
Страница 61: ...61 Installation and Servicing...
Страница 72: ......