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TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
should be coated with a thick layer of
thermal paste and inserted into the
sensor sleeve to the full depth. If the fit is
too loose, slide a piece of copper plate or
wire in beside the sensor, Seal the sensor
sleeve opening with silicone sealant
to prevent water ingress. Ensure that
sensors used on the collector are high
temperature rated (up to 250°C/486°F), in
particular the cable.
7.5. Mounting of Safety temperature
valve
It is recommended, and may be required
by regulations, that a temperature control
device (safety tempetarure value) be
fitted into the hot water pipe between
the water heater and bathrooms and
en-suites to reduce the risk of scalding.
This is achieved by controlling the water
temperature to below 50°C/122°F
(temperature may be adjustable).
7.6. Pressure control. Temperature
control. Relief valve.
Regardless
of
the
installation
configuration, pressure release values,
expansion vessels and/or other pressure
control devices must be installed. The
solar loop should be designed to operate
at no more than 800kPa -
PRV may be
850kPa. (800kPa = 8bar = 116psi)
For installation where mains
pressure
water is used, the system should ideally
be designed to operate at a pressure of
<500 kPa,
achieved by use of a pressure
limiting/reduction value.
For the reliable operation of system, we
recommend you check the lever of the
pressure and temperature return valve
(PTRV) every six months. The PTRV lever
should be raised and dropped gently
without effort.
Collector working (operating) pressure
should be secured using a pressure relief
valve at 6 bars.
An expansion vessel must be mounted in
order to take up the extra volume of fluid
caused by heat expansion. Recommended
capacity of expansion vessel is 4 ÷ 5 L/m
2
of PK type collector area, and 8 ÷ 10 L/m
2
of VTC type collector area.
To avoid damage to system and heat
carrier circuit, all air purge valves must
be closed upon purging of air from the
system. This will prevents the release of
steam and the penetration of oxygen
from the ambient air.
7.7. Filling of system.
To prevent overheating, the filling
of system must be carried out in the
morning or evening in the absence of
direct sunlight.
Direct use of collector for hot water
preparation is not allowed because of the
eventual clogging of pipes over a short
time by limescale deposits.
Inside collector pipes and risers circulates
a certain fluid (water, propylene glycol or
Tyfocor of freezing point corresponding
to the requirements of certain installation
(see section 7.1 of this manual.)When
using any other heat carrier fluid to fill the
collector manufacturer does not take any
responsibility for product warranty.
