Page 4
ENGLISH
Jandy
®
UV Medium Pressure | Installation & Operation Manual
Section 2. General Description
2.1 UV Disinfection
The germicidal effects of ultraviolet light (UV) with
wavelengths around 260 nm are well known for over
100 years. Its use has been increasing in recent years
as it presents a number of advantages over chemical
disinfection systems, since virtually UV light no alters
the physical and chemical composition of water, it
is very effective against any type of microorganism
(algae , bacteria, viruses, fungi, yeasts, etc.) further
minimizing the risks of handling and dosing of
potentially hazardous chemicals. Moreover, UV
treatment reduces the levels of combined chlorine in
water, thereby producing significant water savings
by reducing the volume and frequency of renewal of
pool water.
The Jandy UV MP treatment system, in addition
to maintaining a certain level of chlorine in pool
water, ensures the sanitary quality of pool water.
The treatment system will operate when the pool
recirculation (pump and filter) is operational.
The treatment systems are designed and
manufactured with the latest technology in UV
treatment of water, thus ensuring continuous
operation and minimal maintenance.
The proposed control architecture for the treatment
system has a number of features that allow the
highest levels of reliability, efficiency and scalability.
• Because the systems incorporate both radiation
and flow calibrated sensors, continuous
adjustment of the lamp power is allowed, thus
optimizing energy consumption and lifetime.
Calibrated sensors do not require any user
action on them, which does not happen with the
previous range of UV systems.
• Unlike the previous range, Jandy UV MP systems
manage two parameters when setting the lamp
power, radiation measured by the sensor and
flow. Thus, the system sets a nominal radiation
for each model, which is determined by the
maximum treatment flow to ensure a minimum
disinfection efficiency. If the flow to be treated
is less than nominal, so too will be the radiation
needed, so the systems will decrease the lamp
output power, optimizing energy consumption
and increasing lamp lifetime. Like the previous
range, whether radiation decreases due to loss
of lamp efficiency, turbidity, etc., the system will
adjust the lamp power.
• The lamp power system is based on an electronic
ballast which allows continuous operation with
high efficiency (greater than 95%).