3
1 General
The CAT 5 booster set is a pressure boosting
system designed for raising the pressure of water
for wash down requirements. Using a single pump
fixed or variable speed booster, 115 litre actual
capacity tank with category 5 backflow prevention
via an AB airgap.
ATTENTION! Installation and commissioning by
qualified personnel only!
NOTE – An onsite audit must be completed once
installed to ensure there are no contributing
factors that may compromise the air gap (ie.
foaming, splashing)
2 Safety
Any works carried out on CAT 5 booster sets must
be completed by a qualified person. Failure to
comply to any of the information in this manual
may cause potential hazards to people and the
environment and may void the warranty.
Operators must be fully aware of all functions of
the boosterset and any risks associated. For more
information on training please contact Wilo Ph:
01283 523 000
WARNING! Local regulations must be complied
to when installing and maintaining the booster
set
2.1 Symbols and Signals
DANGER!
Extremely dangerous situation. Non-
observance could cause death or serious injuries.
WARNING!
The user may suffer from injuries
(serious). The mention of warning involves that
personal (serious) injuries may happen when
precautions are not observed.
ATTENTION!
Damage could be caused to the
pump or installation. The mention of attention
is used to indicate that by ignoring the relevant
safety instructions, damage could be caused to
the pump or its operation.
NOTE -
Useful remark for product handling. Any
possible difficulty is mentioned.
2.2 Modification and Spare Parts
Modifications to the booster are prohibited and
will invalidate the warranty. Wilo Approved spares
must be used at all times. For information on
spares see Table 4 of this manual
3 Transport and Storage
CAT 5 booster must always be transported
by pallet and moved with appropriate lifting
equipment. Booster must be stored in a dry
environment between –25 °C to +55 °C.
NOTE – If stored for future installation the film
wrapping must not be removed and must be
stored in a dry environment
4 Description and Operation
4.1 MHI PS-EM (Single Phase Fixed Speed)
4.1.1 Operating Mode
CAT 5 PS-EM is a fixed speed booster set which
is controlled with a Hand Off Auto (HOA) box via
a pressure switch. When the switch is turned to
Hand Mode the set will run at full speed constantly
and will not turn off. When the switch is turned to
Auto Mode the set will run until the pressure set
on the pressure switch has been reached. Once the
pressure has been achieved the set will run until
the programmable timer times out
4.1.2 Operating Features
•Programmable pressure switch – Sets the
pressure at which the timer starts via dials on the
front of the switch (Fig 6)
•Programmable timer – Sets the length of time the
booster will run once the set pressure has been
achieved. Programmable in the HOA box (Fig 6)
•Low water cut out switch – Turns the booster off
instantly once the water level drops below a set
level to stop air from entering the pump (Fig 1)
•Volt Free Contacts (VFC) – Normally open and
normally closed contacts signal if the pump has
tripped under high current (Fig 1)
NOTE – Programmable timer is inside the HOA
box and is factory set at 120 seconds to reduce
start/stop frequency of the set.
Содержание 2819142
Страница 6: ...6 Fig 1 MHI PS EM Electrical Connections Fig 2 MHIE DM Electrical Connections 8 Figures...
Страница 7: ...7 Fig 3 MHI EC EM Fig 4 MHIE EM Electrical Connections...
Страница 8: ...8 Fig 5 General Arrangement Hydraulic Fig 6 PS EM Layout...
Страница 9: ...9 Fig 7 MHIE EM DM Layout Fig 8 MHIE EM Controls...
Страница 16: ......