PRODUCT IDENTIFICATION
All pressurisation units described in this manual automatically maintain a minimum set pressure, the “Cold Fill”
pressure, in a heating or chilled system by transferring make-up liquid from a breaktank or sealed vessel into the
system.
When the system pressure falls below the required level the Duty pump automatically refills the system until the
pressure is restored. If the Duty Pump fails to maintain the required pressure the Support pump (where fitted) will
operate in addition to the Duty Pump.
Please note that the Serial Number “WNxxxxx” or “SNxxxxx” and model reference will be visible on the unit’s label and
on the back page of the manual supplied with the unit.
Examples of units manufactured by Aquatech Pressmain are shown below: -
Please note: it is also possible for the pump/controls/tanks to have been sold as a separate item, in which case the
O&M manual and CE declaration may only be applicable in part.
Model number examples: -
MiniPack
MPxx-B
MiniPack
MPxx-E
Pressurisation unit with
B
asic controller
Pressurisation unit with
E
nhanced controller
MP
- MiniPack
MP
3
max 3.0Bar cold fill pressure
7
max 7.0Bar cold fill pressure
1 1
pump
2 2
pump
B
B
asic MPC controller
E
E
nhanced 2020+ controller
e.g.
MP31-B
= max
3
.0Bar cold fill pressure with
1
pump and
B
asic MPC controller.
A “standard/basic” –B pressurisation unit controller has a 2 digit
display: -
An “Enhanced” –E controller with BMS volt free relays has
a 2 line by 20 or 24 character display: -
2.3
PRESSURE SYSTEM IS O.K.
Pressure
2.3 bar
