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4. Instalation (cont.)
4.5. Data for Hydraulic Interconnection and System Water Sensors
The Aquasmart system always relies on the modulation between its units in order to ensure that the system's outlet water
(mixing water) is meeting the temperature set point set on the master machine.
Simple and safe operation is achieved by adopting a set of sensors that allows the reading of control temperatures and keeps
both the system and each module operating safely. The main safety elements are:
Equipment
System Inlet water
sensor
System Outlet water
sensor
Unit Outlet water
sensor
Unit fl ow sensor
Diff erential pressure
switch
Pump drive
Valve actuation
Y Filter
Table 5
It is mandatory to install the Y fi lter (Mesh 40) on the water inlet of all modules even when not supplied as standard by the factory.
It is mandatory to install the DPS (diff erential pressure switch for water) when more than 3 chillers are installed (above 45TR).
18
Key
Evaluate whether the inlet temperature is within the
REWT
operating values for the system.
Main system control sensor, where it allows the system
RLWT
to perform the modulation to guarantee the delivery
of water at the desired temperature.
Evaluate the outlet temperature of each unit for freeze
ULWT
Freeze protection due to lack or low water fl ow per
WFC
Switch that switches to identify pressure diff erence
DPS
between water inlet and outlet.
13 and 14 of
Pump drive control (WP), to ensure the correct and
terminal BC2
(K4)
10 to 12 of
Valve drive control (WV), to ensure the correct and
terminal BC2
(K2)
-
Filter for heat exchanger protection
Function
protection.
unit
safe operation of the units.
safe operation of the units.
IMPORTANT
IMPORTANT
Supply
Factory default (fi eld
installation)
Factory default (fi eld
installation)
Factory default (fi eld
installation)
Factory default (fi eld
installation)
Field installation.
Mandatory for ODU>=4.
The pump is not shipped
from the factory, only the
24VAC command.
The valve is not shipped
from the factory, only the
24VAC command.
Factory optional item
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