CLIVET WSAT-SC 90D Series User Manual

M01W45H6-06
WSAT-SC
75C-180F
- ELECTRICAL CONNECTIONS -
24
SUGGESTED CONNECTION DIAGRAM
An example of a plan is as follows:
F = Impurity collector with filter
GE = Flexible joint
GRA = Automatic filling assembly with gate valve
M = Pressure gauge
P = Pump
PD = Differential pressure switch
R = Ball valve
RS = Discharge cock
SA = Storage tank (if necessary)
T = Thermometer
VP = Expansion vessel
VS = Safety valve
VSA = Automatic air relief valve
HYDROPACK
the modular pumping system allows the automatic reduction of the water capacity flow should the temperature rise above
the operative limits. The device proves particularly useful during start-ups, in weekend pauses or after long periods of
inactivity. When the temperature of the hydronic circuit’s water is particularly high, unwanted blockages due to overloads
are avoided together with the consequent interventions by specialised personnel for the guided re-starts.
Furthermore, Hydropack allows a variable water capacity flow in the systems where this would be called for.
By equipping the refrigerating units with the Hydropack accessory, the necessary flow capacity/head are provided
in different versions according to the plant’s potential.
• HYDROPACK with 2 pumps, for the unit of lower power, the basic solution with 2 pumps can be selected. In case of
blockage of a pump, the unit continues to operate normally up to about 60% of the load; this condition is in any case
more reliable than the traditional solution with a single-pump of greater power.
• HYDROPACK with 2 pumps + 1 stand-by, a third back-up pump can be envisaged for total reliability. In this way, the
stated water flow capacity is assured. (Infact, in case of faults the third pump comes automatically into operation and
the unit’s control device signals the blocking of the out-of-order pump).
• HYDROPACK with 3 pumps, for units of greater power; with the 3 pumps for this solution always active; the possible
blocking of one pump allows in any case the normal operation up to ’80% of the load (always with blockage
signalling). In this case, a back-up pump can be provided on request (not assembled); and the replacement can be
carried out in a few minutes, thanks to the simplicity of the connections envisaged.
Multi pump hydronic group including:
-R=shut-off valves,
-F=steel mesh filter(optional),
-M=gauges,
-VS=safety valve(6 Bar),
-P=high efficiency single-structure and single-rotor
electric pumps
VR =check valves,
-PRS= safety pressure switch (avoids pumps operation in
case of water absence),
-PHE=evaporator -kit including two blind plugs needed in
case of pump removal for maintenance opertaions.
RECOVERY EXCHANGER (OPTIONAL)
The unit can be equipped with exchangers to recover the condensation heat.
The recovery can be:
• TOTAL, with 100% recovery of the condensation heat
o the thermoregulation is performed by CLIVET control system
• PARTIAL with 20% recovery
o The customer is responsible for the management of the circulation pump, valves, thermostats, etc.
The recovery input water must not be below 25°C, in the event that, wrongful operations and breakages of the unit can
occur.
Water connections must be performed carefully as for the evaporator (filter, circuit washing, etc).
Perform all necessary interventions to avoid the RISK OF FREEZING (tubes insulation, emptying of circuit, addition of
glycol, anti-freeze resistances).
Water temperature can reach high temperatures (up to 100°C), therefore:
• avoid the RISK OF BURNS by adopting the necessary precautions (insulation of tubes, temperature detecting station
on water if the sanitary use is foreseen, etc.)
• Install safety valves and specifically dimensioned expansion tanks in the hydraulic circuit.
OPTIONAL
VS
VR
P
PHE
PRS
F
R
R
M
M
OPTIONAL
VS
VR
P
PHE
PRS
F
R R
M
M
VERSION WITH 2 POMPS VERSION WITH 3 POMPS
R
R
O
P
T
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N
A
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CLIVET WSAT-SC 90D Series Specifications

General

Brand	CLIVET
Model	WSAT-SC 90D Series
Category	Chiller
Language	English