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ENGLISH
ENGLISH
ACCESSORIES AND OPTIONAL EQUIPMENT
Mechanical Accessories
Pumping and Storage module
The purpose of the storage and pumping module is to lower the number of compressor surges, increasing the amount of water
in the system and, thus, its thermal inertia. It can be coupled to the side of the chiller and has the same depth and height dimen-
sions. Available in the Standard versions for all models and in the High Head version for models 16-19-24-30. In nominal ope-
rating conditions in the cooling mode, the Standard Version is able to provide the circulating water with 40 to 102 kPa residual
head, while the High Head Version has 123 to 142 kPa residual head.
With reference to the figure alongside and depending on the model, the Storage and
Pumping Module is equipped with:
1A. Multiple stage pump.
With a high head, able to suit the majority of installation requi-
rements. All pump components that come into contact with the pumped fluid are made
of stainless steel.
1B. Circulation pump.
Three-speed circulation pump that provides the chiller with the
right water flow rate. The 3rd speed is set during the production phase: it is inadvisa-
ble to modify this speed as the operation of the Module would be impaired.
2A. Pump suction sleeve
(1” GAS female) used for returning from the system
.
2B. Returning stub pipe from the system
(1” GAS male) used for returning from the
system
.
3. Pressure gauge.
Indicates the pressure level in the storage tank (only for mod. 30-
33 in the High head version and mod. 50 in the Standard version).
4. Delivery stub pipe of the system
(1” GAS male).
5. Safety valve.
With fixed setting. Activates when the pressure in the tank exceeds the
preset values.
6. Drain cock.
Drains the water from the storage module to prevent it from freezing during
winter periods, if not used for hot water storage.
7. Electric antifreeze heating element connection
(Accessory). Allows the storage
tank’s electric antifreeze heating element to be installed.
8. Storage tank.
Reduces the number of compressor start-ups and fluctuations in the
temperature of the water conveyed to the users. It is insulated with polyurethane foam
to prevent the formation of condensation and heat exchanges towards the outside.
9A. Automatic air venting.
Vents the tank when the system is filled.
9B. Air venting.
Positioned on the highest part of the module’s wet pipes, it bleeds the
air from the module itself when the system is filled.
10. Metal gauze water filter.
Can be inspected. Installed on the pump/circulator intake.
Preventing machining residues (dust, swarf) in the water pipes from entering the
pump or plate-type heat exchanger.
11. Surge chamber.
This is a closed, diaphragm type chamber. It absorbs the variations
in the volumes of water in the system caused by temperature variations.
12. Metal structure.
Made of galvanized sheet metal panels coated with polyurethane
powder paint to ensure good protection against adverse weather conditions.
GP - Protective Grilles
The kit comprises two electrowelded, painted grilles to protect the coils with extended sur-
faces.
ST - Bracketing kit for the Unit + Pumping and Storage module
The bracket kit comprises four bent sheet metal elements assembled together by self-
threading screws. The distance between the holes allows the pre-fixed chiller and storage
module to be recriprocally fastened together. Equipped with 8 rubber supports that redu-
ce the extent to which the units transmit vibrations to the bearing points. The brackets
have holes so that they can be fixed to the floor or to shelving. They are supplied painted
the same colour as the unit and storage module.
AVG - Rubber vibration dampers.
Kit comprising 4 cylindrical vibration dampers made of vulcanized rubber on metal washers.
They reduce the mechanical vibrations transmitted by the compressor and fan/s to the bearing
surface of the machine during normal operation. They can be used/installed under the unit (4
pcs), under the Storage Module (4 pcs) or under the Bracketing Kit (8 pcs).
KT - Flexible wet connections.
Allow the components to be quickly installed, even when the connections are slightly misa-
ligned, also limiting the extent to which vibrations are transmitted from the chiller to the sto-
rage tank and, consequently, to the system.
AV - Hydraulic quick couplings
Used for the wet connections between the Unit and Storage module, making the unit + module assembly as compact and small
in size as possible. The kit consists of two couplings complete with seal and two threaded stub pipes with relative groove.
NOTE: If the hydraulic quick couplings are not used, refer to the coupling measurements given in the tables.
The kit consists of two couplings complete with seal and two threaded stub pipes with relative groove.
9B
3
5
4
6
7
8
10
9A
1A
2A
11
12
9B
1B
2B
5
4
6
7
8
10
9A
11
12
Fig.1
Mod. 30-33 in the High Head Version
Mod. 50 in the Standard Version
Mod. 30-33 in the Standard Version
Fig.2
