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Galletti МСС-С 12 [4/24] Constructive features
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4
RG66002701 - Rev 01
MCC
The technical and dimensional data reported in this manual may be modified
MCC 06 - 07
3 COMPONENTS LAY-OUT
2 CONSTRUCTIVE FEATURES
VENTILATION SECTION
Statically and dynamically balanced centrifugal fans with forward-curving
blades, directly mounted on the electric motor. All electric fans are mounted
on an appropriate structure with interposed vibration dampers to reduce the
propagation of vibrations.
All units are equipped with phase-cut speed regulator controlled by the pressure
probe.
The ventilation compartment is completely insulated with anti-condensation
material and separated from the compressor/electrical system compartment
for inspection purposes when the unit is working (without interfering with the
finned block exchanger).
The absence of belt drive and the frontally removable fan considerably reduce
maintenance work.
FINNED BLOCK HEAT EXCHANGER
Built with 3/8" copper piping and aluminium fins.
The special engineering of the heat exchangers allows defrost cycles to be
carried out at maximum speed in the models with heat pump operation, which
brings clear benefits in terms of the integrated efficiency of the whole cycle.
The condenser coil can be fitted with a metal filter that is easily removed from
the machine side panels in case of ducted air intake.
With heat pumps, an aluminium condensate drip pan is mounted that can be
ducted. To prevent ice from forming, a heating cable is installed in the heat
exchanger base.
ELECTRIC PANEL
The electric panel is built and wired according to the CEE 73/23 directive, to
the 89/336 directive for the electromagnetic compatibility and related standards.
Built with steel panels sheet, completely closed and protected by the enclosing
panels of the unit.
It is composed by:
- compressors conctactors
- pump relay
- pump, fans, trasformer and main control box protection fuses
- 230V/24V tranformer
- terminal box
AVAILABLE OPTIONS
- refrigerant gauges
- antifreeze kit
- electronic expansion valve
- partial heat recovery system 20%(cooling only model)
- special treatment on coils (copper/copper, cataphoresys,Blygold)
- remote control board (PCD)
- simplified remote board (PDCS)
- antivibration mounting.
- protecting grid for condensing coils.
- air delivery connectors
Description
1 R410A-air heat-exchangers
2 R410A-water heat-exchanger
3 Fan
4 Water differential pressure switch
5 Air purge valve
6 Expansion vessel
7 Water tank
8 R410A safety valve
9 4-way valve (MCC H)
10 Thermostatic valve
11 Automatic filling device
12 Water safety valve
13 Liquid receiver
14 Pump
15 Compressor
16 Refrigerant filter
17 Low pressure switch and charge port
18 High pressure switch and charge port
19 Port on refrigerant circuit (high)
Содержание
- Declaration of conformity 2
- The range 2
- Constructive features 3
- Components lay out 4
- Constructive features 4
- Components lay out 5
- Mcc 09 15 5
- Mcc 18 22 5
- Mcc 25 37 5
- 0 1 2 3 to be requested at the moment of the order power factor correction capacitors soft starter 6
- Compressor options not present power factor correction capacitors soft starter 6
- Heat pump mcc hb basic unit only evaporator mcc hp unit with pump and expansion vessel mcc hs unit with buffer tank pump and expansion vessel 6
- Models and configurations 6
- The choice of some options can prevent the choice of some options or oblige the selection of other fields to contact the galletti for verification 6
- The range is madde of 10 models cooling only cwith cooling capacities from 6 to 37 kw and 10 models heat pump operation with heating capacity from 6 to 41 kw to simplify the way of making the order galletti offers 3 different solutions of hydraulic kit built in the unit for only cooling only and heating pumps units 6
- Water chiller mcc cb basic unit only evaporator mcc cp unit with pump and expansion vessel mcc cs unit with buffer tank pump and expansion vessel 6
- Cooling only units rated technical data 7
- Heat pump units rated technical data 7
- Rated technical data 7
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pf cooling capacity pa total electric absorbed power models with hydraulic kit mcc cp mcc cs 8
- Mcc c cooling operation 8
- Performances 8
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pf cooling capacity pa total electric absorbed power models with hydraulic kit mcc cp mcc cs 9
- Mcc c cooling operation 9
- Performances 9
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pf cooling capacity pa total electric absorbed power models with hydraulic kit mcc hp mcc hs 10
- Mcc h cooling operation 10
- Performances 10
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pf cooling capacity pa total electric absorbed power models with hydraulic kit mcc hp mcc hs 11
- Mcc h cooling operation 11
- Performances 11
- In the heat pump operation heating mode the actual heating capacities of units may be lower than the values shown in the table due to defrosting cycles 12
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pt heating capacity pa total electric absorbed power models with hydraulic kit mcc hp mcc hs rh relative umidity 12
- Mcc h heating operation 12
- Performances 12
- In the heat pump operation heating mode the actual heating capacities of units may be lower than the values shown in the table due to defrosting cycles 13
- Inlet air dry bulbe temperature tw in out inlet outlet air temperature pt heating capacity pa total electric absorbed power models with hydraulic kit mcc hp mcc hs rh relative umidity 13
- Mcc h heating operation 13
- Performances 13
- Calculation factors 14
- Cooling mode 14
- Glycol and water solution 14
- Heat recovery options 14
- Heating mode 14
- Operating limits 14
- Water temperature drop rise different than 5 c 14
- Pressure drop on water side 15
- The following diagrams show evaporator pressure drops δ pw according to water flow rate qw with average water temperature of 10 c 15
- The following diagrams show availiable unit pressure head pu according to water flow rate qw with average water temperature of 10 c 16
- Unit available pressure head 16
- Water circuit 17
- Diagram showing electrical connections between mca and pcds pcd remote control panel 18
- Electrical data 18
- Base dampers 19
- Overall dimensions mcc 06 07 19
- Base dampers 20
- Overall dimensions mcc 09 15 20
- Base dampers 21
- Overall dimensions mcc 18 22 21
- Base dampers 22
- Overall dimensions mcc 25 37 22
- Installation clearance requirements 23
- To guarantee the proper functioning of the unit and access for maintenance purposes it is necessary to comply with the minimum installation clearance requirements shown in figures 1 and 2 verify that there are no obstacoles in front of the fans air outlet avoid any and all situations of backflow of hot air between air outlet and inlet of the unit if even only one of the above conditions is not fulfilled please contact the manufacturer to check for feasibility 23
- Siting 24
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