Air dehumidifiers, MID / MSP series

MSP single flow ductable dehumidifier, designed for dehumidification and heating of indoor pools and aggressive ambients.

• Installation in the room where dehumidification is needed (fixed or movable with pivoting wheels, optional) or in a technical room
• Galvanized steel panels, inside and outside painted
• Pre-coated finned coils suitable for aggressive environment
• Electronical components protected against chlorine
• Stainless steel condensate tray
• Double inlet centrifugal fan (EC radial fan, opt.) top or in-line supply
• Desuperheater for chlorined water

Principle scheme

1. Compressor, R410A refrigerant gas
2. Desuperheater (optional)
3. Condenser
4. Thermostatic expansion valve
5. Evaporator
6. Fan: direct drive for sizes up to 0950, belt transmission for sizes from 1100; radial EC fan optional
7. Post-heating or post-cooling water coil with 3 ways valve

Operating mode

Standart options:

• Mechanical humidistat
• Filter holder frame for the intake air duct
• Electronic chrono-humidistat
• Hot/chilled  water coil with a 3-way valve
• Silent version -2 dB(A)
• Soft-starter
• Manometers
• Hot gas defrost
• Swimming pool water desuperheater
• Centrifugal fan with high static pressure

Advanced control:

• Radial EC fans
• 0-10 V control terminal
• AAC: automatic airflow control
• Clock card for time scheduling
• Filter clogging sensor
• Remote user terminal
• TH probe for duct installation
• Serial board for Modbus, Lonworks, Bacnet, KNX,

  Ethernet TM connectivity

Legend:

• А – Fan
• B – Compressor
• C – Evaporator
• D – Condenser
• E – Hot water heat exchanger or electric heater (option)

Options:

• Filter holder frame for suction ducting with G2 or G4 filters (1)
• Mechanical hygrostat for wall installation (2)
• Electronic chrono – hygrostat (3)
• Water coil with modulating three-ways valve(4)

1. Only heating
2. Only heating, oversized
3. Cooling/Heating
4. Cooling/Heating, oversized

*3, 4 Including condensate tray and insulation

• Silent version (5)
• Soft-start
• Manometers (6)
• Hot gas defrost (mandatory in case of air temperature below 8°C)
• Desuperheater for technical or pool water (4)
• High static pressure centrifugal fan
• Radial EC Fan  (7)
• ACF: Automatic Control Flow; it allows to choose the air flow directly on the display and to keep it also in case of variable pressure drops due to the filters.
• Advanced control
• Clock card with time scheduling: 2 operating mode (weekday or holiday), 6 time slots per operating mode. Settable parameters: on/off, indoor temperature, indoor relative humidity.
• Dirty filters sensor (8)
• Temperature and humidity probe for duct installation (9)
• Remote user terminal including 20 m cable (10)
• Additional thermal insulation, thickness 20 mm or 40 mm
• Pivoting wheels (11)
• Serial board for BMS (12)

1. Modbus
2. LonWorks
3. BACnet
4. KNX

• Ethernet ™ interface card, protocols available: SNMP v1 & v2c, BACnet / IP, BACnet Ethernet and Modbus TCP / IP
• Contact for 0-10 V humidifier control
• Version for outdoor installation

  

Options for special applications

• Special coils for aggressive ambient
• Stainless steel AISI 316L panels
• Technical water condenser
• Electric heaters
• Pool water condenser

Type of fans

Seasonal operating mode

WINTER: start up, no occupants, covered pool, heating with hot water coil.
Compressor: OFF
Hot water coil: ON (optional)
Desuperheater: OFF (optional)

WINTER: normal operation, pool open, dehumidification.
Compressor: ON
Hot water coil: OFF (optional)
Desuperheater: OFF (optional)

SPRING, SUMMER, AUTUMN: normal operation, pool open, dehumidification with heat recovery (desuperheater)
Compressor: ON
Hot water coil: OFF (optional)
Desuperheater: ON (optional)

Perfomance graph

Dimensions

All the data refer to: air temperature 30 °C, relative humidity 80%, water temperature 80/70 °C

Note:
MID – standard (industrial) version
MSP – pool water version