TOP/SZ 1022÷4111

Home Montair Products Direct expansion Close Control units AIR COOLED DIRECT EXPANSION DUAL FLUID UNITS TOP/SZ 1022÷4111
TOP/SZ 1022÷4111
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TOP/SZ 1022÷4111

AIR COOLED DIRECT EXPANSION DUAL FLUID UNITS WITH SCROLL COMPRESSORS AND EC INVERTER PLUG-FANS

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Dual Fluid unit with direct expansion, air-condensation and double circuit: one with direct expansion and air-condensing, and one with chilled water.
The two circuits are separate and with non-simultaneous start-up, for internal back-up.
The TOP range is equipped with EC Inverter Plug-Fans; High Head fans are available as accessories.
The EC Inverter Plug-Fans allow fuel consumption at partial loads to be reduced by up to 61% compared to centrifugal fans, modulating the power consumption according to the required thermal load.
The TOP range is available in two air delivery configurations: TOPT with upflow and TOPB with downflow.
Unit supervision is developed by means of Modbus RTU protocol over RS485
serial interface as standard configuration. Other communication protocols and
interfaces are available as option.
The units are suitable for operation at a high outdoor air temperature (up to 52 C) with the correct combination with the XT remote condensers.

Versions

  • TOPT/SZ - Top air discharge and frontal intake
  • TOPB/SZ - Bottom air discharge and upper intake

Power range

  • 22.0-113 kW
  • 6.4-32.0 Ton

Factory fitted accessories

  • AP High ESP fans
  • SL Unit silencement
  • CM Scheduler
  • EC EC Inverter fans
  • TE Electronic expansion valve
  • AR Air renewal inlet with filter
  • AT Constant air flow regulation control
  • AT/P Constant available static pressure regulation control
  • PA Differential pressure switch fans control
  • PF Differential pressure switch filters control
  • ES Electrical heater with step regulation
  • WS2 Hot water coil with 3-Way valve
  • PG Hot gas post-heating coil (with valve)
  • UMI Electrodes steam humidifier
  • WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/4G/TCP-IP)
  • SA Water alarm sensor
  • IS Modbus RTU protocol, RS485 serial interface
  • IST Modbus TCP/IP protocol, Ethernet port
  • ISB BACnet MSTP protocol, RS485 serial interface
  • ISBT BACnet IP protocol, Ethernet port
  • ISB1 BACnet MSTP protocol, RS485 serial interface, BTL certified.
  • ISBT1 BACnet IP protocol, Ethernet port, BTL certified.
  • ISS SNMP protocol, Ethernet port
  • RE Adjustable minimum/maximum voltage and phase control relay

Loose accessories

  • MP Condensate drain pump
  • MP/U Condensate and humidifier drain pump
  • SB Fire sensor
  • SC Smoke sensor
  • CR Remote control panel
  • ZP Adjustable baseframe with shock absorbers (mod. B only)
  • ZA Adjustable baseframe with shock absorbers and deflector (mod. B only)
  • DL Bottom plenum for side connections (mod. T only)
  • BA Top vertical intake plenum with F7 efficiency filter (mod. B only)
  • BD Top frontal discharge plenum with grid (mod. T only)
  • DM Bottom frontal discharge plenum with grid (mod. B only)
  • BV Top discharge/intake plenum with damper
  • BF Direct Free-Cooling plenum for units with bottom air discharge
  • DF Direct Free-Cooling plenum for units with top air discharge
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Direct expansion circuit performancesTotal cooling capacity (1)kW22,440,547,566,179,6104113
Sensible cooling capacity (1)kW17,533,735,950,868,184,787,9
SHR (1)%78%83%77%86%81%78%
Total absorbed power (1)kW6,811,314,219,321,730,533,0
EER (1)3,303,583,353,423,673,413,42
Chilled water circuit performancesTotal cooling capacity (2)kW16,836,838,357,375,696,899,5
Sensible cooling capacity (2)kW14,531,332,447,562,780,181,1
SHR (2)%87%85%85%83%83%83%81%
Water flow (2)l/s0,801,751,822,733,604,624,74
Total pressure drops (2)kPa25384027373838
Refrigerant circuitRefrigerant circuitsN°1112222
CompressorsN°1112244
Fan sectionFansN°1112233
Air flow (3)m³/h5200100001000014200192002400024000
Max. available static pressure - STD fansPA270335340400370400400
Max. available static pressure - High ESP fansPA755475480500485490495
FiltersTipoG4G4G4G4G4G4G4
Electrical characteristicsPower supplyV/Ph/Hz380/3+N/60380/3+N/60380/3+N/60380/3+N/60380/3+N/60380/3+N/60380/3+N/60
Sound pressureTOPT - Top Air Discharge version (4)dB(A)61636463666666
TOPB - Bottom Air Discharge version (4)dB(A)56585957606060
ACCESSORIES & ADDITIONAL SECTIONSACCESSORIES & ADDITIONAL SECTIONS
Electrical heatingStepsN°3333333
Electrical powerkW7,513,513,516,522,527,027,0
Hot water coilHeating capacity (5)kW9,020,420,828,839,650,150,8
Water flow (5)l/s0,430,991,011,391,912,422,45
Total pressure drops (5)kPa29363643434141
Hot gas coilHeating capacity (6)kW6,510,813,518,721,229,232,0
Electrodes steam humidifierNominal steam productionkg/h4888151515
Nominal powerkW3,06,06,06,011,311,311,3

Dimensions

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DimensionsLmm875135013501750222526252625
Wmm675890890890890890890
Hmm1980198019801980198019801980
WeightsTransport weight TOPT - Top Air Dischargekg32452553767683910501050
Transport weight TOPB - Bottom Air Dischargekg34154255470586810851085
Operating weight TOPT - Top Air Dischargekg31350551765481110171017
Operating weight TOPB - Bottom Air Dischargekg33052253468384010521052

Notes

  • 1 Ambient air temperature 24°C - R.H. 50%, condensing temperature 45°C.
  • 2 Ambient air temperature 24°C - R.H. 50%, water temperature 7°C / 12°C.
  • 3 Air flow calculated with Available Static Pressure of 20 Pa (0,08 in WG).
  • 4 Sound pressure level calculated in free field conditions at 1,5 m height and 2 m distance. According to ISO 3744.
  • 5 Ambient air temperature 24°C, water temperature 45°C/40°C (post-heating operation).
  • 6 Temperatura aria ambiente 24°C.