Resfriadores de compartimentos de gabinetes | Nex Flow Air Products

Resfriadores de compartimentos de gabinetes

The Patented Frigid-X™ NEMA Type 4-4X-316L (IP66) Stainless Steel Panel Coolers are ideal for the pharmaceutical industry and extreme corrosive environments where 303/304 stainless steel is not adequate.

Visão Geral do Produto

O resfriadores de compartimentos de gabinetes da série Frigid-X para painéis de controle eletrônico fornece um método de baixo custo de purgar e resfriar painéis de controle elétricos e eletrônicos usando um tubo de vórtice de aço inoxidável para criar ar frio a partir de ar comprimido comum.

Nossos resfriadores de compartimentos de gabinetes são compactos e podem ser instalados em minutos através de um nocaute elétrico padrão. Eles também são feitos de aço inoxidável para resistir à chuva, neve, umidade, uso geral em ambientes externos e ambientes corrosivos.

Nex Flow™ oferece 4 tipos de resfriadores de painéis elétricos com classificação NEMA listados pela UL:

Resfriadores de painéis de Frigid-X NEMA Tipo 12 (IP-52) Resfriadores de painéis de Frigid-X NEMA Type 3R (IP-14) Para Painéis de Controle Eletrônico para uso geral em ambientes industriais onde não é aplicado nenhum spray de líquido direto à unidade. Resfriadores de painéis de gabinetes Frigid-X NEMA tipo 3R (IP-14) para painéis de controle eletrônico para utilização no exterior.

 Resfriadores de painéis Frigid-X NEMA Tipo 4-4X (IP-66) Para painéis de controle eletrônico – resistente a respingos, para uso em ambientes de lavagem, bem como em uso externo. Concepção patenteada exclusiva * para proteção segura estanque à água.

Resfriadores de painéis Frigid-X NEMA Tipo 4-4X-316L (IP-66) O patenteado* NEMA TYPE 4-4X-316L (IP 66) Frigid-X™ Resfriadores de painéis são construídos de aço inoxidável 316L. Poeira, estanque ao óleo, resistente aos pulverizadores e usado em ambientes onde existem líquidos e para serviços de alimentação e ambientes corrosivos.

Número da patente nos EUA 8,616,010 / Outros países: patenteado ou patente pendente

Nota: Sempre questione as unidades não aprovadas usadas nos gabinetes elétricos para garantir que seus painéis não sejam danificados por produtos inferiores.

A Nex Flow™ oferece um adesivo de advertência de alta temperatura grátis com todos Resfriadores de painéis Frigid-X comprados para o ar condicionado de painéis de controle elétricos e eletrônicos. A alta temperatura dentro de um painel de controle pode ser prejudicial ao equipamento interno e levar ao desligamento não planejado das operações da fábrica. A etiqueta fornece um aviso eficaz com um indicador de mudança de cor para LARANJA e um aviso de perigo com um indicador de mudança de cor para VERMELHO. A mudança de cor é reversível, portanto, quando o problema de temperatura é corrigido, o rótulo pode continuar a ser usado indefinidamente. Embora seja apenas uma medida qualitativa, ela fornece um monitoramento preventivo ideal de possíveis problemas de temperatura dentro de um painel de controle.

Recursos / Vantagens

  • Baixo Custo
  • Compacto
  • Sem CFCs
  • Instalação rápida
  • Estabiliza a temperatura e a umidade do gabinete
  • Praticamente livre de manutenção (sem peças móveis)
  • Monta-se em um eliminatório elétrico padrão
  • Pára os danos causados pelo calor e incomodativos disparos de disjuntores
  • Elimina ventiladores e filtros
  • Evita a contaminação pela sujeira mantendo o invólucro sob pressão positiva
  • Unidades aplicáveis a todos os ambientes, incluindo altas temperaturas a 200ºF

Vídeos

Como funcionam os resfriadores de compartimentos de gabinetes

Overheating electrical and electronic control panels cause plant shutdowns and costly maintenance issues if not addressed.  In many cases regular air conditioning is adequate to address cooling.  But some factory environments are better suited to vortex tube operated systems such as the Frigid-XTM Panel Cooler.  If you find that your air conditioners are breaking down often because of a nasty factory environment or high vibration causing damage or frequent service and recharging, or if filters require frequent change (and disposal which is an extra cost) then these cooling systems are economical to use.

O ar comprimido entra no ponto (A) no componente do tubo de vórtice do resfriador de painel. O tubo de vórtice divide o ar comprimido em uma corrente de ar quente (B) e fria (C). O ar quente do tubo de vórtice é ventilado para a atmosfera no ponto (D) após ser abafado para reduzir o ruído. O ar quente deslocado de dentro do refrigerador de painel de controle ou do gabinete é exaurido pelo ponto (E). O ar frio entra no painel (F) através da mangueira de distribuição a frio (G). Os furos (H) são feitos no kit de mangueira para fornecer o ar frio dentro do resfriador de painel, quando necessário. Um silenciador (I) reduz ainda mais o nível de ruído do ar exaustivo.

The Frigid-X™ Panel Coolers are all RUL tested and approved with three NEMA ratings with equivalent IP rating for other countries – NEMA 12 (IP 54) versions for most control panels, NEMA 3R (IP14) for outside use, and NEMA 4-4X (IP66) for corrosive atmospheres.  Material is normally 304 stainless bit 316L stainless steel versions also available if required.
Normally Panel Coolers are mounted on the top of control cabinets but if there is no room, side mount systems are available.   A Thermostat and Solenoid valve package or Electronic Control System will turn the Panel Cooler on or off as required saving compressed air.  In very dirty environments, where a small amount of compressed flow is desired in the enclosure for purging (to keep out a dirty environment) and optional ByPass System is available.

Dimensions

mini cabinet cooler dimensions
medium cabinet cooler dimensions

Seleção

Panel Coolers, Panel Cooler, Panel Air Conditioner, Cabinet Enclosure Cooler, Electrical Panel Air Conditioners, Cabinet Cooling Solution, Cooler Master Cabinet, Panel Air Conditioner, Adjustable Thermostat, Electrical Panel Coolers, How to Cool Electrical Enclosures, Electronic Temperature ControlCabinet enclosure coolers come with a 5 micron filter with an automatic drain (except for the 316L stainless steel units) for the compressed air supply to insure clean, dry air and an air distribution kit to circulate the cold air inside the enclosure for even cooling.

Cabinet enclosure coolers are available with or without thermostat control.

When constant cooling and a constant positive purge is required we recommend the continuous operating version without the thermostat and solenoid valve. The cooling effect can be controlled by adding a regulator in line to reduce pressure for reduced cooling when it is not required and to conserve energy.

Systems utilizing a thermostat and solenoid valve saves air by activating the air conditioner only when the internal temperature reaches a critical level. The adjustable thermostat is factory set at 95°F but can be readjusted on site.

Thermostat and solenoid valve systems are recommended where the heat load can fluctuate (such as for frequency drives) and where a continual purge is not required. The thermostat and solenoid “package” can also be added at a later date to a continuous system. An Electronic Thermostat System is also available replacing the thermostat and solenoid valve with a control box to “set” the temperature (ELC System).

If mounting cannot be on the top of the control panel an optional side mount is available (except or the 316L stainless units). Panel Coolers must be mounted vertical either at the top or at the side using the side mount.

Contact Nex Flow™ for assistance in sizing cabinet enclosure cooler – Frigid-X series. See Below for Sizing Specifications

MODEL NO. VERSION BTU/Hr. cooling*(WATTS) dBA at 80 PSIG (5.5 bar)
61004A NEMA Type 12 (IP-54) Continuous Operation 290 (85) 64
61008A NEMA Type 12 (IP-54) Continuous Operation 580 (170) 66
61015A NEMA Type 12 (IP-54) Continuous Operation 1100 (322) 72
61025A NEMA Type 12 (IP-54) Continuous Operation 1800 (527) 73
61030A NEMA Type 12 (IP-54) Continuous Operation 2100 (615) 74
61040A NEMA Type 12 (IP-54) Continuous Operation 2900 (849) 76
63004A NEMA Type 12 (IP-54) Continuous Operation 290 (85) 64
63008A NEMA Type 12 (IP-54) on-off control 580 (170) 66
63015A NEMA Type 12 (IP-54) on-off control 1100 (322) 72
63025A NEMA Type 12 (IP-54) on-off control 1800 (527) 73
63030A NEMA Type 12 (IP-54) on-off control 2100 (615) 74
63040A NEMA Type 12 (IP-54) on-off control 2900 (849) 76
61004R NEMA Type 3R (IP14) Continuous Operation 290 (85) 64
61008R NEMA Type 3R (IP-14) Continuous Operation 580 (170) 66
61015R NEMA Type 3R (IP-14) Continuous Operation 1100 (322) 72
61025R NEMA Type 3R (IP-14) Continuous Operation 1800 (527) 73
61030R NEMA Type 3R (IP-14) Continuous Operation 2100 (615) 74
61040R NEMA Type 3R (IP-14) Continuous Operation 2900 (849) 76
63004R NEMA Type 3R (IP-14) on-off control 290 (85) 64
63008R NEMA Type 3R (IP-14) on-off control 580 (170)) 66
63015R NEMA Type 3R (IP-14) on-off control 1100 (322) 72
63025R NEMA Type 3R (IP-14) on-off control 21800 (527) 73
63030R NEMA Type 3R (IP-14) on-off control 2100 (615) 74
63040R NEMA Type 3R (IP-14) on-off control 2900 (849) 76
61104X NEMA Type 4-4X (IP-66) Continuous Operation 290 (85) 64
61108X NEMA Type 4-4X (IP-66) Continuous Operation 580 (170) 66
61115X NEMA Type 4-4X (IP-66) Continuous Operation 1100 (322) 72
61125X NEMA Type 4-4X (IP-66) Continuous Operation 1800 (527) 73
61130X NEMA Type 4-4X (IP-66) Continuous Operation 2100 (615) 74
61140X NEMA Type 4-4X (IP-66) Continuous Operation 2900 (849) 76
63104X NEMA type 4-4X (IP-66) on-off control 290 (85) 64
63108X NEMA Type 4-4X (IP-66) on-off control 580 (170)) 66
63115X NEMA Type 4-4X (IP-66) on-off control 1100 (322) 72
63125X NEMA Type 4-4X (IP-66) on-off control 21800 (527) 73
63130X NEMA Type 4-4X (IP-66) on-off control 2100 (615) 74
63140X NEMA Type 4-4X (IP-66) on-off control 2900 (849) 76
60115X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 1100 (322) 72
60125X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 21800 (527) 73
60130X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 2100 (615) 74
60140X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 2900 (849) 76

** In 316 environments customers will normally have special filtration systems  already in place.

*Cooling effect based on 95°F temperature inside cabinet, 100 PSIG (6.9 BAR) compressor inlet pressure, and 70ºF (21ºC) inlet temperature.

BTU/hr. figures rounded to nearest 100 BTU/hr (1 WATT).

All Continuous Operation models include the cooling unit, filter with auto drain and cold air distribution kit.

All On-Off control units include the cooling unit, filter with auto drain, cold air distribution kit, solenoid valve and thermostat.

Calculating Head Load

Total heat load consists of the heat transfer from outside your panel and from the heat dissipated inside the control unit.

Useful terms and conversions:

1 BTU/hr = 0.293 watts
1 BTU/hr – 0.000393 horsepower
1 Watt = 3.415 BTU/hr
1 horsepower = 2544 BTU/hr
1 Watt = 0.00134 horsepower
1 Square Foot = 0.0929 square meters
1 Square Meter = 10.76 square foot

Typical fan capacity:

4″ fan: 100 CFM (2832 LPM)
6″ fan: 220 CFM (6230 LPM)
8″ fan: 340 CFM (9628 LPM)
10″ fan 550 CFM (15574 LPM)

BTU/hr. cooling effect from fan 1.08 x (temp. inside panel in °F – temp. outside panel in degrees F) x CFM.

Watts cooling effect from fan: 0.16 x (temp. inside panel in °C – temp. outside panel in degrees C) x LPM.

Calculating BTU/hr. or Watts:

  1. Determine the heat generated inside the enclosure. Approximations may be necessary. For example, if you know the power generated inside the unit, assume 10% of the energy is dissipated as heat.
  2. For heat transfer from the outside, calculate the area exposed to the atmosphere except for the top of the control panel.
  3. Choose the internal temperature you wish to have, and choose the temperature difference between it and the maximum external temperature expected.
  4. From the conversion table that follows, determine the BTU/hr. per square foot (or watts per square meter) for the temperature difference.
  5. Multiply the panel surface area times the BTU/hr. per square foot (or watts per square meter) to get the external heat transfer in BTU/hr or in watts.
  6. Sum the internal and external heat loads calculated.
  7. If you do not know the power used in the enclosure but you can measure temperatures, then measure the temperature difference between the outside at current temperature, and the present internal cabinet temperature.
  8. Note size and number of any external fans. Provide this information to Nex Flow™  to assist in sizing the appropriate cooling system.
Temperature Difference in °F BTU/hr./sq. ft. Temperature Difference in °C Watts/sq.m
5 1.5 3 5.2
10 3.3 6 11.3
15 5.1 9 17.6
20 7.1 12 24.4
25 9.1 15 31.4
30 11.3 18 39.5
35 13.8 21 47.7
40 16.2 24 55.6

Example:

The control panel cooler has two frequency drives totaling 10 horsepower and one module rated at 100 watts. The maximum outside temperature expected is 105°F or 40.5°C. The area of the control panel cooler exposed sides, except for the top is 42 square feet or 3.9 square meters. We want the internal temperature to be 95° or 35°C.

Total internal power is 10 hp x 746 watts/hp – 7460 plus 100 watts = 7560 watts.
Assume 10% forms heat = an internal heat load of 756 watts.

Or

Total internal power is 10 hp x 2544 BTU/hp = 25440 BTU/hr plus 100 watts x 3.415 BTU/hr/watt = 25782 BTU/hr.

Assume 10% forms heat = an internal heat load of 2578 BTU/hr.

External heat load: The temperature difference between the desired temperature and the outside is 10°F or 5.5°C. Using the conversions (and interpolating where necessary) we multiply the area by the conversion factor:

42 sq. ft x 3.3 – 139 BTU/hr or 3.9 sq. m x 10.3 = 40 watts

Total Heat Load: 756 + 40 – 796 watts or 2578 + 139 – 2717 BTU/hr.

You would use a Model 61040 for constant operation or a Model 63040 for one-off control. (Rated at 2900 BTU/hr or 849 watts).

Visão Global

Visão Geral do Produto

O resfriadores de compartimentos de gabinetes da série Frigid-X para painéis de controle eletrônico fornece um método de baixo custo de purgar e resfriar painéis de controle elétricos e eletrônicos usando um tubo de vórtice de aço inoxidável para criar ar frio a partir de ar comprimido comum.

Nossos resfriadores de compartimentos de gabinetes são compactos e podem ser instalados em minutos através de um nocaute elétrico padrão. Eles também são feitos de aço inoxidável para resistir à chuva, neve, umidade, uso geral em ambientes externos e ambientes corrosivos.

Nex Flow™ oferece 4 tipos de resfriadores de painéis elétricos com classificação NEMA listados pela UL:

Resfriadores de painéis de Frigid-X NEMA Tipo 12 (IP-52) Resfriadores de painéis de Frigid-X NEMA Type 3R (IP-14) Para Painéis de Controle Eletrônico para uso geral em ambientes industriais onde não é aplicado nenhum spray de líquido direto à unidade. Resfriadores de painéis de gabinetes Frigid-X NEMA tipo 3R (IP-14) para painéis de controle eletrônico para utilização no exterior.

 Resfriadores de painéis Frigid-X NEMA Tipo 4-4X (IP-66) Para painéis de controle eletrônico – resistente a respingos, para uso em ambientes de lavagem, bem como em uso externo. Concepção patenteada exclusiva * para proteção segura estanque à água.

Resfriadores de painéis Frigid-X NEMA Tipo 4-4X-316L (IP-66) O patenteado* NEMA TYPE 4-4X-316L (IP 66) Frigid-X™ Resfriadores de painéis são construídos de aço inoxidável 316L. Poeira, estanque ao óleo, resistente aos pulverizadores e usado em ambientes onde existem líquidos e para serviços de alimentação e ambientes corrosivos.

Número da patente nos EUA 8,616,010 / Outros países: patenteado ou patente pendente

Nota: Sempre questione as unidades não aprovadas usadas nos gabinetes elétricos para garantir que seus painéis não sejam danificados por produtos inferiores.

A Nex Flow™ oferece um adesivo de advertência de alta temperatura grátis com todos Resfriadores de painéis Frigid-X comprados para o ar condicionado de painéis de controle elétricos e eletrônicos. A alta temperatura dentro de um painel de controle pode ser prejudicial ao equipamento interno e levar ao desligamento não planejado das operações da fábrica. A etiqueta fornece um aviso eficaz com um indicador de mudança de cor para LARANJA e um aviso de perigo com um indicador de mudança de cor para VERMELHO. A mudança de cor é reversível, portanto, quando o problema de temperatura é corrigido, o rótulo pode continuar a ser usado indefinidamente. Embora seja apenas uma medida qualitativa, ela fornece um monitoramento preventivo ideal de possíveis problemas de temperatura dentro de um painel de controle.

Vantagens

Recursos / Vantagens

  • Baixo Custo
  • Compacto
  • Sem CFCs
  • Instalação rápida
  • Estabiliza a temperatura e a umidade do gabinete
  • Praticamente livre de manutenção (sem peças móveis)
  • Monta-se em um eliminatório elétrico padrão
  • Pára os danos causados pelo calor e incomodativos disparos de disjuntores
  • Elimina ventiladores e filtros
  • Evita a contaminação pela sujeira mantendo o invólucro sob pressão positiva
  • Unidades aplicáveis a todos os ambientes, incluindo altas temperaturas a 200ºF
Vídeos

Vídeos

Como funcionam os resfriadores de compartimentos de gabinetes

Overheating electrical and electronic control panels cause plant shutdowns and costly maintenance issues if not addressed.  In many cases regular air conditioning is adequate to address cooling.  But some factory environments are better suited to vortex tube operated systems such as the Frigid-XTM Panel Cooler.  If you find that your air conditioners are breaking down often because of a nasty factory environment or high vibration causing damage or frequent service and recharging, or if filters require frequent change (and disposal which is an extra cost) then these cooling systems are economical to use.

O ar comprimido entra no ponto (A) no componente do tubo de vórtice do resfriador de painel. O tubo de vórtice divide o ar comprimido em uma corrente de ar quente (B) e fria (C). O ar quente do tubo de vórtice é ventilado para a atmosfera no ponto (D) após ser abafado para reduzir o ruído. O ar quente deslocado de dentro do refrigerador de painel de controle ou do gabinete é exaurido pelo ponto (E). O ar frio entra no painel (F) através da mangueira de distribuição a frio (G). Os furos (H) são feitos no kit de mangueira para fornecer o ar frio dentro do resfriador de painel, quando necessário. Um silenciador (I) reduz ainda mais o nível de ruído do ar exaustivo.

The Frigid-X™ Panel Coolers are all RUL tested and approved with three NEMA ratings with equivalent IP rating for other countries – NEMA 12 (IP 54) versions for most control panels, NEMA 3R (IP14) for outside use, and NEMA 4-4X (IP66) for corrosive atmospheres.  Material is normally 304 stainless bit 316L stainless steel versions also available if required.
Normally Panel Coolers are mounted on the top of control cabinets but if there is no room, side mount systems are available.   A Thermostat and Solenoid valve package or Electronic Control System will turn the Panel Cooler on or off as required saving compressed air.  In very dirty environments, where a small amount of compressed flow is desired in the enclosure for purging (to keep out a dirty environment) and optional ByPass System is available.

Dimensions

Dimensions

mini cabinet cooler dimensions
medium cabinet cooler dimensions
Seleção

Seleção

Panel Coolers, Panel Cooler, Panel Air Conditioner, Cabinet Enclosure Cooler, Electrical Panel Air Conditioners, Cabinet Cooling Solution, Cooler Master Cabinet, Panel Air Conditioner, Adjustable Thermostat, Electrical Panel Coolers, How to Cool Electrical Enclosures, Electronic Temperature ControlCabinet enclosure coolers come with a 5 micron filter with an automatic drain (except for the 316L stainless steel units) for the compressed air supply to insure clean, dry air and an air distribution kit to circulate the cold air inside the enclosure for even cooling.

Cabinet enclosure coolers are available with or without thermostat control.

When constant cooling and a constant positive purge is required we recommend the continuous operating version without the thermostat and solenoid valve. The cooling effect can be controlled by adding a regulator in line to reduce pressure for reduced cooling when it is not required and to conserve energy.

Systems utilizing a thermostat and solenoid valve saves air by activating the air conditioner only when the internal temperature reaches a critical level. The adjustable thermostat is factory set at 95°F but can be readjusted on site.

Thermostat and solenoid valve systems are recommended where the heat load can fluctuate (such as for frequency drives) and where a continual purge is not required. The thermostat and solenoid “package” can also be added at a later date to a continuous system. An Electronic Thermostat System is also available replacing the thermostat and solenoid valve with a control box to “set” the temperature (ELC System).

If mounting cannot be on the top of the control panel an optional side mount is available (except or the 316L stainless units). Panel Coolers must be mounted vertical either at the top or at the side using the side mount.

Contact Nex Flow™ for assistance in sizing cabinet enclosure cooler – Frigid-X series. See Below for Sizing Specifications

MODEL NO. VERSION BTU/Hr. cooling*(WATTS) dBA at 80 PSIG (5.5 bar)
61004A NEMA Type 12 (IP-54) Continuous Operation 290 (85) 64
61008A NEMA Type 12 (IP-54) Continuous Operation 580 (170) 66
61015A NEMA Type 12 (IP-54) Continuous Operation 1100 (322) 72
61025A NEMA Type 12 (IP-54) Continuous Operation 1800 (527) 73
61030A NEMA Type 12 (IP-54) Continuous Operation 2100 (615) 74
61040A NEMA Type 12 (IP-54) Continuous Operation 2900 (849) 76
63004A NEMA Type 12 (IP-54) Continuous Operation 290 (85) 64
63008A NEMA Type 12 (IP-54) on-off control 580 (170) 66
63015A NEMA Type 12 (IP-54) on-off control 1100 (322) 72
63025A NEMA Type 12 (IP-54) on-off control 1800 (527) 73
63030A NEMA Type 12 (IP-54) on-off control 2100 (615) 74
63040A NEMA Type 12 (IP-54) on-off control 2900 (849) 76
61004R NEMA Type 3R (IP14) Continuous Operation 290 (85) 64
61008R NEMA Type 3R (IP-14) Continuous Operation 580 (170) 66
61015R NEMA Type 3R (IP-14) Continuous Operation 1100 (322) 72
61025R NEMA Type 3R (IP-14) Continuous Operation 1800 (527) 73
61030R NEMA Type 3R (IP-14) Continuous Operation 2100 (615) 74
61040R NEMA Type 3R (IP-14) Continuous Operation 2900 (849) 76
63004R NEMA Type 3R (IP-14) on-off control 290 (85) 64
63008R NEMA Type 3R (IP-14) on-off control 580 (170)) 66
63015R NEMA Type 3R (IP-14) on-off control 1100 (322) 72
63025R NEMA Type 3R (IP-14) on-off control 21800 (527) 73
63030R NEMA Type 3R (IP-14) on-off control 2100 (615) 74
63040R NEMA Type 3R (IP-14) on-off control 2900 (849) 76
61104X NEMA Type 4-4X (IP-66) Continuous Operation 290 (85) 64
61108X NEMA Type 4-4X (IP-66) Continuous Operation 580 (170) 66
61115X NEMA Type 4-4X (IP-66) Continuous Operation 1100 (322) 72
61125X NEMA Type 4-4X (IP-66) Continuous Operation 1800 (527) 73
61130X NEMA Type 4-4X (IP-66) Continuous Operation 2100 (615) 74
61140X NEMA Type 4-4X (IP-66) Continuous Operation 2900 (849) 76
63104X NEMA type 4-4X (IP-66) on-off control 290 (85) 64
63108X NEMA Type 4-4X (IP-66) on-off control 580 (170)) 66
63115X NEMA Type 4-4X (IP-66) on-off control 1100 (322) 72
63125X NEMA Type 4-4X (IP-66) on-off control 21800 (527) 73
63130X NEMA Type 4-4X (IP-66) on-off control 2100 (615) 74
63140X NEMA Type 4-4X (IP-66) on-off control 2900 (849) 76
60115X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 1100 (322) 72
60125X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 21800 (527) 73
60130X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 2100 (615) 74
60140X-316L 316 L Stainless Steel NEMA Type 4-4X (IP-66) on-off control (customer supplies own filter)** 2900 (849) 76

** In 316 environments customers will normally have special filtration systems  already in place.

*Cooling effect based on 95°F temperature inside cabinet, 100 PSIG (6.9 BAR) compressor inlet pressure, and 70ºF (21ºC) inlet temperature.

BTU/hr. figures rounded to nearest 100 BTU/hr (1 WATT).

All Continuous Operation models include the cooling unit, filter with auto drain and cold air distribution kit.

All On-Off control units include the cooling unit, filter with auto drain, cold air distribution kit, solenoid valve and thermostat.

Calculating Heat Load

Calculating Head Load

Total heat load consists of the heat transfer from outside your panel and from the heat dissipated inside the control unit.

Useful terms and conversions:

1 BTU/hr = 0.293 watts
1 BTU/hr – 0.000393 horsepower
1 Watt = 3.415 BTU/hr
1 horsepower = 2544 BTU/hr
1 Watt = 0.00134 horsepower
1 Square Foot = 0.0929 square meters
1 Square Meter = 10.76 square foot

Typical fan capacity:

4″ fan: 100 CFM (2832 LPM)
6″ fan: 220 CFM (6230 LPM)
8″ fan: 340 CFM (9628 LPM)
10″ fan 550 CFM (15574 LPM)

BTU/hr. cooling effect from fan 1.08 x (temp. inside panel in °F – temp. outside panel in degrees F) x CFM.

Watts cooling effect from fan: 0.16 x (temp. inside panel in °C – temp. outside panel in degrees C) x LPM.

Calculating BTU/hr. or Watts:

  1. Determine the heat generated inside the enclosure. Approximations may be necessary. For example, if you know the power generated inside the unit, assume 10% of the energy is dissipated as heat.
  2. For heat transfer from the outside, calculate the area exposed to the atmosphere except for the top of the control panel.
  3. Choose the internal temperature you wish to have, and choose the temperature difference between it and the maximum external temperature expected.
  4. From the conversion table that follows, determine the BTU/hr. per square foot (or watts per square meter) for the temperature difference.
  5. Multiply the panel surface area times the BTU/hr. per square foot (or watts per square meter) to get the external heat transfer in BTU/hr or in watts.
  6. Sum the internal and external heat loads calculated.
  7. If you do not know the power used in the enclosure but you can measure temperatures, then measure the temperature difference between the outside at current temperature, and the present internal cabinet temperature.
  8. Note size and number of any external fans. Provide this information to Nex Flow™  to assist in sizing the appropriate cooling system.
Temperature Difference in °F BTU/hr./sq. ft. Temperature Difference in °C Watts/sq.m
5 1.5 3 5.2
10 3.3 6 11.3
15 5.1 9 17.6
20 7.1 12 24.4
25 9.1 15 31.4
30 11.3 18 39.5
35 13.8 21 47.7
40 16.2 24 55.6

Example:

The control panel cooler has two frequency drives totaling 10 horsepower and one module rated at 100 watts. The maximum outside temperature expected is 105°F or 40.5°C. The area of the control panel cooler exposed sides, except for the top is 42 square feet or 3.9 square meters. We want the internal temperature to be 95° or 35°C.

Total internal power is 10 hp x 746 watts/hp – 7460 plus 100 watts = 7560 watts.
Assume 10% forms heat = an internal heat load of 756 watts.

Or

Total internal power is 10 hp x 2544 BTU/hp = 25440 BTU/hr plus 100 watts x 3.415 BTU/hr/watt = 25782 BTU/hr.

Assume 10% forms heat = an internal heat load of 2578 BTU/hr.

External heat load: The temperature difference between the desired temperature and the outside is 10°F or 5.5°C. Using the conversions (and interpolating where necessary) we multiply the area by the conversion factor:

42 sq. ft x 3.3 – 139 BTU/hr or 3.9 sq. m x 10.3 = 40 watts

Total Heat Load: 756 + 40 – 796 watts or 2578 + 139 – 2717 BTU/hr.

You would use a Model 61040 for constant operation or a Model 63040 for one-off control. (Rated at 2900 BTU/hr or 849 watts).

Preços
Contate-Nos

We use cookies to give you the best online experience. By agreeing you accept the use of cookies in accordance with our cookie policy.