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provided by us, remain the property of Lennox and must not be used (except in operation of All FLEXY II Units are compliant with the PED directive /CE. IOM – FLEXY – -E – Page 1. CONTENTS. The present manual applies to the following ROOFTOP versions: FCA 85 – FCA – FCA – FCA – FCA. Part of the FLEXY range, the FLEXY FX is an air/air heat pump rooftop optimising applications .. model and as such LENNOX has enhanced the FLEXY™ heat.

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Using table 1 determine the pressure available P and the corresponding dynamic motor pulley actual diameter. Go to various notices. Go to room temperature chart. This manual also for: The new range offers cooling capacities up to kW, compared with an upper limit of about kW previously.

Item 8 on KP 17 indicates that the filters must be changed. Ken Sharpe looks at the growing pressure on HFC refrigerants and how one manufacturer has developed a concept that lennpx the issues for large systems. Underfloor heating meets new Building Regulat Control ; Hot Settings: Room relative humidity sensor missing or faulty Outside air temperature sensor faulty Outside relative humidity sensor faulty Supply Air temperature sensor faulty Temperature sensor on cold flexyy loop faulty Temperature sensor on condenser water outlet faulty.

The compatibility of the value felxy the day of the month is not checked when lennkx is entered. Please enable JavaScript to view the comments powered by Disqus. This site contains archived content from the journal, plus web-specific content. While standard Flexy II units use belt-driven centrifugal fans, Lennox also offers units with high-efficiency plug fans with variable-speed control to enable air volume to be matched to requirements.


Roof-top air conditioners are extensively used throughout Europe as an integrated solution for cooling and heating certain types of building.

Lennox advances the art of rooftop air conditioners – Modern Building Services

Water leak If the contact of the water leak detection card is closed for more than 30 seconds, the safety system is clexy. Rooftop air conditioners spend much more time at part load than at full load, so improving refrigeration part-load efficiency is important to increasing overall efficiency and reducing energy use of the units. Vacuum clean or blow the dirt.

Control ; Humidification Settings: Before adjusting the tension, make sure that the pulleys are correctly aligned. BMS Operating status Cooling mode setting operation.

It is fitted with a AT fan which curve is shown on page xxx and a 2. Figure 19 Remove the hub and the pulley by hand without damaging the machine.

Above all, ensure that all the adjustable returns are facing outward 1 – figure 6. To reduce fan energy consumption, Lennox has reduced resistance to airflow within the new units and also benefited from improvements in fan and motor technology. The energy required to heat or cool incoming fresh air has also been considered with a damper system to accurately control the amount drawn in to the building.


By pressing ‘print’ button you will print only current page. The low power requirements of LEDs means that power and control can be delivered using the same cabling opens up huge new possibilities for lighting — flexxy John Niebel of amBX explains.

However, the energy used for mechanical cooling is but a small part of total annual energy consumption.

Lennox cannot and does not require any configuration. Measure the absorbed amps If the absorbed amps are greater than the rated values, the ventilation system has a lower pressure drop than anticipated.

Temperature sensors for supply, return and outdoor air provide the data for calculating the amount of fresh air being introduced so that the damper position can be adjusted as required.

Instruction Description Day of the week of start of setting. They are usually turned inside-out for transport.

Lennox FCA 60 Installation, Operation And Maintenance Manual

Page of Go. Designed for low weight and energy-efficient operation, the Lennox Flexy II range of rooftop air conditioners makes extensive use of aluminium in its construction. With the development of a new range of rooftop air conditioning units, Lennox has attempted to redefine standards for energy efficiency. A Guide to the 18th Edition of the Wiring Reg