EC Motor Retrofit Reduces Guestroom Fan Coil Energy Usage up to 80% Energy reduction reflects the savings per motor (guest room) annually. Annual savings calculation is based on 8000 operating hours and price per kWh. Electronic Commutation Motor:  PSC Motor Upgrade to EC Motor EC motors have electronic commutation systems rather than mechanical commutators and brushes. EC motors provide higher efficiency, have less susceptibility to mechanical wear, generate less noise, generate less heat, and have full variable speed. EC Motors are highly efficient at full and part load with  ECM vs PSC Motors case studies showing efficiency up to 80%. EC Motor Retrofit and Fan Coil Re-commissioning AirRevive combines its custom fan coil refurbishment process with EC motor (ECM) installations to re-commission hotel guest room fan coil units. Utilizing EC motors, the airflow is programmed specifically to the fan coil unit’s manufacturer’s specifications.

The result is a re-commissioned unit. AirRevive’s EC motor retrofit service extends the life of the fan coil unit and brings its operating performance to maximum operating efficiency. A re-commissioned unit with proper airflow and lower coil temperature uses less energy and enhances heat transfer.  consumer reports carrier ac unitsThe hotel guest room is noticeably more comfortable.air handling units marine Fan coil refurbishment and EC motor upgrades are available for all past and present fan coil unit models up to thirty-five years old.ac unit tubing Click to view a case study on a 1984 building with 84% of the units under manufacturer’s specifications for airflow and 33% with no airflow on low setting. EC Motor Retrofit Best Practices

EC motors torque and RPMs are programmed to a controller.  Once programmed the controller maintains constant functioning. Changing the motors only without AirRevive refurbishment is not the best practice to re-commission the fan coil units because the coil is not rejuvenated and performing to its maximum efficiency. It is important to note that if the coils are not brought back to uniform performance before installing EC motors then the EC motor program will not be optimized.  It is the best practice to have all the buildings fan coil units clean, working uniformly and optimized before programming an EC motor. If not, the roll out across the building will not be consistent. There will be dirty coils and clean coils in the building that will produce different torque on the EC motor program. AirRevive conducted a case study comparing a fan coil unit’s performance when an EC motor was retrofit into a unit with an impacted coil vs. an AirRevive rejuvenated coil. Findings included reduced watts reduced by 38% and the motor’s RPM lowered by 33% when the motor was retrofit into a unit with a rejuvenated coil.

Click to view the AirRevive best practices case study. The EC motors are torque sensitive.  The EC motor on the dirty coil requires a higher RPM to get the motor to perform according to its program, i.e. 1580 RPMs in the case study. The motor worked harder to overcome the dirty coil. To maintain constant RPM, the EC motor senses the resistance and automatically increases torque. The EC motor adjusts torque to maintain constant velocity.  This increases power consumption. AirRevive’s refurbishment process results in coil and supply temperature reduction and optimized airflow. After refurbishment the EC motor is programmed to the coil working at maximum operating efficiency: coil temperature is lowered. EC Motor Upgrade Rebates and Incentives In addition to lowering energy bills,  there are a variety of rebates and incentive programs offered for  EC motor upgrades. Click to view rebate and incentive details. AirRevive assists customers in rebate administration.

AirRevive’s EC motor retrofit service is available in hotels across the United States, Hawaii, Canada, and the Caribbean. Contact us today for a free mock up. EC Motors and Building Sustainability Fan coils are often overlooked during building sustainability projects because of their fractional horsepower and low power consumption. Upgrading PSC motors to EC motors, however, allows cost effective energy savings satisfying green building initiatives. AirRevive’s EC motor retrofit projects typically result in reducing guest room fan coil energy usage by up to 80%. Click here for more information on energy efficient incentives and rebates by state. A ceiling mounted fan coil unit (FCU) is a simple device consisting of a heating or cooling coil and fan. It is part of an HVAC system found in residential, commercial, and industrial buildings. Connected to ductwork is used to control the temperature in the space where it is installed. Galvanized steel casing with thick closed cell foal insulation guarantees thermal and acoustic isolation.

Highly efficient aluminum cooling coils are specifically designed for chilled water applications. High efficiency blower providing no overloads, statically and dynamically balanced with 3-speed fan motors Compact design for all types of ceilings FVS Fan Coil Units are available in 5 sizes equipped in 2 to 4 fans depending on input parameters needed. Air Flow at 0,2" wg Air Flow at 0,0" wg A concealed fan coil unit will typically be installed within an accessible ceiling void or services zone especially in objects such as: Compact air conditioning Aquaris KWBFields of application:The compact air conditioning module Aquaris Silent has been designed for installation in suspended corridor ceilings for the air conditioning of office rooms. The arrangement of supply air and return air grilles on one side of the room creates a rolling motion with an optimum air flow through the room.Function:Supply air is delivered into the room at an angle from one side.

The developing room roll enables optimum room flow and fresh supply air is equally distributed in the room. A stable air jet is guaranteed even at a temperature difference < 10 K thus ensuring no air dumping into the occupied zone. The adjustable nozzles allow the adjustment of a divergent air flow and thus the induction can be increased which results in a very good reduction in temperature and speed. The high induction causes an even temperature distribution in heating mode. Referencesall ReferencesFan Coil Unit AQUARIS SILENTFields of application:The fan coil unit of the AQUARIS SILENT family can be used for cooling and heating. They are particularly suitable in connection with heat pumps and low energy heating systems that work with low supply temperatures during heating or with high supply temperatures during cooling.The small height of the AQUARIS SILENT allow the mounting in suspended ceilings or ceiling panelling. The mounting on or in walls or floors is possible without problem even in case of restricted space.

Due to these flexible installation possibilities, the AQUARIS SILENT fan coil units is also suitable for the renovation or the extension of existing systems. The optional device housing also allows the installation on a wall close to the ground. All devices can be combined with the well-known air diffusers from SCHAKO.Function:Fan coil units producing air-conditioned air using hot or cold water which is fed into a room are an important part of decentralised air-conditioning installations. They can perform various functions, depending on the season of the year, the characteristic values of the air flowing through the air-conditioner, and the components installed. Every AQUARIS SILENT fan coil unit is an independent system with its own heat exchanger, filter, fan and control unit. There is no direct air exchange between the different rooms in a building by means of the air-conditioning system. Therefore, each room remains its individual comfort area. This characteristic is particularly important for hotel, hospital and office rooms where the mixing of the air may be a problem.

Installation and operating instructions CE declaration of conformity Referencesall ReferencesFan Coil Unit NBSFields of application:The compact dimensions and low mounting height of the fan coil unit type NBS 100/150 makes it a perfect solution for horizontal mounting in false ceilings. They are particularly suitable for small decentralised installations, in which higher cooling capacities and generation of pressure are required than those that can be achieved with a standard fan coil unit. Moreover, the fan coil unit NBS has a higher capacity than a customary fan coil unit. Function:Fan coil units constitute a component of air-conditioning installations producing air-conditioned air using hot or cold water which is fed into a room in a building. Each air-conditioning unit can be considered an independent system, fitted with a heat exchanger, filter, fan, condensation water pan and, optionally, a controller. In addition to the advantages of autonomy, the air-conditioning devices also prevent air from circulating between individual rooms.