Summary of Contents for Swiss Rotors SF Series
- Page 1 Energy Recovery Wheel OPERATION AND MAINTENANCE VERSION 3.0.0 www.swissrotors.com...
-
Page 2: Table Of Contents
Please read the following documentation carefully before performing installation, maintenance and operating of Swiss Rotors rotary heat exchangers motors. In case of doubts contact Swiss Rotors offi cial support. This manual must only be used by a qualifi ed installer/service technician. -
Page 3: Please Read Before Proceeding
PLEASE READ BEFORE PROCEEDING Installer – Read all instructions, including this manual, before installing. Perform steps in the order given. When calling or writing about the recovery wheel – Please have the model and serial number from the rating plate. Any claims for damage or shortage in shipment must be fi... -
Page 4: Introduction
Swiss Rotors produces two series of rotary heat exchangers in two standard widths of energy recovery wheels: SF series with 100 mm and RT with 200 mm depth recovery wheel. This manual applies to the SF series of heat exchangers. Please be aware that versions may differ from each other by their components, parts location, dimensions, auxiliary equipment and motor types. - Page 5 Figure 2 Rotary Heat Exchanger construction...
- Page 6 Table 2.1. Swiss Rotors SF, RT series rotary heat exchanger with 100 and 200mm width energy recovery wheel Wheel hub of an heat exchangers are made of extruded aluminium, diameter of 150 mm or 250 mm respectively, depending on an overall diameter of energy recovery wheel.
-
Page 7: Serial Number Identifi Cation
Wheel Type Motor Wheel Diameter [mm] Total 2 Nm – 55 W 500 - 1000 (Sorption Wheel) 4 Nm – 110 W 1100 - 1700 8 Nm – 260 W 1800 - 2400 Non-Hygroscopic & 2 Nm – 55 W 500 –... - Page 8 Figure 2.5. Additional labels on SF Rotary Heat Exchangers...
-
Page 9: Transportation
Pay attention to whether the shipment is delivered on a pallet or it has been dismantled without permission. • Swiss Rotors prepare shipments using professional labels and transport descriptions. If you see that the shipping company did not followed the instructions given on the package - refuse to accept the parcel. •... -
Page 10: Lifting
Extreme precautions should be taken. Swiss Rotors wheel are equipped with the special lifting straps (Fig. 5) attached on the both Figure 3.3 Transportation straps sides of the casing. -
Page 11: Installation
Swiss Rotors heat wheels are designed to work only and exclusively inside the air handling unit. Rotary Heat Exchangers should not be forced to work outside of the AHU or other closed systems. Their desired work environment is the interior of the ventilation devices. - Page 12 Motors are assembled, pre-set- it is forbidden to interfere in the assembly of the motor and gear without previous arrangements with the manufacturer or Swiss Rotors service support. All motors are pre-set for desired constant RPM of wheel. If rotation control is required, either use EC motor with integrated rotation controls, or use AC motors with external controller or frequency inverter.
-
Page 13: Purge Sector Installation
4.3 Purge Sector installation Swiss Rotors energy recovery wheel comes with two additional purge sectors. Their task is to exclude exhaust air carry over into supply air stream which occurs during rotation of the wheel matrix. It is an optional element and may not be needed based on application. - Page 14 Figure 4.2 Unscrewing the screws in brush plate 2. Install the purge sector and match its cutaways with the mounting holes on the profi le. They should line up. Position the sector so that the brush is in gentle contact with the surface of the rotary wheel.
-
Page 15: Profi Le Adapter Installation
(see appropriate Maintenance chapter). If the exchanger was transported and stored in a proper condition, Swiss Rotors products comes fully calibrated and assembled in a way which does not require any additional installation tasks from the user. All components of our products are brand new and should not wear signs of usage or mechanical damage. -
Page 16: Start-Up Checklist
Turn of the whole HVAC system before performing any servicing operations. 6.2 Energy Recovery Wheel Swiss Rotors strongly recommend checking the condition of individual components according to the time table provided in this chapter. Technical control is obliged to the user. Properly frequent checks allow early detection of irregularities in the system and may help avoiding serious damages resulting from various random factors. - Page 17 Verify Wheel of the exchanger spins smoothly without making unwanted noises or rubbing against internal parts. Wheel of the exchanger is free of mechanical damage. There are no traces of rust. Wheel of the exchanger is not excessively dirty or clogged. Airfl ow is not blocked by impurities. Wheel of the exchanger is parallel to the surface of the casing walls and do not tilt in any direction.
-
Page 18: Energy Wheel Maintenance & Cleaning
Painting shops, processing of harmful materials, laboratories working with toxic compounds Swiss Rotors recovery wheels cannot be used in highly polluted areas including kitchens: use may cause an explosion. Expose to air containing oil, aerosols, VOCs will cause the contamination to build upon the energy wheel surface causing clogging of the air channels. - Page 19 If segmented drive belt becomes too loose it is necessary to pull out few segment modules (Fig. 10) of the belt and shorten their overall length to desired amount in order to achieve optimal tension. Correct tension should prevent ability to insert anything underneath the belt on the entire length of the tangent between the belt and the wheel.
- Page 20 Flat side of the belt (the one without the connecting pins protruding outwards) needs to be in direct con- tact with the rotary wheel along the entire circumference of their contact to drive the heat exchanger cor- rectly. The opposite side of the belt should be in contact with the inner surface/grove of the pulley wheel of the motor.
-
Page 21: Sealing System
Figure 6.9 Correctly fi tted sealing of the Rotary Heat Exchanger. Swiss Rotors wheels are equipped with durable sealings which should last lifespan of the entire product if properly used and maintained. If sealings are damaged, please contact our service immediately. A damaged seal may cause effi... -
Page 22: Brush Plate
Figure 6.11 Cut the old sealing. Figure 6.12 Use tacker to staple the Figure 6.13 Put the aluminium new sealing all around wheel circum- reinforced tape at the top of new ference. sealing and wheel surface. Place the new sealing so the protruding amount of material will cover the gap between the energy recovery wheel and casing wall. -
Page 23: Frost Control
Fig. 6.14 present the correctly assembled pulley wheel inside the Rotary Heat Exchanger. Note the direction in which the pulley wheel is installed. Side of the pulley wheel with the locking screw need to face in the direction of the casing. The correct mounting distance of the pulley should be exactly 1,5mm between surface of the pulley wheel and the protruding head of the motor holder bolt (See Fig. - Page 24 Moisture transfer in sensible wheels occurs only in case of exhaust air being cooled down and reach its dew point. Within such conditions, condensate will start to form up on the surface of the rotary wheel in the form of thin fi lm layer. Due to rotary wheel spinning, condensate created on the exhaust site of the air channel will move towards supply and will be evaporated.
- Page 25 Figure 7.4 Sensible wheel operation with excess water which turns into frost - example. Figure 7.5 Sorption wheel operation with excess water which turns into frost - example.
-
Page 26: Spare Parts
8. SPARE PARTS Based on the serial number and model name as indicated on a nameplate, Swiss Rotors service representative is able to choose exact spare part for your product. Assortment includes motor, gearbox, drive belt, and sealings. Note that non- contact sealings on wheel peripheries, if required to be changed, could be replaced with brush seal.
Need help?
Do you have a question about the SF Series and is the answer not in the manual?
Questions and answers