AJR Jet fan Installation and Operating Instructions EN
© Copyright Systemair Mfg. Inc. All rights reserved E&OE Systemair Mfg. Inc. reserves the right to alter its products without notice. This also applies to products already ordered, as long as it does not affect the previously agreed specifications.
Contents 1 1.1 1.2 2 2.1 2.2 2.3 3 4 4.1 4.2 4.3 4.4 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 8 8.1 8.2 8.3 8.4 8.5 8.6 9 9.1 9.2 9.3 9.4 9.5 10 10.1 10.2 11 11.1 11.2 11.3 11.4 11.5 11.6 12 12.1 12.2 12.3 13 14 15 16 499247 GENERAL INFORMATION.................................................. 4 NOTICE SYMBOLS.............................................................. 4 INSTRUCTION SYMBOLS.................................................... 4 IMPORTANT SAFETY INFORMATION..................
| AJR Jet Fan 1 General information 1.1 Notice Symbols Danger Direct hazard Failure to comply with this warning will lead directly to death or to serious injury. Warning Potential hazard Failure to comply with this warning may lead to death or serious injury. Caution Hazard with a low risk Failure to comply with this warning may lead to moderate injuries. Important Hazard with risk of damage to objects Failure to comply with this warning will lead to damage to objects.
AJR Jet Fan | 5 2.1 Personnel i Note: The operator is responsible for ensuring that personnel are instructed and understand the contents of the operating instructions. If something is unclear, please contact Systemair or its representative. The fan may only be used by qualified, instructed, and trained personnel. The persons must know the relevant safety directives in order to recognize and avoid risks. The individual activities and qualifications can be found in Table 1: Qualifications.
| AJR Jet Fan 4.2 Delivery Each fan leaves Systemair in proper mechanical and electrical condition. The fan should remain in the original packaging until the final delivery to the installation site. 4.2.1 Checking delivery Warning When opening the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters, etc. • Unpack the fan carefully. • Only remove the packaging shortly before assembly. • Wear protective equipment during all work in the vicinity of the fan, see 2.
AJR Jet Fan | 7 5 Description 5.1 General • The fan conveys air in an axial direction from the intake side via the electric motor to the outlet side. • The electrical connection is made through a terminal box installed on the outside of the housing. • Jet fans – also known as impulse or induction fans – support the natural flow between the supply-air and extract-air zones. They provide motion in regions with low airspeeds. 5.
| AJR Jet Fan 6 Nameplate and type key 6.1 Nameplate The following nameplate is shown as an example of formatting. 6.
AJR Jet Fan | 9 7 Installation 7.1 Safety information Warning Danger from falling fan or fan parts. • Check the surface before installation for load-bearing capacity. • Consider all static and dynamic loads when selecting hoisting equipment and fastening components. • Installation may only be carried out by adequately qualified persons, see Table 1: Qualifications • Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment.
| 7.4.1 AJR Jet Fan Air Gap Ensure that the air gap between the housing and the impeller is complied with. Table 3: Air Gaps Nominal width Housing tolerance Impeller Ø 355 +/– 1 mm 352 mm 400 +/– 1 mm 397 mm 7.4.2 Vibration dampers Important Risk of damage to the fan due to incorrect vibration dampers. • Use vibration isolators dampers suitable for the respective product weight, as needed. • A supplemental restraint shall be used to accomplish the support and restraint. 7.4.
AJR Jet Fan 8 | 11 Electrical connection 8.1 Safety information Warning Danger from electrical voltage. • Observe the 5 rules of electrical safety, see 2.3 Five rules of electrical safety • Prevent the ingress of water into the connection box. • The electrical connection must be carried out by qualified persons, see Table 1: Qualifications • Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment 8.
| AJR Jet Fan 8.5 Frequency converter (if used) Warning Risk from resonant frequencies when using frequency converters • Only operate the fan outside these speed ranges. • Pass through these speed ranges so quickly that any vibration cannot exceed the admissible resonant frequency values. • For variable-speed fans, use a permanent vibration monitor for long-term safe operation. • Observe the operating instructions of the frequency converter.
AJR Jet Fan 9 | 13 Commissioning 9.1 Safety information • Commissioning may only be carried out by adequately qualified persons, see Table 1: Qualifications • Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment 9.2 Preconditions • Installation and electrical connections have been correctly performed.
| AJR Jet Fan 10 Operation 10.1 Safety information Warning Hazard from electrical voltage or moving components. • Operation may only be carried out by adequately qualified persons, see Table 1: Qualifications • The device may only be operated by people who understand the function and risks and can act accordingly. • Abide by the system-related conditions and requirements of the system manufacturer or plant constructor. 10.
AJR Jet Fan 11.
11.3 | AJR Jet Fan Maintenance As set forth in the Limited Warranty, warranty claims can only be made if maintenance work is carried out correctly and written evidence thereof is provided. We recommend regular maintenance intervals to ensure continuous fan operation. These maintenance intervals are specified in the “Activities” table below. In addition, the operator must carry out follow-up activities such as cleaning, replacing defective components or other corrective measures.
AJR Jet Fan 11.4 | Variable speed fans Important Varying speeds may lead to increased vibrations dependent on the support structure. • Pay particular attention to damage from vibrations. • After commissioning, start with shorter maintenance intervals. • If no damage occurs, adjust the maintenance intervals up to those stated in the operating instructions. • Responsibility for gradual adaptation is with the system operator/installer. 11.
15 | AJR Jet Fan Commissioning Report Please keep the completed commissioning report in a safe place. As set forth in the Limited Warranty, in the case of a warranty claim, this report can be requested by Systemair. Fan Description: Article no.: Manufacturing order no.: Installer Company: Contact person: Company address: Tel. no.: Email: Operator (Place of installation) Company: Contact person: Company address: Tel. no.
AJR Jet Fan Frequency [Hz]: | 19 Power [kW]: Fan impeller speed [rpm]: Measured data at commissioning Voltage [V]: Temp. of transported air [C]: Current l1 [A]: Impeller speed [rpm]: Current L2 [A] Air volume [CFM]: Current L3 [A]: Differential pressure [in.wg.
Systemair reserves the rights to alter their products without notice. This also applies to products already ordered, as long as it does not affect the previously agreed specifications. Systemair Inc. • August, 2021 • Art.
