Smoke Master JMHT HATCH Installation, operation and maintenance 10/2010

Transcription

1 Smoke Master JMHT HATCH Installation, operation and maintenance 10/2010

2 INSTALLATION, OPERATION AND MAINTENANCE Contents Table of contents...2 Safety aspects...3 System overview...3 Installation...4 Electrical connections...5 Testing and inspections...6 Maintenance of the fan...7 Fläkt Woods FIFLO EN

3 Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE Safety aspects Electrical installations should only be carried out by a suitably qualified electrician. The hatch should start opening 30s before the fan starts running. This should be enabled by a time delay in the control system. Before any maintenance work is carried out on the fan unit, the fan and the hatch opening motors should be de-energized using the safety switch. If the fan unit is installed in a place where it may cause danger, access to the unit should be prevented. The installer and the operator are jointly responsible for ensuring that the installation complies with all local rules and regulations. To allow service and maintenance work, there must be enough space around the device for the use of stairs, ladders and walkways that meet the requirements for roof safety products. Fläkt Woods does not accept liability for any other components connected to the system, such as smoke detectors, etc. System overview JMHT Hatch from the SMOKE MASTER range of fire safety products is a roof-mounted unit for mechanical smoke exhaust. It combines a smoke hatch and a smoke extract fan and is delivered ready for roof mounting, provided with electrical components and wiring as ordered. JMHT Hatch is designed for smoke exhaust only and has a temperature designation of 400 C /2 hours. The product is not suitable for continuous air extraction. The smoke hatch is opened by two linear motors (230V/single phase or 24V DC) that are designed to exceed the sum of hatch, snow and wind loads. The recommended starting method for the fan is direct-online starting 30s after the start of the linear motors. This is to ensure that the hatch is open enough to allow smoke exhaust at the specified flow rate when the fan reaches full speed. Fläkt Woods FIFLO EN

4 INSTALLATION, OPERATION AND MAINTENANCE Installation Roof mounting Method 1 Method 2 1. JMHT HATCH smoke hatch 2. JMHT fan 3. Safety mesh or jointing collar (as ordered) 4. Motorised opener (2 x linear motor 230V AC or 24V DC) 5. Flashing (optional) 6. Compliant waterproof protection of the penetration 7. Attachment to the roof structure with angle brackets (method 1) or directly by the unit s flanged base (method 2) 8. Roof 9. Penetration, at least the size of the fan in diameter Angle brackets should be fixed to the unit s base with a minimum of four 5x40 screws and to the roof structure with a minimum of four screws as follows: - 4 to 6 HILTI HPS-1 screws 6/5x30 for concrete - 4 to 6 wood screws 6x50 for wood - 4 to 6 self-drilling screws 6.3x25 for steel sheet Fläkt Woods FIFLO EN

5 Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE Electrical connections The product is delivered with the wiring for the linear motors on the outside. This is to make it possible to open the hatch with any suitable power supply during installation. Note! Check the label on the product for the supply voltage required by the linear motors. Wiring diagram This cable is factory-installed. This cable shall be installed on site. LINEAR MOTOR LINEAR MOTOR SMOKE EXTRACT FAN LIMIT SWITCH optional SAFETY SWITCH 3x400 VAC, 50 Hz 1x230 VAC, 50 Hz or 24 VDC Technical data Fan motor Linear motors Code SMHA SMHA SMHA SMHA SMHA SMHA SMHA SMHA SMHA SMHA Power kw 1,7 4,8 3,6 4,8 6,6 9,0 6,6 9,0 11,0 18,0 Voltage Current A 3,7 9,1 7,0 9,2 12,6 17,0 12,6 17,0 21,0 35,0 Speed Code Power Voltage Current Speed Force SMHA-aa-bbb-c-1-e-f 2x28VA 1x230VAC, 50Hz - 10 m/s 2x1000N SMHA-aa-bbb-c-2-e-f - 24VDC 2x1,2A 8-17 m/s 2x1000N Limit switch (optional) Volt-free contact NO/NC 230VAC 16A Fläkt Woods FIFLO EN

6 INSTALLATION, OPERATION AND MAINTENANCE Testing and inspections Initial inspection Make sure the linear motors can travel without trouble. Check that the starting delay for the fan is about 30s. Make sure the fan turns in the right direction (blowing out). Maintenance of the fan Before fan maintenance, the fan and the motors must be de-energized and secured against accidental start up. *Fan maintenance is detailed in the attached instructions for HT series Aerofoil fans. Half-yearly inspections Carry out the measures described under Initial inspection. Check that status indicators, such as indicator lights, are working properly. Check that labels, signs and trigger diagrams are visible. Check by eye that all hatches and devices seem to be in working order. Check the measures to be carried out on the fan.* Annual inspections Carry out the measures described under Initial inspection. Check that status indicators, such as indicator lights, are working properly. Check that labels, signs and trigger diagrams are visible. Check the appropriateness of the service book and other documentation, and make a record of the inspection. Check that the hatches of the fan unit open without trouble. Remove any obstructions. Check for wear and corrosion, and repair any such damage. On the hatch opening motors, the following should be checked: - Security of motor mountings - Protection against moisture - Operation (testing) and electrical connections of the motors Also check that the hinges of the hatches are properly secured, the device is clean and the seals are tight. Replace seals as necessary. Fläkt Woods FIFLO EN

7 Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE Maintenance of the fan Motorised opener (linear motor, 2 pcs) 2. Safety mesh 3. JMHT fan 3.1 Impeller 3.2 Motor 4. Safety mesh or jointing collar Removing the fan from JMHT Hatch for maintenance. Fan maintenance is to be carried out in accordance with specific instructions for the operation and maintenance of the JMHT fan. Maintenance: SMHA-05, SMHA-08, SMHA SMHA On-roof maintenance through the hatch: 1. Ensure that the fan (2) and the linear motors (1) are de-energized (and secured if possible). 2. Remove the safety mesh (3). 3. Release the impeller from the shaft by undoing the retaining bolt at the end of the shaft. 4. Remove the impeller from the shaft. Take care not to drop the key. 5. Lift up the rotor of the motor, and perform bearing maintenance. SMHA In this type of motor, two bolts secure the rotor to the end plate at the free end of the motor. To be able to carry out the maintenance as described above, the bolts should be undone from below the motor, which is usually difficult. It is therefore best to unbolt and lift out the entire fan for maintenance. Fläkt Woods FIFLO EN

8 We Bring Air to Life Fläkt Woods is a global leader in air management. We specialise in the design and manufacture of a wide rande of air climate and air movement solutions. And our collective experience is unrivalled. Our constant aim is to provide systems that precisely deliver required functions and performance, as well as maximise energy efficiency. Solutions for all your air climate and air movement needs Fläkt Woods is providing solutions for ventilation and air climate for buildings as well as fan solutions for industry and infrastructure. Air Handling Units (AHUs) Modular, compact and small AHU units. Designed to ensure optimisation of indoor air quality, operational performance and service life. Air Terminal Devices and Ducts Supply and exhaust diffusers and valves for installation on walls, ceiling or floor are all included in our large range and fit all types of applications. Chilled Beams Active induction beams for ventilation, cooling and heating, and passive convection beams for cooling. For suspended or flush-mounted ceiling installation - and multi-service configuration. With unique Comfort Control and Flow Pattern Control features. Residential ventilation A complete range of products for residential ventilation. Consists of ventilation units, exhaust air fans and cooker hoods designed to optimise indoor comfort and save energy. Fans Advanced axial, centrifugal and boxed fans for general and specialist applications. Comprehensive range including high temperature and ATEX compliant options. Engineered for energy efficiency and minimised life cycle cost. Chillers Air-cooled and water-cooled chillers with cooling capacity up to 1800 kw. Designed to minimise annual energy consumption in all types of buildings. Controls and drives Variable speed drives and control systems, all tested to ensure total compatibility with our products. Specialist team can advise on energy saving and overall system integration. Smoke Master JMHT HATCH / EN / FIFLO / / Brandstairs #15366 Fläkt Woods Oy Kalevantie 39, FI Turku, FINLAND Tel