MAINTENANCE OF SMOKE EXTRACTION MOTORS

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1 4413 en / b MAINTENANCE OF SMOKE EXTRACTION MOTORS Good practice guide

3 Maintenance of smoke extraction motors Good practice guide The Maintenance or Repair of smoke extraction motors maintains these motors at their original safety level, because correct operation of smoke extraction motors is VITAL 3

4 MOTORS CONCERNED SAFETY/SMOKE EXTRACTION Power supply Ranges Power ratings Frame size AC / 3 ph LSHT 0,55 to 132 kw 80 to 315 mm AC / 3 ph FLSHT 0,18 to 500 kw 80 to 450 mm COMPLIANCE with EUROPEAN STANDARD EN The reference standard in the smoke extraction world INTERNATIONAL STANDARD: ISO TEMPERATURE LEVELS AND MINIMUM OPERATING TIME LSHT range 200 C C C C 120 Manufactured by GP & Mansle FLSHT range 400 C 120 Manufactured by GP, Mansle & CEB WHY USE SMOKE EXTRACTION MOTORS? Smoke and heat extraction systems create a smoke-free layer above the ground by clearing the smoke and thus improve the conditions for safe evacuation and/or rescue of people and animals, and allow the fire to be attacked while still in its early stages. They also remove the hot gases released by the fire in its full expansion phase. - Their efficacy is well proven in assisting the evacuation of occupants of buildings, limiting fire damage by preventing the accumulation of smoke, making it easier to attack the fire, reducing the temperature of roofs and preventing the fire spreading sideways. -.To be sure of these beneficial effects, it is essential that smoke and heat extraction equipment operates reliably each time it is used during its service life on a site. 4

5 Maintenance of smoke extraction motors Good practice guide REWINDING SMOKE EXTRACTION MOTORS Components such as insulation, varnish, wires, are components with specific characteristics and must conform to the motor originally approved by an official laboratory, and certified by an approved body. The impregnation system is special. REWINDING IS PROHIBITED Leroy-Somer cannot guarantee the motor smoke extraction function after rewinding; this becomes the responsibility of the person carrying out the repair. A DAMAGED STATOR MUST THEREFORE BE REPLACED WITH A NEW ONE «DUAL PURPOSE» MOTOR Option of adding a PTC sensor designed to protect the motor at 140 (when operating in comfort duty) WARNING! The sensors must be deactivated when the smoke extraction function is used. An automatic shut-off system should therefore be provided. 5

6 MAINTENANCE OF SMOKE EXTRACTION MOTORS «Dual purpose» motors REGULAR SERVICE INSPECTION EVERY 6 MONTHS - Check the insulation resistance, > 50 MΩ at 500 V DC If the value is lower, dry the stator in an oven and, if the fault persists, change the stator - Open the drain holes to drain any condensation water Don t forget to close them again to guarantee the degree of motor protection - Make sure that the motor is clean No greasy deposits and/or dust in order to ensure optimum motor cooling - Check the state of the power supply cables - Check that any accessories are fixed securely REGULAR SERVICE INSPECTION EVERY 12 MONTHS - Replace the seals on IP65 & IP66 motors Note: each time the IP65 & IP66 motors are dismantled, replace the seals on the shaftways, the shield spigots, the terminal box cover and body, and the cable gland or its support with new seals with the same characteristics after cleaning all parts. The seals on the shaftways should be greased with the same type of grease as the bearings (see reference specified on the nameplate) or ENS (NIPPON OIL), GHY72 (KLUBER) or KRYTOX GPL 226 (DUPONT de NEMOURS) grease. REGULAR SERVICE INSPECTION - After 20,000 hours of operation or after 5 years of installation: replace the stator and antifriction bearings (or the whole motor) - For motors fitted with bearings with grease nipples: top up with grease if necessary (Quantity, Quality and Frequency indicated on the nameplate) - In the case of special applications (intermittent duty, humid atmosphere, etc) regrease the bearings at least every 2 years 6

7 Maintenance of smoke extraction motors Good practice guide MAINTENANCE OF SMOKE EXTRACTION MOTORS Motors used only in «Smoke extraction» emergencies (Stand-by) REGULAR SERVICE INSPECTION Run the motors once a month for one hour for motors in a horizontal position and 15 minutes once a fortnight for motors operating in a vertical position. - Check the insulation resistance every 6 months, > 50 MΩ at 500 V DC. If the value is lower, dry the stator in an oven and, if the fault persists, change the stator. - Open the drain holes every 6 months to drain any condensation water. Don t forget to close them again to guarantee the degree of motor protection. - Make sure that the motor is clean (every 6 months). No greasy deposits and/or dust in order to ensure optimum motor cooling. - Check the state of the power supply cables (every 6 months). - Check that any accessories are fixed securely (every 6 months). - For motors fitted with bearings with grease nipples, top up with grease if necessary (Quantity, Quality and Frequency indicated on the nameplate) 7

CHECKS If maintenance involves dismantling, a dimensional and geometric check of the «bearing cage» and «stator spigot» diameters should be performed (see manufacturer data) TIGHTENING THE SCREWS AND

8 CHECKS If maintenance involves dismantling, a dimensional and geometric check of the «bearing cage» and «stator spigot» diameters should be performed (see manufacturer data) TIGHTENING THE SCREWS AND TIE RODS Respecter scrupuleusement les couples de serrage (voir données constructeur) PAINT The motor should be sandblasted prior to being painted. The paint used is RAL 9006 (grey) - Standard: Polyurethane Vinyl (PIN009PV102) - Optional: Epoxy (PIN008EP039) (Ask the manufacturer for the application instructions «Number of coats, etc») NAMEPLATE Motor type Ingress protection Serial number Motor HV characteristics Operating characteristics Type of grease Approval number 8

9 Maintenance of smoke extraction motors Good practice guide SUMMARY TABLE OF MOTOR SERVICE VISITS «DUAL PURPOSE» MOTORS (normal operation and emergency conditions) FREQUENCY EVERY 6 MONTHS - Check the insulation resistance - Drain any condensation water - Check that the motor is clean - Check the state of the power supply cables - Check that any accessories are fixed securely FREQUENCY EVERY 12 MONTHS Replace the seals on IP65 and IP66 motors AFTER 20,000 HOURS OF OPERATION OR 5 YEARS Replace the antifriction bearings and the stator or replace the whole motor. REGREASING OF OPEN BEARINGS Interval specified on nameplate. - In the case of special applications such as intermittent duty, humid atmosphere, etc, regreasing should be performed at least every two years. SUMMARY TABLE OF MOTOR SERVICE VISITS (emergency conditions) FREQUENCY: ONCE A MONTH - Run the motor for 1 hour. FREQUENCY EVERY 6 MONTHS - Check the insulation resistance - Drain any condensation water - Check that the motor is clean - Check the state of the power supply cables - Check that any accessories are fixed securely REGREASING OF OPEN BEARINGS Regreasing as per instructions on name plate 9

10 MAINTENANCE OF SMOKE EXTRACTION MOTORS VERY IMPORTANT All parts to be changed should be replaced with original manufacturer spare parts. Specify the motor series number on the order. VERY IMPORTANT If any incident occurs during operation (or possibly when stopped), the motor should be inspected immediately. Abnormal vibrations should be investigated immediately. It is advisable to measure and monitor motor parameters such as current, noise and vibration levels, etc, and compare them with the initial settings so as to detect wear or possible malfunctions. 10

11 Maintenance of smoke extraction motors Good practice guide LS TRAINING CERTIFICATE MAINTENANCE OF SMOKE EXTRACTION MOTORS TRAINING CERTIFICATE We the undersigned, LEROY SOMER, certify that: Mr has undergone training in: Company "MAINTENANCE OF SMOKE EXTRACTION MOTORS" And has acquired the technical skills required for repairing the LEROY SOMER range of smoke extraction motors without supervision. This certificate is valid for a period of one year. Dated. /. /. LS trainer Company receiving training 11

12 CERTIFICAT DE RÉPARATION CDS Company: Address:.... REPAIR CERTIFICATE SMOKE EXTRACTION MOTORS Document no: Date: / /. Motor:.. Serial no:... Motor characteristics: Motor HV characteristics:.. Operating characteristics: Description of repair carried out: MODELE Operative:. See document V1 P003/Maintenance of smoke extraction motors. A copy should be given to the customer. This document should be retained for 10 years. 1/1 12

13 Maintenance of smoke extraction motors Good practice guide Very important : After operating in smoke extraction mode, the motors must be replaced. 13

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15 Maintenance of smoke extraction motors Good practice guide 15

I n t e r n a t i o n a l n e t w o r k w w w. l e r o y - s o m e r.

ltda. CANADA LEROY-SOMER / EMC CHINA LEROY-SOMER Division CROATIA Emerson Network Power Ltd CZECH REPUBLIC M.L.S. HOLICE S.R.O. DENMARK LEROY-SOMER DENMARK A/S EGYPT MOTEURS LEROY-SOMER FRANCE MOTEURS LEROY-SOMER GERMANY LEROY-SOMER Marbaise GmbH GREECE LEROY-SOMER Ltd HUNGARY LEROY-SOMER I.

KOREA EMERSON ELECTRIC KOREA MOROCCO CARREFOUR INDUSTRIEL ET TECHNOLOGIQUE NETHERLANDS LEROY-SOMER NEDERLAND B.

16 I n t e r n a t i o n a l n e t w o r k w w w. l e r o y - s o m e r. c o m ALGERIA LEROY-SOMER International Division AUSTRALIA LEROY-SOMER PTY LTD AUSTRIA LEROY-SOMER ELEKTROMOTOREN BELGIUM LEROY-SOMER BELGIUM BRAZIL LEROY-SOMER DIVISION EMERSON ELECTRIC DO BRASIL ltda. CANADA LEROY-SOMER / EMC CHINA LEROY-SOMER Division CROATIA Emerson Network Power Ltd CZECH REPUBLIC M.L.S. HOLICE S.R.O. DENMARK LEROY-SOMER DENMARK A/S EGYPT MOTEURS LEROY-SOMER FRANCE MOTEURS LEROY-SOMER GERMANY LEROY-SOMER Marbaise GmbH GREECE LEROY-SOMER Ltd HUNGARY LEROY-SOMER I.M.I. INDIA LEROY-SOMER C/O EMERSON ELECTRIC CO. ITALIA LEROY-SOMER JAPAN LEROY-SOMER DIVISION EMERSON Japan Ltd. KOREA EMERSON ELECTRIC KOREA MOROCCO CARREFOUR INDUSTRIEL ET TECHNOLOGIQUE NETHERLANDS LEROY-SOMER NEDERLAND B.V POLAND FZN MARBAISE LS ROMANIA LEROY-SOMER REPRESENTATIVE OFFICE RUSSIA LEROY-SOMER DIVISION SAUDI ARABIA ABUNAYYAN TRADING CORPORATION SINGAPORE LEROY-SOMER SOUTHEAST ASIA Pte Ltd SOUTH AFRICA LEROY-SOMER PTY LTD SPAIN LEROY-SOMER IBERICA S.A. SWEDEN LEROY-SOMER NORDEN AB SWITZERLAND LEROY-SOMER SA TAIWAN LEROY-SOMER LIAISON OFFICE THAILAND LEROY-SOMER THAILAND TUNISIA ULYSSE SPARE PARTS TURKEY ELEKTROMEKANIK SISTEMLER U.A.E. LEROY-SOMER DIVISION EMERSON FZE UNITED KINGDOM LEROY-SOMER LTD USA LEROY-SOMER POWER AND DRIVES VENEZUELA LEROY SOMER C/O EMERSON ELECTRIC CA

Drive systems & electrical energy production for construction, local government structures, large infrastructure and industrial projects

09.2007 / a 4183 en - 03.2008 / b Drive systems & electrical energy production for construction, local government structures, large infrastructure and industrial projects www.leroy-somer.com Drive systems