Room Pressurization System (RPS) RPx-xxx1
Contents
1. PLE FLAMGARD Engineering Ltd UNITS 3 8 4 GEMINI WORKS EN FLAMGARD CALIDAIR TEL 444 1495 757347 44 1495 755443 DUCTSIZE _ wem e ce 0038 1260 coos sore YEAROF MAW mi ETHER Figure 3 Fire and Smoke Damper Label where fitted Page 22 ML478 V5 12 Certificates of Certification The following certificates are attached Title Fan Motor Certificate Room Pressurizer System Certificate Declaration of Conformity Fire and Smoke Damper Certificate where fitted Actuator Certificate where fitted Fire Sensor Certificate where fitted Junction Box Certificate where fitted ML478 V5 Certificate Number PTBOSATEX 3062 SASF080134 04 2106 PTB 10 ATEX 2006 SIRA99ATEX3173 Page 23 Sheet s 4 of 4 1 of 1 1 of 1 2 of 2 3 of 3 3 of 3 6 of 6 Physikalisch Technische Bundesanstalt Braunschweig und Berlin 1 2 3 5 6 7 8 9 10 11 12 EC TYPE EKAMINATION CERTIFICATE Translation Eguipment and Protective Systems Intended for Use in Potentially Atmospheres Directive 94 9 EC EC type examination Certificate Number PTB 08 ATEX 3062 Equipment Three phase external rotor motors type MK 137 Manufacturer Ziehl Abegg AG Address Heinz Ziehl StraRe 74653 K nzelsau Germany This e2. Jansshid 38155384 aasn 38 11 5 idols LINGNOD YO SQNVIO 218 1 5 S3IMIN3 JIGVO LINGNOD 1v 934033 SI Was WNWININ 39904 WalsAs C v 9 X v 62 HS26 TIVM NYHL GSHSINIS G30N3AWOO33 NMOGLNHS 039404 S3LON i NOI en Waviv 34055344 96 3 098 HLHON 8968 02 0 WOQONDI CLUINN LOVINOO 31ON 225 1431 OL N3dO S39NIH YOO S3OV Id 53191 9 ONSE LINGNOD 318V2 ALAN 1 90 LON 3OV4USLNI uasn S310H 5NIXIJ LNIOd 9 0 330 02 53415 H1O8 NO 29N343334 3415554 WOON ODN3HdSONWLV WJAOO SS322V 431114 1 TWNYSLNI 0 TZOT 8 6 8 X 9 S6T lH5I3H 9 lt 6 1 21 ZOE SNOILdO LNNOW H LOS 303 s TE 4 91 SNIXIJ FISVAOWSY JAIM 62 ZEZ 008 S X 09T 131599 3273 SIHL 2661 8 NOILVTIVISNI NO Su3HLO N33u2S LIINI Q31v3s 39 OL 3903 110v43a L or 052 7 Z LHS 339 LIMNI sz ST JYANOI 131100 00 0 303 SLNIOd ONIXIS 5 H15N31 92 S vT6 SjseJeiui no 3 Aue ui pasn eq H LON371 4
3. S6cl LL 0901 076 508 SOL 06S 0 7 ESE SEC U 00 2 0022 0002 008T 009 DOTT O0cT 0001 008 009 00 0 70 0 800 9 0 0 9670 a 09 870 90 790 Tus 4 M01 200 0Q Ld HOX 014 19211155914 09 0 08 06 00 OTT OFT OST 09 Page 14 ed 155 14 woo y ML478 V5 WJI 6 96 6 690 2092 VSEC LOCZ 0900 8161 992 009 0 7 GZEL 77 1 060 288 SEL 065 Orr 560 27 0005 OSZ 005 OSer 000 OSZE 005 OSZE 000 05 0 0052 OScc 0000 OSZT 0057 OSZT 0001 05 005 062 0 c 0 v0 9 0 80 0l cl 9 8l 0c vc 9c IIMS moji 4 55 f abuey 00 0G Ld MOX 1 2711155 14 05 001 OST 00 osz 00E OSE 00 05 005 055 009 059 ML478 V5 Page 15 H3Wolsno ON W94 NA sowas 1902330404 RR A 184355 TVH3N3D 33714055349 WOOH 65 5 t pr Navid aa aaa aun POPUL 59120 91 weaw 95949 9692 6402 1H9I3M 31VWiXONddVv 3ONIIIS Wav qasn 38 TIWHS 344016
4. Uiuus z u3MOd 3ZIS 3uIM Q3QN3AWOO3 WNWINIW HO 21 A3SHDS PRESSURE ALARM NORMALLY CLOSED VOLT FREE NORMALLY OPEN VOLT FREE OPEN TO SHUTDOWN NORMALLY OPEN VOLT FREE CLOSED SYSTEM HEALTHY USER S POWER INPUT CLOSE FOR HIGH FLOW YAMOd 1 NORMALLY OPEN VOLT FREE LOSED AUDIBLE ALARM C mM s 2 gt 2 lt gt CLOSED SIVNDIS AW LN3 Q 13IJ AYNSOIONA 1 OL AUYNSOTONA OL TWNOIS NOILOarOdd PLE Jeuyeu peyur seiBojouuoe odx3 ul Jo Wed Jo eq jou jsenbei uodn VOF dovid 9397 9199 LON OG S3JONVHTIOL 9 0 OJQ 3o amem eor STRE sas sumta uaa g 290 1 13877 xog TWNIWYSL ER Par apar oasrvivw O ees seer naon t v90 0dVd V 1 JYIM OdX3 AG 5 LON wasn Aen elt HdE 47704 LON 1 ZH 09 04 844 OZE 1114 3H3HM 1 303 45012 H IH 1nHS 3NIVA 1971110 3uvdS 1311000
5. 9T NO aao2vdsInO3 SLYASLAN 8W IWNYSLNI 340 8 Y 9 52 0590 SINIOd 1 331121315 v OL SYIHLO JYOddNS WAWINIW S3uInO3u Jeuyeu peyur seiBojouuoe odx3 juesuoo INDUJIM Jo 10 paidoo eq oj jou 1senbej uodn L0 2 9719 LON OQ pue enuepyjuoo se eq pay sei amp ojouuoe odx3 sjy Jo sjuejuoo SUL 39919 SdJONVHJIOL NI SNOISN3WIG 9 0 39V1d 931541939531 3 3 WEATHER COWL amp BIRD SCREEN SUPPLIED WITH ALL INLET STACK OPTIONS EL8 m SYS M000 032 GA DRAWING No SHEET No 685 DETECTOR MOUNTING BRACKETS 8kg WEIGHT FIXING LUGS EL 7 11m reri zd Ko A TWO OPPOSING LIFTING TRUNNIONS FOR CRANING NY WITH SPREADER BAR Reges a a WELDED 3 PART STACK WITH FLANGED CONNECTIONS IN 2 PLACES AI 14 SELF 5 FRESH AIR STACK P E DESIGNED FOR 240km h R 150mph WIND LOADS FLEXIBLE DUCT COUPLING EL 2 78m 9 12 4 K JOB No CUSTOMER SURREY KT7 UNITED KINGDOM ted ROOM PRESSURIZER 8m 26 INLET STACK imi INTERNAL upon request They are not to be copied or communicated in part or in whole
6. Force HiFlow constant monitorin X ofremote inputs itid dut Room pressure OK Flow verified 2U sec elapsed Room Pressure Normal Alarm operation Room pressure OK Flow verified Shut Down ML478 v6 02 03 15 Initial Commissioning Refer to Installation of the System and ensure the system has been installed correctly Ensure the filter is clean and in position and filter access covers are securely in place The RPS door and all other removable covers are closed properly Commissioning Putting into use Ensure all installation requirements are met Ensure all openings doors gland plates etc to the Room which is being pressurized are shut Apply the appropriate power to the system Switch Power on at User Interface Panel It is important to note that when switching the unit off and on within a short period the System OK light will blink for 3 minutes after which the power may be recycled to start This feature prevents damage to the frequency drive Adjust the Flow potentiometer on the User Interface Panel until the Pressure Gauge needle is in the Green Band above 25 Pa 0 1 w c and the green Pressure OK indicator is illuminated After Start up the User has 30 seconds in which to set the Flow and thus desired pressure to compensate for the individual room leakage rate After 30 seconds if the Room Pressure is below 25 Pa 0
7. 2 Room Pressurization System RPS RPx xxx1 xxx User Manual ML 478 Contents General System Specification Quick User Guide System Overview Application Suitability Understanding the components Installation of the System Operation of the System Maintenance of the System Fault finding 10 Recommended Spares List 11 Drawings 12 Certificates of Certification ML478 v6 02 03 15 Markings and Warnings Required for Rooms in Hazardous Areas in accordance with IEC60079 13 Markings using equivalent text may be used The isolating switch shall be clearly marked WARNING Run fan for T min before energizing the installation unless the atmosphere inside the room is known not to be hazardous Where T is the minimum specified time to purge the room All doors to the pressurized room shall be clearly marked on the inside and the outside by the following WARNING Pressurized room Keep door closed Each infrequently used entrance to a room in a zone 2 area shall be marked to restrict access such as with the following AUTHORIZED PERSONNEL ONLY An airlock shall be clearly marked with the following WARNING Verify other door is closed before opening this door Each entrance to a room where the protective gas is inert shall be clearly marked with the following DANGER Room does not contain breathable air and is an asphyxiation hazard Each entrance
8. 000 032 Make Electrical connections as per applicable local Codes of Practice Users Electrical hook up is shown in drawing SD7833 Always ensure the system has been installed as per the full instructions in the section of the manual titled Installation of the System Operation of system e Once installed correctly turn on the power supply It is important to note that when switching the unit off and on within a short period the System OK light will blink for 3 minutes after which the power may be recycled to start This feature prevents damage to the frequency drive e Adjust the flow on the User Interface Panel to achieve required room pressure as per information supplied in Start Up Procedure If the system has not worked as expected check the installation thoroughly e Read the section in manual called Operation of the System f an obvious problem has not been highlighted and corrected then follow the checks in the section Fault Finding e lf the checks have been made and the system will still not work then please contact your local distributor or EXPO 3 System Overview Area Classification NEC Class Zone 2 ATEX Zone 2 Category 3 Applicable Directives Local Codes of Practice NEC 505 NFPA 496 EN 60079 0 and IEC 60079 13 draft The RPS generates a room pressure to prevent ingress of the external hazardous atmosphere The design of the RPS allows it to operate in a classifie
9. 1 w c High Flow will commence When room pressure is established the RPS will resume Low Flow To ensure correct clean airflow as per Local Codes of Practice With the Room Pressure set around 50 Pa slowly turn the Flow adjust knob counterclockwise until the pressure is just above 25 Pa This step must be performed on a falling pressure Allow the flow to stabilize for a minute Read off the Room Pressure from the gauge and the Fan Speed in on the Flow adjuster knob by rounding down to the next lowest increment i e if on 54 96 use 50 96 On Graph XGR PTDO xxx use correct graph for 1 or 2 door system draw a horizontal line at the Room Pressure set above i e 26 Pa Where this line intersects the corresponding Fan Speed curve set above i e 5096 curve draw a vertical line down and read off the Flow rate on the horizontal axis To increase decrease the Flow rate at a desired Room Pressure the rate of room leakage can be altered e g higher room leakage will require higher flow to pressurize the room to the desired level The room leakage rate may be altered by adjusting the overall sealing quality of the room i e entry apertures gland plates door seals etc Provided the system has been installed correctly and the initial system checks described in the previous section have been performed the system is now ready for continuous use with little or no user input or maintenance required ML478 v6 02 03 15 8 Maintenance of t
10. 404 35019 seiDojouuooe odx3 7 xz 1 1 WALSAS 5 ro Mu cr uu OT 6 18 Z 19 kya OL N3dO NE N 329V3W3 LNI WALSAS 1 105 01 90 0dVd V IN OdX3 5 LON LNAWdINOA uasn ISN ZH 09 05 uazzng v9c 081 1 1114 3H3HM 15012 H IH INHS INdNI 3NTIVA 1971110 3uvdS 1311000 uOd 35019 OL N3dO N 3 1 AH LIV3H 3 lt WALSAS 553 4 FG PS SGT GET ZT IT OT 16 18 Z 19 329V3W3 LNI LAdNI WALSAS Qqa31vlOSI OldO SjseJeju JNO jsureBe Aue ui pesn Jeuyeu odx3 juesuoo Jo Ped JO perdoo eq jou jsenbeJ uodn 00 UlUg 0 NVHL 6531 38 OL SSANLV14 pue se eq 0 seiBojouuoe odx3 1uBu do Siy Jo sjuejuoo eu VOF 3Ov ld 2 AWOS LON Od SHONVYSIOL NI SNOISNHIIG
11. Flow Range 2 Door System Low Flow Range 2 Door System Full Flow Range 1 Door Room Pressurizer General Assembly 2 Door Room Pressurizer General Assembly Electrical Termination Box Terminal Box Label Fire and Smoke Damper Label where fitted ML478 v6 Drawing Number XGR PTDO 000 XGR PTDO 001 XGR PTDO 002 XGR PTDO 003 SYS M000 032 5 5 000 035 07833 062 Figure 3 Sheet s 1 of 1 1 of 1 1 of 1 1 of 1 3 of 3 2 of 2 1 of 1 1 of 1 1 of 1 02 03 15 Sec W yut 0022 2 0002 0901 0081 076 Moly 928 902 06S 0 7 790 4 M07 enss 000 00Ld X9X MOJ 19211155914 05 09 0 08 06 001 OTT OET OST 09T Page 12 ed aanssaig y ML478 V5 w 0902 DOSE 0 90 80 01 Vi 91 8l 0c vc ELGI 59 1 0291 0 7 SCEL 2 0501 288 SEZ OSZE 000 05 5 0052 0555 0002 OSZT OOST OSZT 065 Ort S6c 171 0 0001 OSZ 005 055 0 f 08 f IN4 c enss 00 0 1 19211155914 05 DOT 052 00 05 00 05 005 055 009 059 1 55 44 ML478 V5 Page 13 119 moji
12. Manual dual fan Issue 0 Drawing no 5 5 000 032 5 5 000 033 5 5 000 035 07833 07911 ML478 ML490 Rev an Ww Issue 1 Drawing no 507929 SD7930 SD7931 SD7932 SD7937 SD7938 SD7935 SD7911 ML478 ML490 Note the manual revisions are subject to change without notification Page 3 of 3 Rev 1 1 1 1 1 1 1 1 6 5 Sheets 1 of 1 1 of 1 1 of 1 1 of 1 1 of 1 1 of 1 1 of 1 5of5 Product Description Type Number Pressurization Number of fans System 1 Single fan 2 Dual redundant fans Power Supply 1 1 230V Mounting Style Custom Through Wall Mount I In Room Mount Certification D In Room with Area Fire Damper N NFPA496 A ATEX Protection Type Inlet Stack Style V pv External Non hazardous 0 Direct Intake Internal release No stack 2 pz External Zone 2 2 Stack intake 2 Internal Area Declassified Metres 6 6 3 Stack intake 8 G General Purpose Metres 26 Ventilation Capacity C Custom 1 1800 cfm 3000 m hr 1 door 2 3000 cfm 5000 m hr 2 door Other capacities upon request Page 30 ML478 V5 Technologies Ltd Tel 44 0 20 8398 8011 Unit 2 Summit 44 0 20 8398 8014 Hanworth Road E mail sales expoworldwide com Sunbury on Thames TW16 5DB Expo Technologies Inc Tel 1 888 NFPA 496 9140 Ravenna Road Unit 3 Tel 1 440 247 5314 Twinsbu
13. YO SQNVI9 J1aVLINS S3IMIN3 JIGVO LINGNOD 933034 WIS 891 WNWININ Q393O4 NO WalsAS O VICE v 62 HGZ6 MYL 34niM3dv TIWM NYHL 23 NMOQINHS 5310 H Wa Tv 33055344 9 4 898 1 HLYON 9653 02 0 p WOGONDI GUNN 119V1NOO JYNSNI ALON 385 1431 OL N3dO S35NIH S32V d NI S3IHLIN3 T1VNDIS 318VO J1dN 172131590 LON OG SOVSYSLNI uasn S310H ONIXI4 ANTOJ ONA YAY 57 0 440 Oc 53015 H1O8 NO 324583338 331555384 WOO DTYAHdSOWLY YAAOD 55800 331114 1 TWNYALNI LNO YIV 4 41 2 07 TZOT 8 6 4 X 9 S6T 92 S vT6 9 8 1711 ZOE SNOILdO LNNOW SNIXIJ 318VAOWZ3 LS TE SX 9 4137599 Q3riddns 32v4 SIHL JAIM 62 ZEZ 008 lt 09T 405 L3INI NOLLVTIVLSNI NO YIWOLSND SINIOd 8 38 OL 3903 3uAnO1 191100 YIV ZEE v8 11nv43a 0T OSZ HLONAT 9 52 059 FTONV PLE Jeuyeu seiBojouuoe odx3 juesuoo ul Jo ped Jo eq
14. 1001 UlUp 0 NVH L 5531 39 OL SS3NIV 13 Jeuyeu peyur seiBojouuoe odx3 juesuoo USNM ejouM Jo Wed Jo eq jou jsenbei uodn VOF dovid 919 LON NOILOJ O Hd pue se eq 1uBu do 519 jo sjuejuoo eu T0F39VId 9341 S3JONVHTIOL ww NI SNOISN3WIG J IONV 9 0 39V1d OJQ 5 H3Wolsno W93 NMG aaZINVAS KA mow Y9 SE0 000W SAS Cae 9401140 JDVIS LIINI 83218055384 WOON _ miis atc cae oen nsen pagum serBojouuse odx3 s ACCU E Eq ses oe MOIVLS L3 INI NMOHS uddWva IWNOILdO TIVM NMOHS LNNOW INOO3 NI 35007 5 sia vua 57415 ONILLNNOW 5 38 2 ONILYOddNS OML 45001 dariddns AWVYS 3191543334 LNIOd OTNH3HdSOWILV TWNYALNI 1 SYAHLO Ad LINGNOD 916 8 M3MOS I3NVd NOILOAdSNI YAdWNVd Ue NN zd WOO OLNI TWNYALNI SNIOVuUS 1 044 5 LO 0OW9 WOV 3dAL LNOHLIM 3305 3314 OdX3 19315 1 9 39nv9 LHOM LHDI3H 15 qauin awu sv
15. FICATE 08 3062 Conditions for manufacturing installation and operation If the non closed lead ends are connected to the outer electric circuits within the potentially explosive area a suitable terminal box has to be used for which a separate certificate has been issued and which carries an explosion protection mark of its own The connecting lead must be installed to provide for permanent wiring In connection with condensed water boreholes which are not closed during operation the external rotor motors must be installed with fan blades and fan housing To ensure IP44 degree of protection of enclosure the motors must be provided with fan blades and they must be installed in the fan housing The temperature of the conveyed medium must not reach values beyond the temperature range specified in this certificate and accepted as ambient and cooling medium temperature 18 Essential health and safety requirements met by compliance with the harmonised standards mentioned above Zertifizierungssektor Explosionsschutz Braunschweig November 13 2008 By order Dr Ing F Lienesch Regierungsdirektor sheet 3 3 EC type examination Certificates without signature and official stamp shall not be valid The certificates may be circulated only without alteration Extracts or alterations are subject to approval by the Physikalisch Technische Bundesanstalt In case of dispute the German text shall prevail Physikalisch Te
16. aL T7 0550 OdX3 Ad aariddns 61108 5NIXIJ aaovdsino3 431N33 330 IWNYSLNI 340 91 8 8T NO 51 SLANG1SM YILNID NO 8W IWNYSLNI 340 8 Y 9 52 0590 SINIOd LIINI 331121315 AIXI v OL SUSHLO JYOddNS Sa3uInO3u 2 LON OG Jeuyeu seiBojouuoe odx3 juesuoo pejeorunuuuioo JO aq oj Jou s nb uodn peyur seibojouube HUM 9 OUM Ul JO P pel q 0 uL y 2 0 9301 S3ONVH3TOL Aue ul pesn oj H LON371 WWOO 0 SS3138 OL SSANLV14 9 0 JOW1d 931541939531 pue enuepyjuoo se eq pay sei amp ojouuoe odx3 sjy Jo sjuejuoo eu NI 30 NiaaHS ______ DHL IBS THD snas sna i J sa sar __ 68005 NOLLVNIWYSL 1 21812313 Peo aa as NECS papu 1 1 odx3 ones ar oon UIuuS 0 1VNDIS SLNdNI uasn SINdINO WALSAS
17. ating The Fan Unit The RPS uses an ATEX rated aluminium impeller and induction fan motor unit approved for use in hazardous areas Inlet Stack Fresh air is drawn in from outside the room All flanges and joints shall be sealed and free of leaks and inlet stack or ducting shall be protected against foreseeable mechanical damage The source of air shall be determined from the nature of the process and physical layout and shall not normally be from a classified location Applicable Standards and local Codes of Practice shall be adhered to Inlet tubing must be equal or greater than 350mm or 13 8 in diameter or equivalent rectangular area For user supplied stack or ducting longer than 3m 9 8 and or with more than one bend consult Expo to ensure ability to provide sufficient flow is not impaired Room Pressure Switch To prevent spurious alarms a factory set delay is programmed into the System Control Unit When the room overpressure drops to below 25 Pa 0 1 w c and remains below for 10 seconds the System Control Unit SCU initiates high flow and will remain in this state until Room Pressure has reestablished The users volt free contacts for the Pressure Alarm and Buzzer remain unchanged during the 10 second delay Flow Sensor The RPS is fitted with a differential diaphragm type pressure switch which is set to alarm if the RPS does not reach the correct pressure inside the RPS enclosure when high flow is engaged This will in
18. chnische Bundesanstalt Bundesallee 100 D 38116 Braunschweig Page 26 1478 V5 Physikalisch Technische Bundesanstalt Braunschweig und Berlin DATA SHEET 01 TO EC TYPE EKAMINATION CERTIFICATE 08 3062 Manufacturer Ziehl Abegg AG 74653 K nzelsau Germany for the three phase asynchronmotor type series MK 137 4DK 10 Y fan drive Ratings This certificate is valid for the following designs providing the motors of this type differ only negligibly from the sample tested as regards the electrical and thermal stresses Power input 1 3 kW Voltage 100 230 400 500 690 V Current 9 3 4 05 2 35 1 87 1 35 A Power factor 0 81 Frequency 50 Hz Speed motor 1330 min Duty Type Si IA Iy ratio 4 1 Thermal class In addition to the above mentioned voltages intermediate values are also permissible The associated currents are to be converted in the inverse ratio to the voltages The mains voltage may vary by up to 5 and the mains frequency by up to 2 from the rated values in keeping with range A according to IEC 60034 1 Temperature monitoring If embedded temperature sensors PTC thermistors DIN 44082 M130 are used together with a control unit tested for its function in accordance with directive 94 9 EC the requirements of EN 60079 7 subclause 4 7 4 are also met for motors in the locked rotor condition up to temperature class At rated voltage and starting from the cold state 20 C th
19. d area The protective air is ambient air drawn from the rear of the RPS and it is the Users responsibility to ensure that the protective air is free from hazardous gasses The RPS features mounting holes on the rear of the unit at the air intake to which ducting can be fixed System Description Expo Room Pressurization System is designed for the following applications but may not be limited to Positively pressurize a room above atmospheric pressure Provide an outward velocity through opened Prevent hazardous gas ingress from an external source The RPS is z Type pressurizer pz The RPS measures the difference between the pressure in the room and the atmosphere outside the room The user sets the low flow on the unit via the Flow adjust control knob on the User Interface Panel to ensure that a positive room overpressure is maintained The air intake to the RPS is potentially from a classified area and itis the responsibility of the User to ensure the air supply is free of hazardous gases ML478 v6 02 03 15 Start up procedure 1 2 3 Switch on the RPS with the Power disconnect switch on the User Interface Panel An automatic Lamp Test will take place which will see all the indicators on the User Interface Panel lighting up briefly The 5 will reguire the Flow potentiometer on the User Interface Panel to be adjusted to the set point The Pressure OK Green Indicator shall remain illu
20. dicate a fan flow failure Should the fan fail or a lack of flow cause the switch to alarm the System OK indicator will no longer be illuminated and the System OK volt free contact will go open circuit ML478 v6 02 03 15 The System Control Enclosure The System Control Unit SCU is housed within this enclosure The System Control Enclosure is located inside the RPS enclosure The enclosure contains no user serviceable components Opening the enclosure may invalidate the certificate and should only be opened by trained Expo service engineers Routine testing may be required to ensure the sealing integrity of the restricted breathing enclosure has not been compromised A test port is provided for this purpose Routine testing frequency is determined by the Users operating procedures and should consider operating environment thermal cycling exposure etc For routine testing the procedure shall be in accordance with the current applicable standard for restricted breathing Currently the test is prescribed as follows Using the test port provided induce a vacuum in the enclosure of 300 Pa below atmospheric Seal the test port tube The enclosure shall still hold at least 270 Pa below atmospheric after 14 seconds Ensure test equipment is absolutely leak free Where restricted breathing test fails consult Expo 6 Installation of the System Room Pressurization System RPS The RPS must be fitted to the room using suitable fasteners and
21. e differential drops below the 25 Pa 0 1 w c threshold and the alarm contact is made it can be silenced on the User Interface Panel by depressing the Alarm Silence button This will not clear the alarm status or induce low flow it only silences the buzzer The action to be taken on alarm is to be determined by the owner in accordance with his risk assessment When the pressure is restored in the Room e g by closing the door the RPS will reduce the flow rate to the low level again and the alarm will clear The RPS features volt free input contacts which the user can use to Force Shutdown or Force High Flow The breaking or making of these contacts will change the illumination status of the corresponding indicator s on the User Interface Panel see Electrical Termination Box drawing SD7833 ML478 v6 02 03 15 System Running Conditions Alarm Status CONTACT UNITED KINGDOM 44 0 20 8388 8011 NORTH AMERICA 1 888 498 PRESSURE ALARM ww expoworldwide com FORCED HIGH FLOW C SYSTEM OK C PRESSURE OK Figure 1 The User Interface Panel FORCED SHUTDOWN AUDIBLE ALARM SILENCE Normal Running i e Flow setting is sufficient to maintain room pressure the fan will run in low flow mode and the following will occur The System OK and Pressure OK indicator will be illuminated High Flow Running i e A door has been open for more than 10 seconds or the flow setting is ins
22. e made by opening the hinged front door to access the Electrical Termination Box The Power Disconnect Switch must be in the Off position and the door fasteners must be removed The conduit cable entry bushes at the front of the enclosure are threaded 3 4 NPT F for the user to fit hard conduit and or cable glands refer to drawing SYS M000 032 GA A minimum IP54 seal is required at conduit cable entries and suitable glands or conduit stopper box s shall be used Unused entries shall be blanked with suitable blanking plugs The user must then carry out electrical terminations as required per drawing SD7833 where recommended conductor sizes are found Screws should be tightened to a setting of 0 5 N m On completion the user is to replace the Electrical Termination Box lid and RPS door ensuring that all screws are in place and are sufficiently tightened ML478 v6 02 03 15 7 Operation of the RP System Power 30 seconds for the user to adjust appropriate flow rate All alarms are inhibited in this stage em pressure Go back to normal flow OK NO 7 Clear all alarms Timer start 10 sec delay Reset all counters Room pressure OK y m of remote inputs M 8 Reset all counters 10 sec elapsed YES Switch to Hi Flow Timer start 20 sec delay Normal flow control System Failure Alarm System deactivated
23. e tripping time will be t4 85 s Owing to the matched protective device the data of the heating time te can be dispensed with Operation at reduced voltage From 25 of the rated voltage the motors may also be operated as fan drive at reduced voltage using a three phase a c controller The motor current may exceed the rated value by up to 9 From 15 of the rated voltage the motors may also be operated as fan drive at reduced voltage using a transformer The motor current may exceed the rated value by up to 9 Report PTB Ex 03 33440 Zertifizierungssektor Explosionsschutz Braunschweig November 13 2008 By order WA Dr Ing F Lienesch Regierungsdirektor page 1 1 ML478 V5 Page 27 1 2 3 4 5 6 7 8 9 Declaration of Conformity Zo Expo Technologies Document Number EXPO 09MDoC1148X Issue 2 This declaration is issued for the electrical apparatus Expo Room Pressurizing System types RPx xxxx xxx Manufacturers Expo Technologies Unit 2 The Summit Hanworth Road Sunbury on Thames TW16 5DB This electrical apparatus and any acceptable variation thereto is specified in the Annex to this certificate and the documents therein referred to This declaration and schedule confirms compliance of each unit with the following standards EN 60079 0 2006 General requirements 60079 13 Ed 1 CDV Pressurized rooms p EN 60079 15 2005 Protection type This apparat
24. erungsdirektor EC type examination Certificates without signature and official stamp shall not be valid The certificates may be circulated only without alteration Extracts or alterations are subject to approval by the Physikalisch Technische Bundesanstalt In case of dispute the German text shall prevail Physikalisch Technische Bundesanstalt Bundesallee 100 D 38116 Braunschweig Page 24 1478 V5 sheet 1 3 13 SCHEDULE 14 CERTIFICATE 08 3062 15 Description of eguipment The three phase motors which are designed as external rotor motors have Increased Safety e type of protection The stator flange with the stator bush is made from die cast aluminium The rotor is made from die cast aluminium with potted shaft or with steel bush which is to accommodate the shaft The rotor can be provided with unsealed condensed water drains The rotor shaft rotates in for life lubricated rolling bearings that are closed at both ends The bearing cap is made from steel or plastics The motors have IP44 degree of protection of enclosure The winding coils may be equipped with PTC thermistor detectors in compliance with standard DIN 44082 PTC thermistor detectors may be used as the only motor protection if they are connected to a tripping unit function tested in compliance with Directive 94 9 EC marked 2 and the data sheet for the electrical rating shows this optio
25. he system The maintenance recommended for the system is as follows supplemented by any additional local requirements imposed by the local Code of Practice Expo recommends that the following checks are undertaken regularly Part Filter Indicator s Fan amp motor assembly Fan impeller Restricted breathing enclosure ML478 v6 Frequency 1 months minimum inspection with 6 month replacement frequency or more often as required depending on the degree of pollution Regular checking as per Users maintenance plan At least every 6 months or upon signs of wear or more frequently per Users maintenance plan Regular inspection per Users maintenance plan depending on the degree of pollution Routine checking as per Users maintenance plan Procedure Ensure RPS is off Open a filter access panel on either side of the RPS Replace the filter and ensure all access panel seating surfaces and gasketing is free from sand dirt Ensure filter is in correct flow orientation see flow direction marking on filter Replace access panels and ensure that they are properly secured Switch RPS off for 3 minutes and switch RPS on again visually inspect that ALL indicator s on User Interface Panel illuminate for 3 seconds during automatic Indicator Test at startup The fan motor is equipped with bearings with lifetime lubrication and requires no maintenance At least every 2 years the motor winding insulati
26. indicator 10 Recommended Spares List Part Filter Fan Motor Assembly Red Indicator Green Indicator Alarm Silence Pushbutton Room Pressure Gauge Fan High Flow Sensor Flow Adjust potentiometer Front grille Description Replaceable G4 filter Motor and fan impeller assembly User Interface Panel Indicator User Interface Panel Indicator 22 Black Pushbutton Resolution Check that appropriate power is applied to the system Consult Expo After 3 minutes recycle the Power i e Switch Off then On once Replace loose pneumatics tube or faulty sensor consult Expo Investigate fan motor for any visual obstructions or damage Consult Expo Ensure room is airtight Or Increase setting on Flow adjust knob Consult Expo Consult Expo Reconnect Wiring Replace damaged indicator Expo part number HF 1 A000 004 AGE GE00 134 ELA D000 013 ELA D000 014 MBU Z000 006 Pressure Gauge amp Switch factory set at 25 0000 055 0 1 w c falling Differential Diaphragm pressure switch factory _ ESW 0PS0 008 set at 150 Pa 0 6 w c rising Panel mount 10K single turn potentiometer Aluminium air inlet grille ERE DMKO 10K MLV D000 000 For all other parts or faults locate applicable identification tag and consult Expo to discuss appropriate action ML478 v6 02 03 15 11 Drawings and Diagrams The following drawings are attached Title 1 Door System Low Flow Range 1 Door System Full
27. minated The Pressure Gauge shall be in the Green Band above 25 0 1 w c The User has 30 seconds in which to set the Flow and thus desired pressure to compensate for the individual room leakage rate After 30 seconds High Flow will commence until room pressure is established Refer to Section 7 Operation of the System Commissioning to ensure correct airflow as per Local Codes of Practice Normal operating conditions The following system operating characteristics are considered normal and any deviation should be fully investigated by referring to the Fault Finding section 1 The RPS once set will ensure that the room maintains an internal overpressure to prevent the ingress of the external atmosphere Should the RPS pressure drop below the pre set threshold of 25 Pa 0 1 w c due to a door being opened or for any other reason after a preset delay of 10 seconds to allow personnel to enter and exit the Pressurized Room the RPS will a Engage High Flow to ensure an outward air velocity of 0 3m s 60fpm across the doorway b After an additional 20 seconds Indicate an alarm condition both locally visual indicator and if connected by the user by switch contact to remote location C Indicate alarm status via volt free contact which is available for the user to connect an alarm buzzer or indicate the alarm at a remote location see Electrical Termination Box drawing SD7833 for buzzer contacts When the pressur
28. n The supply lead which is connected to the winding ends directly in the winding overhang is brought out through cable glands that have been approved on the basis of Directive 94 9 EC The motors are only used to drive axial and radial fans with axial air intake Cooling is achieved by heat exchange using the convection current of the transported medium and the motor enclosure The ambient temperature range is 40 C to 20 C This range may be increased up to 60 by special electrical or thermal design features using suitable materials and components or by the data sheet for the electrical rating The electrical motor data and the data for equipment providing for safe operation including specifications for compliance with the temperature class are defined in a data sheet that forms part of the EC type examination certificate 16 Test report PTB Ex 08 38197 17 Special conditions for safe use None sheet 2 3 EC type examination Certificates without signature and official stamp shall not be valid The certificates may be circulated only without alteration Extracts or alterations are subject to approval by the Physikalisch Technische Bundesanstalt In case of dispute the German text shall prevail Physikalisch Technische Bundesanstalt Bundesallee 100 D 38116 Braunschweig 1478 V5 Page 25 Physikalisch Technische Bundesanstalt PIB Braunschweig und Berlin SCHEDULE TO CERTI
29. ng SD7833 When the external input is open circuit the corresponding indicator on the User Interface Panel will illuminate When this contact is not used a link within the Electrical Termination Box must be used Forced High Flow e An internal hazardous gas is detected in the room additional ventilation is required etc The user can connect an external volt fee input contact to the unit as per the Electrical Termination Box drawing SD7833 When the external input is closed the corresponding indicator on the User Interface Panel will illuminate ML478 v6 02 03 15 4 Application Suitability This version is designed for use in a Zone 2 classified environment The RPS is designed to pressurize the interior of a room by introducing ambient air This equipment is designed for use under normal industrial conditions of ambient temperature humidity and vibration Please consult Expo before installing this equipment in conditions that may cause stresses beyond normal industrial conditions Materials of construction Stainless Steel e Nylon Mild carbon Steel e Polyurethane Brass Acrylic Aluminum e Silicone Rubber Bronze Neoprene e EPDM e Epoxy 5 Understanding the main components The Filter The RPS is designed to provide particle free ambient air to the room The air is drawn in to the rear of the enclosure and then filtered through a fine filter with a G4 classification and a MERV 8 r
30. oj jou uodn L0 39v d 930 Z 9199 LON OQ pue jenuepyuoo se eq 1 odx3 1uBu do Siy jo sjuejuoo 941 3ov d 93d S3ONVH TOL NI SNOISN3INIG 931541939531 H3WOlSno ON gor W93 NMG 0321 aa WAA 501140 2 15 131 93219155399 WOOY _ XR ON GOW POWT SeBojouyses am MOWLS LIINI 4 9 NMOHS MOVLS LAINI ON NMOHS LNNOW TIVM PYHH L LNNOW INOO3 NI 85001 5 sia vua 57415 5 38 2 ONILYOddNS OML 35001 aariddns 3191543134 SW3HLO OL Su3H LO Ad LINGNOD LNIOd DTYSAHdSOWLV dVal FIDILYVd WILYANI 318VAOINW3 TWNOIS 8 u3MOd IMOD IV LN3IANOHIAN3 WOO OLNI YIV 7N33 LNI TVN3 LX3 TIVNSH3LENT SYSHLO Ad 3 IOWS 3IJ 4 8 1 0002 SY3HIO Ad d1V ld YOLdVAV TIVH3AO 304 OdX3 LINSNOD SYAHLO S9NILOnG L31NI YIV 543 OdX3 aariddns 517109 5NIXIJ WWE8E NO aaovdsino3 SLYASLNN 8W IWNYSLNI 340 ZT 8
31. on resistance should be measured and should be above 1 5MOhm Upon signs of wear or 35 000h a bearing exchange is required Take note of any abnormal operating noise or vibration Fan motor maintenance may only be carried out by the fan manufacturer Always ensure the system is isolated and fan is stationary Inspect impeller blades for dirt and pollution build up Clean impeller with a damp cloth only Do not use any aggressive or solvent cleaners For more detail refer to Section 5 The System Control Enclosure 02 03 15 9 Fault Finding If the system does not behave in the manner described in any of the above there is a fault Some of the more likely faults are dealt with below If a cure cannot be affected by following the procedure shown below please call Expo or your distributor for further assistance Symptom System does not start up System OK light blinks continually Fan keeps failing Room Pressure alarm keeps coming on or system stays in High Flow System stays in low flow An indicator does not illuminate during Indicator Test Possible Fault There is no power to the system Internal fuse may have blown 3 minute Power On has not elapsed refer to Operation of the System Flow sensor fault Motor or impeller damage causes flow to drop off Excessive room leakage or Flow too low Faulty room pressure sensor Faulty variable speed drive Loose wiring connection to indicator contact Faulty
32. quipment and any acceptable variation thereto are specified in the schedule to this certificate and the documents therein referred to The Physikalisch Technische Bundesanstalt notified body No 0102 in accordance with Article 9 of the Council Directive 94 9 EC of 23 March 1994 certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres given in Annex to the Directive The examination and test results are recorded in the confidential report PTB Ex 08 38197 Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079 0 2006 EN60079 7 2007 If the sign X is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate This EC type examination Certificate relates only to the design examination and tests of the specified equipment in accordance to the Directive 94 9 EC Further requirements of the Directive apply to the manufacturing process and supply of this equipment These are not covered by this certificate The marking of the equipment shall include the following 126 ExellT4 2 T3 or T4 Zertifizierungssektor Explosionsschutz Braunschweig November 13 2008 By order Dr Ing Regi
33. rg Fax 1 330 487 0611 OH 44087 E mail sales na expoworldwide com USA www expoworldwide com
34. ted Breathing In Room or Through Wall 20 C to 40 C 4 to 104 Ambient air Or from remote source as required 120kg 265 Ib 75dB A max at High Flow 230 VAC nominal limits are 180V to 264V 1 Phase 50 60 Hz Less than 1 5 kW 3 230 400 D Y 50Hz 1 1kW 3 2 1 85 1290 RPM Volt Free Dry contacts 1A 250Vac AC1 Optoisolated activate either by mechanical switch or by NPN transistor Maximum current 10 mA Differential diaphragm switch with gauge Factory set point 25 Pa 0 1 w c Differential diaphragm switch with 150 Pa 0 6 w c rising set point Polyester powder coated mild carbon steel Indicators visible on the front panel of the unit See Figure 1 p6 System OK Pressure OK Pressure Alarm Forced Fan Shutdown Forced High Flow Users Volt Free Contacts System output lamp indicator and Volt Free Dry output contacts System output lamp indicator and Volt Free Dry output contacts System output lamp indicator and Volt Free Dry output contacts User input input contacts and lamp indicator User input input contacts and lamp indicator See drawing 507833 for user terminal connection Volt Free Output Contacts ML478 v6 Volt Free Dry contact for Buzzer Buzzer supplied by others Expo recommended part EBU 0000 013 Pressure Alarm System OK 02 03 15 2 Guick User Guide Installation Mount the Room Pressurization System RPS as per the General Arrangement drawing 5 5
35. the supplied support brackets where required There are two methods of fitting the unit In Room and Through Wall mount The unit is supplied with a removable fixing frame and fixing points for both methods For Through Wall the default fixing frame position is shown on the General Arrangement drawing SYS M000 032 GA As per common engineering practice the room wall should be sufficiently strengthened and sufficient thread engagement is to be provided in the strengthened room wall structure When mounted care should be taken where shock loading could occur during transportation Suitable measures should be in place to mitigate any adverse affects caused by shock loading on the RPS including all internal components Failure to adhere to the aforementioned guidelines may result in failures or damages falling beyond the scope of the manufacturers guarantee Ensure that inlet ducting or stack flanges and joints are sealed and free of leaks and are protected against foreseeable mechanical damage Inlet tubing must be equal or greater than 350mm or 13 8 in diameter or equivalent rectangular area Refer to drawing 5 5 000 032 for inlet connection bushing for 1 door system and SYS M000 035 GA for 2 door system For user supplied stack or ducting longer than 3m 9 8 and or with more than one bend consult Expo to ensure ability to provide sufficient flow is not impaired When mechanical installation is complete the Users electrical connections ar
36. to a room where loss of pressurization could result in an alarm indicating an asphyxiation hazard from build up of inert gas shall be clearly marked with the following DANGER Do not enter when alarm sounds Room does not contain breathable air and is an asphyxiation hazard Each entrance to a room where loss of pressurization could result in an alarm indicating an explosion hazard from build up of flammable gas or vapours shall be clearly marked with the following DANGER Do not enter when alarm sounds room contains a dangerous level of combustible gas and is an explosion hazard ML478 v6 02 03 15 1 System Specification General Specification Classification System Marking Room Pressure Fan Capacity Fan Type Fan Motor Type Pressurizer Control Enclosure RPS Mounting method Temperature Limits Supply Air RPS Weight Sound Level Electrical Specification System Supply Voltage System Power Consumption Fan Motor Rating Outputs Inputs Sensor Specification Room Pressure Sensor High Flow Sensor Materials of Construction System Enclosure Indications and alarms For use in NEC 505 or ATEX Zone 2 nA nL nR pz 4 Gc User adjustable via Flow potentiometer on User Interface Panel 1800cfm 3000 m h for Single door or up to 3000cfm 5100 m h for two 3 x 7 doors 0 91m x 2 13m ATEX Approved Backward Curved Centrifugal Ex 11 2G IIB T4 ATEX Approved Induction Motor Ex II 2G e T4 Restric
37. ufficient to maintain enough pressure to overcome room leakage or any other reason that would result in a loss of room overpressure for longer than 10 seconds The high flow mode will engage and the following will occur The System OK indicator will remain illuminated The Pressure OK indicator will no longer be illuminated and the Pressure Alarm indicator will illuminate The Pressure Alarm volt free contact will close and the External Buzzer volt free contact will close unless silenced via Audible Alarm Silence button on User Interface Panel The Audible Alarm Silence feature only overrides the External Buzzer contact It does not affect the Pressure OK and Pressure Alarm indicators nor does it affect the remote Pressure Alarm contact High Flow is maintained until the room overpressure is reestablished at which time the System will revert to normal running conditions i e low flow Fan System Failure i e There is a failure to achieve sufficient flow through the unit due to any reason like a blocked filter restriction in ducting fan failure faulty flow switch electrical control failure etc The System OK indicator will no longer be illuminated and the System OK volt free output contact will go open circuit Forced Fan Shutdown An external hazardous gas is detected at the inlet mechanical damage is observed etc The user can connect an external volt fee input contact to the unit as per the Electrical Termination Box drawi
38. us fulfils all the requirements for Group Il Category equipment in accordance with European Directive 94 9 EC The design is documented in Expo Technologies Technical Construction File number 41017 and within certificate record no SC22 The apparatus marking Ex nA nL nR pz T4 Gc 3G For and on behalf of Expo Technologies Ltd Sunbury on Thames 02 March 2015 rr Holy Martin Hodgson Certification Engineer Senior Consultant 1013 Annex to Declaration of Conformity 09MDoC1148X 10 11 12 13 Description A range of pressurizing and ventilation systems for rooms comprising a fan or combinations of fans an Ex nR protected System Control Enclosure with local and remote inputs and outputs for interfacing with the integrated room protection system Interfaces are provided where required for fire amp gas detectors outlet valves fire dampers and other associated equipment All user interfaces are via an Ex nA Electrical Terminal Box System data Power Supply 180 264 Vac 1 Phase 50 60Hz 320 528 Vac 3 Phase 50 60Hz Air Flow set by user range between 50m hr to 5500m hr Minimum over pressure 25Pa Maximum over pressure 650Pa Ambient temperature range 20 to 40 Special conditions of safe use Cable glands to the Electrical Terminal Box shall be a minimum of IP54 and be type Ex e or d and shall be installed in accordance with the gland certificate Alternativel
39. without written consent from Expo Technologies Limited neither The contents of this drawing document are Copyright Expo Technologies Limited They are to be treated as confidential and are returnable are they to be used in any way against our interests Expo Technologies L TITLE EL y m y 1 SPECIFIED AIR INLET INTO ROOM BY Hon CUSTOMER 2 DEC PLACE 20 1 FLATNESS TO BE LESS THAN 0 4mm OVER ANY 100mm LENGTH OPERATOR INTERFACE PANEL 1 DEC PLACE 20 2 GALVANIZED ROOM HIGH PRESSURE REFERENCE POINT UNSPECIFIED DEC PLACE 10 5 INLET TUBING MILD STEEL TOLERANCES POWER amp SIGNAL CONDUIT BY OTHERS MATERIAL EL 0 THRU WALL MOUNT SHOWN WITH 8m 261 INLET STACK BASEPLATE 0545 21 5 x 25mm 1 THICK WITH 8 OFF 28mm 1 1 HOLES EQUISPACED ON PCD 463 18 23 IN ORIENTATION SHOWN DIMENSIONS IN mm DO NOT SCALE M25 1 ANCHOR BOLTS IN CONCRETE FOUNDATION EMBEDMENT DEPTH DETERMINED BY OTHERS STACK WEIGHT APPROX 750kg psu po 1 A 24 07 9 18 02 10 APPROVED JPdB ____ DRAWING STATUS 3rd ANGLE PROJECTION RM NEN zor a Simo Lai s SSH gor 1700 T s 8324155384 WOOL 8000 7 GALINA peur 2 odx3 13315 pT NW H0 21 A3SHDS 9160 54071 1H9I3M 31VWIXOMddv
40. y conduit stopper boxes may be used providing that the IP rating is maintained The System Control Enclosure is protected by restricted breathing measures If opened the integrity of the protection shall be confirmed by testing the leakage rate as described in the manual for the apparatus A record of the re testing shall be maintained and the enclosure be marked to indicate when the testing took place Failure to carry out the test and record the results will invalidate this certificate Documentation Title Drawing no Rev Room Pressurizer GA single 5 5 000 032 2 Room Pressurizer GA dual SYS M000 033 GA 2 Room Pressurizer GA single 2 door SYS M000 035 GA 1 Electrical Terminal Box SD7833 3 System Control Enclosure SD7911 1 System Manual single ML478 6 System Manual dual ML490 5 Note the manual revisions are subject to change without notification Page 2 of 3 Annex to Declaration of Conformity 09MDoC1148X Variation 1 Variation 1 of the certificate is issued to include the 2 fan 2 door model of Room Pressurizing System new drawings added Schedule drawings listed on Issue 0 of the certificate have been updated or replaced as follows Title Room Pressurizer 1 fan 1 door Room Pressurizer 2 fan 1 door Room Pressurizer 1 fan 2 door Room Pressurizer 2 fan 2 door Interconnection Diagram Numbering System Electrical Terminal Box System Control Enclosure System Manual single fan System
Download Pdf Manuals
Related Search