room pressurization system (rps) 15rpx-xxx1-xxx user manual … · room pressurization system (rps)...
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ML543 | v3 23-Aug-17
Room Pressurization System (RPS) 15RPx-xxx1-xxx
User Manual ML 543
Contents 1. General System Specification 2. Quick User Guide 3. System Overview 4. Application Suitability 5. Understanding the components 6. Installation of the System 7. Operation of the System 8. Maintenance of the System 9. Fault finding 10. Recommended Spares List 11. Drawings 12. Certificates of Certification
ML543 | v3 i
Markings and Warnings
Required for Rooms in Hazardous Areas in accordance with IEC/EN60079-13
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 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”
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1 General System Specification
1 5 R P - -
Note: Not all codes are applicable General Specification Classification For 15 RP1-Axx1-xxx Models: EXPO Certificate number EXPO 15ATEX 1343X
II 3 G Ex e ic nA nR [pz] c IIB+H2 T3 Gc
For 15 RP1-Nxx1-xxx Models: Compliant with IEC 60079-13:2010 for Pressurized Rooms, EXPO
16MDOC1351. Complies with the requirements of NFPA 70 Article 505 and suitable for safe use in the Hazardous Locations: Class I, Zone 2, AEx e ic nA nR [pz] IIB+H2 T3 Gc. Under the provision of NFPA 70, Article 501.5, Room Pressurization System suitable for use in Hazardous Locations: Class I Division 2 Groups B, C & D T3.
Room Pressure User adjustable via Flow potentiometer on User Interface Panel Fan Capacity 1800cfm (3000 m3/h ) for Single door or up to 2766cfm (4700 m3/h)
for two 3’ x 7’ doors (0.91m x 2.13m) Fan Type ATEX Approved Backward Curved Centrifugal Ex II 2 G c IIB T3 Fan Motor Type ATEX Approved Induction Motor Ex II 2 G Ex eb II T3 Dampers (where fitted) EEx C II T6, A60 & H120 Fire and Smoke Damper
Room Pressurization System
Power Supply 1 = 1ph 230/240V 3 = 3ph 400/480V X = Custom
Certification Area A = ATEX N = NFPA 496
Protection Type V = pv – External Non-hazardous
Internal Release Z = pz – External Zone 2
Internal Area Declassified G = General Purpose
Ventilation Capacity 1 = 1800 cfm (3000 m3/hr) – 1 door 2 = 2766 cfm (4700 m3/hr) – 2 door Other capacities on request
Number of Fans 1 = Single 2 = Dual (Redundant) fans
Mounting Style T = Through Wall Mount I = In Room Mount D = In Room with Fire Damper R = Roof Mounted* L = In-line Mounting* *Includes remote control panel
Inlet Stack Style 0 = Direct Intake, No Stack 2 = 2m Stack Intake (6’6”) 3 = 8m Stack Intake (26’) C = Custom
Material Options 0 = Mild Steel Housing (Painted) 1 = Stainless Steel 316 Housing
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Actuator (where fitted)
Ex nC II T6, ATEX Zone 2 approved 15N.m Actuator with return spring
Pressurizer Control Enclosure Restricted Breathing RPS Mounting method In-Room / Through-Wall / Roof Mounted / In-Line (refer to Section 6) Temperature Limits -20° C to + 40° C (-4° F to + 104°) Supply Air Ambient air (Or from remote source as required.) RPS Weight 120kg (265 lb) Sound Level 75dB(A) max at High Flow Electrical Specification System Supply Voltage 230 VAC nominal, limits are 180V to 264V, 1 Phase, 50/60 Hz.
Optional 3 Phase, 400/480V. System Power Consumption Less than 1.5 kW Fan Motor Rating 3~230/400V D/Y 50Hz 1.1kW, 3.2/1.85A 1290 RPM Outputs Volt Free (Dry) contacts: 1A 250Vac AC1 Inputs Optoisolated; activate either by mechanical switch or by NPN
transistor. Maximum current: 10 mA. Sensor Specification Room Pressure Sensor Differential diaphragm switch with gauge. Factory set point 25 Pa
(0.1” w.c.) High Flow Sensor Differential diaphragm switch with 150 Pa (0.6” w.c.) rising set point. Fire Sensor (where fitted) Ex ia IIC T6 Materials of Construction System Enclosure Polyester powder coated mild (carbon) steel.
Optional 316L Stainless Steel. Fire & Smoke Damper (where fitted)
304L Stainless Steel (Refer to section 4 for further details)
Indications and alarms Indicators visible on the front panel of the unit (See Figure 1) System OK Pressure OK Pressure Alarm Forced Fan Shutdown Forced High Flow
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
Users Volt Free Contacts See drawing SD8192 for user terminal connection. Volt Free Output Contacts Volt Free (Dry) contact for Buzzer (Buzzer supplied by others)
Expo recommended part: EBU-0000-013 Pressure Alarm System OK
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2 Quick User Guide Installation Mount the Room Pressurization System (RPS) as per general arrangement drawings 15 RPX-
XX11-XXX for 1 door system and 15 RPX-XX21-XXX for 2 door system. Make Electrical connections as per applicable local Codes of Practice. Users Electrical hook up is
shown in drawing SD8192. 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 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.
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. Read the section in manual called “Operation of the System.” If an obvious problem has not been highlighted and corrected then follow the checks in the
section “Fault Finding”. If the checks have been made and the system will still not work then please contact your local
distributor or EXPO.
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3 System Overview Area Classification: ATEX Zone 2 Category 3 or NFPA Class I, Zone 2 depending on model Applicable Directives: Local Codes of Practice, EN 60079-0:2012 and IEC 60079-13:2010 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 classified 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 door(s). Prevent hazardous gas ingress from an external source.
The RPS is a 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 it is the responsibility of the User to ensure the air supply is free of hazardous gases.
Start-up procedure
1. Switch on the RPS with the Power disconnect switch on the User Interface Panel. 2. An automatic Lamp Test will take place, which will see all the indicators on the User Interface
Panel lighting up briefly. 3. The RPS will require the Flow potentiometer on the User Interface Panel to be adjusted to the
set point. The Pressure OK, Green Indicator shall remain illuminated. The Pressure Gauge shall be in the "Green Band" (above 25 Pa [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.
4. 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.
2. 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:
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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 SD8192 for buzzer contacts.) When the pressure 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 Audible Alarm Silence button. This will not clear the alarm status or induce low flow, it only silences the buzzer.
3. The action to be taken on alarm is to be determined by the owner in accordance with his risk assessment.
4. 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.
5. 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 SD8192)
System Running Conditions and Alarm Status.
Figure 1 (The User Interface Panel)
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 insufficient 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
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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: i.e. 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 drawing SD8192. 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: i.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 SD8192. When the external input is closed the corresponding indicator on the User Interface Panel will illuminate.
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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 Nylon Mild (carbon) Steel Polyurethane Brass Acrylic Aluminum Silicone Rubber Bronze Neoprene EPDM Epoxy
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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 rating. 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 indicate 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. 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. The Fire and Smoke Damper (where fitted)
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The Fire and Smoke Damper is located at the inlet of the RPS. Flow occurs when its circular blade is rotated 90° by applying power to the actuator. When actuator is not powered an external return spring holds the blade in the closed position. For insulation for A60 and H120 rating, refer to section 6. The Actuator (where fitted) Electrically driven, the actuator rotationally opens or closes the Fire and Smoke Damper. It is coupled to the bare shaft of the damper and is wired through the terminal enclosure. The actuator also houses the Fire and Smoke Damper return spring which acts as a ‘fail safe’ device by returning the fire and smoke damper blade to the closed positioned should the power be removed or the Safety Temperature Limiter (STL) be triggered. The STL or Fire Sensor is packaged as a probe separate from the actuator. It is mounted close to the inlet of the RPS and features two temperature fuses. One to measure duct temperature and the other to measure room temperature. Should either of these temperatures breach the fuse response temperatures(+72°C for room side fuse and +71°C for duct fuse) then the circuit to the actuator is irreversibly cut.
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6 Installation of the System Room Pressurization System (RPS) The RPS must be fitted to the room using suitable fasteners and the supplied support brackets where required. There are four methods of fitting the unit: In-Room, Roof, InLine and Through-Wall mount. The unit is supplied with a removable fixing frame and fixing points for all methods, refer to the General Arrangement drawings 15 RPX-XX11-XXX for 1 door system and 15 RPX-XX21-XXX for 2 door system. 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 15 RPX-XX11-XXX for inlet connection bushing for 1 door system and 15 RPX-XX21-XXX 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 are 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 drawings 15 RPX-XX11-XXX and 15 RPX-XX21-XXX). 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 SD8192 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. Where inlet damper is fitted and A60 & H120 fire ratings are required, the damper and actuator assembly shall be suitably insulated with approved materials (by others) in accordance with the requirements of local authorities. To access the Damper and Actuator Assembly, the damper access & inspection cover is removed. Then the two insulation cover plates are removed. For overall fire rating, ensure assembly is approved by local authorities. Where required suitable fire sealant or gaskets (by others) shall be used at damper intake connections.
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7 Operation of the System
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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 [0.1" 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 % use 50 %. On Graph XGR-PTD0-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. 50% 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.
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8 Maintenance of the 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 Frequency Procedure
Filter
1 months (minimum) inspection with 6 month replacement frequency or more often as required depending on the degree of pollution.
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.
Indicator's Regular checking as per Users’ maintenance plan
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.
Fan & motor assembly
At least every 6 months or upon signs of wear or more frequently per Users’ maintenance plan.
The fan motor is equipped with bearings with ‘lifetime lubrication’ and requires no maintenance. At least every 2 years the motor winding insulation 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.
Fan impeller
Regular inspection per Users’ maintenance plan depending on the degree of pollution.
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.
STL (where Fire Dampers are fitted)
Regular checking as per Users’ maintenance plan
The Safety Temperature Limiter features a test button to test the temperature fuses. When the test button is pushed the damper blade should spring into the closed position. WARNING, The force of the return spring on the damper blade can cause serious damage to hands and limbs! Ensure all hands and limbs are away from the damper blade before pushing the test button. To access the STL remove the damper access & inspection cover.
Restricted breathing enclosure
Routine checking as per Users’ maintenance plan
For more detail, refer to Section 5: The System Control Enclosure
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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 Possible Fault Resolution
System does not start up
There is no power to the system
Check that appropriate power is applied to the system
Internal fuse may have blown Consult Expo
System OK light blinks continually
3 minute ‘Power On’ has not elapsed, refer to Operation of the System
After 3 minutes, recycle the Power i.e. Switch Off then On once
Fan keeps failing Flow sensor fault
Replace loose pneumatics tube or faulty sensor (consult Expo)
Motor or impeller damage causes flow to drop off
Investigate fan motor for any visual obstructions or damage. (Consult Expo)
Room Pressure alarm keeps coming on or system stays in High Flow
Excessive room leakage or Flow too low
Ensure room is airtight Or Increase setting on Flow adjust knob.
System stays in low flow
Faulty room pressure sensor Consult Expo
Faulty variable speed drive Consult Expo
An indicator does not illuminate during Indicator Test
Loose wiring connection to indicator contact
Reconnect Wiring
Faulty indicator Replace damaged indicator
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10 Recommended Spares List Part Description Expo part number
Filter Replaceable G4 filter HF1-A000-004
Fan Motor Assembly Motor and fan impeller assembly AGE-GE00-134
Red Indicator User Interface Panel Indicator ELA-D000-013
Green Indicator User Interface Panel Indicator ELA-D000-014
Alarm Silence Pushbutton Ø22 Black Pushbutton MBU-Z000-006
Room Pressure Gauge Pressure Gauge & Switch, factory set at 25 Pa (0.1” w.c) falling
HGA-0000-055
Fan High Flow Sensor Differential Diaphragm pressure switch, factory set at 150 Pa (0.6” w.c.) rising.
ESW-0PS0-008
Flow Adjust potentiometer Panel mount 10K single turn potentiometer ERE-DMK0-10K
Front grille Aluminium air inlet grille MLV-D000-000 For all other parts or faults, locate applicable identification tag and consult Expo to discuss appropriate action.
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11 Drawings and Diagrams The following drawings are attached: Title Drawing Number Sheet(s) 1 Door System Low Flow Range XGR-PTD0-000 1 of 1 1 Door System Full Flow Range XGR-PTD0-001 1 of 1 2 Door System Low Flow Range XGR-PTD0-002 1 of 1 2 Door System Full Flow Range XGR-PTD0-003 1 of 1 1 Fan 1 Door Room Pressuriser 15 RPX-XX11-XXX 3 of 3 2 Door 1 Fan Room Pressuriser 15 RPX-XX21-XXX 3 of 3 Damper Information XBR-PTD0-000 1 of 1 Electrical Termination Box SD7833 1 of 1 Interconnection Diagram SD8193 1 of 1
Figure.3 Fire and Smoke Damper Label (where fitted)
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12 Certificates of Certification The following certificates are attached: Title Certificate Number Declaration of Conformity EXPO 15ATEX1343X Fan Motor Certificate PTB08ATEX 3062 Fire and Smoke Damper Certificate (where fitted) CFD-C1 DoC Actuator Certificate (where fitted) PTB-04ATEX 2106 Fire Sensor Certificate (where fitted) PTB 10 ATEX 2006 NFPA Manufacturers Declaration of Conformity EXPO 16MDOC1351 Class I Div 2 Declaration of Conformity SC035
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are
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be c
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munic
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d in p
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whole
without w
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11/09/2015
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TE
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L
TIT
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2 D
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160 x
5 =
800
840 [33.2
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1020 [40.2"]
195.6 x 5 = 978
[6.3
" x5 =
31.5
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640
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4.7120
25.2
640
OF
1 D
EC
PLA
CE
±0.2
UN
ITE
D K
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DO
M
2
11/09/2015
are
retu
rnable
upon request. They a
re n
ot to
be c
opie
d o
r com
munic
ate
d in p
art o
r in
whole
without w
ritten c
onsent from
Expo
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3
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No
.
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The c
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echnolo
gie
s L
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hey a
re to b
e tre
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s c
onfidential and
2 D
EC
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MO
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production
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FIN
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NO
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2000 [78.7"] 250[10"]
650
[25.6
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11/09/2015
DR
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N D
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OF
ST
AC
K O
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S
3
01
DR
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ST
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CH
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D
15 R
PX
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11-X
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1:2
0
production
RE
V:
DR
AW
N
JPdB
FIN
ISH
MA
TE
RIA
L
are
retu
rnable
upon request. They a
re n
ot to
be c
opie
d o
r com
munic
ate
d in p
art o
r in
whole
without w
ritten c
onsent from
Expo
The c
onte
nts
of th
is d
raw
ing / d
ocum
ent are
Copyright ©
Expo T
echnolo
gie
s L
imited. T
hey a
re to b
e tre
ate
d a
s c
onfidential and
NO
DE
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[y"] S
PE
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BY
CU
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[9.1
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[17.6
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[23.3
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EL 8
m [26.2
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RO
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(H
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PR
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SU
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)
SU
PP
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D W
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ALL IN
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25m
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K W
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8m
m [1.1
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S
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UP
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NS
REV.
MO
D N
UM
BER
APPR
OVED
DATE
APPR
OVED
01
DR
AW
N25/11/2015
JPdB
NOTES
BRACKETED DIM
ENSIONS IN INCHES
APPROXIM
ATE W
EIGHT 140kg [309lb]
FILTER ACCESS
PANEL (BOTH SIDES)
36.0
915
DEPTH
39.9
1014 OVERALL
ATMOSPHERIC
REFERENCE POINT -
DO NOT OBSTRUCT
36.0914.5 HEIGHT
405 IN
LE
T
DE
TA
IL A
US
ER
IN
TE
RF
AC
E P
AN
EL
AIR OUTLET
LOUVRE
29.0
737
WIDTH
Exp
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ech
no
log
ies L
imit
ed
AP
PR
OV
ED
SC
AL
E
CH
EC
KE
D
TIT
LE
production
are returnable upon request. They are not to be copied or communicated in part or in whole without written consent from Expo
OF
3
SU
RR
EY
TW
16
5D
B
FIN
ISH
RE
V:
The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and
2 D
EC
PLA
CE
±0.1
PR
OJE
CT
ION
DIM
EN
SIO
NS
IN
mm
TO
LE
RA
NC
ES
DR
AW
ING
No
.
NRB11/09/2015
JPdB
1 D
EC
PLA
CE
±0.2
MA
TE
RIA
L
1.5mm THK
ST/STL / PAINTED M
ILD STEEL
DO
NO
T S
CA
LE
Technologies Limited, neither are they to be used in any way against our interests.
CU
ST
OM
ER
:
2 D
OO
R 1
FA
N R
OO
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RE
SS
UR
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R
15 R
PX
-XX
21-X
XX
JO
B N
o:
DR
AW
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ST
AT
US
:
01
1S
HE
ET
No
.DM
1:2
0
DR
AW
N
DR
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N D
AT
E:
3R
D A
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LE
UN
ITE
D K
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DO
M
NO
DE
C P
LA
CE
±0.5
UN
SP
EC
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D
FLA
TN
ES
S T
O B
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S T
HA
N 0
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m O
VE
R A
NY
100m
m L
EN
GT
H
OPTIONAL EXPO FIRE DAMPER AVAILABLE (MOUNTING
IN-R
OO
M (
I)T
HR
OU
GH
-WA
LL
(T
)IN
LIN
E (
L)
RO
OF
(R
)
REFER TO DRG.
OPTION 'D'), ELSE CUSTOMER SUPPLIED DAMPER REQUIRED.
RECOMMENDED APERTURE 747W x 925H [29.4"W
x 36.4"H]
MO
UN
TIN
G N
OT
ES
FOR DAMPER INFORMATION
NOTES
XBR-P
TD0-000
(MIN BEND RADIUS = 32mm)
RECOMMENDED APERTURE 747W x 925H [29.4"W
x 36.4"H]
PANEL & 10m LONG STEEL ARMOURED CONDUIT.
SUPPLIED W
ITH REMOTE M
OUNTED CONTROL
NOTES
NOTES
NOTES
SUPPLIED W
ITH REMOTE M
OUNTED
CONTROL PANEL, 10m CONDUIT LENGTH
(MIN BEND RADIUS = 32mm)
RECOMMENDED APERTURE 747W x 925H
[29.4"W
x 36.4"H]
M5 M
OUNTING
POINTS (x4)
4.7120
25.2
640
6.2
157
6.2
157
NRB
1 D
EC
PLA
CE
±0.2
PR
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3R
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Exp
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no
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JO
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TIT
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CU
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No
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3
DIM
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NS
IN
mm
UN
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DO
M
DR
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No
.
SC
AL
ES
UR
RE
Y T
W1
6 5
DB
2 D
EC
PLA
CE
±0.1
Technologies Limited, neither are they to be used in any way against our interests.
DR
AW
N D
AT
E:
OF
MO
UN
TIN
G O
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ION
S
2
15 R
PX
-XX
21-X
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01
DR
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ST
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US
:
AP
PR
OV
ED
CH
EC
KE
D
1:2
0R
EV
:
DR
AW
N
production
DM
11/09/2015
JPdB
FIN
ISH
MA
TE
RIA
L
are returnable upon request. They are not to be copied or communicated in part or in whole without written consent from Expo
The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and
NO
DE
C P
LA
CE
±0.5
UN
SP
EC
IFIE
D
FLA
TN
ES
S T
O B
E L
ES
S T
HA
N 0
.4m
m O
VE
R A
NY
100m
m L
EN
GT
H
M5 M
OUNTING
POINTS (x4)
4.7120
25.2
640
A
(FIXING BOLTS SUPPLIED BY EXPO)
INLET FIXING POINTS:
A = 8 OFF M
8 TAPPED HOLES
EQUISPACED ON 406mm [16"] PCD
B = 12 OFF M
8 TAPPED HOLES
EQUISPACED ON 389mm [15.3"] PCD
B
7.5
°
OPTIONAL DAMPER,
PART NO. AGM-GM00-307
250.0 [10"]
11mm [0.43"]
FIXING HOLES
(SUPPLIED LOOSE)
SUPPORTING BRACKETS
20 OFF
REMOVABLE
FIXING FRAME
195.6 x 5 = 978[7.7" x 5 = 38.5"]
840 [33.2"]
[6.3
" x5 =
31.5
"]
1020 [40.2"]
160 x
5 =
800
247[9.7]
52.6
1337
2000 [78.7] 250[10]
650
[25.6"]
SU
RR
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TW
16
5D
B
3
SC
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DM
DR
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N D
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3R
D A
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DO
NO
T S
CA
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Exp
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ech
no
log
ies L
imit
ed
JO
B N
o:
TIT
LE
are returnable upon request. They are not to be copied or communicated in part or in whole without written consent from Expo
The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and
2 D
EC
PLA
CE
±0.1
PR
OJE
CT
ION
DIM
EN
SIO
NS
IN
mm
1 D
EC
PLA
CE
±0.2
DR
AW
ING
No
.
CU
ST
OM
ER
:
Technologies Limited, neither are they to be used in any way against our interests.
SH
EE
T N
o.
ST
AC
K O
PT
ION
S
15 R
PX
-XX
21-X
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Thecontentsofthisdrawing/documentareCopyrightExpoTechnologiesLimited.Theyaretobetreatedasconfidentialandarereturnable
uponrequest.TheyarenottobecopiedorcommunicatedinpartorinwholewithoutwrittenconsentfromExpoTechnologiesLimited,neither
aretheytobeusedinanywayagainstourinterests.
SURREYTW165DB
UNITEDKINGDOM
SYSTEMINPUTSANDOUTPUTS
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Page 1 of 3 Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey KT7 0RH, UK T +44 (0)20 8398 8011 F +44 (0)20 8398 8014 E [email protected] www.expoworldwide.com
(1) Declaration of Conformity. (2) Expo Technologies Document Number EXPO 15ATEX1343X (3) This declaration is issued for the electrical apparatus:
Expo Room Pressurizing System types 15 RPx-xxxx-xxx (4) Manufacturers:
Expo Technologies Unit 2 The Summit Hanworth Road Sunbury on Thames TW16 5DB
(5) This electrical apparatus and any acceptable variation thereto is specified in the
Annex to this certificate and the documents therein referred to. (6) This declaration and schedule confirms compliance of each unit with the following
standards: EN 60079-0: 2012 + A11: 2013 General requirements EN 60079-13: 2010 Pressurized rooms “p” EN 60079-11: 2012 Equipment Protection by Intrinsic Safety “i” EN 60079-15: 2010 Protection type “n”
(7) This apparatus fulfils all the requirements for Group II Category 3 equipment in
accordance with European Directive 94/9/EC. (8) The design is documented in Expo Technologies Technical Construction File
number 49496.
(9) The apparatus marking:
Ex e ic nA nR [pz] c IIB+H2 T3 Gc For and on behalf of Expo Technologies Ltd. Sunbury on Thames, 29th July 2015.
Martin Hodgson Martha Carrillo
Senior Consultant Director of Business Systems
II 3 G
Page 2 of 3 Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey KT7 0RH, UK T +44 (0)20 8398 8011 F +44 (0)20 8398 8014 E [email protected] www.expoworldwide.com
Declaration of Conformity EXPO 15ATEX1343X
10 Description:
Room Pressurization is a pressurizing and ventilation systems for rooms. The system contains a motor fan or dual fan (optional), an Ex nR Restricted-Breathing for System Control Enclosure and an Ex nA Electrical Terminal Box with local and remote inputs for power; and outputs for interfacing with the integrated room protection system. Interfaces are provided where required for fire & gas detectors, outlet valves, fire dampers and other associated equipment. All user interfaces are via the Ex nA Electrical Terminal Box.
11 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 50m3/hr to 4750m3/hr Minimum over-pressure 25Pa Maximum over-pressure 650Pa Ambient temperature range –20C to +40C.
12 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. Alternatively 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
13 Documentation
Title Drawing no Rev Sheets
Room Pressurizer (1 fan, 1 door) SD8188 1 1 of 1 Room Pressurizer (2 fan, 1 door) SD8189 1 1 of 1 Room Pressurizer (1 fan, 2 door) SD8190 1 1 of 1 Room Pressurizer (2 fan, 2 door) SD8191 1 1 of 1 Interconnection Diagram SD8193 1 1 of 1 Numbering System SD8194 1 1 of 1 Electrical Terminal Box SD8192 1 1 of 1 System Control Enclosure SD8187 1 1 to 5 System Manual (single fan) ML543 System Manual (dual fan) ML544
Page 3 of 3 Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey KT7 0RH, UK T +44 (0)20 8398 8011 F +44 (0)20 8398 8014 E [email protected] www.expoworldwide.com
Expo Technologies Document Number EXPO 15ATEX1343X Variation 1 This variation introduced the following: Issued new certificate for Room Purge as part of a transition from nL to ic. Variation 2 This variation introduced this following changes: 14 Certification
Description Certification Marking Temperature RH50M Motor and Fan
PTB 08 ATEX 3062 II 2 G Ex eb II T3 II 2 G c IIB T3
-20ºC to +40ºC
EC-Declaration of Conformity to PTB 08 ATEX 3062
ZA75ex-GB II 2 G Ex eb II T3 II 2 G c IIB T3
-20ºC to +40ºC
Pepper Cable gland Sira 01ATEX1272X II 2 GD Ex e IIC Gb
Page 1 of 2 Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey KT7 0RH, UK T +44 (0)20 8398 8011 F +44 (0)20 8398 8014 E [email protected]
Expo Technologies Ltd. Registered in England No2854600 www.expoworldwide.com
(1) Manufacturer’s Declaration of Conformity
(2) Expo Technologies Document Number EXPO 16MDOC1351 (3) This declaration is issued for the electrical apparatus:
Expo Room Pressurizing System types 15 RPx-xxxx-xxx (4) Manufacturers:
Expo Technologies Unit 2 The Summit Hanworth Road Sunbury on Thames TW16 5DB
(5) This electrical apparatus and any acceptable variation thereto is specified in the Annex
to this certificate and the documents therein referred to. (6) This declaration and schedule confirms Room Pressurization units has been designed
in compliance with the following standards: ANSI/ISA 60079-0 - 2009 General requirements IEC 60079-13: 2010 Pressurized rooms “p” ANSI/ISA 60079-7-2008 Equipment Protection by Increased Safety “e” ANSI/ISA 60079-11-2011 Equipment Protection by Intrinsic Safety “i” ANSI/ISA 60079-15-2009 Protection type “n”
(7) Room Pressurization units Type 15 RPx-xxxx-xxx complies with the requirements of
NFPA 70 Article 505 (NEC 505). (8) The design is documented in Expo Technologies Technical Construction File number
SC35 (9) In accordance with NFPA 70 Article 505.9(A), Room Pressurization units Type 15 RPx-
xxxx-xxx are suitable for safe use in Hazardous Locations, and can be marked in accordance with NFPA 70 Article 505.9(C)(2) as:
Class I, Zone 2, AEx e ic nA nR [pz] IIB+H2 T3 Gc For and on behalf of Expo Technologies Ltd. Sunbury on Thames, 10th March 2016
Martha Carrillo Director of Business Systems
Page 2 of 2 Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey KT7 0RH, UK T +44 (0)20 8398 8011 F +44 (0)20 8398 8014 E [email protected]
Expo Technologies Ltd. Registered in England No2854600 www.expoworldwide.com
Annex to Manufacturer’s Declaration of Conformity EXPO 16MDOC1351
10 Description:
Room Pressurization is a pressurizing and ventilation systems for rooms. The system contains an increased safety brushless induction motor fan or dual fan (optional), a Restricted-Breathing enclosure for the System Control and a non-sparking Electrical Terminal Box with local and remote inputs for power; and outputs for interfacing with the integrated room protection system. Where required, the system may provide interfaces for fire & gas detectors, outlet valves, fire dampers and other accessory equipment. All user interfaces are via the non-sparking Electrical Terminal Box.
11 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 50m3/hr to 4750m3/hr Minimum over-pressure 25Pa Maximum over-pressure 650Pa
Ambient temperature range –20C to +40C. 12 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. Alternatively conduit stopper boxes may be used providing that the IP54 rating is maintained. The System Control Enclosure is protected by restricted breathing. If opened the integrity of the protection shall be confirmed by testing the leakage rate as described in the manual for the system. 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
13 Documentation
Title Drawing no Rev Sheets
Room Pressurizer (1 fan, 1 door) SD8188 1 1 of 1 Room Pressurizer (2 fan, 1 door) SD8189 1 1 of 1 Room Pressurizer (1 fan, 2 door) SD8190 1 1 of 1 Room Pressurizer (2 fan, 2 door) SD8191 1 1 of 1 Interconnection Diagram SD8193 1 1 of 1 Numbering System SD8194 1 1 of 1 Electrical Terminal Box SD8192 1 1 of 1 System Control Enclosure SD8187 1 1 to 5 System Manual (single fan) ML543 System Manual (dual fan) ML544
RP NFPA SC035.Docx
Declaration of Conformity
With NEC 500 Class I, Division 2
Expo Technologies Ltd Unit 2, The Summit, Hanworth Road Sunbury on Thames TW16 5DB UK
This document confirms that Room Pressurization Systems Type 15 RPx-xxxx-xxx are suitable for use in Class I, Division 2 Locations.
Under the provision of NFPA 70, Article 501.5 that states Zone Equipment listed and marked in accordance with 505.9(C)(2) for use in Zone 2 locations shall be permitted in Class I,
Division 2 locations for the same gas and with a suitable temperature class.
In EXPO 16MDOC1351, Expo Technologies declares that Room Pressurization Systems Type 15 RPx-xxxx-xxx have designed in compliance with NFPA 70 Article 505, and suitable to be marked in accordance with 505.9(C)(2) as Class 1, Zone 2, AEx e ic nA nR [pz] IIB+H2 T3 Gc,
thereby the systems are suitable for use in Hazardous Locations:
Class I Division 2 Groups B, C & D T3
Product description Room Pressurization is a pressurizing and ventilation systems for rooms. The system contains an increased safety brushless induction motor fan or dual fan (optional), a Restricted-Breathing enclosure for the System Control and a non-sparking Electrical Terminal Box with local and remote inputs for power; and outputs for interfacing with the integrated room protection system. Where required, the system may provide interfaces for fire & gas detectors, outlet valves, fire dampers and other accessory equipment. All user interfaces are via the non-sparking Electrical Terminal Box.
Signed Date 10/Mar/2016 Managing Director Confidential Assessment file reference SC035
Expo Technologies USAExpo Technologies Inc.
9140 Ravenna Road Unit #3Twinsburg,
OH 440878, USAT: +1 440 247 5314F: +1 330 487 0611
Expo Technologies UKExpo Technologies Ltd.
Unit 2 The Summit, Hanworth RoadSunbury-On-Thames,
TW16 5DB, UKT: +44 20 8398 8011F: +44 20 8398 8014
Expo Technologies ChinaQingdao Expo M&E Technologies Co. Ltd
329 Huashan Er LuJimo City, Qingdao,
266200 ChinaT: +86 532 8906 9858F: +86 532 8906 9858
www.expoworldwide.com