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Summary of Contents for Wesper Premiair PR 20
- Page 1 Installation and maintenance manual Manuel d’installation et de maintenance PR 20-360 English Français Air Handling Units Centrales de traitement d'air IOM PR-W.1GBF Date : March 2004 / Mars 2004 Supersedes / Annule et remplace : None / Aucun...
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Page 3: Safety Precautions
1 - Introduction The purpose of this manual is to give the rules of installation, startup, operation and maintenance to the users of the air handling units. It doesn't provide a full description of all maintenance works assuring the long life and the reliability of this type of equipment. Only the services of a qualified technician can assure a reliable and durable running of the unit. -
Page 4: Inspection And Storage
3 - Inspection and Storage Upon receipt of the material on site, all items should be carefully Send within 48 hours a registered letter to the carrier checked against the bills of lading to be sure all crates and cartons mentioning precisely the damages occured;... - Page 5 5 - Dimensions for Ductwork Connections Inlet frame Inlet flexible connector Inlet frame - Bottom intake Inlet flexible connector - Bottom intake Inlet frame - Top intake Inlet flexible connector - Top intake Full face inlet frame Full face inlet flexible connector Sizes 1287 1287...
- Page 6 5 - Dimensions for Ductwork Connections (cont'd) Discharge standard frame Discharge flexible connector Fan arrangement SS Fan arrangement SS Fan arrangement SI Fan arrangement SI Fan arrangement SH Fan arrangement SH 4xØ10 31.5 31.5 Sizes 1000 1100 1200 1000 1100 1200 1000 1100...
- Page 7 5 - Dimensions for Ductwork Connections (cont'd) External shut-off damper Damper without option Damper with connecting frame 31.5 31.5 Damper with flexible connector 4 x Ø10 Sizes 1265 1265 1265 1555 1855 1179 1179 1179 1484 1789 1789 1789 1287 1287 1287 1577...
- Page 8 5 - Dimensions for Ductwork Connections (cont'd) Standard 2-way mixing box Mixing box wihtout option Mixing box with connecting frame 31.5 31.5 Mixing box with flexible connector 4 x Ø10 Sizes 1135 1135 1135 1440 1745 1745 1745 1157 1157 1157 1462 1767...
- Page 9 5 - Dimensions for Ductwork Connections (cont'd) 2-way mixing box with side dampers Mixing box without option Side view Top view Back view Mixing box with connecting frame Side view Top view Back view 31.5 31.5 Mixing box with flexible connector Side view Top view Back view...
- Page 10 5 - Dimensions for Ductwork Connections (cont'd) Standard 3-way mixing box Mixing box without option Mixing box with connecting frame 31.5 31.5 Mixing box with flexible connector 4 x Ø10 Sizes 1135 1135 1135 1440 1745 1745 1745 1157 1157 1157 1462 1767...
- Page 11 5 - Dimensions for Ductwork Connections (cont'd) 3-way mixing box with side dampers Mixing box without option Side view Top view Back view Mixing box with connecting frame Side view Top view Back view 31.5 31.5 Mixing box with flexible connector Side view Top view Back view...
- Page 12 5 - Dimensions for Ductwork Connections (cont'd) Vertical 3-way mixing box Mixing box without option Mixing box with connecting frame 31.5 31.5 Mixing box with flexible connector 4 x Ø10 Sizes 1135 1135 1135 1440 1745 1745 1745 1157 1157 1157 1462 1767...
- Page 13 6 - Definition of the Service Side The service side is defined as the side where there are access to main functions (filters, fan-motor assembly, electric heater, inspection), access to accessories (pressure tapping points, manometers, disconnect switch, rods of dampers, etc.) and water connections (coils, condensate drain). The drawings below show the service sides defined for different air handling unit configurations.
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Page 14: Installation
7 - Installation Adequate space should be left around the unit for piping coils and 7.1 - Unit placement drains, maintenance such as filter replacement, drain pan inspection and cleaning, lubrication and belt adjustment. Sufficient space should be provided on the side of the unit for coil and fan removal The installation of this equipment shall be in accordance with the should that become necessary. - Page 15 7 - Installation (cont'd) Dimensions of the units Dimensions (mm) Sizes 1020 1325 1325 1075 1325 1405 1630 1405 1935 1405 1935 1695 Base frame as standard 1935 1995 Dimensions of the base frames Stiffening angles Rectangular holes for side lifting Detail B Space available for lift truck's forks...
- Page 16 7 - Installation (cont'd) 7.2 - Assembly of the sections Each transport section is supplied with assembly clamps externally 1 - Rig the unit into position and line transport sections up in direction fitted on the end frame of the section. of air flow.
- Page 17 7 - Installation (cont'd) 7.3 - Roof Factory mounted roof Upper panels of transport sections (to be assembled) Roof extension around the unit : A = 100 mm B = 100 mm for in line air handling units, 120 mm for superposed air handling units.
- Page 18 7 - Installation (cont'd) Figure 8B - Left-hand connection side 7.4 - Water piping Water piping should be in accordance with accepted industry standards. Undue stress should not be applied at the connection to coil headers. Pipework should be supported independently of the coils. It is strongly recommended to install flexible isolators on water Air out Air in...
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Page 19: Electrical Connections
7 - Installation (cont'd) Water volume and connection size of coils Sizes 1 row Ø Connection Size 26 x 34 26 x 34 26 x 34 26 x 34 26 x 34 26 x 34 26 x 34 26 x 34 33 x 42 33 x 42 Water volume (l) - Page 20 7 - Installation (cont'd) 2-speed motors (2) Connection type Skeleton diagrams External connection diagrams Manually Switch operated operated Speed (LS) Dahlander for constant torque High Speed (HS) (HS) (2) Diagrams valid for 3-phase 400 V at 1500 / 750 rpm and 3000 / 1500 rpm. 2-speed motors (3) Connection type Skeleton diagrams...
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Page 21: Belt Alignment
8 - Before Startup Checks When performing startup and service, thorough safety precautions Check that all holes for cable entry are tightly sealed. should always be taken. Check tightness of setscrews on motors, bearings and fans. Only qualified individuals should perform these functions. Check that the unit is completely and properly installed with Check alignment of fan and motor pulleys and belt tension ductwork connected and that the protective plastic film has... -
Page 22: Fan Startup
9 - Fan Startup After first 48 hours of operation Caution 1. Disconnect and lock electrical power source. Check the tightness of bearings, wheel and sheave setscrews (or capscrews). Before entering any fan section, make sure the electrical power source to the fan motor is disconnected 2. - Page 23 10 - Maintenance (cont'd) Metal flat filters (G2) Unit sizes 287 x 592 (12" x 24") 592 x 592 (24" x 24") 2000 4000 6000 8000 12000 16000 20000 24000 30000 36000 Qair max (m ∆ Final P (Pa) Synthetic flat filters (G4) Unit sizes 287 x 592 (12"...
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Page 24: Operating Limits
10 - Maintenance (cont'd) Quality of water It is not our policy to make recommandations on water treatment. The use of water without treatment can provoke excessive soiling Contact a local water treatment company regarding this treatment. inside water coil tubes with serious repercussions and damages on unit efficiency. - Page 25 11 - Operating Guidelines (cont'd) Operating limits - Standard forward curved fans Fan wheel sizes Max. speed Max. motor power Unit sizes (rpm) (kW) Option 1 Option 2 ADH 160 L 4200 PR 20 ADH 180 L 4000 ADH 200 L 3800 ADH 200 L 3800...
- Page 26 11 - Operating Guidelines (cont'd) Operating limits - Standard backward curved fans Fan wheel sizes Max. speed Max. motor power Unit sizes (rpm) (kW) Option 1 Option 2 RDH 180 L 6800 PR 20 RDH 200 L 6000 RDH 200 L 6000 PR 40 RDH 225 L...
- Page 27 11 - Operating Guidelines (cont'd) Operating limits - Reinforced backward curved fans Fan wheel sizes Max. speed Max. motor power Unit sizes (rpm) (kW) Option 1 Option 2 PR 20 PR 40 PR 60 PR 90 RDH 400 K1 3500 PR 120 RDH 450 K1 3200...
- Page 28 Notes ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
- Page 30 As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos. Dans un souci d'amélioration constante, nos produits peuvent être modifiés sans préavis. Photos non contractuelles. Wesper S.A. 42 cours Jean Jaurès...
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