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1.  General information

1.1.  Note symbols

Danger

Immediate danger
Failure to observe the warning will result directly in 

death or serious injury.

Caution

Hazard with low risk
Failure to observe the warning may result in 

moderate injury.

Warning

Potential danger
Failure to observe the warning may result in death or 

serious injury.

Important

Danger with risk of property damage
Failure to observe the warning may result in 

damage to property.

Note

Useful information and instructions

2.  Important safety instructions

Planners, plant constructors and operators are responsible for proper installation and operation in accordance with the 

intended use.

• 

Read the operating instructions completely and carefully.

• 

Operating instructions and other applicable documents, such as electrical connection diagrams or operating 

instructions for the motor, must be kept with the fan. They must be available on site at all times.

• 

Local and national laws and regulations must be observed and complied with.

• 

Consider the plant-relevant conditions and requirements of the plant manufacturer or plant builder.

• 

Safety devices must not be dismantled, bypassed or rendered inoperative.

• 

The fan may only be used when in perfect condition.

• 

The generally prescribed electrical and mechanical protective devices must be provided.

• 

During installation, electrical connection, commissioning, troubleshooting and maintenance, secure the installation 

site and the premises against access by unauthorized persons.

• 

Safety devices must not be dismantled, bypassed or rendered inoperative.

• 

Ensure that all warning labels on the fan are complete and legible.

• 

This appliance is not intended for use by persons (including children) with reduced physical or mental capabilities, 

or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the 

appliance by a person responsible for their safety.

• 

Children are not allowed to play with the device.

2.1.  Personal

The fan may only be operated by qualified, instructed and trained personnel. These persons must know the relevant safety 

regulations in order to recognize and avoid possible dangers. The individual actions and qualifications can be found in Table 

1 Qualifications, page 3.

Summary of Contents for WDV-A 355 EC

Page 1: ...Roof fan TYPE WDV Assembly and operating instructions Version 6 1 B05...

Page 2: ...r data 7 5 5 Intended use 7 6 Nameplate and type key 7 7 Accessories 7 8 Installation 7 9 Installation of the ventilation system 8 9 1 Assembly disassembly of impeller internal rotor motor WDV A serie...

Page 3: ...ant conditions and requirements of the plant manufacturer or plant builder Safety devices must not be dismantled bypassed or rendered inoperative The fan may only be used when in perfect condition The...

Page 4: ...ipment Wear protective equipment during any work in the vicinity of the fan Protective clothing Safety shoes Protective gloves Safety helmet Safety goggles Hearing protection 2 3 The 5 safety rules fo...

Page 5: ...re that no water can penetrate the motor or other sensitive components It is recommended that the fan be transported to the installation site in its original packaging Caution Careless loading or unlo...

Page 6: ...e maximum fluid temperature is 60 C for series WDV K 5 3 Description roof fans A B E D C F G I J 4x H M20x1 5 Table dimensions roof fans TYPE A Dimen sions in mm WDV A 355 EC WDV A 400 EC WDV A 450 WD...

Page 7: ...air outlet discharge Motor in air flow Not suitable for commercial kitchens which must be executed according to VDI 2052 All types Improper use is mainly when the fan is used in a way other than desc...

Page 8: ...t the fan and all its components are undamaged Make sure that there is sufficient space for mounting the fan When mounting the device protect it from dust and moisture Make sure that the specification...

Page 9: ...ed directly before or after the fan A uniform and constant air flow to the unit must be ensured Free exhaust air must be ensured Rectangular duct system D Hydraulic diameter Round duct system D nomina...

Page 10: ...ble Allen key suitable extraction tool torque wrench for the clamping bush 1 Motor 2 Motor shaft 3 Sleeve Not used with every fan 4 Shaft extension Not used with every fan 5 Hexagon socket screw 6 Imp...

Page 11: ...ched on and off via the control input Screw down the cover of the terminal box revision switch evenly Use all locking screws Connect the cable end in a dry environment Install a permanent disconnectin...

Page 12: ...0 Hz The heating of the motor when using a frequency converter must be checked by the customer in the application Never exceed the maximum impeller speed specified on the fan nameplate 11 Commissionin...

Page 13: ...ructions for the motor 13 Troubleshooting Maintenance Repair 13 1 Safety instructions Troubleshooting maintenance repair may only be performed by appropriately qualified persons for details see Table...

Page 14: ...EC check that all 3 phases are present Engine overheating Check impeller cooling if present check resistance of motor windings if possible contact Walpol Capacitor if used not or not correctly con nec...

Page 15: ...Clean the fan ventilation system see 14 Cleaning X X Check the screw connections for tightness and for damage defects X see normal operating conditions Make sure that the fan inlet is free of debris X...

Page 16: ...material is recycled Observe the national regulations The device and the transport packaging consist mainly of recyclable raw materials Disassemble the fan into its component parts Separate the parts...

Page 17: ...control Transformer Frequency converter Sine filter Shielded cables Motor protection Yes No Motor protection switch or motor protection relay PTC thermistor Resistance value Thermal contact Electric...

Page 18: ...phase fans enter in line Current L1 A pressure between suction and discharge side of the fan If a volume flow measurement is not possible the value can be calculated using the following formula X Duc...

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