Nash Elmo G 400 Series Operating Instructions Manual Download Page 14

 
 

 

 

 

nash_elmo Industries GmbH 

14 / 23 

 

Order No.: 610.44436.40.000 

Subject to change 

 

 

Edition 09/2003 

 

Installation

Vertical mounting on the wall 

With vertical mounting of the pump-motor unit 
on the wall, the pump-motor unit is mounted 
via the holes in the base. 

Proceed as follows: 

• 

Position the pump-motor unit as close to 
the wall as possible on a stable supporting 
plate with sufficient load-bearing capacity. 
The pump-motor unit must be positioned 
with the base toward the wall. 

• 

Provide the base of the pump-motor unit 
with mounting holes. 

• 

Select the suitable screw type. 

• 

Screw the base of the pump-motor unit to 
the wall with the screws. 
When doing so, be sure to provide 

all

 

mounting holes with screws! 

• 

Remove the supporting plate. 

 

Eye bolt:  

Following installation, the eye bolt must be 
either firmly tightened or removed. 
 
 

5.2 

Electrical connection (motor) 

 

  DANGER 

Electrical danger! 

Improper behavior can result in severe injuries 
and material damage! 

 

 

  DANGER 

Electrical danger! 

The electrical connection may be carried out 
by trained and authorized electricians only! 

 

 

  DANGER 

Electrical danger! 

Before beginning work on the unit or system, 
the following measures must be carried out: 

• 

Deenergize. 

• 

Secure against being switched on again. 

• 

Determine whether deenergized. 

• 

Ground and short-circuit. 

• 

Cover or block off adjacent energized parts.

 

 

CAUTION 

Incorrect connection of the motor can lead to 
serious damage to the unit! 

 

Regulations: 

The electrical connection must be carried out 
as follows: 

• 

according to the applicable national and 
local laws and regulations, 

• 

according to the applicable system-
dependent prescriptions and requirements, 

• 

according to the applicable regulations of 
the utility company. 

 

Electrical power supply: 

Observe the 

rating plate

It is imperative that the operating conditions 
correspond to the data given on the rating plate! 

Deviations permissible without reduction in 
performance: 

• 

±5 % voltage deviation 

• 

±2 % frequency deviation 

 

Connection to drive-motor terminal box: 

Open the required cable entry openings on the 
terminal box. Here the following two cases are 
differentiated: 

• 

The cable entry opening is prefabricated 
and provided with a sealing plug. 

• 

Screw out sealing plug. 

OR  

• 

The cable entry opening is closed off with a 
casting skin (only on pump-motor units with 
drive-motor axis heights of 100 to 160 in 
standard design). 

• 

Break out casting skin using a suitable tool. 
For example, use a metal pin with a 
corresponding diameter or a chisel and 
hammer. 

 

CAUTION 

When pounding out the casting skin on the 
cable entry openings in the terminal box, the 
terminal box or its parts can be damaged (e.g. 
terminal board, cable connections). 
Proceed with suitable caution and precision 
when doing so! 
Prevent flash formation! 

 

Summary of Contents for G 400 Series

Page 1: ...n 09 2003 English Phone 49 911 1454 5268 Fax 49 911 1454 5252 E mail service nash elmo com Internet www nash elmo com Gas Ring Vacuum Pumps Compressors Operating Instructions Series G_400 Models 2BH7...

Page 2: ...llation 12 5 2 Electrical connection motor 14 5 3 Connecting pipes hoses vacuum pump compressor 16 5 3 1 Inlet connection 17 5 3 2 Discharge connection 17 5 3 3 Procedure when connecting pipes hoses 1...

Page 3: ...ld result in death or serious injury if the corresponding measures are not taken CAUTION Danger of injuries Indicates a potentially hazardous situation that may result in minor or moderate injury if t...

Page 4: ...ng parts external fan impeller shaft Cutting cutting off of extremities Grasping winding up of hair and clothing Danger due to vacuum and gauge pressure sudden escape of fluids skin and eye injuries s...

Page 5: ...Residual risks WARNING Danger zone Hot surface up to approx 160 C 320 F Hazard Possible burns Protective measures Cover the pump motor unit with a suitable touch protection e g perforated plate cover...

Page 6: ...t in the following designs single impeller single stage two impeller two stage three impeller three stage Increased pressure differences can be achieved with the two impeller and three impeller pump m...

Page 7: ...H75 approx 52 approx 2 05 2BH76 approx 53 approx 2 09 Minimum distance to vacuum pump compressor cover Minimum distance to face of vacuum pump compressor cover mm inches 30 1 18 Vibrations The followi...

Page 8: ...approx 142 2BH7310 0 2 approx 86 approx 187 2BH7410 0 1 approx 101 approx 214 2BH7510 0 1 approx 111 approx 232 2BH7510 0 2 approx 112 approx 234 2BH7610 0 1 approx 124 approx 255 2BH7610 0 3 approx...

Page 9: ...3 4 2 21 2 95 M20x1 5 4 5 2 95 3 69 M32x1 5 M40x1 5 5 7 3 69 5 16 3 2 Electrical data See rating plate 3 3 Operating conditions Temperatures max permissible temperature 40 C 104 F Nominal value 15 C...

Page 10: ...oes and protective helmet during transport WARNING Danger from tipping or falling loads Prior to transport and handling make sure that all components are securely assembled and secure or remove all co...

Page 11: ...lectrical device cannot be damaged by external influences In particular the feed pipes must be securely routed e g in cable ducts in the floor etc WARNING Danger from balance damage caused by vibratio...

Page 12: ...differs from the following specifications it is necessary to inquire with the Service Department Ambient conditions The pump motor unit is suitable for installation in the following environments In a...

Page 13: ...the pump motor unit the following variants are possible with a different axis position horizontal or vertical Horizontal installation Vertical installation on the vacuum pump compressor cover cover in...

Page 14: ...und and short circuit Cover or block off adjacent energized parts CAUTION Incorrect connection of the motor can lead to serious damage to the unit Regulations The electrical connection must be carried...

Page 15: ...protective conductor the outer ground conductor Both conductors can be recognized from their color green yellow DANGER Electrical danger The terminal box must be free from foreign bodies dirt humidit...

Page 16: ...d reasons and must be mounted by the operator Fig 3 2BH722 2BH762 two impeller pump motor units with two stage design Fig 4 2BH723 2BH763 three impeller pump motor units with three stage design WARNIN...

Page 17: ...the related muffler Fig 1 Pg 2 Item 3 is marked with an arrow pointing into the vacuum pump compressor Connect the inlet pipe here The pumped gases are sucked in via this Procedure see Chapter 5 3 3 W...

Page 18: ...again after a longer standstill Measure the insulation resistance of the motor With values 1 k per volt of nominal voltage the winding must be dried Measures before start up If a shut off device is in...

Page 19: ...piping attach an additional muffler 6 2 Start up and shut down Start up Open shut off device in intake discharge pipe Switch on power supply for drive motor Shut down Switch off power supply for drive...

Page 20: ...nt must provide the following conditions dry dust free low vibration effective value of vibration speed veff 2 8 mm s 0 11 sec Ambient temperature max 40 C 104 F CAUTION Danger of overheating due to h...

Page 21: ...ck or correct impeller gap setting if necessary Service Impeller defective Replace impeller Service Motor does not start humming noise Rolling bearing on drive motor side or vacuum pump compressor sid...

Page 22: ...e procedure described in Chapter 9 3 Decontamination and Declaration of Clearance Pg 22 must be used The original rating plate of the pump motor unit must be properly mounted intact and legible All wa...

Page 23: ...ery Part 1 Principles and specifications for machinery manufacturers DIN EN 1012 1 Compressors and vacuum pumps Safety requirements Part 1 Compressors DIN EN 1012 2 Compressors and vacuum pumps Safety...

Reviews: