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CMEV-3 

Continuous Running Ventilation System 

 

Installation Instructions 

 
 

1- General Information 
 
1.1CMEV-3 continuous running 

mechanical extract

 ventilation system, ensures constant ventilation throughout the home 

The 

MEV system

 is designed to be installed in reduced spaces, 

and exhausts

 the stale air via the 

extract

 grilles 

sited 

remotely to 

the main unit

The CMEV-3 delivers 30 m

3

/h through three possible 80 mm connections and one 45 m

3

/h to 135 m

3

/h through 125 mm 

connection.  
It is recommended to use 

passive

 self-

regulating

 air inlets in the 

habitable

 rooms of the dwelling with this apparatus, 

to 

ensure that sufficient replacement air is provided.  
 

1.2 Installation shall be in accordance with the following: 
Building Standards (Scotland) (Consolidation) Regulations. 
Building Regulations. 
Institute of Electrical Engineering (I.E.E) Regulations. 

 
Note: In order to conform to the above regulations, it may be necessary to fit fire dampers or other suitable 
devices. 

 
1.3 The Design, Material selection and Installation must only be carried out by competent ventilation engineers. 
 
1.4 Ancillary Equipment 
Remote fan speed setting switch; a range of internal 

external Grilles, external cowls, ducting. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание CMEV-3

Страница 1: ...mended to use passive self regulating air inlets in the habitable rooms of the dwelling with this apparatus to ensure that sufficient replacement air is provided 1 2 Installation shall be in accordance with the following Building Standards Scotland Consolidation Regulations Building Regulations Institute of Electrical Engineering I E E Regulations Note In order to conform to the above regulations ...

Страница 2: ...than two extract points a collector box should be connected to the unit with a short length of flexible duct 2 3 3 the duct layout must be designed to suit the requirements of the MEV system and building Layout and the protection of fire being transmitted through the ducting by means of suitable fire dampers 2 3 4 Where rigid duct is used it should be installed using the least number of fittings t...

Страница 3: ... allows the unit to extract a greater volume to cope with any increase in the build up of condensation or foul air i e cooking etc 3 3 Before commencing the commissioning procedure refer to the design drawing for correct air flows 3 4 COMMISSIONING PROCEDURE 3 4 1 Turn the electrical supply ON and set the fan speed control to NORMAL 3 4 2 Check the airflows at the grilles to ensure that desired ai...

Страница 4: ...eed for a period of 2 years from the date of purchase of the Product against fault in manufacture In case of such fault in manufacture apparent during the Guarantee Period Greenwood may at its absolute discretion repair the product replace the product free of charge or refund the cost of the product AS LONG AS AND ONLY IF 1 The Product is returned to Greenwood within the Guarantee Period with evid...

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