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PIV & MIV

®

 Loft Mounted Unit

INSTALLATION INSTRUCTIONS

IMPORTANT

Be sure to have read and understood these 

instructions before beginning the installation 

process.

Smoke Detectors

It is important that any open side of the plastic 

diffuser  is  not  positioned  within  1m  of  a  smoke 

detector.  If  the  diffuser  cannot  be  repositioned, 

up  to  two  sides  of  the  diffuser  may  be  closed 

off using the plastic blanking plate supplied (Loft 

only) so that the open sides face a minimum 1.5m 

unobstructed path away from the detector. In 3 

floor  properties  a  metal  fire  diffuser  should  be 

fitted  at  minimum  of  1m  from  the  detector  (see 

page 8).

SAFETY AND RECOMMENDATIONS

•  All wiring must comply with Building 

Regulations and the current I.E.E. Wiring 

Regulations  (BS7671)  or  the  equivalent 

standards for your country. The final installation 

should be examined and tested by a qualified 

electrician.

•  Precautions must be taken to avoid the back-

flow of gases into the dwelling from the open 

flue of gas or other fuel-burning appliances.

•  Make sure the mains supply complies with the 

rating label for voltage, frequency and phase.

•  This appliance can be used by children aged 

from 8 years and above and persons with 

reduced physical, sensory or mental capabilities 

or lack of experience and knowledge if they 

have been given supervision or instruction 

concerning use of the appliance in a safe way 

and understand the hazards involved. Children 

shall not play with the appliance. Cleaning 

and user maintenance shall not be made by 

children without supervision.

03

Summary of Contents for MIV

Page 1: ......

Page 2: ...l operate continuously for 5 years and beyond without a major service Please therefore ensure that this product is treated with care and installed properly i e for the life of the building If the unit...

Page 3: ...e flue is in a poor state of repair Check for any flued appliance which may draw air from the loft report to the client Check for any holes in the ceilings which may allow leakage of air to the loft a...

Page 4: ...t comply with Building Regulations and the current I E E Wiring Regulations BS7671 or the equivalent standards for your country The final installation should be examined and tested by a qualified elec...

Page 5: ...se refer to the fixing instructions figure 1 on page 5 650mm x 50mm x 25mm batten Ceiling joists 405mm Contents for unit 1 x Cardboard template 1 x Diffuser 1 x Fixing kit 1 x Unswitched fuse spur 1m...

Page 6: ...the house size and check that the filters are securely in place SIXTH STAGE Method of operation Adjust the settings on the top of the unit by pressing the house setting button By pressing the button...

Page 7: ...Next press moves the unit to the next speed and so on When the speed is chosen the LED remains on for a few seconds If the two LEDs situated just above the button flash alternately red and green when...

Page 8: ...distance from the Loft Mounted Unit to each hole to balance favour airflow i Equal air supply required diffusers equidistant from unit ii More air supply required in hallway short run to diffuser in...

Page 9: ...should be checked at installation to ensure proper function The diffuser should be periodically checked to ensure they have not been activated and that they are still delivering air into the property...

Page 10: ......

Page 11: ...oors uncarpeted floorboards lofts without insulation and so forth Improved building features such as cavity wall insulation double glazing and draft proofing prohibit natural ventilation Stale humid a...

Page 12: ...into a home via a single input usually located in a central landing PIV Loft or via twin inputs located in a central landing and another area of the home MIV Loft How does my Loft Mounted Unit help I...

Page 13: ...r reduce heating costs No need to open windows To reduce humidity and condensation during the heating season significant energy loss occurs by opening windows The Loft Units provides fresh filtered ai...

Page 14: ...ed from durable materials There should be no requirement for any maintenance within the five year period At the five year service the loft filter located on the unit must be replaced to ensure maximum...

Page 15: ...not working correctly you can telephone the number shown at the bottom of this page operational from 8 30am to 5 00pm Monday to Friday and ask for technical assistance Serial number of the unit We ap...

Page 16: ...2 8PA T 01423 810 810 F 01423 301 022 E info envirovent com www envirovent com AFTER INSTALLING THIS FAN PLEASE PASS ONTO END USER DO NOT THROW AWAY Please read carefully to ensure simple installation...

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