Miv Installation Instructions; Twin Spigot; Miv Twin Spigot Installation - Envirovent PIV Installation And User Manual

MIV INSTALLATION INSTRUCTIONS
®

Twin Spigot

This addition to the fixing instructions explains the methodology of installing the twin spigot system.
This variation to the EnviroVent Loft Mounted Unit is necessary where:
The hallway is very small, particularly when there is limited heating in the house
The loft hatch fills the hallway ceiling
Air is required to be diffused into a remote zone, such as a bedroom
Cut two 105mm holes in the ceiling in the positions chosen where air is required to be delivered. Use
the 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 the hall
(This is the recommended method of installation)
Connect the flexi ducting to the twin spigot and hold in position with a cable tie on each outlet.
MIV TWIN SPIGOT INSTALLATION
®
Example of installation: More air is required in hall - shorter run
07
PIV & MIV
HALL
Vent One
BEDROOM
Vent Two
Loft Mounted Unit
®
Contents for unit
with heater
1 x Fixing kit
1 x Unswitched fuse spur
2 x Mini diffuser
1 x Cable tie
1m x 3m x 100mm
Flexi duct
Additional contents for
unit with heater
1 x Heater enable switch