Envirovent PIV - MIV Installation Instructions; Twin Spigot Installation

PIV & MIV
®
Loft Mounted Unit
Twin Spigot
This addition to the xing 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 lls the hallway ceiling
Air is required to be diused 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 airow:
i. Equal air supply required - diusers equidistant from unit
ii. More air supply required in hallway - short run to diuser in the hall
(This is the recommended method of installation)
Connect the exi ducting to the twin spigot and hold in position with a cable tie on each outlet.
MIV
®
INSTALLATION INSTRUCTIONS
MIV
®
TWIN SPIGOT INSTALLATION
Example of installation: More air is required in hall - shorter run
HALL
Vent One
BEDROOM
Vent Two
Contents for unit
with heater
1 x Fixing kit
1 x Unswitched fuse spur
2 x Mini diuser
1 x Cable tie
1m x 3m x 100mm
Flexi duct
Additional contents for
unit with heater
1 x Heater enable switch
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