Installation and Maintenance
TWINFAN CONTROL
2
Single Phase application
400V 3 phase
Mains Supply
to Fan
Mains controller
Four core & earth
230V cable connection
required to control
230V 1 phase
Mains Supply
to Control
Single Phase 230V
Mains Supply into
Control
4 core & earth
230V cable connection
to fan
Twinfan
control
NuAire QTI Twinfans
Control Applications
NuAire QTE & QTR Twinfans
BELT DRIVE
Mains controller
Four core & earth
230v cable connection
required to fan.
Single Phase
230V Mains supply
to Control
Single Phase application.
Three Phase application.
N L L SL L FL L1 L2 N H
BL RD BK Y
RUN FAULT
Connection
for speed
control
(Link must be
removed when
using a speed
control)
1 phase fans
only
L1 L2 N H
QUIETWIN FAN Single phase
230v MAINS CONTROL
230V 1 phase
supply
NOTE:
supply to fan is via the control
Link
Link
NET
CT-AVI
- Audible / Visual
Indicator
connection
230V
Switched Live
Connection
(twinfan operates
when live, remove
link when used)
Volt Free
Contacts
Rated 230V 5A
(for run indication
if required)
Volt Free
Contacts
Rated 230V 5A
(for fail indication
if required)
4 core
& Earth
Cable
CONNECTION BOX IN FAN
Single Phase
Quietwin units
wiring diagram
Figure 3.
Control Applications
Figure 4.
