Dimensions (mm)
Unit
Unit
Prefab
Code
Code
Code
A
B
C
D
E
F
G
QTR A
QTE A
QTPFC 4
767
767
947
947
837
837
75
QTR B
QTE B
QTPFC 5
973
973
1203
1203
1064
1064
100
QTR C
QTE C
QTPFC 6
1169
1375
1399
1605
1268
1471
100
Prefabricated Curb
Manufactured in aluminium alloy these curbs will reduce design work
and guarantee correct unit mounting when on site.
Note: Upper faces of curb are fitted with robust sealing strip.
CODES: QTPFC* (typical)
Dimensions (mm)
Unit
Unit
Prefab
Code
Code
Code
A
B
C
QTR*A
QTE*A
QTPFC 4
934
934
305
QTR*B
QTE*B
QTPFC 5
1233
1233
305
QTR*C
QTE*C
QTPFC 6
1374
1580
305
Outlet
spigot
Fixings
Unit
support base
Fixing
surround
Plinth/
Upstand
.
Unit Plan
Section Through Unit
Support Base
Removable
top covers
Unit support
base
Inlet
spigot
2500
2315
200
1200
1200
200
min100
min
75
50
1790
2490
.
Unit Weight and Fixing
Size D units
For unit weights see electrical
information tables.
Substantial support and fixings
are important due to the units
weight and to avoid the motor
start torque damaging the
support base.
.
.
1740 x 2440
Timber capping
(fixing surround)
Timber capping
(fixing surround)
Brick upstand or
concrete plinth
Floor/Roof
construction
Brick upstand or
concrete plinth
Brick/Concrete Upstand (Section)
Brick/Concrete Upstand
c/w Timber Capping
(General View)
100min
150
Min
1740
2440
150
min.
100 min.
5
Installation and Maintenance
QUIETWIN QTR BELT DRIVE TWINFAN
Table 8.
Table 9.
A
B
C
Fig. 5.
Roof Opening and Curb Dimensions
Fig. 6.
NOTE:
The above Builders Work Details are for guidance only.
Fixing Details for larger (‘D’ size) units (Fig. 7)
Fig. 8a.
Fig. 8b.
