OPEN
DRAIN
SLOPE
20 mm PER m
MINIMUM
(1 IN 50)
100 mm
MINIMUM
200 mm
APPROX.
'U' TRAP
Fig. 5
Condensate Drain
Fig. 4
Roof Mounting Plinth (Kitset)
SUPPLY
& RETURN AIR FLOWS
PLINTH
PLINTH
OUTDOOR
AIR FLOW
Fig. 3
Downward Supply Air / Plinth Mounted
Version 3
NOTE
The manufacturer reserves the right to make
changes in specifications at any time without
notice or obligation. Certified data is available
on request.
Note
:
Refer to Fig.1 for overall dimensions and
Fig.4 for further plinth dimensions.
OPA 390R
DIMENSIONS (mm)
Not to Scale
PROJECTION
125
60
471
RETURN
AIR
447
800
558
53
321
53
53
53
SUPPLY
AIR
1344
INSIDE
1599
INSIDE
OPA UNIT
SEALER
STRIP
(SUPPLIED)
ROOF MOUNTING
PLINTH
53
125
FLASHING
ROOF
MOUNTING
50
MAXIMUM
TYPICAL CORNER ASSEMBLY
FLASHING
INSEAL
PLINTH
ASSEMBLY
ANGLE &
HOLD DOWN BRACKET
SECURED TOGETHER
WITH NUT & BOLT
OPA UNIT’S
SUPPORT ANGLES
HOLD DOWN BRACKET
This pamphlet replaces the previous
issue no. 2235 dated 06/03.
OUC added, wiring revision.
