17/30
4.5.4 Ducted
air
outlet
on VCH/HCH units
(std. option 206.1)
In this situation, the unit is delivered
without nozzle boxes (option 203) or outlet
discharge plenum (option 203.3). The
ducts must be connected to the air outlet
(on top of the heater for vertical model or at
the left side of the heater for horizontal
models). Respect the dimensions for the
duct air outlet and for the flange as
indicated in table 10a & 10b.
Table 10a (refer to fig. 8) : duct dimensions required for ducted outlet on VERTICAL model (VCH)
VERTICAL MODEL VCH
Duct flange dimensions
(mm)
Duct channel dimensions
(mm)
Frame
Model
Width DA1
Depth DA2
Width DB1
Depth DB2
I
100/150 761 509 721 469
II
200/300 761 755 721 715
III
400/500
691 1054 651 1014
IV
600/700
1082 1201 1042 1161
V
800/1000 1082 1400 1042 1360
Table 10b (refer to fig. 8) : duct dimensions required for ducted outlet on HORIZONTAL model (HCH)
HORIZONTAL MODEL HCH
Duct flange dimensions
(mm)
Duct channel dimensions
(mm)
Frame
Model
Height DA1
Depth DA2
Height DB1
Depth DB2
I
100/150 761 509 721 469
II
200/300 761 755 721 715
III
400/500
691 1054 651 1014
IV
600/700
1082 1201 1042 1161
V
800/1000 1082 1400 1042 1360
Attention must be given to the motor load when applying discharge ducting. Duct outlets must be adjusted when
necessary to meet the values mentioned in table 9.
4.5.5
Ducted air inlet on VCH/HCH units
The unit is designed so that it can be
installed with inlet air ducts.
Vertical units :
Option 541.1 = left
Option 541.2 = right
Option 541.3 = rear
Horizontal units :
Option 541.4 = end
Option 541.5 = top
Option 541.6 = rear
Option 541.7 = bottom
To enable free blowing of the air into the
blower system,
it is forbidden to install air
baffles or elbows in the last part (
!
0.75m) of
the duct connected to the heater
.
Respect the normal motor current as shown in
table 9 as a normal motor current guarantees
a normal airflow and a normal
∆
T. Respect
dimensions for duct air inlet and for the flange
as indicated in table 11a & 11b
Attention : Never install the inlet air ducts
in combination with the standard
protection air inlet grille. This situation
may constitute a hazard & jeopardise all
warranties
.
Table 11a (refer to fig. 10)
VERTICAL MODELS VHC
Duct flange dimensions
(mm)
Duct channel dimensions
(mm)
Frame Model
Option
Height DA3
Width DA4
Height DB3
Width DB4
541.1 (left
541.2 (right)
441 509 401 469
I 100/150
541.3
(rear)
441 761 401 721
541.1 (left)
541.2 (right)
512 755 472 715
II 200/300
541.3
(rear)
512 761 472 721
541.1 (left)
541.2 (right)
596 1054 556 1014
III 400/500
541.3(rear)
596 691 556 651
541.1 (left)
541.2 (right)
707 1201 667 1161
IV 600/700
541.3
(rear)
707 1082 667 1042
541.1 (left)
541.2 (right)
596 1400 556 1360
V 800/1000
541.3
(rear)
596 1082 556 1042
