English
1
2
3
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
Air flow (m
3
/h)
Available pressure
(P
a)
Ductwork curve
LS
MS
HS
12 SYSHRW
10.2. MODIFYING THE AIR BLOWING DIRECTION
The unit sizes 019 to 072 can be supplied configured for either frontal air
blowing, known as "IN LINE", or for side air blowing, known as "REAR".
It is also possible to modify the air-blowing configuration on site. To
achieve this:
1.
Remove the top panel
1
.
2.
Remove the fan motor access panel
2
and release a small length
of motor cable.
3.
Remove the fan blower panel
3
.
4.
Fit the fan blower panel
3
in the same location as the access
panel
2
.
5.
Refit the fan access panel
2
.
6.
Refit the top panel
1
.
10.3. FILTER ACCESS
Each unit is supplied with a connection frame also serving as the filter
support. This enables to filter to be removed from the side without
having to dismantle the duct or the connection frame.
10.4. VENTILATION
An outdoor air intake (new air) may be required for ventilation. The blown air temperature must be
controlled in order to avoid the temperature of the mixture of outdoor air and return air at the heat pump
inlet exceeding the appliance’s operating limits. It is also common practice to shut down ventilation during
periods of inoccupation (night time setting of the set temperature).
Each appliance’s ventilation system is generally a sub-system within the building, with its own distribution
duct network. The simple introduction of outdoor air into each return air plenum, quite close to the unit’s
return air intake is sufficient and recommended. New air should not be introduced directly into the appliance.
Provide for a sufficient distance to ensure effective mixing of the outdoor air with the return air. (Refer to
"Operating limits").
10.5. AERAULIC ADJUSTMENT
10.5.1. MODEL SYSHRW19
