SYSHRW – Installation Operation Manual (IOM HRW 03 N 13GB)

English
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12 SysHrw
11.2. MODIFYING THE AIR BLOWING DIRECTION
The unit sizes 096 to 120 can be supplied congured 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
conguration 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. Ret the fan access panel
2.
6. Ret the top panel
1.
11.3. FILTER ACCESS
Each unit is supplied with a connection frame also serving as the lter
support. This enables to lter to be removed from the side without
having to dismantle the duct or the connection frame.
11.4. 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 sufcient and recommended. New air should not be introduced directly into the appliance.
Provide for a sufcient distance to ensure effective mixing of the outdoor air with the return air. (Refer to
"Operating limits").
The ow / static pressure adjustment is made with the aid of a variable pulley. When adjusting this pulley,
it is important to ensure that the belt is positioned properly. The pulleys / belt assembly must be aligned
perfectly and the belt tensioned in accordance with best practices.
11.5. AERAULIC ADJUSTMENT
11.5.1. MODEL SYSHRW096
0. Pulley close 0 round
1. Pulley open 1 round
2. Pulley open 2 round
3. Pulley open 3 round