SYSHRW – Installation Operation Manual (IOM HRW 01 N 21GB)

English
E
H
E
G
F
D
D
F
IN LINE BLOWING
(STANDARD CONFIGURATION)
REAR BLOWING
RETURN AIR INTAKE
47
M
K
J
1
2
3
12 SYSHRW
11.1. CONNECTION FRAME DIMENSIONS
11.1.1. AIR BLOWING FRAME AND RETURN AIR INTAKE FRAME
11.2. MODIFYING THE AIR BLOWING DIRECTION
The unit sizes 019 to 072 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").
D E F G H
19
249 249 102 117 160
27-30-36
299 249 109 144 196
42
299 249 124 165 259
48-60-72
299 349 166 110 215
J K M
19
345 582 280
27-30-36
365 682 331
42-48-60-72
419 882 331