10 Servicing
10.10 KPI
10.10.1 System description
An example of the system is shown below. Make sure the system has been checked by a HITACHI distributor.
Exchange mode
The air returning from the indoor part passes through the
total heat exchanger unit and is expelled outdoors.
The outdoor air is supplied through the total heat exchanger.
(Factory-set). The operating mode is selected automatically according to the temperature conditions (outdoor, indoor and
set).
10.10.2 Structure and part names
KPI–552H2E
Nº
1
Damper
2
Air conductor connection
3
Fans
4
Electrical box
5
Service door
6
Filters
7
Heat exchanger
8
Electrical box.
KPI-3002H2E
Nº
1
Heat exchanger
2
Unit hangers
3
Electrical box
4
Filters
5
Air conductor connection
6
Filters
7
Fans
350
SMGB0063 rev. 1 - 10/2010
Automatic selection mode
Part
Part
Ventilation bypass mode
The air from indoors is expelled without heat exchange.