Hitachi KPI Installation And Operation Manual page 24


NOTE:
In case of that the sling bolts are too short, re-attach the
suspension bracket in an alternative position.
1. Remove the screws at the top mounting position.
2. Remove the suspension bracket and attach them at higher
mounting position.
3. Tighten up the screws in the screw hole where the suspension
brackets were removed in order to prevent air leaks.
KPI Unit
Nut
Washer
Rubber Isolator
Example: KPI-(502~2002)(E/H)2E

NOTE:
In case of installing the heat recovery series (KPI-(502~3002)H2E) the
unit must be installed as shown in the figure to ensure a good draining.
13.3. ATTACHING THE DUCT CONNECTING FLANGES
Use the screws supplied to secure the duct connecting flanges to the unit.

CAUTION
Before attaching the duct connecting flanges, check that no
foreign matter (scraps of paper, vinyl, etc.) has found its way
inside to KPI unit.
Attach the duct connecting flanges in every duct connection.
24
PMML0185 rev.1 - 03/2010
Anchor Bolt
5 mm
13.4.CONNECTING SUPPLY DUCT
The supply duct should be connected with the unit through
flexible duct, in order to avoid abnormal sounds and vibration.
The unit is equipped with a pre-drilled duct flange for the
supply duct connection.
1. Set the supplied rubber duct joint to each duct adapter to assure a
good junction of the ducts.
2. Fit the ducts securely into the duct connecting flanges, and wind
aluminium tape available from hardware store to prevent air leaks,
also duct connection flanges have their own sealing installed.
3. Suspend the ducts from the ceiling so that their weight will not be
applied to the unit.
4. The two outdoor ducts must be covered with heatinsulating material
in order to prevent condensation from forming.
KPI-(502~2002)(E/H)2E
Anchor bolt
Heat Exchanger Cover
Filter Access Door
Duct
KPI-3002H2E
Anchor bolt
Terminal box
Duct
Fan
Heat-Insulating material
Outdoor Duct
Duct connecting flange
INSTALLATION
Terminal box
Duct Connection Flange
Fan
Filter Access Door
Duct Connection Flange
Heat Exchanger Cover
Flange
Unit