PVA Installation Manual

7
8. Duct connection
- See the outline drawing for the size of the duct connection.
- Use anged ducts for connections to return
- Do not use sheetmetal screws longer that 0.75” to secure any
ductwork to the air handler
DIM.mm
CHANGE
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
16151413121110 987654321
16151413 121110 987654321
SCALE
13
NTS
COMMERCIAL TOLERANCE
WORK GRADE
CASTING
FINE COARSE
PRESS WORKING
GAS CUTTING
A B
SHEARING A B
MACHINING
MEDIUMCOARSE
ED
CBA
MITSUBISHI ELECTRIC CORPORATION
0.75" MAX
DATE APPROVED
DRAWN
CHECKED
DESIGNED
3D
CONFIDENTIAL
ITEM MODEL NAME
1:5
Creo : 0_TOP_ASSY_L_21554B2.drw ( )
The parts are required to meet the latest RoHS directive.
The air handler can be installed in a vertical, horizontal (Right and
Left) and Downow conguration as shown in step 9.1. through 9.4.
The units are designed for “0” zero clearance to combustibles. 24” is
required for service access to the front of the unit. (See Installation
Clearance) Regardless of mounting conguration, the air handler
must be mounted level to facilitate proper condensate drainage.
Installation Clearance
PA79D202H01
6
4. Indoor unit accessories
Part No.
Qty
1
Plastic tie
4
2
Plastic tube
2
3
Installation Manual
1
4
Operation Manual
1
5. Selecting an Installation Site
• Avoid locations exposed to outside air.
• Select a location free of obstructions to the airflow in and out of
the unit.
• Avoid locations exposed to steam or vapor
• Avoid locations where combustible gas may leak, settle or be
generated.
• Avoid installation near machines emitting high-frequency waves
(high frequency welders, etc.).
• Avoid locations where the airflow is directed at a fire alarm
sensor. (Hot air could trigger the alarm during operation)
• Avoid places where
acidic solutions are frequently used.
• Avoid places where sulphur-based or other sprays are
commonly used.
• When the air handler is installed in the horizontal position please
install a drain pan under entire cabinet.
• Install sufficient thermal insulation to prevent condensation from
forming on the outlet and inlet ducts.
6. Combining indoor units with outdoor units
-For combining indoor units with outdoor units, refer to the
outdoor unit’s installation manual.
7. Installing the Unit
The air handler can be installed in a vertical, horizontal (Right and
Left) and Downflow configuration as shown below. The units are
designed for “0” zero clearance to combustibles. 24” is required for
service access to the front of the unit. (See below) Regardless of
mounting configuration, the air handler must be mounted level to
facilitate pr
oper condensate drainage.
Installation Clearances
TOP View
Horizontal Installation
24"
24"
Width of Unit
TOP View
Vertical Installation
Length of Unit
Clearance Area
Clearance Area
8. Duct Connection
-See the outline drawing for the size of the duct connection.
-Use flanged ducts for connections to return
-Do not use sheetmetal screws longer that 0.75” to secure any
ductwork to the air handler
9.A. Vertical Installations: The air handler must be
supported on the bottom only and set on a solid floor with a return
plenum below or field supplied supporting frame or plenum.
Securely attach the air handler to the floor or supporting frame or
plenum.
The side return can be used for the PVFY-12, PVFY-18 & PVFY-
24 only. If the side return is used it is the responsibility of the
installer to ensure the ducts are properly sized and sealed to
the cabinet. When cutting in to the side of the cabinet, use the
provided dimples to avoid damaging any internal structure or
wiring.
Side Return
Unit Mounted on Return Plenum
7. Installing the unit