10
To
indoor
unit
To
outdoor
unit
Refrigerant Flow Direction
Liquid pipe
Gas pipe
To
indoor
unit
To
outdoor
unit
Refrigerant flow direction
Liquid pipe
Gas pipe
Fig. 12 -- Allowed Refrigerant Flow Direction
Refrigerant Flow Direction
Refrigerant Flow Direction
Fig. 13 -- Refrigerant Flow Direction Not Allowed
c. Once location and flow direction is identified, connect
piping between indoor unit and TXV kit. Flexible pip-
ing is recommended.
!
CAUTION
Failure to follow the following caution may result in equipment
damage or improper operation.
Insulate liquid and vapor pipes connecting to indoor and
outdoor units.
Piping connection ports
(Gas side and liquid side)
Flexible pipings
(Field supplied)
TXV Kit
TXV Kit
Connect to
interconnection pipings
Flexible pipings
(Field supplied)
Refrigerant flow
Direction
Fig. 14 -- TXV Attached to Cassette Body
Piping connection ports
(Gas side and liquid side)
Connection to
outdoor unit
TXV Kit
Flexible pipings
(Field supplied)
maximum length
allowed: 12 - 18 in
A150294
Fig. 15 -- TXV Kit not Attached to Cassette Body
3. Install Suspension Bolts
a. Mark the spots on the ceiling where you want to install
the indoor unit.
b. Drill holes at the marking spots and then insert bolt an-
chors. Use existing ceiling supports or construct a suit-
able support. Use a hole--in--anchor, sunken insert for
existing ceilings.
c. Depending on the type of ceiling, fix the threaded hang-
ers as shown in Fig. 16 and Fig. 17.
d. Insert the washers as shown in Fig. 16 and Fig. 17.
e. Remove the “T” bar in ceiling to facilitate installation.
See Fig. 17. If the “T” bar cannot be removed from the
ceiling, the unit may have to be tilted as shown in Fig.
18.