Settlement Of Outdoor Unit; Drain Joint Installation; Refrigerant Pipe Connection - INVENTOR AR2MVI32-12WiFi/AR2MVO32-12 Instruction Manual

OUTDOOR UNIT INSTALLATION

Settlement of outdoor unit

Anchor the outdoor unit with a bolt and nut
φ
8 tightly and horizontally on a concrete or rigid mount.
NOTE: The outdoor unit you purchase may be like one
of the following. Install the outdoor unit according to the
dimension as indicated in the table below:
Mounting dim ensions
A (mm) B (mm )
770x5 55x300 4 87 29 8
800x5 54x333 5 14 34 0
845x7 00x340 5 40 35 0
946x810x 420 6 73 40 3

Drain joint installation

NOTE: The drain joint is slightly different
according to the different outdoor unit.
For the drain joint with the seal(Fig.11 (A)), first
fit the seal onto the drain joint, then insert the
drain joint into the base pan hole of outdoor unit,
。
rotate 90 to securely assemble them. To install
drain joint as shown in Fig.11 (B), insert the drain
joint into the base pan hole of outdoor unit until it
remains fixed with a clicking sound. Connecting
the drain joint with an extension drain hose (Locally
purchased), in case of the water draining off the
outdoor unit during the heating mode.
NOTE: In cold areas, do not use a drain hose with
the outdoor unit.(otherwise, drain water may freeze)
φ
10 or
Air inlet
Air inlet
Air outlet
Fig.10
Base pan hole of
Drain joint
Seal
outdoor unit
(B)
Seal
Drain pipe
(A)

Refrigerant pipe connection

NOTE:
The connector parts of connective pipe
must be placed outside of room.
Connective pipe length will affect the
capacity and energy efficiency of the unit.
The nominal efficiency is tested basing on
the pipe length of 5 meters. Consult the
techni cians to purchase proper size
connective pipe for your machine.
1. Flaring work
Main cause for refrigerant leakage is due to defect
in the flaring work. Carry out correct flaring work
using the following procedure:
A: Cut the pipes and the cable.
1. Use the piping kit accessory or pipes purchased locally.
2. Measure the distance between the indoor and the
outdoor unit.
3. Cut the pipes a little longer than the measured distance.
4. Cut the cable 1.5m longer than the pipe length.
B: Burr removal
1. C ompletely remove all burrs from the cut
cross section of pipe/tube.
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
C: Putting nut on
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.(not possible
to put them on after flaring work)
D: Flaring work
Firmly hold copper pipe in a die in the
dimensi on shown in the table below.
A(mm)
Outer diam.
(mm)
Max.
Min.
6.35 1.3 0.7
9.52 1.6 1.0
1.8 1.8
12.7 12.7 1.0 1.0
16 2.0
2.2
OUTDOOR UNIT INSTALLATION
Fig.11
。
90
Oblique Roughness
Fig.12
Pipe
Reamer
Point down
Fig.13
Flare nut
Copper tube
Fig.14
Burr