Hisense AVWT-72FHFSHA Instrucciones De Montaje página 10

○ : interchangeable with current R22
× : Prohibited
Interchangeability
with R22
Measuring Instrument
and Tool
R407C
Pipe Cutter
Chamfering
Reamer
Flaring Tool
Extrusion －
Adjustment
Gauge
Pipe Bender
Refrige- Expanding
rant
Tool
Pipe
Torque
Wrench
Brazing Tool
Nitrogen Gas
Lubrication Oil
(for Flare
Surface)
Refrigerant
Cylinder
Vacuum Pump
Adapter for
Vacuum
Interchangeable
PumpReverse
with R410A
Flow prevention
Refrige-
rant
Control Valve
Charge
Charging
Vacuum
Hose
Drying
Charging
Cylinder
Weight Scale
Refrigerant
Gas Leakage
Interchangeable
Detector
with R410A
※ interchangeable with R407C
2.Before Installation
Line-Up of Outdoor Unit
【Basic Unit】
Capacity
72(6RT)
kBtu/h(RT)
Model AVWT-72FHFSHA
Capacity
192(16RT)
kBtu/h(RT)
AVWT-192FHFSHA
Model
R410A
○
○
R410A requires high pressure resistance piping and
*
○ ○■
larger flaring. In case of material 1/2H, flaring is not
available.(The flaring tools for R410A are applicable to
R407C)
- ■
In case of material 1/2H, bending is not available. Use elbow
*
○ ○
for bend and braze.
In case of material 1/2H, expanding of tube is not available.
*
○ ○
Use joint for connecting tube.
For Φ1/2in., Φ5/8in. of R410A, spanner size is up to 5/64in.
■
*
○
○
For Φ1/4in.，Φ3/8.、Φ3/4in., spanner size is the same.
*
Perform brazing work properly (adjustable flame and heating
*
○ ○
method, filler applicable)
Strict control against contamination (Blow nitrogen during
*
brazing.)
○ ○
Use a synthetic oil which is equivalent to the oil used in the
*
refrigerant cycle.
●
■
Synthetic oil absorbs moisture quickly.
*
Check the cylinder for the corresponding refrigerant.
*
★Liquid refrigerant charging is required regarding zeotropic
● ■
refrigerant.
★The current pumps are applicable. However, it is required to
○
○
mount a vacuum pump adapter which can prevent reverse flow
● ※■
when a vacuum pump stops, resulting in no reverse oil flow.
No interchangeability is available due to higher pressures
● ■
*
when compared with R22. Connection diameter is different:
R410A: UNFl/2, R407C: UNF7/16
★Do not use old ones to the different refrigerant. Otherwise,
● ■
mineral oil will flow into the cycle and cause sludges, resulting
in clogging or compressor failure.
Use the weight scale when charging
*
× ×
○ ○
The current gas leakage detector (R22) is not applicable due
●
※■
*
to different detecting method.
96(8RT)
AVWT-96FHFSHA
■: only for Refrigerant R410A (not interchangeable with R22)
● : only for Refrigerant R407C (not interchangeable with R22)
Reason of Non-Interchangeability
and Attention (★: Strictly Required)
——
——
120(10RT)
AVWT-120FHFSHA
2
Application
Cutting Pipe
Removing Burrs
Flaring for Tubes
Dimensional
Tube after Flaring
Bending
Expanding Tubes
Connection of Flare Nut
Brazing for Tubes
Prevention from Oxidation
during Brazing Air-tight test
Applying Oil to the Flared
Surface
Refrigerant Charging
Vacuum Pumping
Vacuum Pumping, Vacuum
Holding, Refrigerant Charg-
ing and Check of Pressures
Refrigerant Charging
Measure refrigerant quantity
Refrigerant Charging Gas
Leakage Check
144(12RT)
AVWT-144FHFSHA AVWT-168FHFSHA
Control of
168(14RT)