Haier 2U18MS2HDA Instrucciones De Instalación página 24

INSTALLATION INSTRUCTIONS
Step 3 - Installation of the Outdoor Unit (Cont.)
Model Number Factory
Charge
Unit oz
2U18MS2HDA 60
3U24MS2HDA 67
4U36MS2HDA 90
2U20EH2HDA 69
3U24EH2HDA 82
4U36EH2HDA 102
5U42MS2HDA 113
D. Install Copper Lineset
• Line set sizes are determined by the indoor unit. See indoor spec for information. The outdoor unit ships with port
adapters to reduce or enlarge the flare port sizes when needed. If connecting to 24K models with 3/8" & 5/8" ports,
adapters must be ordered separately.
• Cut the line set to length.
• Place nut over the pipe and then flare with the R-410A flaring tool.
NOTE: Follow standard practices for creating pipe flares. When cutting and reaming the tubing, use caution to prevent
dirt or debris from entering the tubing. Remember to place nut over the tubing before flaring.
• To join the line set, directly align the tubing flare to the fitting on the other pipe. Slide the nut onto the fitting and hand
tighten.
• Torque the fittings according to the specifications shown in the torque chart below.
• Two wrenches are required to join the flare connection; one standard wrench and one torque wrench
adjusted to the proper settings.
• Repeat the process for attaching the other end of the line set.
CAUTION
Indoor Unit
Outdoor Unit
itioned
24
Refrigerant Charge and Pipe Length Information
Total Pipe Additional
Length of charge rule
factory charge
ft oz/ft
50
100
131
66
0.2
100
131
164
Forced fastening without careful centering will
damage the threads and cause a refrigerant leak.
Pipe Diameter (ø)
1/4"
3/8"
1/2"
5/8"
Outdoor Unit
)
Indoor Unit
If the outdoor unit is
than one or more indoor units.
(If lower than one or more indoor units.)
Branch System
Maximum Maximum
pipe length pipe length
ft ft
65 98
82 197
82 230
82 165
82 197
82 230
82 262
Fastening torque
18N.m/13.3Ft.lbs
42N.m/30.1Ft.lbs
55N.m/40.6Ft.lbs
60 N.m/44.3Ft.lbs
If all indoor unit are
the outdoor units.
Minimum pipe length
ft
10' per indoor
Half union
Flare nut
Spanner Torque wrench
e el
di
31-5000564 Rev. 3