Publicidad
Idiomas disponibles
Idiomas disponibles
Installation Instructions
Step 3 - Installation of the Outdoor Unit (Cont.)
D. Wiring Check Test
Turn off power at the disconnect. Move all dip switches
in the SW1 bank to ON. When power is turned on, the
LED display will alternate the compressor frequency and
CH (check). The system will run through each unit (A,
B, and C), cycling each EEV while testing the wiring. A
successful test will be indicated by the corresponding
LED displaying a constant green (1=A, 2=B, 3=C). Mis-
wired units will generate an EC on the display, with the
corresponding LED flashing green.
LED
A
LED status
example for
ASH324JCDDA1
ON
model
Model
Connection priority is
largest indoor unit on lowest
terminal set (D), and install
remaining indoor units from
bottom to top.
When there are two indoors,
the prior service valves are
When there are three indoors,
the prior service valves are
When there are four indoors,
the prior service valves are
NOTE: Please execute as the above when connecting indoor unit for better oil return and more reliable system.
NOTE: No connection priority on ASH436NCDWA1
Model Number
Factory
Charge
Unit
ASH218JCDDA1
ASH324JCDDA1
ASH436JCDDA1
ASH220NCDWA
ASH324NCDWA
ASH436NCDWA1
16
B
C
D
OFF
ALL Flashing
ALL ON
Flashing
Flashing
ON
Only one LED flashing
ASH436JCDDA1
ASH324JCDDA1
D
C
D
C
B
C
D
C
B
A
Refrigerant Charge and Pipe Length Information
Total Pipe
Length of factory
charge
oz
ft
60
50
67
100
90
131
99
100
99
100
113
131
E
Message
No power to unit
Outdoor unit searching for indoor units at initial start-up. If flashing
continues, check wiring for proper type and connections
All units connected correctly
ON: unit connected correctly
Flashing
Flashing: IDU not communicating. Check wiring and connections
among B, C & E
Line Set Connections
ASH218JCDDA1
C
B
B
B
A
/
/
/
Additional
Branch
charge rule
Maximum
pipe length
oz/ft
ft
0.2
65
0.2
82
0.2
82
0.2
82
0.2
82
0.2
82
Note: This LED display layout only
applies to ASH436JCDDA1
ASH220NCDWA
A
B
A
/
/
System
Maximum
Minimum pipe length
pipe length
ft
98
6' per indoor and 20' per system
197
6' per indoor and 20' per system
230
6' per indoor and 20' per system
164
6' per indoor and 20' per system
197
6' per indoor and 20' per system
230
6' per indoor and 25' per system
ASH324NCDWA
C
B
C
B
A
/
ft
31-5000560 Rev. 3
Publicidad
