ASKCI4H4R18

ASKCI4H4R18 is the 17-16 SEER 18,000 Btu outdoor unit of the Sky Split Series.

Sky Split Series condenser (18k)

Wiring Diagram

ASKCI4H4R18 Wiring Diagram

ASKCI4H4R18 Main Board Diagram

Number	Description
1	Live wire input
2	Neutral wire input
3	Control power output [1-DC bus voltage, 3-GND]
4	DC Fan Motor 2
5	DC Fan Motor 1
6	Control power output [1-GND 2-18V, 3-15V]
7	Communication line [1-3.3V, 2-TX, 3-RX, 4-GND]
8	Communication line [1-pin GND, 2-pin B and 3-pin A]
9	Communication line [1-pin+12V, 2-pin B, 3-pin A, 4-pin GND]
10	High pressure switch for fan speed adjustment
11	High pressure switch for system protection
12	Low pressure switch for system protection
13	Compressor overload protection
14	Temperature Sensor
15	Electronic expansion valve line
16	Compressor electrical heater
17	Chassis electrical heater
18	4-way valve

ASKCI4H4R18 Exploded View

Number	Part Name
1	Front Grill
2	Front Panel
3	Axial Flow Fan
4	Chassis Sub-Assy
5	Electrical Heater
6	Drainage Hole Cap
7	Drainage Connector
8	Compressor Overload Protector (External)
9	Compressor Gasket
10	Compressor and Fittings
11	Cut Off Valve
12	Cut Off Valve Sub-Assy
13	Cut Off Valve
14	Cut Off Valve Sub-Assy
15	Pressure Protect Switch
16	Valve Support Assy
17	Right Side Plate
18	Silencer
19	Handle Assy
20	Strainer
21	Strainer
22	Strainer
23	Electronic Expansion Valve
24	Electric Expand Valve Fitting
25	4-Way Valve
26	Magnet Coil
27	Inductance
28	Rear Grill
29	Clapboard Sub-Assy
30	Condenser Assy
31	Terminal Board
32	Terminal Board
33	Supporting Board (Condenser)
34	Coping
35	Electric Box Assy
36	Main Board
37	Main Board
38	Filter Board
39	Radiator
40	Left Handle
41	Left Side Plate
42	Motor Support Assy
43	Fan Motor
44	Temperature Sensor

Liquid Side	Gas Side
1/4"	1/2"