aircon Saturn Series User manual

Service Manual
2023.3

1
Part 1
General Information
1. Indoor and Outdoor Units...................................................................2
2. External Appearance...........................................................................2

2
1. Indoor and Outdoor Units
Series Capacity Outdoor units Indoor units
15 SEER
ON/OFF
18K
ATSCV4C4T18 ATSEM4H4T18
ATSFR4H4T18
ATSCV4H4T18
24K
ATSCV4C4T24 ATSEM4H4T24
ATSFR4H4T24
ATSCV4H4T24
30K
ATSCV4C4T30 ATSEM4H4T30
ATSFR4H4T30
ATSCV4H4T30
36K
ATSCV4C4T36 ATSEM4H4T36
ATSFR4H4T36
ATSCV4H4T36
42K
ATSCV4C4T42
ATSEM4H4T42
ATSCV4H4T42
48K
ATSCV4C4T48
ATSEM4H4T48
ATSCV4H4T48
60K
ATSCV4C4T60
ATSEM4H4T60
ATSCV4H4T60
2. External Appearance
Indoor Unit
Outdoor Unit

3
Part 2
Engineering Data
1. Specifications......................................................................................4
2. Dimensions........................................................................................11
3. Installation Space Requirements ..................................................... 14
4. Piping Diagrams ................................................................................16
5. Wiring Diagrams................................................................................17
6. Capacity Tables ................................................................................. 21
7. Accessories .......................................................................................25

4
1. Specifications
1.1 Outdoor Units
Model ATSCV4C4T18 ATSCV4C4T24 ATSCV4C4T30
Outdoor power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 17500 23400 28000
Input W 1550 2000 2350
EER2 Btu/(h·W) 11.7 11.7 11.7
SEER2 (AHRI Certified) Btu/(h·W) 14.3 14.3 14.3
Heating Capacity Btu/h －－－
HSPF2 (AHRI Certified) Btu/(h·W) －－－
Max. input consumption W 2250 3050 3300
Max. current A 11.5 15.0 17.0
Compressor
Brand LG LG LG
Model APG016KAC APG020KAC APG024KAC
Type Scroll Scroll Scroll
Capacity Btu/h 19300 24800 29500
Input W 1290 1570 1870
Rated current (RLA) A 5.6 6.9 8.2
Locked rotor Amp (LRA) A 48 52 63
Thermal protector μF 35 35 40
Refrigerant oil ml 740 740 740
Outdoor fan motor
Brand GREEN-INTELLIGENCE GREEN-INTELLIGENCE GREEN-INTELLIGENCE
Type AC AC AC
Input W 162 162 226
Output W 85 85 160
Capacitor μF 6 6 6
Speed rpm 950 950 1050
Outdoor coil
Number of row 2 2 2
Fin spacing in 1/18 1/18 1/18
Fin material Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin
Tube outside diameter mm Ф 7 Ф 7 Ф 7
Tube type Inner Grooved Inner Grooved Inner Grooved
Coil length x height x width in 61.7×23.15×1.05 61.7×23.15×1.05 61.7×23.15×1.05
Number of circuit 6 6 6
Outdoor air flow CFM 2000 2000 2250
Outdoor sound pressure level dB(A) 60 60 63
Outdoor
dimension
Unit (W*H*D) in 23-3/5×25×23-3/5 23-3/5×25×23-3/5 23-3/5×25×23-3/5
mm 600×635×600 600×635×600 600×635×600
Packing (W*H*D) in 24-4/5×26-1/5×24-4/5 24-4/5×26-1/5×24-4/5 24-4/5×26-1/5×24-4/5
mm 630×665×630 630×665×630 630×665×630
Net / Gross weight kg 54.5/57 55.5/58 63/65.5
lbs 120/126 122/128 137/144
Refrigerant Type R410A R410A R410A
Charging volume oz 93.5 102.3 102.3
Refrigerant pipe
Liquid side in Ф3/8 Ф3/8 Ф3/8
Gas side in Ф3/4 Ф3/4 Ф3/4
Max. refrigerant pipe length ft 148 148 148
Max. difference in level ft 66 66 66
Design pressure MPa 2.7/1.0 2.7/1.0 2.8/1.0
Max. pressure MPa 4.5 4.5 4.5
Operation temp
range
Cooling ℉64-118 64-118 64-118
Heating ℉/ / /

5
Model ATSCV4C4T36 ATSCV4C4T42 ATSCV4C4T48 ATSCV4C4T60
Outdoor power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 33000 40000 45000 55500
Input W 2750 3440 3800 4920
EER2 Btu/(h·W) 11.7 11.7 11.2 11.2
SEER2 (AHRI Certified) Btu/(h·W) 14.3 14.3 13.8 13.8
Heating Capacity Btu/h －－－－
HSPF2 (AHRI Certified) Btu/(h·W) －－－－
Max. input consumption W 4455 5430 6000 7300
Max. current A 23.0 28.0 29.5 37.0
Compressor
Brand LG LG LG LG
Model APG029KAC ABG036KAC ABG039KAC ABG051KAC
Type
Scroll Scroll Scroll Scroll
Capacity Btu/h 35800 44700 48200 63000
Input W 2200 2790 3000 3830
Rated current (RLA) A 9.8 12.3 13.7 17.4
Locked rotor Amp
(LRA)
A 79.0 112.3 94.0 127.9
Thermal protector μF 45 45 70 70
Refrigerant oil ml 740 1280 1280 1280
Outdoor fan
motor
Brand GREEN-INTELLIGENCE GREEN-INTELLIGENCE GREEN-INTELLIGENCE GREEN-INTELLIGENCE
Type AC AC AC AC
Input W 197 210 370 370
Output W 110 110 230 230
Capacitor μF 6 6 12 12
Speed rpm 850 850 1050 1050
Outdoor coil
Number of row 2 2 2 2
Fin spacing in 1/18 1/18 1/18 1/18
Fin material
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Tube outside
diameter
mm Ф 7 Ф 7 Ф 7 Ф 7
Tube type Inner Grooved Inner Grooved Inner Grooved Inner Grooved
Coil length x height x
width
in 83.8×23.15×1.05 83.8×31.48×1.05 83.8×31.48×1.05 83.8×31.48×1.05
Number of circuit 6 10 10 10
Outdoor air flow CFM 2750 3300 4000 4000
Outdoor sound pressure level dB(A) 63 65 65 63
Outdoor
dimension
Unit (W*H*D) in 29-1/7×25×29-1/7 29-1/7×32-7/8×29-1/7 29-1/7×32-7/8×29-1/7 29-1/7×32-7/8×29-1/7
mm 740×635×740 740×835×740 740×835×740 740×835×740
Packing (W*H*D) in
30-3/10×26-1/5×x30-
3/10
30-3/10×34-4/5×30-
3/10
30-3/10×34-4/5×30-
3/10
30-3/10×34-4/5×30-
3/10
mm 770×665×770 770×885×770 770×885×770 770×885×770
Net / Gross weight kg 72.5/75.5 90/95 92/97 93/98
lbs 160/166 198/209 203/214 205/216
Refrigerant Type R410A R410A R410A R410A
Charging volume oz 116.4 151.7 158.7 162.3
Refrigerant pipe
Liquid side in Ф3/8 Ф3/8 Ф3/8 Ф3/8
Gas side in Ф3/4 Ф3/4 Ф7/8 Ф7/8
Max. refrigerant pipe
length
ft 148 148 148 148
Max. difference in
level
ft 66 66 66 66
Design pressure MPa 2.7/1.0 2.7/1.0 2.8/1.0 2.8/1.0
Max. pressure MPa 4.5 4.5 4.5 4.5
Operation temp
range
Cooling ℉64-118 64-118 64-118 64-118
Heating ℉/ / / /

6
Model ATSCV4H4T18 ATSCV4H4T24 ATSCV4H4T30
Outdoor power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 17500 22000 28000
Input W 1550 2000 2370
EER2 Btu/(h·W) 11.5 11.2 11.5
SEER2 (AHRI Certified) Btu/(h·W) 14.3 14.3 14.3
Heating Capacity Btu/h 17500 22000 26000
HSPF2(AHRI Certified) Btu/(h·W) 7.5 7.5 7.5
Max. input consumption W 2250 3050 3300
Max. current A 11.5 15.0 17.0
Compressor
Brand LG LG LG
Model APG016KAC APG020KAC APG024KAC
Type Scroll Scroll Scroll
Capacity Btu/h 19300 24800 29500
Input W 1290 1570 1870
Rated current (RLA) A 5.6 6.9 8.2
Locked rotor Amp (LRA) A 48 52 63
Thermal protector μF 35 35 40
Refrigerant oil ml 740 740 740
Outdoor fan motor
Brand GREEN-INTELLIGENCE GREEN-INTELLIGENCE GREEN-INTELLIGENCE
Model AC AC AC
Input W 162 162 226
Output W 85 85 160
Capacitor μF 6 6 6
Speed rpm 950 950 1050
Outdoor coil
Number of row 2 2 2
Fin spacing in 1/18 1/18 1/18
Fin material Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin
Tube outside diameter mm Ф7 Ф7 Ф7
Tube type Inner Grooved Inner Grooved Inner Grooved
Coil length x height x width in 61.7×23.15×1.05 61.7×23.15×1.05 61.7×23.15×1.05
Number of circuit 6 6 6
Outdoor air flow CFM 2000 2000 2250
Outdoor sound pressure level dB(A) 60 60 63
Outdoor
dimension
Unit (W*H*D) in 23-3/5×25×23-3/5 23-3/5×25×23-3/5 23-3/5×25×23-3/5
mm 600×635×600 600×635×600 600×635×600
Packing (W*H*D) in 24-4/5×26-1/5×24-4/5 24-4/5×26-1/5×24-4/5 24-4/5×26-1/5×24-4/5
mm 630×665×630 630×665×630 630×665×630
Net / Gross weight kg 57.5/60 58.5/61 66/68.5
lbs 127/132 129/134 146/151
Refrigerant Type R410A R410A R410A
Charging volume oz 93.5 98.8 105.8
Refrigerant pipe
Liquid side in Ф3/8 Ф3/8 Ф3/8
Gas side in Ф3/4 Ф3/4 Ф3/4
Max. refrigerant pipe length ft 148 148 148
Max. difference in level ft 66 66 66
Design pressure MPa 2.7/1.0 2.7/1.0 2.8/1.0
Max. pressure MPa 4.5 4.5 4.5
Operation temp
range
Cooling ℉64-118 64-118 64-118
Heating ℉17-80 17-80 17-80

7
Model ATSCV4H4T36 ATSCV4H4T42 ATSCV4H4T48 ATSCV4H4T60
Outdoor power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 33000 40000 45000 56000
Input W 2780 3400 3770 4870
EER2 Btu/(h·W) 11.5 11.5 11.5 11.5
SEER2 (AHRI
Certified)
Btu/(h·W) 14.3 14.3 14.3 14.3
Heating
Capacity Btu/h 33000 40000 44000 53000
HSPF2(AHRI
Certified)
Btu/(h·W) 7.5 7.5 7.5 7.5
Max. input consumption W 4455 5430 6000 7300
Max. current A 23.0 28.0 29.5 37.0
Compressor
Brand LG LG LG LG
Model APG029KAC ABG036KAC ABG039KAC ABG051KAC
Type Scroll Scroll Scroll Scroll
Capacity Btu/h 35800 44700 48200 63000
Input W 2200 2790 3000 3830
Rated current (RLA) A 9.8 12.3 13.7 17.4
Locked rotor Amp
(LRA)
A 79.0 112.3 94.0 127.9
Thermal protector μF 45 45 70 70
Refrigerant oil ml 740 1280 1280 1280
Outdoor fan
motor
Brand GREEN-INTELLIGENCE GREEN-INTELLIGENCE GREEN-INTELLIGENCE
Panassonic/ Broad-
Ocean
Model AC AC AC DC
Input W 197 210 370 270
Output W 110 110 230 200
Capacitor μF 6 6 12 /
Speed rpm 850 850 1050 1050
Outdoor coil
Number of row 2 2 2 2.5
Fin spacing in 1/18 1/18 1/18 1/18
Fin material
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Tube outside
diameter
mm Ф7 Ф7 Ф7 Ф7
Tube type Inner Grooved Inner Grooved Inner Grooved Inner Grooved
Coil length x height x
width
in 83.8×23.15×1.05 83.8×31.48×1.05 83.8×31.48×1.05 83.8×31.48×1.58
Number of circuit 6 10 10 8
Outdoor air flow CFM 2750 3300 4000 4000
Outdoor sound pressure level dB(A) 63 65 65 63
Outdoor
dimension
Unit (W*H*D) in 29-1/7×25×29-1/7 29-1/7×32-7/8×29-1/7 29-1/7×32-7/8×29-1/7 29-1/7×32-7/8×29-1/7
mm 740×635×740 740×835×740 740×835×740 740×835×740
Packing (W*H*D) in
30-3/10×26-1/5×x30-
3/10
30-3/10×34-4/5×30-
3/10
30-3/10×34-4/5×30-
3/10
30-3/10×34-4/5×30-
3/10
mm 770×665×770 770×885×770 770×885×770 770×885×770
Net / Gross weight kg 75.5/78.5 94/99 97/102 104/109
lbs 166/173 207/218 214/225 229/240
Refrigerant Type R410A R410A R410A R410A
Charging volume oz 123.5 151.7 162.3 197.5
Refrigerant pipe
Liquid side in Ф3/8 Ф3/8 Ф3/8 Ф3/8
Gas side in Ф3/4 Ф3/4 Ф7/8 Ф7/8
Max. refrigerant
pipe length
ft 148 148 148 148
Max. difference in
level
ft 66 66 66 66
Design pressure MPa 2.7/1.0 2.7/1.0 2.8/1.0 2.8/1.0
Max. pressure MPa 4.5 4.5 4.5 4.5
Operation temp
range
Cooling ℉64-118 64-118 64-118 64-118
Heating ℉17-80 17-80 17-80 17-80

8
1.2 Indoor Units
Model ATSEM4H4T18 ATSEM4H4T24 ATSEM4H4T30
Power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 17500 22000 28000
SEER2 Btu/(h·W) 14.3 14.3 14.3
Indoor external static pressure Pa 125 125 125
Throttle type Orifice Orifice Orifice
Indoor coil
Number of row 3(row)×2(piece) 4(row)×2(piece) 4(row)×2(piece)
Tube pitch(a) x row pitch(b) in 0.83×0.53 0.83×0.53 0.83×0.53
Fin spacing in 1/17 1/17 1/17
Fin material Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin Hydrophilic Aluminium Fin
Tube outside diameter mm Ф7 Ф7 Ф7
Tube type Inner Grooved Inner Grooved Inner Grooved
Coil length x height x width in 17.36×14.88×1.58 17.36×16.54×2.11 17.36×16.54×2.11
Number of circuit 6 8 8
Indoor fan
motor
Brand Kangbao Kangbao Genteq/Wolong/Broad-Ocean
Type AC AC ECM
Input W 265 398 267
Output W 180 220 373
Capacitor μF 6 10 /
Speed rpm 830 910 960
Blower
Diameter in 11 11 11
Width in 11 11 11
Indoor air flow CFM 580 800 980
Indoor sound pressure level dB(A) / / /
Indoor
dimension
Unit (W*H*D)
in 19-2/3×45-3/4×22 19-2/3×45-3/4×22 19-2/3×45-3/4×22
mm 500×1162×560 500×1162×560 500×1162×560
Packing (W*H*D)
in 22-5/6×47-5/8×25-3/5 22-5/6×47-5/8×25-3/5 22-5/6×47-5/8×25-3/5
mm 580×1210×650 580×1210×650 580×1210×650
Net / Gross weight
kg 57/62 60/65 59/64
lbs 126/137 132/143 130/141
Refrigerant
pipe
Liquid side in 3/8 3/8 3/8
Gas side in 3/4 3/4 3/4

9
Model ATSEM4H4T36 ATSEM4H4T42 ATSEM4H4T48 ATSEM4H4T60
Power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 33000 40000 45000 55500
SEER2 Btu/(h·W) 14.3 14.3 13.8/14.3 13.8/14.3
Indoor external static pressure Pa 125 125 125 125
Throttle type Orifice Orifice Orifice Orifice
Indoor coil
Number of row 4(row)×2(piece) 4(row)×2(piece) 4(row)×2(piece) 5(row)×2(piece)
Tube pitch(a) x row
pitch(b)
in 0.83×0.53 0.83×0.53 0.83×0.53 0.83×0.53
Fin spacing in 1/17 1/17 1/17 1/17
Fin material
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Tube outside
diameter
mm Ф7 Ф7 Ф7 Ф7
Tube type Inner Grooved Inner Grooved Inner Grooved Inner Grooved
Coil length x height x
width
in 17.36×16.54×2.11 17.36×16.54×2.11 19.84×21.5×2.11 19.84×21.5×2.63
Number of circuit 8 8 12 12
Indoor fan
motor
Brand
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Type ECM ECM ECM ECM
Input W 317 317 365 473
Output W 373 560 560 560
Capacitor μF / / / /
Speed rpm 1000 1040 1010 1010
Blower
Diameter in 11 11 11 11
Width in 11 11 11 11
Indoor air flow CFM 1150 1280 1580 1570
Indoor sound pressure level dB(A) / / / /
Indoor
dimension
Unit (W*H*D)
in 19-2/3×45-3/4×22 19-2/3×45-3/4×22 22×53-1/8×24 22×53-1/8×24
mm 500×1162×560 500×1162×560 560×1350×623 560×1350×623
Packing (W*H*D)
in 22-5/6×47-5/8×25-3/5 22-5/6×47-5/8×25-3/5 27-3/4×54-9/10×25-1/5 27-3/4×54-9/10×25-1/5
mm 580×1210×650 580×1210×650 705×1395×640 705×1395×640
Net / Gross weight
kg 59/64 61/66 78/84 78/84
lbs 130/141 134/146 172/185 172/185
Refrigerant
pipe
Liquid side in 3/8 3/8 3/8 3/8
Gas side in 3/4 3/4 7/8 7/8

10
Model ATSFR4H4T18 ATSFR4H4T24 ATSFR4H4T30 ATSFR4H4T36
Power supply V/Ph/Hz 208/230/1/60
Cooling
Capacity Btu/h 17500 22000 28000 33000
SEER2 Btu/(h·W) 14.3 14.3 14.3 14.3
Indoor external static pressure Pa 145 145 145 145
Throttle type Orifice Orifice Orifice Orifice
Indoor coil
Number of row 5 5 5 5
Tube pitch(a) x row
pitch(b)
in 0.83×0.53 0.83×0.53 0.83×0.53 0.83×0.53
Fin spacing in 1/17 1/17 1/17 1/17
Fin material
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Hydrophilic Aluminium
Fin
Tube outside
diameter
mm Ф7 Ф7 Ф7 Ф7
Tube type Inner Grooved Inner Grooved Inner Grooved Inner Grooved
Coil length x height
x width
in 16.97×18.2×2.63 16.97×18.2×2.63 17.44×23.15×2.63 17.44×23.15×2.63
Number of circuit 6 6 8 8
Indoor fan
motor
Brand
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Genteq/Wolong/Broad-
Ocean
Type ECM ECM ECM ECM
Input W 166 221 267 317
Output W 249 249 373 373
Capacitor μF / / / /
Speed (Hi/Me/Lo) rpm 960 1010 960 1000
Blower
Diameter in 11 11 11 11
Width in 10 10 6 6
Indoor air flow CFM 715 805 1020 1145
Indoor sound pressure level dB(A) / / / /
Indoor
dimension
Unit (W*H*D)
in 20-3/5×36×15 20-3/5×36×15 22-1/10×39-3/5×19 22-1/10×39-3/5×19
mm 522×915×381 522×915×381 559×1006×485 559×1006×485
Packing (W*H*D)
in 23-1/5×39-2/5×17-7/10 23-1/5×39-2/5×17-7/10 24-3/5×42-9/10×21-3/5 24-3/5×42-9/10×21-3/5
mm 590×1000×450 590×1000×450 625×1090×550 625×1090×550
Net / Gross weight
kg 40/44 40/44 51/56 51/56
lbs 88/97 88/97 112/123 112/123
Refrigerant
pipe
Liquid side in 3/8 3/8 3/8 3/8
Gas side in 3/4 3/4 3/4 3/4

11
2. Dimensions
2.1 Outdoor Units
Model name
Dimensions
“W” mm (in.) “D” mm (in.) “H” mm (in.)
ATSCV4C4T18
ATSCV4H4T18
600 (23-5/8) 600 (23-5/8) 635 (25)
ATSCV4C4T24
ATSCV4H4T24
ATSCV4C4T30
ATSCV4H4T30
ATSCV4C4T36
ATSCV4H4T36 740 (29-1/8) 740 (29-1/8) 635 (25)
ATSCV4C4T42
ATSCV4H4T42
740 (29-1/8) 740 (29-1/8) 835 (32-7/8)
ATSCV4C4T48
ATSCV4H4T48
ATSCV4C4T60
ATSCV4H4T60
W
D
H

12
2.2 Indoor Units
Supply Air
High voltage
connection
Low voltage
connection
Flanges provided
for field installation
Gas pipe connection (Sweat)
Liquid pipe connection (Sweat)
Auxiliary drain connection 3/4”
Female pipe thread (NPT)
Primary drain connection 3/4”
Female pipe thread (NPT)
Upflow unit shown;
Unit may be installed upflow, downflow,
horizontal right, or left air supply.
Model name
Dimensions
“W” mm (in.) “D” mm (in.) “H” mm (in.) Supply duct “A” mm (in.)
ATSEM4H4T18
500 (19-2/3) 560 (22) 1162 (45-3/4) 454 (17-7/8)
ATSEM4H4T24
ATSEM4H4T30
ATSEM4H4T36
ATSEM4H4T42
ATSEM4H4T48
560 (22) 623 (24-1/2) 1350 (53-1/8) 496 (19-1/2)
ATSEM4H4T60
A
H
D
W
10-1/2

13
Supply Air
High voltage connection
1-2/25"(7/8") dia knock outs
Low voltage connection
High voltage connection
7/8"(1-3/8") dia knock outs
Primary drain connection 3/4”
Female pipe thread (NPT)
Auxiliary drain connection 3/4”
Female pipe thread (NPT)
All units are configured for vertical upflow.
Units cannot be installed in any other configuration.
Front return shown. Units may also be installed as bottom return. See the applications section for more details.
Model name
Dimensions
“W” mm (in.) “W1” mm (in.) “D” mm (in.) “D1” mm (in.) “H” mm (in.)
ATSFR4H4T18
522 (20-1/2) 442 (17-2/5) 381 (15) 244 (9-3/5) 915 (36)
ATSFR4H4T24
ATSFR4H4T30
559 (22) 477 (18-4/5) 485 (19) 251 (10) 1006 (39-3/5)
ATSFR4H4T36
Model name
Dimensions
“A” mm (in.) “B” mm (in.) “C” mm (in.)
ATSFR4H4T18
136 (5-3/8) 61 (2-2/5) 718 (28-1/4)
ATSFR4H4T24
ATSFR4H4T30
151 (6) 61 (2-2/5) 794 (31-1/4)
ATSFR4H4T36
W1
H
D
High voltage connection
7/8"(1-3/8") dia knock outs
D1
Liquid line connection
copper (Sweat) (3/8"dia pipe)
Vapor line connection
copper (Sweat) (3/4"dia pipe)

14
3. Installation Space Requirements
3.1 Outdoor Units
3.2 Indoor Units
Regular Air Handler:
Horizontal position:
Vertical position:

15
Front Return Air Handler:

16
4. Piping Diagrams
Cooling only models:
Heat pump models:

17
5. Wiring Diagrams
5.1 Outdoor Units
Cooling only models 18K-60K:
Heat pump models 18K-48K:

18
Heat pump models 60K:

19
5.2 Indoor Units
Regular Air Handler:
18K, 24K:
30K, 36K, 42K, 48K, 60K: