Table 1B — Physical Data — 50/60 Hz (SI)
UNIT 38
AK007
AK008
AK012
AKS008
AKS009
AKS012
OPERATING WEIGHT (kg)
Aluminum Coils (Standard)
154
168
179
231
256
256
Copper Coils (Optional)
175
199
214
262
287
287
RIGGING WEIGHT (kg)
Aluminum Coils (Standard)
176
191
202
254
279
279
Copper Coils (Optional)
198
221
237
285
309
309
REFRIGERANT*
R-22
COMPRESSOR
Bristol, Reciprocating
Copeland, Scroll
Copeland, Scroll
Reciprocating, Semi-Hermetic
Quantity...Type
1...H26A72Q
1...ZR94KC
1...ZR125KC
1...06DA818
1...06DA824
1...06DH824
(See Note 1)
Quantity Cylinders
2
—
—
4
6
Speed (r/s) — 60 Hz
58.4
58.4
58.4
29.2
29.2
— 50 Hz
48.4
48.4
48.4
24.2
24.2
Oil Charge (L)
1.92
2.51
3.25
2.60
3.78
CONDENSER FAN — 60 Hz
Propeller; Direct Drive
Quantity...R/s
1...14.2
1...18.3
Diameter (mm)
660
660
Motor Hp (NEMA)
1
⁄
3
3
⁄
4
Nominal Airflow (L/s)
1800
3050
3300
3050
3050
3050
CONDENSER FAN — 50 Hz
Propeller; Direct Drive
Quantity...R/s
1...16.0
Diameter (mm)
660
Motor Hp (NEMA)
1
⁄
3
Nominal Airflow (L/s)
1490
2550
2750
2550
2550
2550
CONDENSER COIL
Enhanced Copper Tubes, Aluminum Lanced Fins
Face Area (sq m)
1.14
1.46
1.90
1.67
1.67
1.67
Storage Capacity (kg)†
5.1
6.75
8.6
7.5
7.5
7.5
CONNECTIONS (sweat)
Suction (in.)
1
1
⁄
8
1
1
⁄
8
1
1
⁄
8
1
1
⁄
8
1
1
⁄
8
1
1
⁄
8
Liquid (in.)
1
⁄
2
1
⁄
2
5
⁄
8
1
⁄
2
5
⁄
8
5
⁄
8
CONTROLS
Pressurestat Settings (kPa)
High Cutout
2937
6
48
Cut-in
2206
6
138
Low Cutout
48
6
20
Cut-in
151
6
34
LEGEND
NEMA — National Electrical Manufacturing Association
*Unit is factory supplied with holding charge only.
†Storage capacity of condenser coil with coil 80% full of liquid R-22 at 51 C.
NOTES:
1. Unit 38AKS012 has one step of unloading. Full load is 100% capacity, and one step of unloading is
67% capacity. Unit 38AKS012 has the following unloader settings: load is 483
6
6.9 kPa and unload
is 414
6
13.8 kPa.
2. Equivalent mm values for connectors are as follows:
in.
mm
1
⁄
2
12.7
5
⁄
8
15.9
1
1
⁄
8
28.6
3
