2
Table 1A — Physical Data — English
*Approximate charge with 25 ft of interconnecting piping. Use
appropriate charging charts for actual charging of unit.
†Refrigerant storage capacity at 120 F condensing temperature
with condenser 80% full of liquid.
**Head pressure control on cooling cycle only.
Table 1B — Physical Data — SI
*Approximate charge with 7.6 m of interconnecting piping. Use
appropriate charging charts for actual charging of unit.
†Refrigerant storage capacity at 48.9 C condensing temperature
with condenser 80% full of liquid.
**Head pressure control on cooling cycle only.
UNIT 38AQS
012
016
OPERATING WEIGHT (lb)
750
803
REFRIGERANT
Operating Charge (lb)*
R-22
30
R-22
37
COMPRESSOR
Recip Hermetic;
1460 Rpm (50 Hz)
1750 Rpm (60 Hz)
Model No.
Cylinders
Oil (pts)
Crankcase Heater (Watts)
06DF824
6
10
180
06DF537
6
10
180
OUTDOOR AIR FANS
Direct Drive — Axial Flow
Number
Speed (rpm)
50 Hz
60 Hz
Diameter (in.)
Motor Hp
Airflow (cfm)
50 Hz
60 Hz
kW (total)
50 Hz
60 Hz
2
900
1075
26
1
/
2
9210
11,000
1.05
1.46
2
900
1075
26
1
/
2
9210
11,000
1.05
1.46
OUTDOOR COIL
Plate Fins; 15 Per Inch
Rows Deep
Face Area (sq ft)
Storage Capacity (lb)†
2
29.2
27.2
3
29.2
40.1
CONTROLS
High-Pressure Switch (HPS)
Cutout (psig)
Cut-in (psig)
Loss-of-Charge Switch
(Liquid Line)
Cutout (psig)
Cut-in (psig)
Head Pressure
(No. 2 Fan Cycling)**
Opens (psig)
Closes (psig)
Oil Pressure Switch (Differential)
Set Point (psig)
(Close on Rise)
(Open on Fall)
Defrost Pressure Switch (HPS2)
Opens (psig)
Closes (psig)
400
300
7 ± 3
22 ± 5
160 ± 10
255 ± 10
9.5 ± 1
5
280 ± 10
180 ± 2
THERMOSTAT
Defrost Switch
Opens (F)
Closes (F)
65
27
80
27
UNIT 38AQS
012
016
OPERATING WEIGHT (kg)
340
364
REFRIGERANT
Operating Charge (kg)*
R-22
13.6
R-22
16.8
COMPRESSOR
Recip Hermetic;
24.3 r/s (50 Hz)
29.2 r/s (60 Hz)
Model No.
Cylinders
Oil (L)
Crankcase Heater (Watts)
06DF824
6
4.73
180
06DF537
6
4.73
180
OUTDOOR AIR FANS
Direct Drive — Axial Flow
Number
Speed (r/s)
50 Hz
60 Hz
Diameter (mm)
Motor kW
Airflow (L/s)
50 Hz
60 Hz
kW (total)
50 Hz
60 Hz
2
15
17.9
660
0.37
4350
5192
1.05
1.46
2
15
17.9
660
0.37
4350
5192
1.05
1.46
OUTDOOR COIL
Plate Fins; 590 Per Meter
Rows Deep
Face Area (sq m)
Storage Capacity (kg)†
2
2.71
12.3
3
2.71
18.2
CONTROLS
High-Pressure Switch (HPS)
Cutout (kPag)
Cut-in (kPag)
Loss-of-Charge Switch
(Liquid Line)
Cutout (kPag)
Cut-in (kPag)
Head Pressure
(No. 2 Fan Cycling)**
Opens (kPag)
Closes (kPag)
Oil Pressure Switch (Differential)
Set Point (kPag)
(Close on Rise)
(Open on Fall)
Defrost Pressure Switch (HPS2)
Opens (kPag)
Closes (kPag)
2758
2069
48 ± 20
152 ± 34
1103 ± 69
1758 ± 69
66 ± 7
34
1931 ± 69
1241 ± 14
THERMOSTAT
Defrost Switch
Opens (C)
Closes (C)
18.3
–2.8
26.7
–2.8
