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Table 4A — Physical Data — 38HDC Condensing Units
UNIT 38HDC
018
024
NOMINAL CAPACITY (Tons)
1
1
⁄
2
2
OPERATING WEIGHT (lb)
150
154
REFRIGERANT TYPE
R-22
Control (Cooling)
AccuRater
T
Piston at Fan Coil Unit
Factory Charge (lb)
3.6
4.8
COMPRESSOR TYPE
Tecumseh Reciprocating
Copeland Scroll
Model
AW5517G
ZR23K1
Oil (Recharge) (oz)
30
25
Crankcase Heater (Watts)
19
None
Accumulator
Yes
OUTDOOR FAN
Propeller, Direct Drive
Rpm
850
850
Diameter (in.)...No. of Blades
18...3
18...3
Pitch (Degrees)
25
27
Motor Hp
1
⁄
8
1
⁄
8
Nominal Air Cfm
1720
1720
OUTDOOR COIL
Copper Tube, Aluminum Fin
Face Area (sq ft)...No. of Rows
6.1...1.5
6.1...2
Fins/in.
15
15
CONTROLS
High-Pressure (psig)
Cut-in
320 ± 20
Cutout
426 ± 7
Low-Pressure (psig)
Cut-in
22 ± 5
Cutout
7 ± 3
Fusible Plug
210 F
Control Voltage*
24
REFRIGERANT LINES
Connection Type
Sweat
Liquid Line OD (in.)
3
⁄
8
3
⁄
8
Vapor Line OD (in.)
5
⁄
8
5
⁄
8
Maximum Length (ft)
200
200
Maximum Lift Fan Coil (Above Outdoor) (ft)
65
65
Maximum Lift Fan Coil (Below Outdoor) (ft)
150
150
*24 v and a minimum of 40 va is provided in the fan coil unit.
Table 4B — Physical Data — 38HDL Condensing Units
UNIT 38HDL
018
024
NOMINAL CAPACITY (Btuh)
18,000
24,000
UNIT OPERATING WEIGHT (lb)
130
136
COMPRESSOR
Hermetic
Type
Copeland Scroll
Copeland Scroll
Model
ZR18KC-PFV
ZR24KC-PFV
Oil (oz) Initial/Recharge
25/21
25/21
OUTDOOR FAN
Propeller Type, Direct Drive, Horizontal
Rpm
850
850
Diameter (in.)-No. of Blades
18-3
18-3
Fan Pitch (Deg)
25
27
Motor Hp
1
⁄
8
1
⁄
8
Nominal Airflow (cfm)
1720
1720
OUTDOOR COIL
Copper Tube, Aluminum Plate Fin
Face Area (sq ft)...No. of Rows
6.1...1
6.1...1.5
Fins per inch
20
20
CONTROL PRESSURESTAT
Settings
Low Pressure
Cut-out (psig)
7 ± 3
Cut-in. (psig)
22 ± 5
Fusible Plug
210 F
REFRIGERANT LINES
Connection Type
Sweat
Maximum Length (ft)
100
Maximum Lift (ft) — Fan Coil (Above Outdoor)
65
Maximum Lift (ft) — Fan Coil (Below Outdoor)
75
7