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) AccuRaterT 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
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