—5—

PHYSICAL DATA

†

Required filter sizes shown are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling air-

flow or the heating airflow velocity of 300 ft/min for throwaway type or 450 ft/min for high-capacity type. Air filter pressure

drop for non-standard filters must not exceed 0.08 in. wg.

*

Based on altitude of 0 to 2000 ft.

UNIT SIZE 574B 024040 030040 030060 036060 036090 042060 042090
NOMINAL CAPACITY (ton)

2 2-1/2 2-1/2 3 3 3-1/2 3-1/2

OPERATING WEIGHT (lb)

350 388 388

COMPRESSORS

Scroll

Quantity

1

REFRIGERANT (R-410A)
Quantity (lb)

7.3 9.5 9.5

REFRIGERANT METERING DEVICE
Indoor

TXV

CONDENSER COIL
Rows—Fins/in.
Face Area (sq ft)

2/21
11.95
2/21
13.7
2/21
13.7

CONDENSER FAN
Nominal Cfm
Diameter (in.)
Motor Hp (Rpm)

2350
22
1/8 (825)
2350
22
1/8 (825)
2350
22
1/8 (825)

EVAPORATOR COIL
Rows—fins/in.
Face Area (sq ft)

3/15
3.7
4/15
3.7
4/15
3.7

EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in.)
Motor Hp (Rpm)

800
10 x 10
1/2
1150
11 x 10
3/4
1150
11 x 10
3/4

FURNACE SECTION*
Burner Orifice No. (Qty…Drill Size)
Natural
Burner Orifice No. (Qty…Drill Size)
Propane

2…44
2…50
2…38
2…46
3…38
3…46

HIGH-PRESSURE SWITCH (psig)
Cutout
Reset (Auto.)

610 ± 15
420 ± 25

LOSS-OF-CHARGE/LOW-PRESSURE SWITCH
(Liquid Line) (psig)
Cutout
Reset (Auto.)

20 ± 5
45 ± 10

RETURN-AIR FILTERS (in.)†
Throwaway

20 x 24 x 1 20 x 24 x 1 20 x 24 x 1 20 x 24 x 1 20 x 24 x 1 24 x 30 x 1 24 x 30 x 1