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UNIT SIZE 48EZ --- A
NOMINAL CAPACITY --- ton
OPERATING WEIGHT--- lb
COMPRESSORS
Quantity
REFRIGERANT (R --- 410A)
Quantity --- lb
(kg )
REFRIGERANT METERING DEVICE
OUTDOOR ORIFICE --- in. (qty)
(mm)
OUTDOOR COIL
Rows...Fins --- in.
Face Area--- sq ft
OUTDOOR FAN
Nominal Cfm
Diameter--- in.
(mm)
Motor Hp --- Rpm
INDOOR COIL
Rows...Fins --- in.
Face Area--- sq ft
INDOOR BLOWER
Nominal Cooling Airflow--- (CFM)
Size --- in.
(mm)
Motor --- hp
FURNACE SECTION*
Burner Orifice
Natural Gas Qty...Drill Size (Factory Installed)
Propane GasQty...Drill Size
HIGH --- PRESSURE SWITCH (psig) Cut--- out
Reset (Auto)
LOSS--- OF--- CHARGE /
LOW --- PRESSURE SWITCH
(Liquid Line) (psig)
Cut--- out
Reset (auto)
RETURN--- AIR FILTERS †
Throwaway (in.)
(mm)
*Based on altitude of 0 to 2000 ft (0 ---610 m).
{Required filter sizes shown are based on the larger of the AHRI (Air Conditioning, Heating and Refrigeration Institute) rated cooling airflow or the heating airflow
velocity of 300 ft/minute for high ---capacity type. Air filter pressure drop for non ---standard filters must not exceed 0.08 IN. W.C.
} If using accessory filter rack refer to filter rack installation instructions for correct filter size and quantity.
NOMINAL
INTERNAL
IRON
DIAMETER
10
PIPE,
(IN.)
(3.1)
SIZE (IN.)
1/2
.622
175
3/4
.824
360
1
1.049
680
1--- 1/4
1.380
1400
1--- 1/2
1.610
2100
* Capacity of pipe in cu ft of gas per hr for gas pressure of 0.5 psig or less. Pressure drop of 0.5 ---IN. W.C. (based on a 0.60 specific gravity gas). Refer to Table 2
and National Fire Protection Association NFPA 54/ANSI Z223.1.
† This length includes an ordinary number of fittings.
HEATING INPUT
NUMBER OF
NUMBER OF
(BTUH)
ORIFICES
ORIFICES
40,000
2
60,000
2
90,000
3
115,000
3
130,000
3
*When a unit is converted to propane, different size orifices must be used. See separate, natural ---to ---propane conversion kit instructions.
Based on altitudes from sea level to 2000 ft (610 m) above sea level. In U.S.A. for altitudes above 2000 ft (610 m), reduce input rating 4 percent for each addi-
{
tional 1000 ft (305 m) above sea level. In Canada, from 2000 ft (610 m) above sea level to 4500 ft (1372 m) above sea level, derate the unit 10 percent.
Table 1 - - Physical Data - - Unit 48EZ- -A (Cont'd)
48090
4
482
(kg)
219
2...21
13.6
3100
26
660
1/5 (810)
3...17
4.7
1600
11x10
279x254
1.0
3...38
3...53
Table 2 – Maximum Gas Flow Capacity*
20
30
40
50
(6.1)
(9.1)
(12.2)
(15.2)
120
97
82
73
250
200
170
151
465
375
320
285
950
770
600
580
1460
1180
990
900
Table 3 – Heating Inputs
GAS SUPPLY PRESSURE (IN. W.C.)
Natural{
Min
Max
4.0
13.0
4.0
13.0
4.0
13.0
4.0
13.0
4.0
13.0
48115
48130
4
4
482
482
219
219
Scroll
1
9.6
4.4
TXV
0.046 (2)
1.2
2...21
2...21
13.6
13.6
3100
3100
26
26
660
660
1/5 (810)
1/5 (810)
3...17
3...17
4.7
4.7
1600
1600
11x10
11x10
279x254
279x254
1.0
1.0
3...33
3...31
3...51
3...49
650 +/ ---15
420 +/ ---25
20 +/ ---5
45 +/ ---10
24x36x1
(610x914x25)
LENGTH OF PIPE, FT† (m)
60
70
80
90
(18.3)
(21.3)
(24.4)
(27.4)
66
61
57
53
138
125
118
110
260
240
220
205
530
490
460
430
810
750
690
650
Propane*{
Min
Max
11.0
13.0
11.0
13.0
11.0
13.0
11.0
13.0
11.0
13.0
11
60090
60115
5
5
507
507
230
230
12.3
5.6
0.052 (2)
1.3
2...21
2...21
17.5
17.5
3500
3500
26
26
660
660
1/5 (810)
1/5 (810)
3...17
3...17
5.7
5.7
1850
1850
11x10
11x10
279x254
279x254
1.0
1.0
3...38
3...33
3...53
3...51
100
125
150
175
(30.5)
(38.1)
(46.0)
(53.3)
50
44
40
—
103
93
84
77
195
175
160
145
400
360
325
300
620
550
500
460
MANIFOLD PRESSURE
MANIFOLD PRESSURE
(IN. W.C.)
Natural{
Propane*†
3.2∼3.8
10.0∼11.0
3.2∼3.8
10.0∼11.0
3.2∼3.8
10.0∼11.0
3.2∼3.8
10.0∼11.0
3.2∼3.8
10.0∼11.0
60130
5
507
230
2...21
17.5
3500
26
660
1/5 (810)
3...17
5.7
1850
11x10
279x254
1.0
3...31
3...49
200
(61.0)
—
72
135
280
430
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