MODEL NUMBER
CNX720
CNX840
CNXM00 CNXM10 CNXM20
CNXM40 CNXM60 CNX2M00 CNX2M40
NOMINAL CAPACITY , TONS
*
63
64
75
92
105
121
139
154
281
NUMBER OF REFRIGERATION CIRCUIT
Dual
Dual
Dual
Dual
Quadruple Quadruple Quadruple Quadruple Quadruple
COMPRESSOR
Type
Semi-hermetic reciprocating
Screw
Oil per system (liters)
4.94
4.94
5.2
5.2
4.94
4.94
5.2
5.2
22
Refrigerant
R-134a
Charge per system (oz)
**
1125
1145
1350
1660
945
1090
1250
1390
2520
CONDENSER FAN
Type
Propeller
Qty. – Diameter (mm)
6 – 700
6 – 700
6 – 800
6 – 800
6 – 800
8 – 800
8 – 800
10 – 800 16 – 800
Nominal CFM
45000
45000
73266
73266
69000
93256
87032
108790
192048
Motor kW – RPM
1.45–1000 1.45–1000 2.15–970 2.15–970 2.15–970
2.15–970 2.15–970
2.15–970 2.15–970
CONDENSER COIL
Type
Inner grooved tubes and enhanced fins
Tube Dia–Rows–Fins per inch 3/8–4–14 3/8–5–14 3/8–3–14 3/8–3–14 3/8–4–14 3/8–3–14 3/8–3–14 3/8–4–14 3/8–3–14
Total face area (Sq. ft.)
70
70
120
120
120
140
140
175
304
HIGH PRESSURE SWITCH Open (PSIG)
350 ± 10 350 ± 10 350 ± 10 350 ± 10 350 ± 10 350 ± 10 350 ± 10 350 ± 10 350 ± 10
Close (PSIG)
300 ± 10 300 ± 10 300 ± 10 300 ± 10 300 ± 10 300 ± 10 300 ± 10 300 ± 10 300 ± 10
LOW PRESSURE SWITCH
Open (PSIG)
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
Close (PSIG)
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
REFRIGERANT LINES
+
Suction line size Dual
2-1/8
2-1/8
2-5/8
2-5/8
N.A.
N.A.
N.A.
N.A.
N.A.
(OD), inch
Quadruple
N.A.
N.A.
N.A.
N.A.
2-1/8
2-1/8
2-5/8
2-5/8
3-1/8
Liquid line size Dual
1-1/8
1-1/8
1-3/8
1-3/8
N.A.
N.A.
N.A.
N.A.
N.A.
(OD), inch
Quadruple
N.A.
N.A.
N.A.
N.A.
1-1/8
1-1/8
1-1/8
1-1/8
1-3/8
SOUND PRESSURE LEVEL, dBA (@ 3/5/10 meter)
++
73.3/69.8/64.5 73.3/69.8/64.5
74.7/1.2/66 75.7/72.7/66.9 76.2/72.7/67.4 77.1/73.6/68.3 77.7/74.2/69
78.1/74.6/69.3 81.4/77.9/72.6
OPERATING WEIGHT, Kg.
2100
2600
3500
3700
4250
4700
5600
5095
8500
PHYSICAL DATA
NOTE:
*
Nominal cooling capacity @ 95
0
F outdoor and 45
0
F saturated suction temperatures.
**
Operating system charge is applicable when matched with air handling units & connected by 25 feet of refrigerant piping.
+
Pipe sizes are for runs up to 50 feet to indoor unit. For refrigerant lines longer than 50 feet, use next larger size.
++
Based on free field area at ARI conditions. Tolerance: ±2dBA.
4