Nortek C74BA Series User Manual

8
UPFLOW & DOWNFLOW UNITS
A-CABINETS B-CABINETS C-CABINETS D-CABINETS
C74BAM
018U-A 02430U-A 018U-B 02430U-B 03642U-B 02430U-C 03642U-C 048U-C 042U-D
048U-D
NOMINAL CAPACITY, MIN BTUH
18,000
24,000
18,000
24,000 36,000 24,000 36,000
48,000 42,000
48,000
NOMINAL CAPACITY, MAX BTUH 30,000 30,000 42,000 30,000 42,000
INSTALLED ORIFICE SIZE (IN.) 0.046 0.053 0.046 0.053 0.068 0.053 0.068 0.077 0.068 0.077
W - WIDTH (IN.) 12.75 12.75 16 16 16 19.5 19.5 19.5 23 23
H - HEIGHT (IN.) 18.75 18.75 18.5 18.5 25 17.75 24.5 28.75 24 28.25
HL - HEIGHT OF LIQUID LINE (IN.) 16.75 16.75 16.75 16.75 22.75 22.75 22.75 26.75 26.5 26.75
HS - HEIGHT OF SUCTION LINE (IN.) 14.75 14.75 14.75 14.75 20.5 20.5 20.75 24.25 24.5 24.75
CONNECTION - LIQUID LINE 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
CONNECTION - SUCTION LINE 3/4 3/4 3/4 3/4 7/8 7/8 7/8 7/8 7/8 7/8
HORIZONTAL DRAIN PAN KIT (4) 920265 920265 920265 920265 920266 920265 920266 920267 920267
920267
UPFLOW & DOWNFLOW UNITS
A-CABINETS B-CABINETS C-CABINETS D-CABINETS
C74BAM
018C-A 02430C-A 018C-B 02430C-B 03642C-B 02430C-C 03642C-C 048C-C 042C-D 048C-D
NOMINAL CAPACITY, MIN BTUH
18,000
24,000
18,000
24,000 36,000 24,000 36,000
48,000 42,000 48,000
NOMINAL CAPACITY, MAX BTUH 30,000 30,000 42,000 30,000 42,000
INSTALLED ORIFICE SIZE (IN.) 0.046 0.053 0.046 0.053 0.068 0.053 0.068 0.077 0.068 0.077
W - WIDTH (IN.) 14.25 14.25 17.5 17.5 17.5 21 21 21 24.5 24.5
H - HEIGHT (IN.) 20.75 20.75 20.75 20.75 26.75 26.75 26.75 30.25 30.25 30.25
HL - HEIGHT OF LIQUID LINE (IN.) 17.5 17.5 17.5 17.5 23.5 23.5 23.5 27 27 27
HS - HEIGHT OF SUCTION LINE (IN.) 15.5 15.5 15.5 15.5 21.5 21.5 21.5 25 25 25
CONNECTION - LIQUID LINE 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
CONNECTION - SUCTION LINE 3/4 3/4 3/4 3/4 7/8 7/8 7/8 7/8 7/8 7/8
HORIZONTAL DRAIN PAN KIT (4) 920265 920265 920265 920265 920266 920266 920266 920267 920267 920267
HORIZONTAL UNITS
A-CABINETS B-CABINETS C-CABINETS D-CABINETS
C74BHM
018C-A 02430C-A 018C-B 02430C-B 03642C-B 02430C-C 03642C-C 048C-C 042C-D 048C-D
NOMINAL CAPACITY, MIN BTUH
18,000
24,000
18,000
24,000 36,000 24,000 36,000
48,000 42,000 48,000
NOMINAL CAPACITY, MAX BTUH 30,000 30,000 42,000 30,000 42,000
INSTALLED ORIFICE SIZE (IN.) 0.046 0.053 0.046 0.053 0.068 0.053 0.068 0.077 0.068 0.077
W - WIDTH (IN.) 14.25 14.25 17.5 17.5 17.5 21 21 21 24.5 24.5
H - HEIGHT (IN.) 26.75 26.75 26.75 26.75 26.75 26.75 26.75 30.25 30.25 30.25
HL - HEIGHT OF LIQUID LINE (IN.) 23.5 23.5 23.5 23.5 23.5 23.5 23.5 27 27 27
HS - HEIGHT OF SUCTION LINE (IN.) 21.5 21.5 21.5 21.5 21.5 21.5 21.5 25 25 25
CONNECTION - LIQUID LINE 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
CONNECTION - SUCTION LINE 3/4 3/4 3/4 3/4 7/8 7/8 7/8 7/8 7/8 7/8
NOTES:
1. Individual restrictors are available by part number - PN664*** (where *** represents the size). Example: 664103 is a restrictor 0.103 in diameter.
2. Refer to sales specification sheets for Listed/Certified combinations of equipment and required accessories.
3. Refer to the current AHRI Directory for certified ratings of split systems.
4. Not required for “H” horizontal ready coils.
TABLE 3. C74BA UNCASED COIL SPECIFICATIONS (ORIFICE ONLY)
TABLE 4. C74BA CASED COIL SPECIFICATIONS (ORIFICE ONLY)
TABLE 5. C74BH CASED COIL SPECIFICATIONS (ORIFICE ONLY)

Nortek C74BA Series Specifications

General

Brand	Nortek
Model	C74BA Series
Category	Air Conditioner
Language	English