Page 3
SPECIFICATIONS
20 − 25 TON
General
Data
Nominal Tonnage
20 Ton
25 Ton
Model No.
TCA240S2B
TCA240H2B
TCA300S2B
Efficiency Type
Standard
High
Standard
Cooling
Performance
Gross Cooling Capacity − Btuh
(kW)
243,000 (71.2)
251,000 (73.5)
302,000 (88.4)
Net Cooling Capacity − Btuh (kW)
234,000 (68.5)
240,000 (70.3)
286,000 (83.7)
ARI Rated Air Flow − cfm (L/s)
8000 (3775)
7500 (3540)
9000 (4245)
Total Unit Power − kW
24.1
22.2
30.1
1
EER (Btuh/Watt)
9.7
10.8
9.5
3
Integrated Part Load Value (Btuh/Watt)
10.1
11.2
9.7
Refrigerant Type
R−22
R−22
R−22
Refrigerant
Charge
Furnished
Circuit 1
11 lbs. 8 oz. (5.22 kg)
11 lbs. 8 oz. (5.22 kg)
11 lbs. 0 oz. (4.99 kg)
Circuit 2
11 lbs. 8 oz. (5.22 kg)
11 lbs. 8 oz. (5.22 kg)
11 lbs. 0 oz. (4.99 kg)
Circuit 3
11 lbs. 8 oz. (5.22 kg)
11 lbs. 8 oz. (5.22 kg)
11 lbs. 0 oz. (4.99 kg)
Circuit 4
− − −
11 lbs. 8 oz. (5.22 kg)
11 lbs. 0 oz. (4.99 kg)
Compressor Type (no.)
Scroll (3)
Scroll (4)
Scroll (4)
Electric Heat Available −
See page 18 for capacities
15, 30, 45, 60 or 90 kW
Outdoor
Coils
Net face area − sq. ft. (m
2
) total
56.0 (5.2)
56.0 (5.2)
56.0 (5.2)
Tube diameter − in. (mm)
3/8 (9.5)
3/8 (9.5)
3/8 (9.5)
Number of rows
2
2
2
Fins per inch (m)
20 (787)
20 (787)
20 (787)
Outdoor
Coil Fans
Motor horsepower (W)
(4) 1/3 (249)
(4) 1/3 (249)
(4) 1/2 (373)
Motor rpm
1075
1075
1075
Total Motor watts
1395
1395
1800
Diameter − in. (mm) − No. of blades
(4) 24 (610) − 3
(4) 24 (610) − 3
(4) 24 (610) − 3
Total Air volume − cfm (L/s)
15,450 (7290)
15,450 (7290)
16,000 (7550)
Indoor
Coils
Net face area − sq. ft. (m
2
) total
22.3 (2.07)
22.3 (2.07)
22.3 (2.07)
Tube diameter − in. (mm)
3/8 (9.5)
3/8 (9.5)
3/8 (9.5)
No. of rows
3
4
4
Fins per inch (m)
14 (551)
14 (551)
14 (551)
Drain connection − number & size
(1) 1 in. NPT coupling
(1) 1 in. NPT coupling
(1) 1 in. NPT coupling
Expansion device type
Balanced Port Thermostatic Expansion Valve, removeable power head
4, 5
Indoor
Blower and
Drive
Selection
Nominal motor HP
Low Static
5 hp (3.7 kW)
5 hp (3.7 kW)
7.5 hp (5.6 kW)
Standard Static
7.5 hp (5.6 kW)
7.5 hp (5.6 kW)
10 hp (7.5 kW)
High Static
10 hp (7.5 kW)
10 hp (7.5 kW)
N/A
Max. usable motor
output (US Only)
Low Static
5.75 hp (4.3 kW)
5.75 hp (4.3 kW)
8.63 hp (6.4 kW)
Standard Static
8.63 hp (6.4 kW)
8.63 hp (6.4 kW)
11.5 hp (8.6 kW)
High Static
11.5 hp (8.6 kW)
11.5 hp (8.6 kW)
N/A
Drive Kit
Low Static
#2 − 685− 865 rpm
#2 − 685−865 rpm
#7 − 850−1045 rpm
Standard Static
#7 − 850−1045 rpm
#7 − 850−1045 rpm
#6 − 1045−1285 rpm
High Static
#6 − 1045−1285 rpm
#6 − 1045−1285 rpm
N/A
Field Installed Low Static Drive Kit
#9 − 685−865 rpm
#9 − 685−865 rpm
#7 − 850−1045 rpm
Blowerwheelnominaldiameterxwidth
(2) 15 x 15 in. (381 x 381 mm)
Filters
Type of filter
Disposable, pleated MERV 7
No. and size − in. (mm)
(6) 24 x 24 x 2 (610 x 610 x 51)
Electrical characteristics
208/230V, 460V or 575V − 60 hertz − 3 phase
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
Certified in accordance with the ULE certification program, which is based on ARI Standard 340/360; 95
_
F (35
_
C) outdoor air temperature and 80
_
F (27
_
C) db/67
_
F (19
_
C) wb
entering evaporator air; minimum external duct static pressure.
2
Tested at conditions included in with ARI Standard 340/360; 95
_
F (35
_
C) outdoor air temperature and 80
_
F (27
_
C) db/67
_
F (19
_
C) wb entering evaporator air; minimum external
duct static pressure.
3
Integrated Part Load Value tested at 80
_
F (27
_
C) outdoor air temperature.
4
Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of motors fur-
nished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep within the service factor limita-
tions outlined on the motor nameplate.
5
Stocked models are available with standard static drives. High static drives are factory installed (configure to order). Low static drive can be factory installed (configure to order) or
standard static drives can be converted to low static with field installed kit.
