Specification Sheet

6 Rheem Manufacturing Company
Airflow Performance
Airflow performance data is based on cooling performance
with a coil and no filter in place. Select performance table for
appropriate unit size, voltage and number of electric heaters to
be used. Make sure external static applied to unit allows opera-
tion within the minimum and maximum limits shown in table
below for both cooling and electric heat operation. For optimum
blower performance, operate the unit in the .1 [2.54 mm] to 1.00
inches [25.4 mm] W.C. external static range. Units with coils
should be applied with a minimum of .1 inch [2.54 mm] W.C.,
external static.
Cabinet
Size
Blower
Nominal
Airflow
CFM
0.20 0.40 0.60 0.80
21
10 x 8
1/3
575
CFM
571 [269] 573 [270] 575 [271] 577 [272]
RPM
525 657 790 722
0.90
578 [273]
988
0.70
576 [272]
856
0.50
574 [271]
724
0.30
572 [270]
591
ECM
CFM [L/s] Air Delivery/RPM/Watts-230 Volts
External Static Pressure – Inches W.C. [kPa]
0.10
570 [269]
459
1.00
579 [273]
1054
174
816 [385]
1003
247
140
805 [380]
873
199
105
794 [375]
744
151
71
783 [370]
615
104
37
772 [364]
486
56
191
821 [387]
1061
271
Watts
54 88 123 157
775
CFM
778 [367] 788 [372] 799 [377] 810 [382]
RPM
550 679 809 938
Watts
80 128 175 228
Nominal
Cooling
Capacity
2 Ton
Y1
Y2
Size
Motor HP
Thermostat
Input
Airflow Performance and Electrical Data
Blower Motor Electrical Data
Nominal Cooling
Capacity Tons
Voltage Phase HertzHP [W] RPM
Circuit
Amps.
Minimum
Circuit
Ampacity
Maximum
Circuit
Protector
2 208/230 1 601/3 [249] 300-1100 1.7 4.0 15
Electric Heat Electrical Data
Installation of the UL Listed original equipment manufacturer provided heater kits
listed in the table below is recommended for all auxiliary heating requirements.
Air Handler
Cabinet Size/
Cooling
Capacity
Manufacturer
Model Number
Type Supply
Circuit
Voltage PH/HZ Heater kW Heater AMPS
Maximum
Circuit
Protection
21" / 2 Ton
RXBH-24A05J Single 208/240 1/60 3.6/4.8 17.3/20.0 25/30
RXBH-24A07J Single 208/240 1/60 5.4/7.2 26.0/30.0 35/40
RXBH-24A10J Single 208/240 1/60 7.2/9.6 34.6/40.0 50/60
Motor
Ampacity
1.7
1.7
1.7
Minimum
Circuit
Ampacity
24/28
35/40
46/53
• Supply circuit protective devices may be fuses or “HACR” type circuit breakers.
• Largest motor load is included in single circuit and multiple circuit 1.
• If non-standard fuse size is specified, use next size larger standard fuse size.
• J Voltage (230V) single phase air handler is designed to be used with single or three phase 230 volt electric heaters. In the case of connecting 3-phase power to the air handler terminal
block without the heater, bring only two leads to the terminal block cap, insulate and fully secure the third lead.
[ ] Designates Metric Conversions
IMPORTANT: Observe airflow operating limits. Do not operate above 1.0 in. W.C. system external static.
Electrical Wiring
Power Wiring
• Field wiring must comply with the National Electrical Code
(C.E.C. in Canada) and any applicable local ordinance.
• Supply wiring must be 75°C minimum copper conductors only.
• See electrical data for product Ampacity rating and Circuit
Protector requirement.
Grounding
• This product must be sufficiently grounded in accordance with
National Electrical Code (C.E.C. in Canada) and any applicable
local ordinance.
• A grounding lug is provided.