Specification Sheet

Air
Electrical Data
RHML Series
12
Model Voltage Phase* Hertz HP RPM Speeds
Circuit
Amps.
Minimum
Circuit
Ampacity
Maximum
Circuit
Protector
2421
208/240 1 & 3 60
1/3 300-1100 4
1.6 2 15
3621 3/4 300-1100 4
3.8 5 15
6024/4824 3/4 300-1100 4
4.6 6 15
Air Handler
Model
Heater
Model
No.
Heater kW
(208/240V)
(480V)
Ph/Hz
No.
Elements
- kW Per
Type Supply
Circuit
Single Circuit
Multiple Circuit
Circuit
Amps.
Motor
Ampacity
Minimum
Circuit
Ampacity
Maximum
Circuit
Protector
(-)HML
2421
RXBH-1724?03J 2.25/3.0 1/60 1-3.0 SINGLE 10.8/12.51.6 1.6
16/18 20/20
RXBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 1.6
24/27 25/30
RXBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 1.6
35/40 35/40
RXBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 1.6
46/52 50/60
RXBH-1724A13J 9.4/12.5 1/60 3-4.17 SINGLE 45.1/52.1 1.6
59/68 60/70
RXBH-1724A13J
3.1/4.2 1/60 1-4.17 MULTIPLE CKT 1 15.0/17.4 1.6
21/24 25/25
6.3/8.3 1/60 2-4.17 MULTIPLE CKT 2 30.1/34.7 0
38/44 40/45
RXBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 1.6
21/24 25/25
RXBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 1.6
27/31 30/35
RXBH-1724A13C 9.4/12.5 3/60 3-4.17 SINGLE 26.1/30.1 1.6
35/40 35/40
(-)HML
3621
RXBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 3.8
27/30 30/30
RXBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 3.8
38/43 40/45
RXBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 3.8
48/55 50/60
RXBH-1724A15J 10.8/14.4 1/60 3-4.8 SINGLE 51.9/60.0 3.8
70/80 70/80
RXBH-1724A15J
3.6/4.8 1/60 1-4.8 MULTIPLE CKT 1 17.3/20.0 3.8
27/30 30/30
7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0.0
44/50 45/50
RXBH-1724A18J 12.8/17.0 1/60 4-4.26 SINGLE 61.6-70.8 3.8
82/94 90/100
RXBH-1724A18J
6.4/8.5 1/60 2-4.26 MULTIPLE CKT 1 30.8/35.4 3.8
44/49 45/50
6.4/8.5 1/60 2-4.26 MULTIPLE CKT 2 30.8/35.4 0.0
39/45 40/45
RXBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 3.8
24/27 25/30
RXBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 3.8
30/34 30/35
RXBH-1724A15C 10.8/14.4 3/60 3-4.8 SINGLE 30.0/34.6 3.8
43/48 45/50
RXBH-1724A18C 12.8/17.0 3/60 3-2.84 SINGLE 35.6-41.0 3.8
50/56 50/60
RXBH-1724B05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 3.8
27/30 30/30
RXBH-1724B07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 3.8
38/43 40/45
RXBH-1724B10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 3.8
48/55 60/60
* Blower motors are all single phase motors.
• ? Heater Kit Connection Type A = Breaker B = Terminal Block C = Pullout Disconnect
➀ D Voltage = 480 Volts.
*Values only. No single point kit available.
NOTES:
• Electric heater BTUH - (heater watts + motor watts) x 3.414 (see airflow table for motor watts.)
• Supply circuit protective devices may be fuses or “HACR” type circuit breakers.
• If non-standard fuse size is specified, use next size larger standard fuse size.
• Largest motor load is included in single circuit or circuit 1 of multiple circuits.
• Heater loads are balanced on 3 phase models with 3 or 6 heaters only.
• No electrical heating elements are permitted to be used with A voltage (115V) air handler.
• J voltage (208/240V) single phase air handler is designed to be used with single or three phase
208/240V volt electric heaters. In the case of connecting 3 phase power to air handler terminal block
without the heater, bring only two leads to terminal block, cap, insulate and fully secure the third lead.
• Do not use 480V electrical heaters on 208/240V air handlers.
• If the kit is listed under both single and multiple circuits, the kit is shipped from factory as multiple
circuits. For single phase application, Jumper bar kit RXBJ-A21 and RXBJ-A31 can be used to convert
multiple circuits to a single supply circuit. Refer to Accessory Section for details.
[ ] Designates Metric Conversions
Electrical Data – With Electric Heat
Installation of the U.L. Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all
auxiliary heating requirements.
Electrical Data – Blower Motor Only – No Electric Heat