Rudd RBHM-24 Installation Manual
FORM NO. H11-521 REV. 5
Supersedes Form No. H11-521 Rev. 4
AIR HANDLERS
RBHM- SERIES
AIR HANDLERS
AND FAN COIL UNIT
Features
■ Versatile 3-way convertible design for upflow, horizontal
left and horizontal right.
■ Available from the factory in upflow and horizontal left
configurations.
■ Nominal airflow up to 1.0" external static pressure.
■ Standard factory installed high-efficiency coils.
■ The blower box is made of sturdy double wall construc-
tion with .5 inch [12.7 mm] of foil faced insulation for
excellent sound and insulating characteristics.
■ Designed for use with exterior high-static filters.
■ Circuit breaker (standard on units with more than 11 kW)
meets U.L. and cUL requirements for service disconnect.
■ Factory installed electric heat provides exact heat for
indoor comfort over a variety of applications.
■ Dip switch settings for selectable, customized cooling air-
flow over a wide variety of applications.
■ On-demand dehumidification-terminal that adjusts airflow to
help control humidity for unsurpassed comfort in cooling mode.
2 Rheem Heating, Cooling and Water Heating
RBHM- Series
■ Quiet, energy efficient ECM motor technology providing nomi-
nal airflow to 1.0 inch [25 kPa] of external static pressure.
■ Interface board with dip switches conveniently located in the
blower compartment allows for precise, field selectable airflow
to meet the requirements of particular applications.
■ Selectable continuous fan “on” options.
■ Attractive pre-painted cabinet exterior.
■ The blower box has rugged double wall steel cabinet construc-
tion, designed for added strength and versatility.
■ .5" foil faced insulation mechanically retained in blower
compartment.
■ Four leg, rubber insulated wire motor mount.
■ Circuit breakers standard on 1-phase models above 11 kW
and optional on models with 11 kW or less.
■ Models supplied with circuit breakers meet UL and CUL
requirements as a service disconnect switch.
■ Provisions for field electrical connections from either side of air
handler cabinet.
■ Tab lock blower housing with integrated electric heaters, con-
trols, motor and blower. Slide out design for service and maintenance convenience.
[ ] Designates Metric Conversions
■ Exclusive dependable Incoloy sheath type electric heating
elements located in the blower housing provide mixed warm
air.
■ Field convertible for vertical upflow, horizontal left hand or right
hand air supply.
■ Indoor coil design provides low air side pressure drop and
high performance. All coils come with PVC condensate elbow
standard.
■ All indoor coils have copper tubing and aluminum fins.
■ Molded polymer corrosion resistant condensate drain pan is
provided on all indoor coils.
■ Both supply and return duct flanges provided as standard on
air handler cabinet.
■ Connection points for both high voltage and low voltage control
wiring inside air handler cabinet.
■ Concentric knockouts are provided for power connection to
cabinet. Installer may pull desired hole size up to 2 inches
[51 mm] for 1
1
/2 inch [38 mm] conduit.
■ Front refrigerant and drain connections.
Engineering Features
BLOWER
SECTION
ECM
MOTOR
GENERAL TERMS OF
LIMITED WARRANTY
Rheem will furnish a replacement for any part of this
product which fails in normal use and service within the
applicable periods stated, in accordance with the terms of
the limited warranty.
Limited Parts Warranty ........................................10 years.*
For Complete Details of the Limited Warranty, Including
Applicable Terms and Conditions, See Your Local Installer or
Contact the Manufacturer for a Copy.
Rheem Heating, Cooling and Water Heating 3
Model Identification
NOTES: 1) RBHM Air Handler cannot be ordered without coil.
2) Electrical heat designation: set electric heat data for actual heater kW represented by number above.
3) Electric heater BTUH = (heater watts + motor watts) x 3.412 (See airflow table for motor watts).
4)
†
Air Handlers with A-Coils do not come with a factory installed air filter. External filter rack or other means of filtration is required.
[ ] Designates Metric Conversions
R B H M 17 J 11 S M Q
Rheem Blower
Unit
Type
Unit
H = Air
Handler
Design
Series
Cab.
Width
17
24
25
26
Electrical
Designations
J = 208/240V,
1PH, 60HZ
Electrical Heat (KW) Designation
See Electrical Heat Data for
Actual KW at 208 Volts.
00 = No Heat
06 = 4.9 kW
07 = 7.0 kW
11 = 10.0 kW
14 = 14.0 kW
Control
Designation
N = No Circuit
Breakers Single
Supply Circuit
S = Circuit Breaker(s)
Single Supply
Circuit
Airflow
Direction
M = Multiposition
Coil
Code
Additional
Inform.
1) Motor H.P. [W]
2) Blower CFM [L/s]
1st/2nd Stage
3) Blower Wheel
Dia./Width [mm]
4) Filter Size
Width/Length [mm]
5) Outdoor
Unit Size
17 =
17.5"
24 =
24.5"
25 =
24.5"
00, 06, 07, 11
J
N
Q = RCQD-2417AS
06, 07, 11 S
00, 07, 11 N
J
R = RCQD-3624AS
07, 11, 14 S
1) 1/3 H.P. [249]
2) 600/800 CFM
[283/378]
29
13
32 x 3
/
3) 11
[302 x 96]
†
4) N/A
5) -024
1) 1/2 H.P. [373]
2) 900/1200 CFM
[425/566]
29
3) 11
/32 x 71/8
[302 x 181]
†
4) N/A
5) -036
16
/
M = Multiposition
00, 11 N
J
S= RCQD-4824AS
11, 14, 18 S
1) 3/4 H.P. [559]
2) 1200/1600 CFM
[566/755]
29
3) 11
/32 x 91/2
[302 x 241]
†
4) N/A
5) -048
11 N
26 =
24.5"
J
11, 14, 18, 21 S
1) 1 H.P.
2) 1275/1700 CFM
[602/802]
T= RCQD-6024AS
29
3) 11
[302 x 241]
4) N/A
/32 x 91/2
†
5) -060
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