Reznor RXH (Outdoor PreevA) Unit Installation Manual - Manual (Page 9)

Form I-RDH/REH/RHH/RXH (12-14), P/N 215210 R14, Page 9
Side View - RDH
Optional
Mixing Box
Blower Cabinet & Heat Section
E
Mounted
Height
6-1/4”
159mm C (length inside curb cap)
C1, C2 C3, C4
A5, A6
A (length of system base)
Return
Air with
Optional
Mixing
Box only
Supply Air with Optional Downturn
3/4”(19 mm)
Duct Flange
Rear View
with Optional
Mixing Box
Rear View of
Basic Cabinet
(If basic unit only
optional outside air hood
is installed here, see page 25.)
F
G J
H
9-1/16”
230mm
Inlet
Air
Inlet Air
with
Duct
Flange
3/4”(19 mm)
Duct Flange
D
(inside curb cap)
B
(width of base)
3-1/16”
77 mm
RDH &
RHH
cL
Combustion
Air*
Vent*
Gas Connnection*
Optional
Downturn
cL
cL
17-15/16”
455mm
P
9-1/4”
235mm
R
G
F
A1, A2
cL cL
13-11/16”
348mm
13-11/16”
348mm
K, K1, or K2
3/4”(19 mm)
Duct Flange
G
F
Optional
Evap Cooling
Module
Optional Cooling Module
A3, A4
Rear View with Optional
Evap Cooler, see page 32.
Side View - REH
Airflow
X
Optional
Downturn
Bottom View with Optional
Cooling Coil Module, Mixing Box,
and Downturn Plenum.
Rear Views
(Dimensions
apply to all
Models.)
Front View
NOTE: Side view of “no heat” Model RXH is not
illustrated but includes the blower section and heat
section cabinets less the heating components.
Dimensions here apply to “no heat” RXH only. For
RXH with hot water heat, see page 38.
NOTE: Model RHH must be mounted on a curb
and the area under the unit must be left open.
Blower Electrical Electric
Heat
Section
Electrical Supply
Inlet (pilot hole)
8-1/4
(210)
Side View of Optional Modules
Side View Dimensions A, C, E, and K are the
same for Models RDH, REH, & RXH (subject
to option availability). Model RHH side
dimensions are longer.
FIGURE 4 - Dimensions - Model RDH, REH, RHH and RXH (no heat only) with a Downturn Plenum
(bottom discharge)
NOTE: An optional evaporative cooling module (Option ECC) is always first and extends beyond the roof curb. It has no affect on
inside curb length Dimension C or K.
Dimensions Specific to each Module:
 Mixing Box (MXB), FIGURE 22, page 27.
 Evaporative Cooling Module (ECC), FIGURE 25, page 32.
 Chilled Water Cooling Coil Cabinet (AU6), FIGURE 31, page 35.
 DX Cooling Coil Cabinet (AU5), FIGURE 32A, page 36.
 DX Cooling Coil Cabinet with Reheat (AU7), FIGURE 32B, page 36.
 Hot Water Heat Module for RXH, page 39, FIGURE 36A.
Other Dimensions:
 All Configurations with Horizontal Discharge (no downturn plenum),
FIGURE 2, page 7.
 Outside Air Hood (Option AS2), FIGURE 19A, page
25.
 RDH Gas Heat, FIGURE 4 above and FIGURES
14A&B, page 22.
 REH Electric Heat, SIDE VIEW in FIGURE 4 above .
 RHH High Efficiency Model, FIGURE 2, page 7,
but with length dimensions from TABLE 4 that
include 27-1/2” (699) added for downturn plenum.
See FIGURE 15, page 23, for heat section drain
connection location.