Reznor RPB Unit Installation Manual - Manual (Page 5)

Form I-RPB, P/N 131782 R12, Page 5
4.2 Clearances
REQUIRED CLEARANCES
Model
Series
Top
Sides Bottom
Control Opposite
To
Combustibles
To Non-
Combustibles
RPB
36"
(915mm)
Width of furnace
plus 6" (152mm)
6"
(152mm)
0 * 0
* When installed on a roof
curb on a combustible
roof, the roof area
enclosed within the curb
must be either ventilated,
left open, or covered with
non-combustible material
which has an "R" value of
at least 5.0. See FIGURE
3A, page 7.
86-11/16 (2202)
Blower
Cabinet
Furnace
Airflow
Field Control
Wiring
Entrance
39-3/16*
(995)
Optional Downturn Plenum Cabinet
A
38-1/8**
(968)
Field Wiring
(line voltage)
Gas Curb
Cap
C
B
38-5/8 (981)
4-3/32
(104)
19-1/2
(495)
19-1/2
(495)
85-13/16 (2180)
Optional
Return
Air Inlet
Vertical
Discharge
1-1/32
(26)
4-1/4
(108)
4-1/4
(108)
Left Side View with Vertical Discharge
Front View with
Opt ional Vertical Discharge
(Downturn Plenum
Option AQ5 or AQ8)
4-3/32
(104)
5 (127)
19-1/2
(495)
4-5/8
(117)
31-11/32
(796)
43-17/32 (1106)
Screened
Outside
Air Hood -
Option AS2
5 (127)
19-1/2
(495)
Blower
Cabinet
1-1/32 (26) 61-3/8 (1559)
Control Wiring
Entrance
Furnace
Airflow
Curb
Cap
Gas
Field Wiring
(line voltage)
61-7/8 (1572)
A
38-1/8**
(968)
3/4(19) 3/4(19)
D
B
C
Left Side View with Horizontal Discharge
Front View with
Standard Horizontal Discharge
3/4(19)
3/4(19)
39-3/16*
(995)
18
(457)
11-1/4(286)
8-1/2(215)
NOTES:
*Height from top of
cabinet to top of curb
cap.
**Height from top of
cabinet to bottom of
cabinet side.
**** The two-position
discharge dampers in
Option AQ8 fit in the
discharge air opening.
The damper motor fits
inside the downturn
plenum cabinet.
Provide clearance to combustibles as shown in the table. Clearance to combustibles is
defined as the minimum distance from the heater to a surface or object that is neces-
sary to ensure that a surface temperature of 90°F above the surrounding ambient tem-
perature is not exceeded. Clearance is also required to sides of furnace for combustion
air space and for convenient installation and burner control system service.
5.0 Mounting
Approximate Net Weight (lbs/kg) - Model RPB Series Systems
(blower and furnace sections only)
Size 125 150, 175 200, 225 250, 300 350 400
Weight
lbs 482 520 534 588 630 662
kg 219 236 242 267 286 300
5.1 Weights
5.2 Rigging and
Lifting
Lifting holes are provided for rigging. Use spreader bars when lifting to prevent chains
or cables from damaging the unit. If the unit is being mounted on a roof curb, apply
caulking to the roof curb prior to lifting the unit and setting it on the curb. See FIGURE
3A, page 7.
If the system includes an outside air hood, attach it after the unit is in place.