Roberts Gorden 250 Manual Do Utilizador
UHA S
TANDARD
U
NIT
H
EATER
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
16 of 51
Figure 9: Separated Combustion Heater - Vertical and Horizontal Vent Termination
Figure 10: Concentric Vent Box
12" (31 cm)
Minimum from air inlet to vent
termination.
Vent
Termination
Termination
Listed Thimble through
Combustible Wall
Vent**
12" (31 cm)
Minimum from wall
to vent termination.
Minimum from wall
to vent termination.
Air Intake
12" (31 cm)
Minimum from air inlet to vent
termination.
Minimum from air inlet to vent
termination.
Air Intake
Termination
Termination
NOTE: Vent supports not shown
Vent**
Air Intake*
12" (31 cm)
Minimum from roof to vent
termination.
Minimum from roof to vent
termination.
Vertical
Option
Horizontal
Option
90°
Bend
Bend
Model
**Vent Diameter
Part Number
UHA[X]S 150 - 400
4" (10 cm)
90502102
Model
*Air Intake Diameter
Part Number
UHA[X]S 150 - 250
4" (10 cm)
90502102
UHA[X]S 300 - 400
5" (13 cm)
90502105
4" (10 cm) Single
Wall Vent Pipe
(By Others)
Wall Vent Pipe
(By Others)
Seal joint between single wall
and Type B vent with silicone sealant.
and Type B vent with silicone sealant.
Use 3 sheetmetal
screws equally
spaced around joint.
screws equally
spaced around joint.
Use 3 sheetmetal
screws equally
spaced around collar.
screws equally
spaced around collar.
Concentric
Vent Box
Vent Box
6" (15 cm) or 8" (20 cm)
Single Wall Inlet Air Pipe
(By Others)
Single Wall Inlet Air Pipe
(By Others)
One piece of 4" (1
0 cm) diamet
er, 1/4" (6 cm)air
space t
ype
“B”
vent.
Selkir
k Model R
V or e
quiv
alent.
(By other
s)
Combustion Air
to Heater
to Heater
Toward
Outside
Outside
Exhaust
from Heater
from Heater
4" (10 cm) or
5" (13 cm)
5" (13 cm)