Rinnai RHEPM11530N, Руководство по регулированию дополнений

Страница: 14 / 36

14
HE+ Series Modulating Supplemental Manual
Modulating
Maximum
Input (Btuh)
Do Not Exceed
Maximum Combined
System Length
Max. Air Duct
Length
(
by Duct Diameter
)
Max. Vent
Length
Individual: 4” Ø
OR
Combined: 6” Ø
With 4”
Air Duct
With 5”
Air Duct
4” Ø 5” Ø
80,000
70 ft 80 ft 20 ft 30 ft 30 ft
115,000
80 ft 90 ft 20 ft 30 ft 30 ft
155,000
90 ft 100 ft 20 ft 30 ft 30 ft
205,000 Use 5ӯ
110 ft
Use 5ӯ
30 ft 30 ft
250,000
Use 5ӯ 120 ft Use 5ӯ 30 ft 30 ft
Example
155,000 Btuh Heater:
Tube Heater Length 50 ft
1 x 90° elbow (vent) 5 ft
Straight vent 15 ft
1 x 90° elbow (duct) 5 ft
Air Duct: 4” Ø 15 ft
Combined Length 90 ft
Max. Allowed 90 ft
Additional 10’ for 5”
Ø
Air Duct
TABLE 4 COMBINED SYSTEM LENGTH: TUBE + AIR DUCT + VENT
HEATER EXPANSION AND VENT CONFIGURATION
A radiant tube heater will expand and contract as it heats and cools. Configuration of the vent must
allow for heater expansion.
VERTICAL VENT : Orientation of the vent at 90° to heater will allow for heater expansion and
contraction.
HORIZONTAL VENT : (See FIG. 7)
◼
Wall Thimble or flashing at wall
that allows movement of the vent
through the opening. Do not seal
the vent to the thimble or flashing
with caulking
OR
◼
Offset vent with two x 90° elbows.
Install minimum 12 inch [305 mm]
length of straight vent between
elbows. Vent can be sealed with
caulking at non - combustible wall.
◼
Other means of slip fit installation
of the vent are acceptable provid-
ing there is adequate allowance
for free expansion and contraction
of the system, and free flow of
vent gases.
FIGURE 7: ALLOW FOR HEATER EXPANSION
- HORIZONTAL VENT - TOP VIEW
COMMON VENTING
For vertical vent only, two heaters can be commonly vented using 4” x 6” x 4” Vent Tee 902000008.
Both heaters must be operated using one common thermostat. Common vent is 6 inch [150 mm] di-
ameter.
Category III (horizontal vent) heaters cannot be common vented.