Rinnai RC80I REU-KA2530FFUD-US, RC98i, REU-KA3237FFUD-US, Rinnai/Ubbink, Heat-Fab, Metal-FabInc

Maximum Vent Length

1.Determine the number of 90 degree elbows in the vent system. Two 45 degree elbows count as one 90 degree elbow.

2.Refer to the table to find the maximum vent length based on the number of elbows.

3.Follow the applicable note.

Example: If you have one elbow then your maximum vent length is 35 feet (10.7 m). If your actual length is greater than 15 ft (4.6 m) then move switch no. 1 (SW1) to OFF.

Number of 90° Elbows

0	1	2	3	4	5	6
41 ft 1	35 ft 2	29 ft 3	23 ft 4	17 ft 4	11 ft 4	5 ft 4
(12.5 m)	(10.7 m)	(8.8 m)	(7.0 m)	(5.2 m)	(3.4 m)	(1.5 m)

1If the length is greater than 21 ft (6.4 m) then move

switch no. 1 (SW1) to OFF. Notes 1234

2If the length is greater than 15 ft (4.6 m) then move switch no. 1 (SW1) to OFF.

3If the length is greater than 9 ft (2.7 m) then move switch no. 1 (SW1) to OFF.

4Move switch no. 1 (SW1) to OFF.

Switch No.

ON

O1

F

F 2

3

4

5

6

7

8

Vent Products
Listed and Tested Vent Products for RC80i		REU-KA2530FFUD-US
	RC98i	REU-KA3237FFUD-US
Manufacturer	Product	Parts
Rinnai/Ubbink	Rolux Condensing Vent
	System	Refer to the manufacturer’s technical literature for
Selkirk / Heat-Fab	Saf-T Vent SC system
		specific part numbers and instructions.
Metal-Fab	Corr/Guard Vent/Air
	Intake System

Vent Manufacturer Contact Information for Installation Instructions and Parts Lists:

Rinnai/Ubbink		Heat-Fab		Metal-Fab Inc.
Telephone: 800-621-9419		Telephone:	800-772-0739	Telephone:	800-835-2830
Fax:	678-829-1666	Fax:	413-863-4803		316-943-2351
Web Site:	www.rinnai.us	E-mail:	custsvc@heat-fab.com	Fax:	316-943-2717
		Web Site:	www.heatfab.com	E-mail:	info@mtlfab.com
				Web Site:	www.metal-fabinc.com
26		Manual - Rinnai Condensing Water Heaters