Space-Ray PGR 100-L5, Инструкция по установке и эксплуатации, Страница: 39 / 62

Form 43343120
-38- July 2021
SINGLE HEATER VENTING (HORIZONTAL THROUGH SIDEWALL)
When venting the heater horizontally through a combustible outside sidewall, the same requirements listed
previously for venting Vertical Through The Roof apply except as follows:
40.
A vent passing through a combustible wall must pass through an approved clearance thimble (Air-Jet #4VT
or Ameri-Vent #4EWT or other thimbles) that are listed by a nationally recognized testing agency; double
wall Type B vent must be used for the portion of the vent system which passes through the combustible
sidewall.
41. An approved vent cap (Breidert or equal) must be attached to the end of the vent pipe.
NOTE: To minimize problems associated with condensation in long horizontal runs, vent pipe can be insulated.
42.
Use the following correction factors to obtain the equivalent length when elbows are used:
•
Subtract 10 ft. for each elbow beyond 15 ft. from the heater.
•
Subtract 15 ft. for each elbow within 15 ft. of the heater.
43. Limit to (2) 90º elbows in the vent system.
44. When venting through a sidewall, the horizontal vent pipe shall fall 1/4 inch per 10 feet down from the start
of the vent system to the vent terminal. All portions of the vent pipe shall be supported to prevent sagging.
(6’ spacing is recommended)