Bock Water heaters OT125, Инструкция по установке и эксплуатации

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Install piping through the wall as shown in Figure 13. Adequate length of pipe must protrude
beyond the exterior wall for attachment of the termination fitting. The recommended distance. A
90
°
elbow is supplied with the water heater for the termination fitting on the air intake. If other
fittings are required they must be purchased separately. The supplied 90
°
elbow contains a
protective screen to block foreign debris or small animals from entering the pipe. If a screen is
preferred at the exhaust termination, it must have a low resistance to airflow. Refer to the type of
screen used in the supplied elbow. A screen that significantly restricts airflow will reduce the
performance of the water heater and could cause nuisance control lockouts. Complete the installa-
tion of the remainder of the vent and air intake system and attach to the water heater as shown in
Figure 14. Horizontal sections of the exhaust vent shall slope upward away from the water heater a
minimum of 1/8" per foot (10 mm per meter). This will allow the condensate in the vent to run
back to the condensate drain on the water heater. Horizontal sections of air intake piping shall
slope downward away from the water heater a minimum of 1/8" per foot.
NOTE: If the air intake and exhaust vent terminations will be located on a side of the building
that is frequently subjected to high winds, it is recommended that the air intake termination is
located 24” (center-to-center) below the exhaust vent termination.
CAUTION
Annular spaces around vent pipe wall penetrations shall be permanently sealed using
approved materials to prevent entry of combustion products into the building.
Figure 13: Horizontal Venting, 2-pipe termination
Figure 14: Horizontal Direct Vent Arrangement
SECTION IV: INSTALLATION