Horizontal Or Vertical Venting Flexible Duct (Flex-Vent) - Pentair MASTERTEMP 200HD Installation And User Manual

Section 1. Installation
9. Vent Termination – Horizontal (Continued)
Allow at least 1 M (3 ft) vertical clearance over vent
termination when terminating under an overhang or deck.
Avoid corners or alcoves where snow or wind could have
an effect. Exhaust may affect shrubbery and some building
materials. Keep shrubbery away from termination. To
prevent staining or deterioration, sealing or shielding
exposed surfaces may be required. See Figure 24.
Fire Hazard. Do not run the heater vent into a common vent with any other appliance. Do not run the Special Gas Vent into, through,
or within any active vent such as a factory built or masonry chimney.
NOTE: After installation, installer must check for correct and safe operation of the heater.

HORIZONTAL OR VERTICAL VENTING FLEXIBLE DUCT (FLEX-VENT)

(See page 25, and 26)
NOTE: THE ALLOWABLE VENT RUNS FOR EACH VENT PIPE DIAMETER ARE DIFFERENT AND CAN
NOT BE EXCEEDED.
It is recommended that vent runs over 5.4 m (18 ft) may need to be insulated to reduce condensation related problems
and/or the use of a condensate trap in the vent run close to the heater may be necessary in certain installations such as
cold climates. Horizontal vents 1 m (3 feet) or less in length do not require a condensate tee. The MasterTemp heater is
suitable for through-the-wall venting. See Table 7 for maximum permissible Flexible Vent lengths.
Do NOT combine exhaust vent pipes to a common exhaust vent in multiple unit installations. Run separate
vent pipes.
Flexible Vent Section
Figure 25.
MINIMUM FLEX BEND RADIUS
P/N 474131 Rev. M 8/2020
Metal
Vent
Body
WARNING
CAUTION
150 mm (6 in.) Flex-Vent (Vertical or Horizontal)*
No. of 90° Bends
0
110 mm
1
(4.33 in)
Radius
*Minimum vent length is 0.34M (1 ft.) or in accordance with vent manu-
Minimum
facturer's instruction, and local and national codes. Horizontal vents 1 m
(3 in) or less in length do not require a condensate tee, but must slope
down toward the outlet at 2 cm to the meter (1/4 in / ft.) to allow conden-
sate to drain. ** Radius minimum to be 110 mm (4.33 in) as shown in
Figure 25.
Table 7.
Section 1.
Metal Special
Support
Gas Vent
weight
requires
of pipe
Appliance
Adapter
Condensate
Tee
Slope at least
2 cm per Meter
Condensate
(1/4" per foot)
drain w/Trap
down towards
(Optional) condensate drain
Maximum Length in Feet (M)
11.6 m (38 ft.)
MasterTemp Pool and Spa Heater
Installation
29
Listed
Terminal
Figure 24.
8 m (26 ft.)