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2. Installation
22 | Section
8. 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.
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 Figures 24, 25, 26 & 27)
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 8 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 27.
™
MASTERTEMP
Pool and Spa Heater Installation and User's Guide
WARNING!
CAUTION
110 mm (4.33 in)
Radius Minimum
MINIMUM FLEX BEND RADIUS
Metal Special
Support
Gas Vent
weight
requires
of pipe
Appliance
Adapter
Condensate
Tee
Metal
Vent
Body
Slope at least
(2 cm per Meter)
Condensate
1/4" per foot
drain w/Trap
down towards
(Optional)
condensate drain
Figure 26.
N
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Table 8.
Approved
T erminal
T
12" (30.5 cm) Max.
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Clearance
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