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HORIZONTAL OR VERTICAL VENTING - USING SINGLE-WALL STAINLESS GAS
VENT
(SEE FIGURE 22, 23, & 24
Vent the heater either horizontally or vertically using an optional vent adapter of the 150 (6 in) or 102 mm (4 in) special gas
approved stainless steel vent pipes. Installation must be in accordance with all local codes and ordinances/or the latest
edition of the local code standards and/or local codes. The heater, when installed, must be electrically grounded and bonded
in accordance with local codes. Do not use a draft hood with this heater. Install the vent according to the vent manufacturer's
detailed instructions. Note: Keep a 150 mm (6 in) minimum clearance between the vent pipe and combustible surfaces.
Follow the vent manufacturer's instructions and code requirements. Do
not place any insulating materials around the vent or inside the required
clear air space surrounding the vent. See Table 5 for maximum permissible
vent lengths.
The allowable vent runs for each vent pipe diameter are
different and can not be exceeded.
Each 90-degree elbow reduces the maximum horizontal vent
run by 3.6 m (12 feet) and each 45-degree elbow in the vent run
reduces the maximum vent run by 1.8 m (6 feet). See the
Table 5 for the maximum vent lengths using 90° elbows.
It is recommended that vent runs over 5.4 m (18 feet) 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 ft) or less in length do not require a condensate tee.
The MasterTemp heater is suitable for through-the-wall venting.
Flue gases may escape into the dwelling with any cracks or loose joints in the vent pipe, or improper vent installation.
The vent pipe must be of a sealed-seam construction and for operating temperatures less than 204° C (400°F). Vent pipe
construction will be according to local code standards, approved non-corrosive material, such as stainless steel. A condensate
trap may be needed. The use of "Approved" thimbles, roof jacks and/or side vent terminals are required; and the proper
clearances to combustible materials must be maintained in accordance with type of vent pipe employed—in the absence of
a clearance recommendation by the vent pipe manufacturer, the requirements of the Uniform Mechanical Code should be
met. The ventilation air requirements for the MasterTemp heater can be found on page 18. 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 ft) or less in
length do not require a condensate tee. The MasterTemp heater is suitable for through-the-wall venting.
After installation, installer must check for correct and safe operation of the heater.
P/N 475106 Rev. D 1/2016
All manuals and user guides at all-guides.com
)
ON PAGE 19
NOTE
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™
MASTERTEMP
Pool and Spa Heater Installation and User's Guide
Section 2. Installation
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