Pentair MASTERTEMP 125 Installation And User Manual

Rev. B 8/14 MASTERTEMP
®
125 Pool and Spa Heater Installation and User’s Guide
21
Section 3. Installation Instructions
6" Minimum
Clearance to
Combustible
Materials
Listed
Termination
Cap
Storm Collar
Flashing
Firestop
Vent
Body
Metal Flue
Collar
Class B Double Wall
Metal Vent Pipe
Min. 10 Ft.
Support Vertical
Vent Pipe so
adapter does not
take weight of
pipe.
Figure 14. – Typical Metal Vent Pipe Installation
Canada (Vertical – Negative Pressure)
Figure 13. – Typical Metal Vent Pipe Installation - U.S.
(Vertical – Negative Pressure)
NOTE
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 12 feet and each 45-degree elbow
in the vent run reduces the maximum vent run by 6 feet. See Table 5 on page 20 for the maximum vent
lengths using 90-degree and 45-degree elbows.
6" (15 cm) Minimum
Clearance to Combustible
Materials
Approved
Ter mination
Cap
Storm Collar
Flashing
Firestop
Vent
Body
Metal Flue
Collar
Double Wall
Metal Vent Pipe
Min. 10 Ft. (3.3 M)
Support Vertical
Vent Pipe so
adapter does not
take weight of
pipe. Dispose
of condensate
according to
local codes.
Double Wall
Metal Vent Te e
Condensate
Drain w/trap
Min. 2 Ft.
(.7 M)
WARNING
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Risk of fire or asphyxiation if vent is not assembled
according to manufacturer’s instructions or
if vent parts from different manufacturers are
mixed. Vent parts from different manufacturers
ARE NOT interchangeable. Mixing parts from
more than one manufacturer may cause leaks or
damage to vent. When assembling a vent, pick one
manufacturer and be sure that all vent parts come
from that manufacturer and are specified by the
manufacturer for your system. Follow manufacturer’s
instructions, local code requirements, National
Fuel Gas Code requirements (U.S.) or standards
CSA B149.1 and B149.2 (Canada) carefully during
assembly and installation.

Pentair MASTERTEMP 125 Specifications

General

BTU Output	125, 000 BTU/hr
Fuel Type	Natural Gas or Propane
Ignition System	Electronic
Minimum Flow Rate	20 GPM
Maximum Working Pressure	50 PSI
Efficiency	82%
Water Connections	1.5 inch
Certifications	ANSI Z21.56
Voltage	120V