Pentair MASTERTEMP 125 Installation And User Manual

Rev. B 8/14 MASTERTEMP
®
125 Pool and Spa Heater Installation and User’s Guide
19
Corrosive Vapors and Possible Causes
Section 3. Installation Instructions
Table 5.
Area Likely Contaminants
Chlorinated swimming
pools and spas
Pool or spa cleaning chemicals. Acids,
such as hydrochloric or muriatic acid.
New construction and
remodeling areas
Glues and cements, construction
adhesives, paints, varnishes, and
paint and varnish strippers. Waxes and
cleaners containing calcium or sodium
chloride.
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NOTE
Each 90-degree elbow reduces the maximum horizontal PVC air intake duct run by 12 feet and each
45-degree elbow in the PVC air intake duct run reduces the maximum run by 6 feet. See the Table 5 above
for the maximum lengths using 90-degree elbows.
CAUTION
Chemicals should not be stored near the
heater installation. Combustion air can
be contaminated by corrosive chemical
fumes which can void the warranty.
Combustion 3 in. PVC Pipe
Inlet Air Intake Duct Requirements*
Combustion Air Intake 3 in. Pipe
(Vertical or Horizontal)
No. of 90° Elbows Maximum Length in Feet (M)
0 70 ft. (21.3 M)
1 58 ft. (17.7 M)
2 46 ft. (14.0 M)
3 34 ft. (10.4 M)
4 22 ft. ( 6.7 M)
WARNING!
DO NOT USE PVC PIPE FOR FLUE
EXHAUST VENT. FLUE EXHAUST
VENT TEMPERATURES CAN BE IN
EXCESS OF 400° F. FLUE EXHAUST
VENT MUST BE CATEGORY I or
CATEGORY III METAL VENT.
Table 4.
Note (*): Combustion Air Intake Duct Connection Kit (Call 1.800.831.7133 for part number) for all MasterTemp
®
125
Heater models can be purchased separately. See page 52 for parts list.
Figure 11.

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