Pentair MASTERTEMP User manual

Ultra-high performance in a compact,
quiet and eco-friendly design
MasterTemp®
High Performance Heater
By Pentair Pool Products®

No matter what your criteria
for top performance and value,
MasterTemp®meets them all
Fast, efficient, compact, quiet,
safe and eco-friendly
No matter what you’re seeking in your swimming pool
heater, MasterTemp®measures up. Compare this list of
features to any other and you’ll see why MasterTemp is
setting a new standard for total value.
4Very compact design for such a high performance heater
allows for smaller overall equipment pads that won’t
intrude on your poolscape.
4A fully pre-mixed system with a highly efficient air and gas
mixture lets MasterTemp heat up fast. No long waits
before enjoying your pool or spa.
4Compare energy efficiency ratings and you’ll find
MasterTemp at the top of the list. Comfort and economy
can go together.
4With a hot surface ignition (no pilot light) and pushbutton,
digital controls, MasterTemp is as easy to operate as your
home heating system. Plus, user-friendly indicator lights
make system operation and monitoring a snap.
4The easy-to-view, rotating digital display places controls
front and center, no matter how MasterTemp is
positioned on your equipment pad.
4MasterTemp is engineered for super-quiet operation
and won’t intrude on your poolside leisure time.
4A tough, rustproof composite exterior handles the heat
and weathers the elements.
4Eco-friendly, MasterTemp is certified for low NOx
emissions and outperforms industry standards.
4Safe operation is assured through a series of features,
including; a water pressure switch that senses the pump is
running to prevent overheating; high limit switches assure
the heater turns off if water temperature exceeds factory-
set limits; manual gas shut-off when service is required;
stack flue sensor also guards against overheating.
4Approved for installation on combustible surfaces.
Don’t be left out in the cold with heaters that
don’t measure up to today’s longer list of
must-have features. Insist on MasterTemp
and you’re insisting on better performance
and lifetime value.

Spa Volume (Gallons)
Model 200 300 400 500 600 700 800 900 1,000
MasterTemp’s easy-to-read
controls make system
operation and monitoring
simple. Pool and spa
temperatures can be
pre-set and controlled
with the push of a button.
A digital display indicates
the water temperature,
and five LED lights give
you system status and let
you know if the heater
needs service.
Easy to install or retrofit in even the tightest space — models
from 200M to 400M BTUs — all measure 21L x 21W x 28H
Rotating digital display means more installation options
and easier access to view operating information
Rustproof, tough composite exterior for long life
Available in natural gas and propane models.
Minutes for 30°FTemperature Rise (Heater Input in 1000 BTU/HR)
200 18.0 27.0 35.0 44.0 53.0 62.0 71.0 80.0 89.0
250/250HD 15.8 23.5 30.8 38.5 46.5 54.3 62.0 70.0 77.8
300 13.5 20.0 26.5 33.0 40.0 46.5 53.0 60.0 66.5
400/400HD 9.0 13.0 18.0 22.0 27.0 31.0 35.0 40.0 44.0
Pool Sizing*
Spa Sizing*
Note: The chart is based on a 30°F (55.6°C) temperature rise, discounting losses and only based on heat required to
raise temperature in minutes. Two-year limited warranty. See warranty for details.
°F
Temperature
Change/
24 Hrs.
Heater Size Heater Size
Model
200
Model
250/250HD
Model
300
Model
400/400HD
Model
200
Model
250/250HD
Model
300
Model
400/400HD
Pool Capacity in Gallons Pool Surface Area in Sq. Ft. at 5.5' Depth
5
10
15
20
25
30
35
40
97,383
48,691
32,461
24,346
19,477
16,230
13,912
12,173
121,729
60,864
40,576
30,433
24,346
20,288
17,390
15,216
146,075
73,037
48,692
36,519
29,216
24,345
20,868
18,260
194,766
97,383
64,922
48,691
38,953
32,461
27,824
24,346
2,364
1,182
788
591
473
394
338
295
2,955
1,478
985
739
591
493
423
369
3,546
1,773
1,182
887
710
591
507
443
4,727
2,364
1,576
1,182
945
788
675
591
*ASME models available. See your Pentair Water Pool and Spa representative for details.

pumps /filters /heaters /heat pumps /automation /lighting /cleaners / sanitizers /maintenance products
3/08 Part #P1-004 ©2008 Pentair Water Pool and Spa, Inc. All rights reserved.
Available from:
www.pentairpool.com
Phone: [phone]
Why
MasterTemp®heaters
are the "greenest" choice
Best-in-class energy efficiency
• High efficiency rating makes these heaters extremely
economical to operate. If your pool heater is more than
5 years old, chances are a MasterTemp could quickly pay
for itself in utility bill savings.
• Optimized fuel/air mix provides superior efficiency
and faster heat up.
Certified for low NOx emissions
• In fact, our heaters outperform current industry
standards for air pollution exhaust.
Super-quiet operation
Built to last longer
• Tough composite exterior won’t corrode;
stands up to both heat and weather.
An Eco Select™Choice
MasterTemp®high performance heaters offer best-in-class
energy efficiency. Plus, they are certified for low NOx emissions,
making them eco-friendly favorites. That's why MasterTemp is an
Eco Select choice.
The Eco Select brand identifies our “greenest” and most efficient
equipment choices. These products save energy, conserve water,
eliminate noise, or otherwise contribute to a more environmentally
responsible equipment system.
As the global leader in pool and spa equipment manufacturing, we
strive to provide greener choices to our customers. We hope you’ll
join us in embracing more eco-friendly poolscapes by choosing Eco
Select products for your swimming pool.