
44
P/N 470880
Rev. K 5-31-06
Introduction
LOW NO
X
™
COMMERCIAL
POOL HEATER
Sizes 525, 750 and 900
Read these instructions carefully before putting the heater into operation. The installation must conform with local
codes or in the absence of local code, with the latest national fuel GAS Code, ANSI Z223.1. Installation in Canada to
be made in accordance with the latest CAN/CGA-B149.1 or .2 and CSA C22.1 Canadian Electric Code, part 1.
The Pentair Water Pool and Spa Low NOx pool heater construction is the same as our regular commercial pool
heater except for the burner tray. The burner tray is modified to meet the South Coast Air Quality Management
District (SCAQMD) rule 1146.2, Ventura County of California rule 74.11.L, and the Texas Natural Resource
Conservation Commission (TNRCC) rule 117.465.
The MiniMax Commerical Low NOx pool heaters are design certified by CSA (Canadian Standard Assocation) as
complying with the latest edition of ANSI (American National Standard Insititute) Z21.56.CSA 4.7-M98 in the
USA and Canada for both indoor and out installations.
WARNING
OPERATING THIS HEATER CONTINUOUSLY AT WATER TEMPERATURE BELOW 68° F. WILL CAUSE
HARMFUL CONDENSATION AND WILL DESTROY THE HEATER AND WILL VOID THE WARRANTY.
A-20