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Swimming Pool Heater
Pentair
300, 250
installation manual
Rev. C
Models:
300
250
1
37
40
40
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40 pages
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Troubleshooting
Specs
Install
Wire Remote
Warranty
Maintenance
Time Setting
Safety
Service CHECKS-IGNITION Module
Page 37
Image 37
37
NOTES
Rev. C
11-1-01
P/N 471593
Page 36
Page 38
Page 37
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Page 38
Contents
For additional free copies of this manual call 800
MiniMax NT Low NOx Series
Table of Contents
Code Requirements
MiniMax NT Low NOx
Safety Rules
Warranty Information
Operation
Operation Lighting
For Your Safety Read Before Lighting
Specifications
Installation Instructions
ELECTRICAL, ALL HSI Units
Installation Electrical
Wire Remote
TWO-WIRE or THREE-WIRE Remote HOOK-UP
Installation Remotes
Three-wire remote
Wiring
Installation Single Voltage
Voltage
Installation Single
MiniMax NTLow
Code or Superceding Local Wiring Codes
Plumbing
Water Connections
Plumbing Connections
GAS Connections
Indoor VENTING-General Requirements
Installation Indoor
See page 17 for Indoor Vent Adaptors
Indoor Vent Adaptors Fits ALL Models
Indoor
Installation
Ventilation
Installation Outdoor
Basic System Operation
General Description
Basic Operation
AIR Pressure FAN Switch
Safety Controls
Water Pressure Switch
Typical Water Pressure Switch
Operation of Ignition Module
General
Pentair Temperature Controller 7800 Layout
Basic Thermostat Operation
Normal Operation no Remote
Time Setting
To Change the Factory Temperature Settings
Temperature & Time Setting Programming
Time Setting Programming
Time SETTING, cont’d
Maintenance
Maintenance Instructions
Energy Saving Tips
Spring and Fall Operation
Chemical Balance
Maintenance Water Treatment
Pool and SPA Water
If pH becomes too high over alkaline, it has these effects
Normal Operation Sequence
Troubleshooting-Normal Operation Sequence of Heater
Power Service Current Temp SET TEMP/TIME
Troubleshooting-Normal Operation of Heater
Troubleshooting & Service
Service Checks
Service CHECKS-IGNITION Module
Flame Sensor Current Check
Heater Short Cycling Rapid On and Off Operation
Troubleshooting General
Minimax NT LOW NOx Heater Single Voltage
Description QTY
Minimax NT LOW NOx Heater Dual Voltage
MiniMax NT Low NOx Dual Voltage Replacement parts
Rev. C
Rev. C
Rev. C
MiniMax NT Low NOx Heaters Limited Warranty
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