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Swimming Pool Heater
Pentair
300, 250
installation manual
Rev. C
Models:
300
250
1
39
40
40
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40 pages
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Troubleshooting
Specification
Install
Wire Remote
Warranty
Maintenance
Time Setting
Safety
Service CHECKS-IGNITION Module
Page 39
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39
NOTES
Rev. C
11-1-01
P/N 471593
Page 38
Page 40
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Contents
For additional free copies of this manual call 800
MiniMax NT Low NOx Series
Table of Contents
Code Requirements
MiniMax NT Low NOx
Warranty Information
Safety Rules
Operation
Operation Lighting
For Your Safety Read Before Lighting
Specifications
Installation Instructions
ELECTRICAL, ALL HSI Units
Installation Electrical
TWO-WIRE or THREE-WIRE Remote HOOK-UP
Wire Remote
Installation Remotes
Three-wire remote
Wiring
Installation Single Voltage
Voltage
Installation Single
MiniMax NTLow
Code or Superceding Local Wiring Codes
Water Connections
Plumbing
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
General Description
Basic System Operation
Basic Operation
Typical Water Pressure Switch
Safety Controls
AIR Pressure FAN Switch
Water Pressure Switch
Operation of Ignition Module
Normal Operation no Remote
Pentair Temperature Controller 7800 Layout
General
Basic Thermostat Operation
To Change the Factory Temperature Settings
Time Setting
Temperature & Time Setting Programming
Time Setting Programming
Time SETTING, cont’d
Spring and Fall Operation
Maintenance Instructions
Maintenance
Energy Saving Tips
If pH becomes too high over alkaline, it has these effects
Maintenance Water Treatment
Chemical Balance
Pool and SPA Water
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-IGNITION Module
Service Checks
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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