Pentair MiniMax 250 User Manual
Page 2
P/N 471593
Rev. C 11-1-01
2
Table of Contents
Introduction ...............................................................................................................
3
Important Notices ......................................................................................................................................................................
3
Code Requirements ...................................................................................................................................................................
3
Warranty Information .................................................................................................................................................................
4
Operation ....................................................................................................................
4
Safety Rules ..............................................................................................................................................................................
4
HSI (Hot-Surface Ignition) Lighting/Operation - Natural Gas .....................................................................................................
5
Installation Instructions—Specifications.................................................................
6
Installation — Electrical .............................................................................................................................................................
7
Installation — Remotes (2 and 3 Wire) ...................................................................................................................................... 8 - 9
Installation — Wiring Diagram ................................................................................................................................................... 10 - 12
Installation — Water Connections ..............................................................................................................................................
13
Installation — Plumbing .............................................................................................................................................................
13
Installation — Gas Line .............................................................................................................................................................
14
Pipe Sizing Chart/Gas Pressure Requirements .........................................................................................................................
14
Regulated Manifold Pressure Test .............................................................................................................................................
14
Venting — Indoor Installations ................................................................................................................................................... 15 - 18
Venting — Outdoor Installations ................................................................................................................................................
19
Basic Operation — General Description ....................................................................................................................................
20
Basic Operation — Safety Controls ........................................................................................................................................... 21 - 22
Basic Operation — HSI Ignition Module ....................................................................................................................................
22
Thermostat (Programming & Layout) ........................................................................................................................................
23
Temperature & Time Setting (Programming) ............................................................................................................................. 24 - 25
Maintenance ............................................................................................................................ 26
Maintenance Instructions ...........................................................................................................................................................
26
Pressure Relief Valve ................................................................................................................................................................
26
Maintenance (Water Treatment) ................................................................................................................................................
27
Trouble Shooting ....................................................................................................... 28
Normal Operation Sequence ..................................................................................................................................................... 28 - 29
Troubleshooting & Service ......................................................................................................................................................... 30 - 31
Troubleshooting (General) .........................................................................................................................................................
32
MiniMax NT Low NOx
Parts List & Exploded View (Single Voltage) .........................................
33-34
MiniMax NT Low NOx
Parts List & Exploded View (Dual Voltage) ............................................
35-36
Warranty Information .................................................................................................
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