Exploded parts diagrams: This part is shown as item #8 on the Pentair Minimax 150 – 400 Heaters (Mfg 1991-1997); item #28 on the Pentair Minimax Plus 150 – 400 Heaters; item #28 on the Pentair PowerMax 150 – 400 Model Heaters exploded parts diagrams.
🔧 Pentair Minimax 150 – 400 Heaters (Mfg 1991-1997) – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Wire Kit, Pentair Minimax/Minimax Plus, Millivolt |
| – | Pilot, Pentair Minimax/Minimax Plus/PowerMax/Tropic Isle, LP |
| – | Wire Harness, Pentair Minimax 150-400, Reversible |
| – | Orifice, Pentair Minimax/MMX Plus/PowerMax, LP |
| – | Orifice, Pentair Minimax/MMX Plus/PowerMax, Nat. |
| – | Pilot, Pentair Minimax/Minimax Plus, LP, Millivolt |
| – | Pilot, Pentair Minimax/Minimax Plus, Nat., Millivolt |
| – | Thermostat, Pentair Purex MiniMax 150, Electronic, 24v |
| – | Orifice 32, Pentair Minimax/Tropic Isle 120-400, Nat., 4k-6k |
| – | Orifice 31, Pentair Minimax/Tropic Isle 120-400, Nat., 2k-4k |
| – | Orifice, Pentair Minimax NT/Tropic Isle 120-400, LP, 4k-6k |
| – | Orifice, Pentair Minimax NT/Tropic Isle 120-400, LP, 2k-4k |
| – | Pilot Generator, Pentair Minimax/Minimax Plus/PowerMax/TI |
| – | Pilot,Pentair Minimax/Minimax Plus/PowerMax/Tropic Isle,Nat. |
| – | 47-110-1396 |
| – | Orifice, Pentair Minimax, LP |
| 45 | Burner Tube, Pentair Purex Minimax Plus/PowerMax/Minimax |
| 43 | 46-110-W003K43 |
| 42 | 46-110-W003K42 |
| 33 | Electrode Assembly, Pentair Minimax |
| 32 | Thermostat Kit, Pentair Minimax 150-400 |
| 31 | Piezo Igniter Assembly, Pentair Minimax/Minimax Plus |
| 29 | Thermal Cutoff, Pentair Minimax/Minimax Plus/PowerMax |
| 28 | Potentiometer, Pentair Minimax/Minimax Plus/PowerMax |
| 27 | Pressure Switch 3902, 1A, Tecmark, Universal, SPNO, w/Brass |
| 26 | Rocker Switch, Pentair/Purex Tropic Isle 120-400, DPDT |
| 25 | Knob, Pentair Minimax/Tropic Isle |
| 24 | Light Indicator Board, Pentair Minimax/Minimax Plus |
| 23a | 46-110-W003K23A |
| 23 | 46-110-W003K23 |
| 22 | Sensor, Temperature, Pentair Minimax, IID |
| 21a | 47-110-1342 |
| 21a | 46-110-W003D21A |
| 21 | Transformer, Pentair, Minimax/PowerMax, 115v/230v, 24v |
| 20 | Element Flow Valve, Pentair Minimax/Minimax Plus/PowerMax |
| 16 | Drain Valve, Pentair Minimax/Minimax Plus/PowerMax, 3/4" |
| 15 | 46-110-W003K15 |
| 14 | Main Header, Pentair Minimax/Minimax Plus/PowerMax |
| 13 | Hi-Limit, Pentair Minimax/Minimax Plus/PowerMax/Tropic Isle |
| 12 | 46-110-W003K12 |
| 11 | Sleeve, Pentair Minimax/Tropic Isle 120-400 |
| 10a | Flange, Pentair Minimax |
| 10 | 46-110-W003K10 |
| 9 | 47-110-1314 |
| 8 | Gasket, Pentair Minimax/PowerMax, Flow Valve, 2"ID, Spl OD ◀ this part |
| 7 | Flow Valve Assembly, Pentair Minimax/Minimax Plus/PowerMax |
| 6 | Gasket, Pent Minimax/PowerMax/TI,Tube Bundle,3/4"ID,1-1/8"OD |
| 4 | Bolt, Pentair Minimax/Minimax Plus/PowerMax,3/8"-16 x 1-1/2" |
| 3 | Bolt, Pentair Minimax/Minimax Plus/PowerMax, 3/8"-16 x 2" |
| 2 | Washer, Pentair Minimax/Minimax Plus/PowerMax, 3/8" x 1" |
| 1 | Return Header, Pentair Minimax/Minimax Plus/PowerMax |
















