OVERVIEW/SELECTION GUIDE
Application | Single Aquastat thermostats | Dual Aquastat thermostats | ||
| Controller or limiter thermostat | Controller and limiter thermostat with standard | ||
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| sensing element |
Direct mount (immersion) |
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| L4188A, B, C | L6188A, B, C | L4191A, B and L6191A, B | |
| 25 ... 95°C | 25 | ... 95°C | 25 ... 95°C |
| 40 ... 110°C | 40 | ... 110°C | 50 ... 95°C |
| 70 ... 140°C | 70 | ... 140°C | 40 ... 110°C |
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| 70 ... 140°C |
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Panel mount (immersion) |
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| L4189A, B, C 25 ... | L6189A, B, C |
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| 95°C 40 ... 110°C | 25 | ... 95°C |
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| 110 ... 230°F | 40 | ... 110°C |
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| 70 | ... 140°C |
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| 110 ... 230°F |
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Surface mount |
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(with mounting strap) |
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| L6190A, B, C |
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| 25 ... 95°C |
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Replacement aquastat (immersion) |
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| L6188A 2044 |
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| 40 ... 110°C |
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4 |
