ORDERING INFORMATION
When ordering specify
•Setting point(control and limit if necessary)
•Type of contact (SPDT/SPST/ electrical rating)
•Number of sensing point (single/dual)
•Type of mounting (direct immersion/panel/surface)
•Differential (adjustable/fixed/manual reset)
•Capillary length
Ordering Specification number
L 4 1 X X A 9999
L: Aquastat
Control contact: 4: SPST
6: SPDT
1: Family
88:Single aquastat, direct immersion
89:Single aquastat, panel mounting
90:Single aquastat, surface mounting
91:Dual aquastat, direct mounting
92:Triple aquastat, direct mounting
Specification number
A:Single: knob setting
Dual: automatic reset limiter
B:Single: internal setting (screw)
Dual: manual reset limiter
C:Single: manual reset
Fig. 11. Model number chart
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