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Call 1-
800-347-9575
for Technical Support
3. Insert the aquastat probe into the thermal well until it bottoms out.
4. Install the control over the thermal well. Using the clamp provided on the bottom of the
control, secure the control to the well. The screws to tighten the clamp are located
inside of the control, on either side of the probe opening.
5. Make sure that the control is set to 230°F.
Do not increase the setting.
6. Install the cover to the control.
4.2.4 Vessel Wire Box installation.
1. Mount the wire box to the upper-right front panel (panel #4) using the sheet metal
screws provided. Refer to figures for location of box.
2. Secure the conduit to the vessel panels using clamps and sheet metal screws provided.
Fill High-Limit Controller Well
with Thermal Conductive
Grease before inserting probe.
EL-200B
EL-375B
(EL-500B is
similar)
Boilers complete with Controls