Construction - Honeywell L41.. Product Handbook

CONSTRUCTION

All aquastats have the following common parts
• Thermoplastic housing of mainly rectangular form. This
housing is the carrier of the Micro Switch mechanism, the
6.3 mm quick connect terminals, the lever mechanism and
the adjusting mechanism.
• Thermoplastic switch cover, which protects the switch
mechanism and which fits in the above mentioned housing.
• Auxiliary parts to make it possible to use the quick connect
terminals also for screw connection.
• External circular setting knob with scale and an index or
internal setting with scale.
• Liquid filled sensing element with or without a remote bulb.
This element is via a mounting plate connected to the rear
side of the thermoplastic housing
• Well assembly in which the bulb of the sensing elements
fits. For the dual direct mount aquastat and triple direct
mount aquastat the well is enable to contain two resp. three
bulbs.
NOTE: The surface mounted Aquastat does not have a
well, but the bulb is enveloped by a sensor
assembly of mainly rectangular form which is
mounted on the rear side of the thermoplastic
housing.
• A reset button for the switch mechanism, manual or tool
reset, with exception of the surface mounted Aquastat,
which does not have such a button.
Single direct mounted Aquastat needs the following extra parts
• A thermoplastic conduit box with a cable entry.
• A thermoplastic front cover to protect against touching of
live parts.
• A thermoplastic top cover for covering of units with internal
setting.
• An adjustable dial for the Micro Switch differential (if
applicable).
Dual direct mounted Aquastat needs the following extra parts
• Two single thermoplastic conduit boxes (a right and a left
one) with cable entry.
• A dual thermoplastic front cover to protect against touching
of live parts.
• A thermoplastic top cover for covering of units with internal
setting.
• An adjustable dial for the Micro Switch differential (if
applicable).
• A bracket on the rear side of the Aquastat to connect both
basic units together and which fits into a dual well.
Surface mounted Aquastat needs the following extra parts
• A thermoplastic conduit box with a cable entry
• A thermoplastic front cover to protect against touching of
live parts.
• A thermoplastic top cover with scale for covering of unit with
internal setting.
• A fastening strap with fastener, to mount the Aquastat on
the surface of boiler or pipe.
Triple direct mounted Aquastat needs the following extra parts
• Three single thermoplastic conduit boxes with a cable entry.
• A dual and a single thermoplastic front cover.
• Two thermoplastic top covers for covering of units with
internal setting.
• An adjustable dial for the Micro Switch differential (if
applicable).
• Two brackets on the rear side of the Aquastat to connect
the three basic units together and which fits into a triple
well.
17 EN2R-9005 0406R3-NE