Aquastat is designed to thermostatically turn any B&G NBF circulator
ON and OFF. The AQ-1/2 or AQ-3/4 will switch the pump OFF at 120ºF (48.9ºC) and ON at
100ºF (37.8ºC). The aquastats are available in separate models that will sense the
temperature for either 1/2” or 3/4” copper pipe.
AQS-1/2, AQS-3/4 AQUASTATS
Thermostatic Switch Modes: OFF (open) at 120°F (48.9°C) water
temperature and ON (closed) at 100°F (37.8°C) water temperature.
Thermostatic Element: Bimetal, senses surface temperature of outside
diameter of pipe.
Pipe Size: AQS-1/2 clips onto 1/2" copper pipe or 3/8" steel
pipe (OD of pipe 5/8"). AQS-3/4 clips onto 3/4" copper pipe or 1/2" steel
pipe (OD of pipe 7/8").
Mounting: May be installed to sense temperature at the suction or
discharge pipe of the pump.
CONSTRUCTION MATERIALS
Thermostat Covering: Epoxy (Environmentally Sealed)
Pipe Clip: Stainless Steel
Sensing Element: Bimetal
Wire Leads: Insulated 18" (457mm) #18 AWG
· UL approved.
· Connects to the lead wires in the connection box of any Bell &
Gossett NBF/NRF/SSF
circulator.
· Suitable for 115/120V, 60 HZ operation.
· Provides thermostat control to the circulator. It will turn OFF
(open) at 120ºF (48.9ºC) water temperature and ON (closed) at 100ºF (37.8ºC) water
temperature.
AUTOMATIC
TIMER KIT and AQUASTAT COMBINATION - The automatic timer and aquastat kits can be
used in combination. When they are used together, the pump will only circulate water when
the ON time conditions are met and when water temperature is low enough to cause the
aquastat to switch ON.
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