Relays

Honeywell 120 volt, triple aquastat relay, with a 3" insulation depth and 3" insertion depth, which provides pump control for hydronic heating system. L8124 aquastat relays provide high limit, low limit, and circulator control for maintaining boiler temperatures. Explore More

Honeywell 120 volt, triple aquastat relay, with a 1-1/2" immersion depth, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More

Honeywell 24 volt, triple aquastat relay, with a 1-1/2" immersion depth, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More

Honeywell 120 volt, triple aquastat relay, with no well, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More

Honeywell 120 volt, triple aquastat relay, with a 1-1/2" immersion depth less well, which mounts horizontally on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More

Honeywell 120 volt, triple aquastat relay, with no well, which mounts horizontally on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More

Honeywell 120 volt, line voltage electric aquastat relay with a 140-240°F temperature range. This relay is an immersion type controller that combines high limit protection with switching relay control of the burner and circulator motor. Explore More

The Honeywell L8148E1299 is an Aquastat Relay, an immersion-type hydronic controller that combines high-limit protection with switching relay control of burner and circulator motors. The high-limit Aquastat Relay features a 120-volt AC power supply, an operating range of 180–240 degrees Fahrenheit, a 15 degrees Fahrenheit fixed differential temperature, and an insulation depth of 1-1/2 to 3 inches. It operates within 0–95 percent relative humidity and has a 4-1/2-inch capillary length. The relay includes a single-pole, single-throw (SPST) switch for high-limit and circulator control, is designed for vertical mounting, and comes with a 50-volt-amperes transformer and heat-conductive compound. Explore More

Honeywell 120 volt, SPST high limit, vertically-mounted aquastat relay with a 180-240°F temperature range (fixed 15°F differential) and a 4-1/2" capillary with well. This aquastat features a vent damper. Explore More

Honeywell millivolt or low voltage aquastat relay with a 120-240°F temperature range that can be mounted vertically or horizontally. This relay is an immersion type controller that combines high limit protection with switching relay control of the burner and circulator motor. Explore More

Honeywell vertically mounted triple aquastat relay that features high limit protection, low limit and circulation control, a 10°F fixed high limit differential, a 10-25°F low limit differential, a 130-240°F high limit operating range, a 110-220°F low limit operating range, and a 0-95% RH operating humidity range. This relay has a 3" insertion well and 1-1/2" insulation. Explore More