Taco switching relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching or the advanced features of the -ExP controls, the job is made easy. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. All switching relays are UL listed, are compatible with conventional and programmable thermostats.

• External indicator lights
• Plug-In power port cards
• Switchable priority
• Simplified wiring
• Fully enclosed snap-out relays
• Compact design
• Fuse protected
• 100% factory tested
• Isolated end switch
• Contractor friendly PC board layout
• Universal thermostat compatibility
• All circulator relay connections, including ZC/ZR, are rated 1/3 HP (6 amp full load, 36 amp locked rotor) at 120 VAC
• End switch connections are rated 24 VAC, 1 amp
• All thermostat connections supply a 24 VAC class 2 output

,

Taco SR506-EXP-4

,

SR506-EXP-4

Taco ZA024Q4A2 Actuator Head Zone Sentry Valves 24 VAC,

Taco ZA024Q4A2

,

ZA024Q4A2

Taco air scoop's special design and internal baffles of Taco air scoops slow water velocity to separate the air from solution. Thanks to this design, Taco air scoops efficiently remove air to provide noiseless, air-free hydronic heating, cooling or combination systems. They also provide an economic way to integrate air elimination by the connection of either a plain steel or diaphragm expansion tank.

• 1-piece cast iron construction
• Never requires any servicing
• Engineered baffle separates air from water
• Each air scoop has a vent connection on top for the installation of a 1/8" Taco 400-3 or 416-1 Hy-Vent and 1/2" bottom tapping for a diaphragm expansion tank
• The 1-1/2 - 4" air scoops also have an additional top tapping for the connection of a plain steel expansion tank
• Water or water/glycol media

,

Taco B153-14

,

B153-14

Taco air scoop's special design and internal baffles of Taco air scoops slow water velocity to separate the air from solution. Thanks to this design, Taco air scoops efficiently remove air to provide noiseless, air-free hydronic heating, cooling or combination systems. They also provide an economic way to integrate air elimination by the connection of either a plain steel or diaphragm expansion tank.

• 1-piece cast iron construction
• Never requires any servicing
• Engineered baffle separates air from water
• Each air scoop has a vent connection on top for the installation of a 1/8" Taco 400-3 or 416-1 Hy-Vent and 1/2" bottom tapping for a diaphragm expansion tank
• The 1-1/2 - 4" air scoops also have an additional top tapping for the connection of a plain steel expansion tank
• Water or water/glycol media

,

434-5

Taco 49MD-125T-2 Air Separator 1-1/4" Threaded

49MD-125T-2

Taco 49-125P Air Separator 1-1/4" Press (Brass)

49-125P

Taco 49-100P Air Separator 1" Press

49-100P

Taco 416-2 Slim Line Air Vent, 1/8", MNPT, 150 psi, 140 - 240 deg F, Brass

• Vents are easily serviceable, if needed, by simply unscrewing the vent cap
• 115 psi maximum discharge pressure
• Non adjustable, straight mount, bubble breaker, float style

,

Taco 416-1V

,

416-1V

Taco Air Vent B157-5 1/8" MPT (Float Type),

Taco B157-5

,

Warwick Hanger B157-5

Taco 418-4 Air Vent 3/4" MPT X 1/2 FPT
,

418-4

,

418-4

Taco 418 Air Vent 3/4" MPT X 1/2 FPT
,

Taco 418

,

418

Taco 49-150C-2 Automatic Air Separator, 1-1/2", Sweat, 150 psig, 25 - 240 deg F, 49 Cv, 5 fps Maximum, 42 kilo-VAC, Brass, 5-7/16" W x 7-9/16" H

• 42 kilo-VAC rating
• Removes unwanted air from closed loop heating and cooling systems to help increase efficiency and eliminate noise
• Water or water/glycol media
• Features bi-directional flow, patented pall ring design
• Minimal pressure loss, vent can be closed
• Large surface contact area, protective vent plate
• Rugged dependability, maximum air removal
• Convenient expansion tank connection tapping, bi-directional flow
• Stainless steel pall rings
• Stainless steel, EPDM, viTon, brass and engineered plastics venting unit components

,

49-150C-2

,

49-150C-2