Outstanding Performance:
This damper was specifically designed with R8 insulation specification in mind to contribute to energy savings and help the system pass efficiency audits. Best of all, it helps eliminate hot and cold spots, the biggest cause of callbacks. The improved internal design creates a slower return that ensures a quiet operation.
Installation Made Easy
For fast, accurate installation with no callbacks, the TrueZONE Damper has you covered with a range of features that simplify installation in most applications:

Adjustable Range Stops  Easy to understand and set by utilizing a pushin lever. Theyre used to bleed air into the zones which helps lower pressure and reduce noise.

Push-In Terminals  The same easy wiring design used on TrueZONE Panels. No tools needed, has space for two wires.

Taping Flange  Lets you position insulation under it before sealing with foil tape.

Mechanical Position Indicator  Easy viewing through a clear window.

LED Indicator Lights  Red indicates the damper is closed and green indicates open (used in 3-wire applications)

Honeywell ZD12X12TZ

Watts Regulator series 335 ASME rated boiler pressure relief valves were developed to fill the OEM need of the hydronic industry for a smaller valve on popular size boilers up to 510000 BTU at 30 psi. The compact design, all bronze construction and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME section IV at 30 psi set point.,
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Watts Water 0342691

M335-M2 Bronze 2-Port Pressure Safety Relief Valve, 3/4", MNPT x FNPT, 30 psi Watts Regulator series 335 ASME rated boiler pressure relief valves were developed to fill the OEM need of the hydronic industry for a smaller valve on popular size boilers up to 510000 BTU at 30 psi. The compact design, all bronze construction and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME section IV at 30 psi set point.
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Watts Water 0342692

Field Controls 00963801 Silver Barometric Draft Control for Residential Oil, Wood and Coal, 6"

• M control lends itself ideally to conditions requiring a great deal of stability and accuracy
• Designed for settings from 0.01 - 0.1"
• Type M features an infinitely variable screw adjustment, permitting an extremely fine instrument setting
• M employs side wings to control air direction with gate curvatures designed to compensate for differences in horizontal and vertical settings

Sid Harvey Item #:100: Replaces Part #:'s : 29218

Field Controls 100

Tjernlund 100-12 Barometric Draft Damper Gas 7"-8",
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Tjernlund 100-12

Bell & Gossett 112113 EASB-1-1/4 JR Enhanced Air Separator, 1-1/4", NPT, 150 psi, 250 deg F, Brass, 4-5/8" W x 7-1/2" H

• Automatically removes entrained air bubbles in hydronic system
• Stainless steel coalescing medium, non ferrous venting mechanism

Sid Harvey Item #:112113: Replaces Part #:'s : 3675,
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Bell & Gossett 112113

White Rodgers Cooling Controls 50M56X-843 Universal Single Stage HSI Integrated Furnace Control For PSC & ECMx Blower Motor

White Rodgers 50M56X-843

White Rodgers Cooling Controls 50D50U-843 Universal Intermittent Pilot All Spark 24V Ignition Module

White Rodgers 50D50U-843

Diversified Heat Transfer 68W-5 Residential Tankless Coil for Weil-McLainSid Harvey Item #:B42-3: Replaces Part #:'s : WE624,

Diversified Heat Transfer B42-3

Taco flo-cheks have dependably stopped gravity circulation in forced hot water heating systems for over 40 years. Flo-cheks open automatically when the circulator starts running. They feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration.

• Flo-cheks allow heat to flow only into the zones that are calling for heat
• Thumb screw can be manually opened for gravity feed applications if the main circulator stops operating
• Taco flo-cheks open automatically when the circulator starts running

Sid Harvey Item #:B146-19: Replaces Part #:'s : 21426,

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Taco B146-19

Taco flo-cheks have dependably stopped gravity circulation in forced hot water heating systems for over 40 years. Flo-cheks open automatically when the circulator starts running. They feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration.

• Flo-cheks allow heat to flow only into the zones that are calling for heat
• Thumb screw can be manually opened for gravity feed applications if the main circulator stops operating
• Taco flo-cheks open automatically when the circulator starts running

Sid Harvey Item #:B146-20: Replaces Part #:'s : HYD160-B146-20 | 4030 |,
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Taco B146-20

Taco Flo-Checks prevent gravity circulation in forced hot water heating systems during periods when the boiler is hot, but the space heating zone is not wanted. This makes it possible to use the heating boiler to maintain domestic hot water year-round. You can also use Flo-Checks in systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat. In addition, the thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating.

• In systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat
• Feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration
• The thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating
• Open automatically when the circulator starts running, when the room thermostat is satisfied and the circulator is stopped, the flo-checks close immediately, preventing gravity circulation
• Water or glycol media

Sid Harvey Item #:B146-21: Replaces Part #:'s : 4031,
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Taco B146-21