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Thermal Actuator, Two-Wire
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MANUALS (1)
Product Highlights
Description
A3030522 Two-Wire Thermal Actuator For EP Heating Manifold
A3030523 2-Wire Thermal Actuator for TruFLOW Classic & Jr. Manifolds
A3030524 Two-Wire Thermal Actuator For Stainless-Steel Manifold
Slow-opening thermal actuator (24VAC) mounts directly onto TruFLOW Valved Manifolds. It provides individual loop flow control on a multi-zoned manifold (manifold serving more than one zone). Thermal Actuator includes end switch for activation of relay (pump), heat plant or other auxiliary devices.
Specs
| Application: | Zoning |
|---|---|
| Voltage: | 24V |
| Type: | Thermal |
| Wiring: | Two-Wire |
| Used With: | TruFLOW Manifolds |
Questions?
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Product Q&A
5 QuestionsQ: I have a Rifeng manifold - would these actuators work well with the manifold. I would like to use them because the zone controller is Uponor. Thanks!
Asked by Bjorn 14 years ago
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Verified Reply- PexSupply StaffOnly the two-wire MA-ACT and the four-wire MP700 actuators are compatible with Rifeng manifolds.
Q: Can you tell me how many of these can be operated off of one output from a A3030003 3 zone controller? I need to operate as many as 4 loops off of 1 thermostat. I am concerned about the load on the zone controller required to do so and I haven't been able to find any ratings for the A3030003 or this actuator. Thanks.
Asked by 16 years ago
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Verified Reply- PexSupply StaffThe actuator (A3020416) will use 5 VA each. For the control part of your question, here is the spec sheet: http://s3.pexsupply.com/manuals/1290099706466/41792_PROD_FILE.pdf The amount of actuators will change based on the fuse and transformer size.
I operate 4 zones from one thermostat. Also operate two, two zones and one three zone from the same controller box. My system has a total of four thermostats.
Q: 2 wire vrs 4 wire - what's teh real difference?
Asked by RJ - DIY 16 years ago
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Verified Reply- PexSupply StaffThe two wire units were popular before the four wire units came out. They are wired directly to the thermostat. The four wire is the most commonly used now and has 2 wires for power and 2 wires to connect to the thermostat and an end switch.
Q: Does this actuator (A3020416) require a separate adaptor to mount to a TruFLOW Jr. Manifold? I realize the description says it mounts directly, but the reason I ask is that the my actuators (all of which are mounted directly to the manifold) do not seem to fit properly. The size and thread pitch of the plastic mounting ring is the correct, but if it is threaded completely down until it is snug against the manifold the actuator will not snap into place. The valve stem height (in the closed postion) looks to be approximately 6mm too tall. In order to get the actuator mounted, I have to back-off the mounting ring off until there is only a little more than one thread engaged. Even then, there is a lot of tension on the snap-on connection. I have had a reoccurring problem with these actuators popping off the manifold because they are so tight. The contractor who installed the system thinks that this is the way they are supposed to be mounted. It just does not seem right to me.
Asked by 16 years ago
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Verified Reply- PexSupply StaffNo, the SKU: A3020416 actuator mounts directly onto the manifold and does not require separate adapters to mount. From the problem you are describing it sounds like you are missing the brass adapters that would have came with the TruFLOW Jr. Manifold (SKU: A2630028). These adapters are going to allow you to thread right onto the manifold without any of the actuators "popping" off.
Q: Do these work with A3601012 C-55 Uponor Base unit? Uponor catalog suggests the use of A3030523.
Asked by Craig 16 years ago
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Verified Reply- PexSupply StaffThis unit does not state it is compatible with the Climate Control zoning base, so it should not be used with that product. It is only listed as compatible with the TruFLOW manifolds.