Hello All,
The system I am installing has three temperature space heating requirements plus DHW priority zone. Of these temperature requirements, there are multiple zones in each.
My plan is to use manifolds with 4-wire actuators tied to thermostats. Additionally, the thermostat signal needs to go to a controller to call for heat and run associated circulator and mixing valve.
Lochinvar offers an (expensive) controller that does three temperature zones. I have included some information in the uploads.
I have also included my schematic.
1. Is it a sound plan to divide the zone manifolds by temperature, include one circulator and zone valve per zone, and have the individual actuators in the manifold open the zones that are calling by thermostat? It seems expensive enough with the three mixing valves and the three zone circulators and the three manifolds, and perhaps it is over designed? At least I won't need to buy a separate taco controller for this setup.
2. One specific question I have is if the signal from the thermostat is able to be split the signal to go to actuator valves and to signal the Lochinvar controller?
3. Regarding thermostats, I would not require a floor sensor for the radiant with this arrangement, because the supply temp is already limited?
4. Also, the boiler itself has an outside sensor. The boiler will attempt to predict supply temperature already for the cast iron baseboard, maintaining a condensing temp to maximize efficiency. Should I even use a mixing valve (to dictate a specific supply temp) for this group of zones?
Shawn
The system I am installing has three temperature space heating requirements plus DHW priority zone. Of these temperature requirements, there are multiple zones in each.
My plan is to use manifolds with 4-wire actuators tied to thermostats. Additionally, the thermostat signal needs to go to a controller to call for heat and run associated circulator and mixing valve.
Lochinvar offers an (expensive) controller that does three temperature zones. I have included some information in the uploads.
I have also included my schematic.
1. Is it a sound plan to divide the zone manifolds by temperature, include one circulator and zone valve per zone, and have the individual actuators in the manifold open the zones that are calling by thermostat? It seems expensive enough with the three mixing valves and the three zone circulators and the three manifolds, and perhaps it is over designed? At least I won't need to buy a separate taco controller for this setup.
2. One specific question I have is if the signal from the thermostat is able to be split the signal to go to actuator valves and to signal the Lochinvar controller?
3. Regarding thermostats, I would not require a floor sensor for the radiant with this arrangement, because the supply temp is already limited?
4. Also, the boiler itself has an outside sensor. The boiler will attempt to predict supply temperature already for the cast iron baseboard, maintaining a condensing temp to maximize efficiency. Should I even use a mixing valve (to dictate a specific supply temp) for this group of zones?
Shawn