Related Manuals for Build Equinox CERV2 Zone
Summary of Contents for Build Equinox CERV2 Zone
- Page 1 CERV2 Zone Option Manual Build Equinox support@buildequinox.com (773)-492-1893 Rev 1.3 - 11/03/2020 © Build Equinox 2020...
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Page 2: Zone Damper Wiring
Zone Damper Wiring There are two ways to physically control the Zone Damper motors – With the CERV’s integrated X0 Auxiliary Output, or with the optional IO Expansion Board. Both options require 3 conductor wire capable of carrying 24VAC at 0.5A (thermostat wire is acceptable). - Page 3 IO Expansion Board, X1-X6 Auxiliary Outputs In addition to the integrated X0 Auxiliary output, the I/O Expansion Board is capable of directly outputting 24VAC through its terminals without requiring connection to an external 24VAC source. NOTE: for this configuration, you must move the slide- switch above the terminal block towards the 24VAC OUTPUT label.
- Page 4 Touchscreen Zone Configuration The first step in setting up your zone damper system is to define Zone areas. The following examples describe how to access the Zone Configuration screen, as well as how to create a new zone, rename a zone, and delete a zone. When a new zone is created, the first selection gives you the option of choosing whether the zone is an Exhaust Zone, Supply Zone, or Active Close zone.
- Page 5 For examples of each zone type, please see the Appendix at the end of this document. Note: when deleting a zone, any auxiliary inputs or wireless devices linked to this zone will revert to controlling the CERV as a whole (i.e. triggering a ventilation switch would ventilate the whole home instead of the previous zone). Any auxiliary outputs configured as Zone Dampers linked to this zone will be unset.
- Page 6 The next step after creating the Zone, is to set up an auxiliary output which will be connected to a zone damper.
- Page 7 After an auxiliary output has been set to actuate a damper motor, you may configure inputs to trigger one of your configured zones. The steps below walk through setup of wired auxiliary inputs (I0, or I1-I3 on the IO Expansion Board), as well as wireless options such as the wireless ventilation switch or active circuit transmitter.
- Page 11 Appendix: Front Panel Removal and Auxiliary Input/Output (X0 and I0) Access These instructions show how to access the internal input/output connections in the CERV2. Before removing any access covers, power to the CERV2 should be turned off and the unit either unplugged or the electric breaker switched off.
- Page 12 Once the lower front cover is off, the four screws for the lower access panel can be removed. Screw locations are shown below. With the screws removed, the panel will be free to come out. Note: If using the I/O Expansion Board, the module will be accessible on this panel.
- Page 13 Appendix: Zone Configuration Examples In the Active Close Zone configuration, a single damper may be used to separate two or more return areas. In this scenario, the active close zone damper is installed in the return line of the bathroom, so that when the zone is “activated” (i.e. paired wireless ventilation switch is pressed) the bathroom return airflow is reduced, and the kitchen airflow is increased.
- Page 14 When the Wireless Ventilation Switch is activated, the Active Close damper in the bathroom return line closes down, reducing the airflow from 50 to 25 CFM, while the kitchen return is now favored, producing 75 CFM.
- Page 15 With this Dual Damper, Dual Zone configuration, zone dampers are installed in the return of both the kitchen and bathroom. This allows both areas to be independently favored if their associated wireless ventilation switches are triggered. Triggering the kitchen switch will cause the bathroom zone damper to close down, while triggering the bathroom switch will close the kitchen damper.
- Page 18 This configuration is similar to the previous Dual Damper, Dual Zone (Exhaust Configuration), but with the dampers on the supply side. This configuration could be used when you want to direct more fresh air into specific living spaces.
- Page 19 In this unique configuration, the home has zone dampers installed in both supply and return ducts. Two wireless switches are used, each one controlling multiple zones. When the first ventilation switch is triggered, it signals the CERV to close down the bedroom and bathroom, while favoring the living room and kitchen.
- Page 20 Appendix: Zone Scheduling Examples Zone damper scheduling may be used in scenarios where multiple discrete areas share a single CERV (in this example, a duplex). In this scenario, it is desired for the CERV to manage the indoor air quality of the two Zones while keeping the two completely separate (no recirculation between the two).
- Page 21 Next, add two new exhaust zones, by pressing the “Add New Zone” button. Now that the two distinct zones are defined, we will create a zone schedule. Press the Back arrow, and then select “Zone Schedule”, as seen below. In this example, we would like to cycle between the two zones on a 15-minute interval. Press the “Add Zone(s) to Schedule” button...
- Page 22 Select only the Zone 1 entry, and then press Confirm. For a more complex configuration, it would be possible to group multiple zones into a single block of scheduled time, but in this example we will keep it simple. Again, press the “Add Zone(s) to Schedule”...
- Page 23 Lastly, the Wired Auxiliary Output channels of the CERV must be configured to these two zones, to match as seen below. Operation Now that the configuration is complete, lets see how this configuration will operate Zone Schedule Times In this zone schedule, Zone 1 and Zone 2 are both configured to have 15 minutes of operation time. This means that for the first 15 minutes (out of the 30 minute overall period), the CERV will spend its time managing the first Zone.
- Page 24 After the first 15 minutes have passed, it will be time for Zone 2. Zone 1’s dampers will shut, and the CERV will operate in Zone 2 as it did in the first zone. After the 30 minute total period is complete, it will return to Zone 1 again and start the cycle over. Operation Special Cases –...
- Page 25 Operation Special Cases – High Pollutants in Zone If a zone has high pollutants, the CERV will make sure it still works to improve the air quality, while also giving proper attention to the other zone. In this scenario, the CERV has been cycling through Zone 1 and Zone 2. During Zone 2’s period, high CO2 or VOC levels trigger the CERV into ventilation mode.
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