Setpoint/Time Period Programming - Astro Adjust ( Sunrise - Sunset ) Understanding
With the Pearl Controller you can have up to 8 setpoint Start Times within a 24 hour Period for Temperature and Humidity.
To program your Setpoints settings on the Cloud you would do the following:
To program your Setpoints settings on the Controller you would do the following:
Start Times You have up to 8 setpoint start times available to use within a 24 hour time period.
You can cycle through each of the eight start times with the LEFT or RIGHT keys.
Pressing Enter takes you to the Enabled or Disabled option. Setpoint 1 is always enabled. Setpoints 2-8 are disabled. You may enable them by use of the + key.
Note: If you only have day and night setpoints, you will only use Setpoint 1 and Setpoint 2, the other two will remain disabled
The start time is either a fixed time or it can vary daily based on the increase or decrease in day length. Sunrise or Sunset
This day length is an Astronomic Adjustment (see section 11.4.3) based on the latitude and longitude entries that you made as shown in the Setup Location portion of this manual.
By pressing the + key at the Start Time entry, you will get the following: Press + once = SRise Press + twice = SSet You would use the Srise option for the setpoint that you program at the beginning of the day. Similarly, you would use the Sset option for the end of the day setpoint. The adjustment will be made each midnight and so everyday you will see a change in the “Start Time”.
Ramp Time The ramp time enables a smooth transition of the target temperatures between the time periods. If the ramp time is set to 0 there will be an immediate step transition in the set points from the previous from the current setpoint to the following time period. If the ramp time is not zero, the ramping begins at the end of the time period.
Heat and Cool Setpoints The third line is where you enter the heat and the cool setpoints, that is, the low temperature and the high temperature targets. iv. Humidity Setpoints The humidity range is shown on the fourth line. If the humidity is below the lower value, you enter the humidification stage. If humidity is above the higher number, you go into the dehumidification stage. Pearl
To get to Setpoints you would do the following:
Using Sunrise / Sunset Astronomical Time:
You have the option of controlling the Start and End times based on a fixed time window or a relative time window (which can be at sunrise or Sunset).
When the cursor is over the “ Start" (or in other sections such as equip programming times that display "AT" ) field and you press the UP or Down keys, you will cycle through three options: SunRise , SunSet , or “ at ”.
Start (or "at") is the absolute / fixed / true time of the day.
SunRise : The indicated time will be readjusted at midnight by the to difference between yesterday’s sunrise time and the expected upcoming sunrise time.
SunSet : The indicated time will be readjusted at midnight by the to difference between yesterday’s sunset time and the expected upcoming sunset time.
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