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by the SQ-Elite sensor, the Last Stage Hold setting must be accounted for. The boiler limit must be set above the Set Point
PLUS the Last Stage Hold PLUS the normal drop experienced in the piping.
•
Using the previous example of a 2 Psi Last Stage Hold with a 8 Psi Set Point, the boilers' limits must be set enough over 10 Psi
to prevent the boilers' internal limits being reached. In this situation, the boiler high limit should be set at approximately 12 Psi
to prevent the difference in boiler pressure vs. header pressure causing erratic operation.
day/nIgHt scHedules
Button: MENU/<System Settings>/<Setback Schedule>/Day Schedules
•
The SQ-Elite has two levels of heat. The Day level is used when a building is occupied
and people are active.
•
The Night (Setback) level is used when a building is not occupied, or when people are
sleeping. This setting reduces the set point by the Setback setting. If the Day calculated
pressure was 8 Psi and the Setback was 3 Psi, the Night Schedule will run at (8 Psi -
3Psi) = 5 Psi.
set present tIMe
Button: MENU/<System Settings>/<Setback Schedule>/Present Time
Button: MENU/<Maintenance>/Present Time
•
The Time is used for Day/Night Schedule and History graph.
•
Adjust the time by selecting Time from the menu and then scrolling through the hours
followed by the minutes. If hours are to be set to PM, scroll through the AM hours to
reach the PM hours.
Remember that the battery is the backup for the Time. If no power is supplied to the SQ-Elite, the
battery will die in three months and time clock values will be lost and will need to be reset.
coMbustIon aIr daMper operatIon
The SQ-Elite-8S controls multiple relays each controlling different types of equipment. In addition to the control of the boilers, it
can control a combustion air damper. See Comb. Air Damper 15.
run-on
Adjustable from 0 to 60 minutes
Hold Button: MENU/<System Settings>/Run-On
•
The Run-On applies to the System and Comb. Air relays. For the System relay, it is used
to dissipate the excess energy from the boilers.
•
For a combustion air damper, it brings in enough fresh air for the next boiler fire up.
•
The Run-On time should be set based on the size and type of the equipment.
systeM eXercIse
Adjustable Off, On
Hold Button: MENU/<System Settings>/System Exercise
•
The SQ-Elite-8S provides an option to exercise the System relay for 10 seconds when
not used for seven days.
MaIntenance
Hold Button: MENU/<Maintenance>
The Maintenance menu gives access to sensor trimming. In addition, you will have access to
view the Startup configuration settings as well as sensor histories
To be able to change the SQ-Elite settings the Program/Run Switch must be set
to Program. The switch is located under the Enclosure Wiring Cover for security.
The Enclosure Wiring Cover can be securely closed using a padlock.
SQ-Elite-8S & SQ-Elite-EXT Installation Manual
alert
alert
-- DAY SCHEDULE ----
-- NIGHT SCHEDULE --
- SET PRESENT TIME
------- RUN-ON -------
Default: 2 minutes
[
- SYSTEM EXERCISE -
Default: Off
---- MAINTENANCE ----
07:**Am
BACK
SAVE
10:**Pm
BACK
SAVE
**:**
BACK
SAVE
2min
BACK
SAVE
Off
On
BACK
SAVE
Standard
English
Present Time 12:30P
<Sensor Trim>
<Histories>
<Configuration>
BACK
SELECT
21
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