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The Tstat option gives terminals 35 and 36 the capability of functioning as a heat-call. That is, when terminals 35 and 36 are
shorted, the SQ-Elite-8T will sequence the stages. However, when they are opened, all stages will turn off.
•
Setback is used to lower the set point when less load is required during nights and weekends.
•
For setback operation, the SQ-Elite-8T can either utilize its built-in night schedule, available when Shutdown or Tstat is selected
as the External Input, or an external dry contact signal to switch to setback by selecting Setback from this menu.
Burner type
On/Off, 2-Stage, 3-Stage, 4-Stage
Hold Button: MENU/<System Startup>/..../Burner Type
•
The SQ-Elite can sequence from a single stage and up to four stages per heating or
cooling unit. Select the option based on your boiler or cooling number of stages.
BoIler output
None, Pump, Valve
Hold Button: MENU/<System Startup>/..../Boiler Output
•
When None is selected, the SQ-Elite-8T will sequence multiple heating or cooling units
without any additional unit pumps or valves.
•
The Pump option allows the SQ-Elite-8T to control the cooling or heating unit stages in
addition to the unit pumps. The pump stage will run for the Run-On delay after the lower
stage of that unit has de-energized.
•
The Valve option functions similar to the pump option except that when all stages are off and after the Run-On delay has
elapsed, the Lead unit's valve relay will remain energized to allow for pump flow across the system. The lead unit's valve will
remain energized until the Outdoor temperature rises above the Outdoor Cutoff or when the Shutdown or Summer is activated.
TOTAL BOILERS
from 1 to 24
Hold Button: MENU/<System Startup>/..../Boiler Output
•
This option in combination with Burner Type and Boiler Output Startup options will
determine the total number of outputs the SQ-Elite will need to control.
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If the total number of stages selected, including unit pumps or valves, is more than the
control and extension stages, the additional units containing these stages will have CE as
their status and will seize to operate.
STAGING
Multiple Outputs, Single Output
Hold Button: MENU/<System Startup>/..../Staging
•
Most units will require that the higher output stages be energized after the lower output
stages. These units will need to select the Multiple Output option. That means, both
Low and High Output stages must be energized to achieve the unit's maximum output.
•
Some units require that when the higher output stages are required, the lower stages must
de-energize. To operate these units, the user must select the Single Output option.
SEQUENCE
Lo/Hi/Lo/Hi, Lo/Lo/Hi/Hi
Hold Button: MENU/<System Startup>/..../Sequencing
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Some units run more efficient when the lower stages are energized alone than with the
higher stages. These types of units should select Lo/Lo/Hi/Hi. Then, the SQ-Elite will
sequence the lower stages of all Automatic units before sequencing the higher stages.
•
For the rest of the unit types, the Lo/Hi/Lo/Hi should allow the staging of the lower stage of the lead unit followed by the higher
stage of the same unit. Then when more stages are needed, it will fire the lower stage of the lag unit followed by the higher
stage of the lag unit.
SQ-Elite-8T & SQ-Elite-EXT Installation Manual
Default: varies based on Burner Type and Boiler Output
Default: On/Off
Default: None
Default: Multiple Outputs
Default: Lo/Hi/Lo/Hi
--- BURNER TYPE ----
On/Off
2-Stage
3-Stage
4-Stage
BACK
-- BOILER OUTPUT --
None
Pump
Valve
BACK
-- TOTAL BOILERS --
8
[
BACK
------ STAGING ------
Multiple Outputs
Single Output
BACK
------ SEQUENCE -------
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
BACK
19
SAVE
SAVE
]
SAVE
SAVE
SAVE
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