34
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059063–00 REV. C
SET POINT
(NOT ADJUSTABLE IN EMS MODE)
Adjustable from -10ºF/-23ºC to 230ºF/110ºC
Default:
70ºF/ 21ºC
Button:
MENU/Set Point
In Set Point or EMS 4–20mA
•
The Set point is the temperature value the SQ-Elite-8T will use to control the system.
•
The SQ-Elite-8T will add, subtract, or hold the stages of the heating or cooling units to
maintain the system temperature around the Set point.
•
The system can be expected to fluctuate around the set point. The amount of fluctuation
depends on the System Settings and
•
If an Outdoor Sensor was connected, pressing the
SAVE
button will continue to the
Outdoor Cutoff setting option.
•
If the EMS Mode was Enabled, the Set Point will be set by the EMS/BMS system and will
be available as a read only.
•
The range of Set Point in the EMS is set in the Startup menu at 4mA and 20mA.
•
Any reading below the 2mA or above 22mA will indicate a “
Shutdown by EMS
”
message on the Message Line.
OUTDOOR CUTOFF TEMPERATURE
Adjustable Off, from 20ºF/-7ºC to 100ºF/38ºC, On
Default:
70ºF/21ºC
Hold Button:
MENU/Set Point/Outdoor Cutoff
in Set Point
Hold Button:
MENU/<Outdoor Reset>/Outdoor Cutoff
in Reset
•
In Outdoor Reset mode, Outdoor Cutoff will always exist. However, in Set Point mode, if
the outdoor sensor is installed, the Outdoor Cutoff screen will automatically appear after
the temperature Set Point has been selected.
•
In Heating applications, when the outdoor temperature falls to the adjustable Outdoor
Cutoff temperature, the SQ-Elite-8T will control and sequence the boiler stages to hold
the calculated temperature.
•
When the outdoor temperature rises to the Outdoor Cutoff plus a 2°F differential, the
SQ-Elite-8T will turn all boilers off. The System, Combustion Air Damper, and any other
Pump or valve relays that were energized will remain energized for the Run-On delay and
then de-energize.
•
In Cooling applications, when the outdoor temperature rises to the adjustable Outdoor
Cutoff temperature, the SQ-Elite will control and sequence the cooling unit stages to hold
the Set Point temperature.
•
In addition, the Outdoor Cutoff can be set to ON or OFF. In the ON option, the System
Relay will run regardless of the Outdoor temperature and the burner stages will be active
to hold the target water temperature.
•
In the OFF position, the system pump will always be off and all stages will be off as well.
10
INSTALLER MENU SEQUENCE
-- SET SYS TEMP.1 -
120 F
[
]
BACK
SAVE
-- SET SYS TEMP.2 -
170 F
[
]
BACK
SAVE
-- AT OD TEMP.1 ---
60 F
[
]
BACK
SAVE
-- AT OD TEMP.2 ---
0 F
[
]
BACK
SAVE
Outdoor Temperature (in °F)
70
60
50
40
30
20
10
0
-10
-20
120
140
130
150
160
170
180
100
110
Water
Temperature (in °F)
Custom Reset Ratio
Point1: System=120°F
Oudoor=60°F
Point2: System=170°F
Oudoor=0°F
Point1
Point2
Customized Reset Ratio
M
Maaxx TTaarrg
geett
Min Target
Outdoor Temperature (in °F)
70 60 50 40
20
30
0
-10
10
-20
120
140
130
150
160
170
180
100
110
W
ater
Temperature (in °F)
Target Offset
Offset=10°F
Reset Ratio=1.5 : 1.0
Reset Ratio
Max Target
Min Target
Reset Ratio + 10F Offset
Min Target=120°F
Max Target=170°F
----- SET POINT -----
70 F
[
]
BACK
SAVE
-- OUTDOOR CUTOFF --
70 F
[
]
BACK
SAVE
-- TARGET OFFSET ---
+0 F
[
]
BACK
SAVE
-- SET SYS TEMP.1 -
120 F
[
]
BACK
SAVE
-- SET SYS TEMP.2 -
170 F
[
]
BACK
SAVE
-- AT OD TEMP.1 ---
60 F
[
]
BACK
SAVE
-- AT OD TEMP.2 ---
0 F
[
]
BACK
SAVE
Outdoor Temperature (in °F)
70
60
50
40
30
20
10
0
-10
-20
120
140
130
150
160
170
180
100
110
Water
Temperature (in °F)
Custom Reset Ratio
Point1: System=120°F
Oudoor=60°F
Point2: System=170°F
Oudoor=0°F
Point1
Point2
Customized Reset Ratio
M
Maaxx TTaarrg
geett
Min Target
Outdoor Temperature (in °F)
70 60 50 40
20
30
0
-10
10
-20
120
140
130
150
160
170
180
100
110
W
ater
Temperature (in °F)
Target Offset
Offset=10°F
Reset Ratio=1.5 : 1.0
Reset Ratio
Max Target
Min Target
Reset Ratio + 10F Offset
Min Target=120°F
Max Target=170°F
----- SET POINT -----
70 F
[
]
BACK
SAVE
-- OUTDOOR CUTOFF --
70 F
[
]
BACK
SAVE
-- TARGET OFFSET ---
+0 F
[
]
BACK
SAVE
