heat-timer SQ-Elite-EXt, Инструкция по установке и эксплуатации

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SQ-Elite-MV & SQ-Elite-EXT Installation Manual 27
lead settIngs
Hold Button: MENU/<SEQ Settings>/<System Settings>/<Stage Settings>/<Lead Settings>
The lead menu is to set the Lead boiler and type of rotation appropriate for the system.
-- LEAD SETTINGS --
Lead Boiler AB
Rotate Mode Time
BACK SELECT
lead BoIler
Depends on the number of stages Default: The first set of stages
Hold Button: MENU/<SEQ Settings>/<System Settings>/<Stage Settings>/<Lead Settings>/
Lead boiler
• The Lead Boiler’s lowest stage will always be the first stage brought on when there is a call
for output. As more output is needed, additional stages are added.
• The Lead Boiler is always shown on the main display in brackets.
No Pump or Valve stages
-- LEAD BOILER --
AB
CD
BACK SELECT
• In a 2-Stage system (see Burner Type in the Startup section on page 19), the display will
show the two Lead Boiler stages bracketed
<AB>
. In a 3-Stage system, the display will
show the three Lead Boiler stages bracketed
<ABC>
, and on a two stage with a pump will
show
<AB >
where represents the pump.
• If Pump or Valve is selected as the Boiler Output in the Startup menu (See Boiler Output on
page
19), the Valve or Pump letter will be skipped from the stages. See example to the right.
The missing stage C and F represent the Boiler Valve or Pump.
• The Lead Boiler can be rotated based on the Rotation Mode selected. (See next setting)
With Pump or Valve stages
-- LEAD BOILER --
AB
DE
BACK SELECT
rotate Mode
Adjustable Time (1 hr to 999 hrs), Manual, FOFO Default: Time (24Hours)
Hold Button: MENU/<SEQ Settings>/<System Settings>/<Stage Settings>/<Lead Settings>/
Rotate Mode
• The Lead Boiler is the first boiler brought on when output is required.
• The Lead Boiler can be rotated automatically, manually or based on First-On/First-Off
(FOFO). The automatic rotation is recommended for most applications.
• The current Lead Boiler is shown in brackets on the main display.
• Only boilers which are set to Auto Mode can be Lead. Therefore, not all the boilers may be
available when manually selecting a new Lead Boiler.
• If Time is selected, a second screen will allow the adjustment of the Auto Rotate Period If
24 Hours (default setting) was selected, the first rotation will take effect after 12 hours if
the Time was not set. However, if the Time was set, the rotation will always take place at
2:00AM. The following rotations will take place every 24 hours thereafter.
• If First-On/First-Off (FOFO) is selected, the concept will follow this example; if
A is the
Lead, the starting sequence will be
A, B , then C
. When the de-energizing of the stages starts
it will turn off A, B , Then C . Then stage D will be the new lead for the next load.
-- LEAD ROTATION --
Time
Manual
FOFO
BACK SELECT
If Time Rotation is selected
AUTO ROTATE PERIOD
24hrs
[ ]
BACK SAVE
SETBACK SCHEDULE
Setback 0 F
Present Time **:**
Day Schdule 7:00Am
Night Schdul 7:00Pm
BACK SELECT
MoV settIngs
The MOV settings affects how the SQ-Elite-MV controls the motorized valve operation.
gaIn
Adjustable from -10 to 10 Default: 0
Hold Button: MENU/<MOV Settings>/<System Settings>/Gain
• The Gain adjusts the aggressiveness of the PID logic to control how much modulation is
changed when the MOV System temperature deviates from the MOV Target.
• A Gain of 0 is a good starting point for all systems.
-------- GAIN --------
0
[ ]
BACK SAVE
• If during normal load conditions, the MOV System value tends to oscillate, decrease the Gain by two numbers (for example,
from 0 to -2). Wait for at least 15 minutes before evaluating how the change has affected the system.
• If, during normal load conditions the system value tends to remain significantly and consistently below or above the
MOV Target, increase the Gain by two numbers. Wait for at least 15 minutes before re-evaluating the system.