Satchwell IAC 600, Руководство пользователя

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CONTROL MODULES
(Cont.)
Early Optimum Off (review only)
‘- - -’ is normally displayed unless the optimiser is in an optimum off
period and the space temperature falls below the optimum off set point.
At this point the parameter displays the number of minutes left until the
end of occupancy time. This same value is also output from the
module as an analogue signal. 0 to 10,000 mins - - -
Optimiser Running? (review only)
This allows you to see whether the optimiser has been disabled by the
time lost input of the optimiser module. Yes or No –
Learning is (review only)
This allows you to see whether the self learning has been disabled by
the optimiser module digital input or from the "Enable Learning"
parameter. On or Off –
Schedule Mode (review only)
This code displays the section of the operating schedule the optimiser
is currently in.
Morning = before occupancy.
Day = during occupancy.
Night = after occupancy Morning, Day,
Night –
Optimiser Status (review only)
Displays the current status of the optimiser.
Waiting = the optimiser is waiting to start a boost or run down period.
Boosting = boost is in progress.
Terminate = function (i.e. boost, run down etc.) has been stopped.
Run down = run down is in progress.
Waiting,Terminate,
Boosting, Run Down –
Optimiser Time (review only)
This displays the current time as seen by the optimiser.
0000 to 2359 –
Next Change Due (review only)
This displays the calculated time for the next change of output for the
optimiser module.
If no calculation has been made because, for instance, the next day is
off then ‘4800 waiting’ is displayed. 0000 to 2359 and
Monday to Sunday –
Schedule
Displayed in a tabular format with one ON/OFF per days and a 7 day
week. The ON and OFF times must be set in 24 hour format i.e. 3:00
AM is set as 0300. If the time schedule is to be OFF for the day then
the ON and OFF times should be set to 0000 (Saturday and Sunday
default to OFF). 0000 to 2359 Monday to
Friday
0800,1700
Saturday to
Sunday
0000, 0000
Clear Histogram
This is used to clear the histogram data if required. Yes or No No
Occupancy Setpoint
This is the setpoint to be used by the optimiser. –10,000 to 10,000 19
NOTE:- If the remote setpoint input is used then that will override the
Occupancy Setpoint.
Optimiser Direction
This sets the optimiser to operate a heating or cooling plant. Heating or Cooling Heating
Optimiser Algorithm
This selects the type of pre-heat used by the optimiser. Logarithmic
pre-heat is based on the BRE recommended BRESTART curve and
linear is the standard Satchwell type. Linear or
Logarithmic Linear
Design Pre-Heat
This parameter allows the design pre-heat to be set in minutes per
input unit. 0 to 10,000
Mins/unit 20 Mins/unit
Advanced Pre-Heat
This parameter allows the advanced pre-heat to be set in minutes per
input unit.
This value is used in place of DPH if the preceeding day(s) were off. 0 to 10,000
Mins/unit 25 Mins/unit
Enable Learning
This parameter is used to turn self learning on or off. Yes or No Yes
Learning Ratio
This parameter sets the percentage self learning ratio. 0 to 100% 10%
Enable Optimum Off
This parameter is used to turn on and off the optimum off function.
Yes or No Yes
Design Optimum Off Time
This parameter allows the run down time to be set in minutes per input
unit. 0 to 10,000
Mins/unit 30 Mins/unit
Optimum Off Setpoint
This sets the minimum inside temperature at the end of the occupancy
period.
–10,000 to 10,000 19
ENTHALPY COMPARATOR MODULE
x 1
The Enthalpy Comparator module consists of two pairs of temperature
and humidity inputs. The Enthalpy is calculated from each pair of
temperature/humidity inputs. The output is on if the top pair of inputs
have a greater enthalpy (total heat content) than the bottom pair.
Typically this module is used to compare the enthalpy of the
recirculated air and fresh air and to override the controller to minimum
or maximum fresh air depending on application.
MODULES AND FUNCTIONS
Bubbleland
Symbol
Module Range Default
05/98 9 - 24 DS 2.951A