ZVSC2100 v1_01 Operation Manual
Transcript of ZVSC2100 v1_01 Operation Manual
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ZVSC-2100 v1.01 Operation Manual CONFIDENTIAL
Zone Valve Steam ControllerZVSC-2100 (V1.01)
Operation Manual
1. Introduction
The Zone Valve Steam ControllerZVSC-2100 (Fig 1) provides control of the Steam Zone Valve in vacuum
heating system to regulate the amount of heat (thermal energy) supplied to a building. Delivering the thermal energy to a
building is achieved by a cycle principle. The controller operates motorized valve, vacuum pump, out door and system
temperature sensors (on District Steam Delivering Systems the controller can not use the system temperature sensor).
In accordance with the outside temperature the ZVSC-2100 manages varies position of the motorized valve opening and
active part of a present heating cycle length. The valve position and the active part of the cycle are calculated (or set) as
percent of the full valve opening and cycle length respectively.ZVSC-2100 works as a standalone controller and can be connected to a Local Server, which provides additional
parameters adjustments to ZVSC-2100 based on apartment's real time temperature reading in order to improve the heating
supply and distribution efficiency and avoid apartment over/under-heating. When the ZVSC-2100 is connected to the Local
Server it can be monitored and controlled from the local Intranet and/or Internet with the appropriate authentication.
The ZVSC-2100 features:
Use 2-way motorized zone valve with the floating-point type motor and vacuum pump.
Automatic valve positioning and supporting active part of heating cycle in accordance with operation parameters
and measured temperature.
Flexible determination of the valve position as a function of the outside temperature and a building thermal
peculiarity (Reset Ratio).
Flexible determination of the active part of heating needs of the building as a function of the valve position and theoutdoor temperature.
Automatic determination of reaching Establish Heat Status by means of matching of Heat Up Set Point (status of
the system temperature) or of elapsing Heat Up Time (delay before starting heating cycle).
Alternative manual control of the valve position and active part of the heating cycle (M_SET mode of operation). Automatic control the vacuum pump ON/OFF with an adjustable outdoor cut-off and mode of operation.
Displays the control cycle parameters, valve, and vacuum pump status.
Wide set adjustable operation parameters to anticipate optimal heating needs of the building.
All the adjustable operational parameters can be indicated without interruption of the heating process.
Adjustable Day and Night modes of operation.
Adjustable Winter and Summer heating process (in AUTO mode of operation).
Morning Boost period up to 120 min or Vari-Boost (the length of the Boost time depends on the Outdoor
temperature).
Displays outdoor and heating system sensors temperature.
Detects for open and short of the temperature sensors input and displays on the status screen.
Provides compensator control for unusual weather conditions.
Internal real-time clock/calendar with backup battery.
Automatic Daylight Saving Time clock adjustment.
Automatic storage of setup values. No loss of setup values or mode of operation if power is OFF for extended time.
Initial valve synchronization on power up.
Automatic valve synchronization while in operation to eliminatepossible deviation of the actual and calculated
valve position.
Simple calibration procedure.
Locally controlled by the four-button keypad and convenient menu.
Password protection for the critical parameters settings.
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Hot Water Heating Controller
ZVSC-2100 v1.01 Operation Manual CONFIDENTIAL
Remotely controlled and/or monitored through the RS485 interface.
Fig1. ZVSC-2100. Front view
2. Control
The four-button keypad and 16 characters by 2 lines LCD backlit display are located on the front panel of the ZVSC-2100. These controls provide full local management of the system. Operator can read system setting and parameters (e.g.
temperatures, valve position, alerts), set the operational modes, or change settings.The control keypad consists of four pushbuttons: Escape (Esc), Down (), Up (), Enter (Enter). The keys are also
marked with letters A, B, C, D used to simplify the passwords memorizing.
During normal operation the upper line of the display shows a current operation mode: OFF, AUTO, MANUAL OPEN
(M_OPEN), MANUAL CLOSE (M_CLOSE),MANUAL SET (M_SET). Beside it on the AUTO and the M_SET mode ofoperation it shows target valve position (percents of opening) and status of the system (detail please see on p. )
Lower line of the LCD on the AUTO or the M_SET mode of operation shows the current valve position with index (o or
c) witch are dedicated to define active status (o valve opening) or alternative status (c valve closing) of the heating
cycle. Next of the valve position there is the cycles active ratio (like: 24/36, on 60 minute Cycle Span). The bottom line of
the display can be used for a various status information and menu-driven setup dialogs. To browse to more options press theEnter key at the Enter for more status information line.
There is another LCD screen witch is appeared on Power Up. On this time the controller performs Initial Synchronization
by fully closing the valve for fine-tuning of the valve operation. Dependent of the Motor Type (2minute,.. 6minut.. or more)
synchronization will take place a little more then the motor time to make sure that the valve fully close. During this
procedure upper line of the LCD displays last mode of operation before a Power Down and status: Sync_C, witch means
that there is an Initial Synchronization and valve is going to be fully close. The low line of the LCD shows estimated elapsed
time the valve closing (in seconds) and out door temperature.
In calibration modes, the upper line of the LCD displays the information regarding particular mode.
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3. Operation
In the AUTO mode when Outdoor temperature falls below an adjustable Outdoor cutoff temperature, the controller
activates the system pump and provides automatic positioning of the control valve in accordance with the measured
temperature, season, time of day, and selected parameters.As it mansion above the Zone Valve Steam Controller (ZVSC-2100) operates on the Cycle principles. It means, that theZVSC-2100 calculates target valve position and active part of the heating cycle uses the operator specified period of time
(Cycle Span), out door temperature, and selected settings. During the active time the valve is going to be set to the target
position for the limited time called On part of heating cycle. When this time heating period is over, the controller will
switch to the alternative part of the heating cycle which is called Off part of cycle. During the Off part of the cycle the
valve is going to be close and remain on this state till Off time period is not elapsed. On this period the valve will close
(completely or partly) dependent of the parameters setting by operator (please see details on p. ). Duration of the Off part
of the cycle is: Off = (Cycle Span On). The On part time (in minutes) as well valve position can be changed
dependent of the out door temperature or/and the parameters entered by operator.
Prior to the each heating cycle, (after Initial Synchronization or after terminating of the Off time) the ZVSC-2100 switches
to the Heat Establish Procedure. On this state controller going to open the valve to the calculated position and will check thestatus of the System temperature. If it is above the HeatUp Set Point it will start a new heating cycle. Otherwise it will wait
till HeatUp time expire and after it starts heating cycle. The Heat Establish status is indicated by displaying on the LCDstatus: HeatUp (upper line) and elapsed time (in minutes) on the low line of the LCD.
In the MANUAL SET mode the controller automatically keeps the Target Valve Position and On part of the cycle to
setpoints entered by operator. In this case the ZVSC-2100 dose not use the Heating Establish Procedure as well as
information from Outdoor and System temperature sensors.
There are three additional operation implemented in the controller, they are useful when performing motor/valve
maintenance, calibration or in emergency situation. Detailed description of the operation modes can be found on section 5.To achieve an optimal performance of the thermal heat delivering into building the valve position shell be properly
calculated. To make it clear Valve Synchronization procedure is implemented. This procedure consists of two parts. First of
them has been described above (Initial Synchronization). This synchronization takes effect in the following situations:
1. After Power Up;
2. When switching season from Winter to Summer (or vise versa) in the AUTO mode of operation;
3. Before the end of the 5th
heating cycle in AUTO or M_SET modes of operation;
Second procedure called automotive adjustment valve position. This synchronization takes effect when the out door
temperature increases above the Cutoff and each time when the valve reaches to the Open or to the Close position during the
all manual operations.
On power-up the ZVSC-2100 restores all setup values. This eliminates the need for manual configuration re-entry. The
last active operation before power down is also recovered. The controller then, enters the Initial Synchronization state thatadjusts the valve to the determined position. At this time the LCD display indicates: mode of the last operation and current
status - upper line, elapsed time (in seconds) to finish synchronization and out door temperature - bottom line.
M_CLOSE: Sync_C
137sec OD = 35
The elapsed time interval for the valve adjustment depends on the type of the motor used.The valve will be fully opened or closed depending on the mode of the last operation as follows:
Operation Mode Valve Direction Status Information
AUTO To Close Position Sync_C
M_SET To Close Position Sync_C
M_CLOSE To Close Position Sync_C
M_OPEN To Open Position Sync_O
OFF To Close Position Sync_C
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During the Initial Synchronization, the operator has full access to the controller. He can check temperature (OD or ST),
calibrate sensors, change setup parameters, change mode of operation, etc.
Please note the following:
1. All operation mode changes will be displayed on the LCD. But only last change will be executed when the Initial
Synchronization completes.
2. If during the Initial Synchronization, the operator does not change the mode of the operation and restored operation
was OFF, the controller will put the valve in the position prior to power off.
If during the Initial Synchronization, the operator changes previous operation mode to the OFF operation, then the
valve will remain on the same position when the Initial Synchronization complete.
4. Menu
The process of interaction is menu driven. Menu chart is shown on Fig 2. The menu is organized in convenient and
logical way, and follows a simple set of rules. The menu chart is organized as a set of menu boxes. To navigate between the boxes one should press
Enter key to move to the right on the chart, and Esc key to move backward.
Each box contains one or more menu items. To switch between the items inside a box one should press Up
or Down keys.
Each item represents one menu entry - select a parameter to change, enter a new parameter value, changemode of operation etc.
If the item contains "NEW" word then the new value has to be entered, and Up and Down keys will
change the value, pushing Enter accepts the new value, Esc - rejects the new value, and leaves the
parameter unchanged.
If a password is required then one should enter a certain key sequence. For convenience the passwords arecoded as the sequence of letters (e.g. CACADCB).
Starting point of the menu is the topmost item of the leftmost box (current valve position VLV =xx%) on
the chart. If lost in the menu just press Esc repeatedly, until the display shows VLV =xx%. You are now in
the upper left corner of the menu chart.
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ZVSC-2100 Menu (V1.01)(Lower line of the display)
VLVc=16% C:23/37 SET OPER MODE NEW Mode=AUTO
OD Temp = 17.6 NEW Mode=M_OPENVACUUM PUMP ON * NEW Mode=M_CLOSEVLV=15.8% NEW Mode=M_SET NEW ON_CYC_PART NEWON_PART=24%10:25am Nov10'05 NEW Mode=OFF NEW VLV POSITION NEWVLV_POS=46%CompenstrV = 5 SET CompenstorV NEW Compens=5CompenstrC = 6 SET CompenstorC NEW Compens=6
Enter for more DDBBCBASET CALIBRATE Password2:****** CAL OUT Temp NEW OUTTmp=32
CAL SYS Temp NEW SYSTmp=32
VERSION V1.01 CACADCBOD Temp = 17.6 SETUP Password1:****** SET TIME & DATE SET Minute NEW Minute=6Sys Temp=168.8 SET Com.ID NEW Com.ID=1 SET Hour NEW Hour=2PMMotor Type = 2m SET CycSpan NEW Cycle=40min SET Month NEW Month=12MotorPause=10sec SET HeatUpTime NewHeatUpTme=5min SET Date NEW Date=5Com.ID = 3 SET OnCycVLVLim NEW OnVLim=100% SET Year NEW Year=6SensrType:100ohm SET OffCycVLVRto NEW OffVRto=80%HeatUpSetP=150 SET PumpRunDelay NEW PumpRunD=2mHeatUpTime=15min SET Motor Pause NEW MotorP=15secD:Mild = 70 SET Motor Type NEW MotorType=2mN:Mild = 55 SET UseSysTemp NEW UseSysTemp-NN:Stbk = 10 CACADCBOnVLVLim=100% SET MAINTENANCE Password1:****** SET D:Mild NEW D:Mild=55OffVLVRto=80% SET N:Mild NEW N:Mild=35PumpRunDelay=2m SET N:Stbk NEW N:Stbk=10Heat GainV=1:1.25 SET HeatGainVlv NEW HGV=1:1
Heat GainC=1.4 SET HeatGainCyc NEW HGVC=1.7Current Cyc# = 3 SET HeatUpSetPnt NewHeatUpSP=150
CycleSpan=40min SET Boost Span NEW BoostSpn=60m
Cyc:16/24 Off:19 SET BoostAdvance NEW Boost Adv=10
Boost Span=60m SET Day Begin NEW Begin=5:00am
BoostAdvance=6 SET Day End NEW End=10:00pm
Day Begin=5:00am SET Winter Begin NEW Begin=Oct15
Day End=10:00pm SET Winter End NEW End=May 15
WintrBegin=Oct15
WinterEnd=May 15
Fig. 2 Menu Tree
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5. Modes of operation
The upper line of the display shows the current mode of operation (OFF, AUTO, M_SET, M_OPEN, M_CLOSE),
indicates Target Valve Position during AUTO or M_SET operation.The right corner of the upper line indicates
operational state. (Please refer to the detailed description on section 7).
The ZVSC-2100 operates in one of the following modes:
Operation
ModeDescription
OFF:
The valve stops immediately in the position it has before operation was entered. No cycle is
executed. The controller is hot ready, continuing measurements and processing the sensors' data.
Operation dose not affect to pump state. This mode is useful when performing motor/valvemaintenance and in emergency situation.
AUTO:
The controller provides automatic valve cycling and positioning in accordance with the measuredtemperatures, season, time of the day, and the selected parameters. This mode is designed to be the
main mode of operation. If the system parameters are set properly, then there is no need in manual
intervention in the system performance virtually at any weather condition.
In this mode the controller distinguishes four day periods (Fig.6):
1. The morning heat-up period starts at 5:00AM. During this period the controller changes thevalve position from nighttime to daytime temperature values with a constant rate. The time span of
this period is 30 minutes (maximum).
2. The morning boost period begins immediately after the morning heat-up period ends. TheBOOST SPAN and BOOST ADVANCE parameters define the boost duration and its amount.
3. Normal daytime operationbegins from the boost period end to 10PM.
4. Nighttime period (10PM to 5AM). The amount of delivered heat can be reduced against thedaytime period, as defined by theNIGHT MILD WEATHERand NIGHT SETBACK parameters.
(Please see an example in section 6).
Notes:
- if mild weather set point has been reached D:Mild or N:Mild will be displayed for
DAY/NIGHT mild weather respectively on upper right corner of the LCD and the valve will beclosed;
- in the summer season the valve will be closed, pump will be turned off and any heating
process can be controlled by entering M_SET, M_OPEN or M_CLOSE operations.
M_SET:
(Manually Set)
In this mode the ZVSC-2100 automatically keeps the Target Valve Position and On part of the
cycle to setpoints entered by operator.
M_OPEN:
(Manually Open)
M_CLOSE:
(Manually
Close)
The M_OPEN unconditional opening of the valve and turning pump on (if it was off).
The M_CLOSE unconditional closing of the valve. After valve close the pump will stay on for a
period of time set by the PumpRunDelay setpoint.
These modes can be used in emergency to open or close the valve completely regardless of the valve
position.
To change the mode, select SET OPER MODE item in the menu, press Enter, then, with Up orDown key select a
new mode, and press Enter. When the M_SET mode is selected, the new temperature value (MTGTemp) must be
entered.
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6. Compensators
The CompensatorV and CompensatorC settings provide manual adjustment to the amount of heat being
delivered to compensate the influence of some weather conditions (e.g. strong wind).
They are directly change the valve target position and length of the On cycle respectively. When calculating targetvalve position, the controller, adds or subtracts the CompensatorV from the calculated value. Therefore, any change
made to the CompensatorV will change the value of the calculated valve position by the same amount so it will change
position of the valve. Positive values of the parameter increase heat delivery (more opens valve), while negative values
reduce it (closes the valve).Fig.4 illustrates effects of the CompensatorV on the control curve.
When the controller, calculate the length of On part of the cycle for requested heat, it adds the CompensatorC value
to the outdoor temperature thus correcting the value of requested heat. Positive values of the setting reduce heat
delivery, while negative increase it (made time of the On part more shorter).
Fig.4 illustrates the CompensatorC influence on the control curve.
This parameter is not password protected and can be changed from initial menu (please see Fig.2).Range: -40 to +40 with 1 step. Default value is 0.
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ZVSC-2100 v1.01 Operation Manual7. Operation Parameters
To provide correct and reliable operation of the ZVSC-2100 the operational parameters must be set properly.The parameter section of the menu is divided in two parts (MAINTENANCE and SETUP). Each part protected with a
password. Use following tables as guidelines when selecting parameters' values:
MAINTENANCE(password:CACADCB)
Parameter Description
Heat GainVlv
Determines ratio between the percent of the Valve Opening and the Outdoor Temperature.
Fig. 3 represents the family of control curves with Heat GainVlv as parameter when CompensatorV=0 andNIGHT SETBACK=0. With any of the ratios, the colder it becomes outside, the more the valve should be open.
Positive CompensatorV values shift the curve up, negative - down.
Positive Night Setback values shift the curve down.
Implemented 10 different ratios: 1:3; 1:2; 1:1.5; 1:1.25; 1:1; 1.25:1; 1.5:1; 2:1; 3:1; 4:1.
Ratio 4:1 (OD : ST) - the outdoor temperature would have to drop 4 to increase the valve opening by 1 percent.
Ratio 1:3 (OD : ST) - for each 1 degree drop in outdoor temperature the valve opening will increase by 3
percent.
Default ratiois 1:1%;
Fig.3 Heat GainV
Ratio) curves.
0
20
40
60
80
100
-20 -10 0 10 20 30 40 50 60
Outdoor Temperature (in F)
TargetVa
lvePosition(%)
1:3
1:2
1:1.5
1:1.25
1:1
1.25:1
1.5:1
2:1
3:1
4:1
D:Mild
(DAY MILD
WEATHER)
The controller closes the valve completely when the outdoor temperature is higher than this parameter and the
time between 5AM and 10PM. The Pump will work on for a period of time set by the PumpRunDelay setpoint
and will turn off.
Range: 40 to 80 F with 1 step. Default value is 55F.
N:Mild
(NIGHT
MILD
WEATHER)
If the outdoor temperature is higher than this parameter and the time is between 10PM and 5AM, then the valve
is closed completely. The Pump will work on for a period of time set by the PumpRunDelay setpoint and will
turn off.
If the outdoor temperature is lower than this parameter and the time is between 10PM and 5AM, then the valve
position is corrected in accordance with the NIGHT SETBACK parameter.
Range: 20 to 60 F with 1 step. Default value is 40F.
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N:Stbk
(NIGHT
SETBACK)
The controller subtracts fromthe previously calculated target temperaturethe NIGHTSETBACK value to
reduce heat delivery during the nighttime.
Range: 0 to 80 F with 1 step. Default value is 10F.
Fig.4 Reset
Ratio curve1:1 with
different
CompensatorV
parameters.
(Mild Weather
is 55F)
Valve Close0
20
40
60
80
100
-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55
Outdoor Tem perature (in F)
TargetValvePosition(%)
Co mpens=+10
Compens=0
Compens=-10
Heat GainC
Determines ratio between the percent of the On part of Heating Cycle (Heat Request) and the Outdoor
Temperature
Fig 5 represents the family of control curves with Heat GainC as parameter when CompensatorC =0 and NIGHT
SETBACK=0. Positive Compensator values shift a curve up, negative - down. Positive Night Setback values
shift a curve down. Range: 1.0 to 50.0
Fig.5 Heat Request
vs. Outdoor
Temperature
curves.
Parameter - Heat
GainCMild Weather=55,
Compensator=0)
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HEATUP SET
POINT
New cycle will comment when the system temperature on the Cold Pipe TemperatureSensor reaches this set
point (please see diagram on Figure , red line).
Range: 40 to 240F, Step 1F
Boost SpanMorning boost time span. The controller boosts heat only with AUTO mode in effect.
Range: 0, 30, 60, 90, 120 minutes (0 means no boost) or Vari-Boost (the length of the Boost time depends on
the outdoor temperature - Fig.4).
Fig.5 Vari
Boost curve
0
20
40
60
80
100
120
-20 -10 0 10 20 30 40 50 60Outdoor Temperature (in F)
Time(minutes)
BoostAdvanceThe controller adds the BOOST ADVANCE value to the previously calculated system target temperature thusincrease heat delivery during the morning boost period.
Range: 0 to 30 F with 1 step (0 means no boost). Default value is 0.
DAY BEGIN Hours and minutes (with 10 minutes step) when Day Begins
DAY END Hours and minutes (with 10 minutes step) when Day Ends
WINTER
BEGINMonth and Day when Winter Begin (dependent of the region)
WINTER
ENDMonth and Day when Winter End (dependent of the region)
SETUP(password:CACADCB)
Parameter
TIME & DATE Current Year, Month, Day, and Time can be entered and adjusted. The "am/pm" displayed with capital letters when
Daylight Saving Time is in effect.
Com.ID
Each ZVSC-2100 connected to the local server via the RS485 bus. To establish proper connection the controller
should have a unique communication address (ID).Range: 1 to 99.
Heating cycle period, minutes.
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CycleSpan
Range: 20 to 90 minutes, Step 10minutes
HEATUP TimeIn applications where the System Temperature Sensor is not using new cycle will comment when the HeatUp time
elapses.
Range: 1 to 30 minute, Step 1minute.
OnCyclVLVLim
Maximum allowed Target Valve Position on active part of the Heating Cycle.
Range: 40 to 100% with 1% step. Default value is 100%.
OffCycVLVRto
Defines percent the Valve closing should be in the Off-Cycle as a percent of the opening in the On-Cycle
Range: 0 to 100% with 1% step. Default value is 80%.
Motor Type
There are 11 types of motors (dependent on the time duration of valve close position to the open position) from
2minutes to 12 minutes with increment of one minute. Type 2m for time duration of 2 minutes; Type 3m for
time duration of 3 minutes, and so on. Default value is 6m.
Motor Pause Determinesthe amount of time the controller will pause between valve movements (open or close).Range: 0 to 60 seconds with step 1sec. Default value is 5 sec.
PumpRunDelay
Sets the time to run the Vacuum Pump for a longer period of time after the valve has been closed..Range: 0 to 60 minutes with 1-minute step. Default value is 2m.
UseSysTemp
Determines usage of the information from System Temperature Sensor. (Some applications dose not uses System
Temperature to define heating process).
Possible values Y(es) /N(o). Default value is Y.
8. Low line of the LCD.
All operational parameters and useful information can be seen on the low line of the LCD display by using Up/Down
and Enter keys (see Fig.2 left corner). The following information can be selected for displaying on the lower line of the
LCD:
Information Example Description
Valve Position andHeating Cycle Ratio VLVo =16% C:12/18
Current valve position as percent of the Open status,
Cycles On period =12 minutes/Off period =18 minuteson 30 minutes Heating Cycle (CyceSpan).
Current cycle period is open - On part of the cycle.
Outdoor Temperature OD Temp = -12.3Outdoor temperature at the OD sensor (="fail" if
temperature sensor malfunction).
Pump Status VACUUM PUMP ON * The asterisk (*) is indicating the Winter season.
Exact Valve Position VLV=15.8% Useful to make sure that the system works properly
Time and Date 10:25am Nov10'05 Time, Month, and Year.
Value of theCompensatorV
CompensatorV = 0Shows current value for the Compensators. Pressing theEner key operator can change these values.
Value of the
CompensatorCCompensatorC = 3
More information Enter for more Pressing the Enter key will show additional information
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9. System Status Information
The following are examples of various controller operations as indicated on the LCD. The first line shows the mode of
operation, target valve position and operational status. The second line shows additional information (see above table).
The short explanation of the LCDs lines follows. The current status of the device dependent on many parameters(modes of the operation, temperature, season, settings etc) and is located on the right corner of the upper line of the
LCD display.
Mode of Operation :AUTO
AUTO:56% D:Norm AUTO:56% N:Norm AUTO:59% HeatUp
VLVo=51% C:12/18 VLVc=45% C:10/20 VLV=37% 12min
Normal Day of Operation.
Heating Cycle is executed.Calculated Target Valve Position
is 56%. Calculated
Cycle periods is 12/18. Currentheating period is On (o)pen
Valve is moving to target
position, the current valve
position is 51%.
Normal Night of Operation.
Calculated Target ValvePosition is 56%. Calculated
Cycle periods is 10/20. Current
heating period is Off (c)lose.Because of the
OffCycVLVLim parameter is
set to 80% the valve reached the
close position (56*80)/100 = 45,
and will stay here till the time of
the Off period expire.
Heat up period. No cycles.
The valve is moving to thecalculated target position.
There are two possible
scenario:1.Parameter UseSysTemp is
set to Y. The controller will
monitor the System
temperature till heat is
establish. Establishing heat is
terminated when the System
temperature reaches theHeatUpSetPnt and the
controller starts the Heating
Cycles.
2. Parameter UseSysTemp
is set to N. The controller
waits till HeatUpTime isexpire and after it starts the
Heating Cycles.
AUTO:64% Boost AUTO:0% D:Mild AUTO:0% N:Mild
VLV=60% VLV=12% VLV_0%
Boost time (starts after morningHeatUp period). No cycles.
The controller recalculates target
valve position to deliverer more
heat to a building. Valid
parameters are: BoostSpan andBoostAdvance.
Day Mild Weather. No cycles.The valve is going to be close.
The automotive adjustment
valve position will execute.
Night Mild Weather. Nocycles. The valve is close.
The automotive adjustment
valve position is executing.
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AUTO:0% Summer AUTO:35% FailSf
VLV= 0% VLVo=29% C:15/15
Summer season. No cycles. The
valve is fully close. (Theautomotive adjustment valve
positioning was executed).
Outdoor Temperature Sensor
fails. The controller usesexternal Outdoor Temp. info
from host or server,if they areattached. If they are not
attached the controller would
perform Heating Cycles with
fixed values for the valve open
to 35% and heating periods of
50%. (A malfunction of the
System Temperature Sensor
dose not influence to theperformance of the Heating
Cycles).
In the AUTO mode, sign : shows that the calculated Target Valve position is between the defined maximum and
minimum (0%) allowed limits. If calculated Target Valve position exceeds the maximum allowed limit, the controller
would set Target Valve position as OnCycVLVLim setpoint and change sign: to sign^.
The controller performs automotive adjustment valve position when it reaches the boarders (0% or 100%) during the
operation. On this procedure the controller pushes the valve (certain amount of time) toward the open or the close
position. This situation is indicated on bottom line after VLV by sign _ (when valve pushes toward close position)or ^ (when valve pushes toward open position). When the procedure has completed the sign will change to =;
Mode of Operation :OFF
Mode of Operation :M_SET
M_SET: V=21%
VLVo = 19% C:3/27
Target Valve position is 21%.
Heating Cycle periods 3/27
minutes. Normal HeatingCycles. Valve is going to be
open at 21%
21 Harbor Park Dr. N, Port Washington, NY 11050 Phone: 516.626.72211 Fax: 516.626.7201
OFF :
VLV=42% No Cycle
Motorized valve stops on
position 42% open. The
vacuum pump state remainsunchanged. No Heating
Cycles.
M_SET: V=21% FailSf
VLVc = 16% C:3/27
Outdoor Temperature Sensor fails.
It dose not influence to theperformance of the Heating
Cycles. The valve would transitioninto the close position (21*80)/100
= 16 and would stay here till the
time of the Off period expire.
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ZVSC-2100 v1.01 Operation Manual
Mode of Operation : M_CLOSE
Mode of Operation : M_OPEN
7. Calibration Procedures
The temperature sensors must be calibrated after the initial system installation or after the parts replacement.
The ZVSC-2100 facilitates the calibration procedure. To enter the calibration section of the menu, select SET
CALIBRATE and then enter the password (DDBBCBA). Following table provides explanations for the calibration
procedure.
Outdoor Temperature
Sensor Calibration
1. Select CAL OUT Temp. and press Enter
2. The lower line of the display shows actual reading of the temperature sensor
without correction: "NEW OUTTmp=xxF".
3. Press Up or Down key to make the reading equal to the real outdoor
temperature, measured by the reference thermometer.4. Press Enter
System Temperature
Sensor Calibration
1. Select CAL SYS Temp. and press Enter
2. The lower line of the display shows actual reading of the temperature sensor
without correction: "NEW SYSTmp=xxF".
3. Press Up or Down key to make the reading equal to the real outdoor
temperature, measured by the reference thermometer.4. Press Enter
21 Harbor Park Dr. N, Port Washington, NY 11050 Phone: 516.626.72211 Fax: 516.626.7201
M_CLOSE: M_CLOSE:
VLV=42% VLV_0%
Valve is going to be Close.The automotive adjustment valve
position would perform at the
close position. The vacuum pump
would be turn off after period of
time set by the PumpRunDelayset point.
Valve is Close The automotiveadjustment valve position is
executing at the close position.
The vacuum pump would be turn
off after period of time set by the
PumpRunDelay set point.
M_OPEN: M_ OPEN:
VLV=27% VLV^100%
Valve is going to be Open,The automotive adjustment valve
position would perform at the
open position.
Valve is Open.The automotive adjustment valve
position is executing at the open
position.
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