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.

21 Harbor Park Dr. N, Port Washington, NY 11050 Phone: 516.626.72211 Fax: 516.626.7201

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Hot Water Heating Controller


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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ZVSC-2100 v1.01 Operation Manual

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.



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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.


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%


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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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


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.

14

ZVSC2100 v1_01 Operation Manual

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Transcript of ZVSC2100 v1_01 Operation Manual