RBI FlexCore CK 850 Control Manual Download Page 120

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MODBUS COMMUNICATIONS

HeatNet Control V3

Page 120

MODBUS Input Variables (Read Only)

Address

Name

Raw Data

Type

Scale

Description

Valid Values/Range

30010

Day

8 bit unsigned

---

Real time clock day.

– 31

30011

Year

8 bit unsigned

---

Real time clock year.

– 99

30012

Hour

8 bit unsigned

---

Real time clock hour.

– 23

30013

Minute

8 bit unsigned

---

Real time clock minute.

– 59

30014

Second

8 bit unsigned

---

Real time clock second.

– 59

30015

Weekday

8 bit unsigned

---

Real time clock weekday.

1 (Monday)

– 7 (Sunday)

30016

Boiler01Status1

16 bit unsigned

---

Boiler (1

– 16) status flags. These bits

indicate the state of the 24VAC

interlocks, ignition circuit, and various

other conditions. See the values

column for a list of conditions.

Boiler01 = Master

Boiler02 = Member01

…

Boiler16 = Member15

See the “BoilerStatus1” and

“BoilerStatus2” Tables

below.

30017

Boiler01Status2

30018

Boiler02Status1

30019

Boiler02Status2

30020

Boiler03Status1

30021

Boiler03Status2

30022

Boiler04Status1

30023

Boiler04Status2

30024

Boiler05Status1

30025

Boiler05Status2

30026

Boiler06Status1

30027

Boiler06Status2

30028

Boiler07Status1

30029

Boiler07Status2

30030

Boiler08Status1

30031

Boiler08Status2

30032

Boiler09Status1

30033

Boiler09Status2

30034

Boiler10Status1

30035

Boiler10Status2

30036

Boiler11Status1

30037

Boiler11Status2

30038

Boiler12Status1

30039

Boiler12Status2

30040

Boiler13Status1

30041

Boiler13Status2

30042

Boiler14Status1

30043

Boiler14Status2

30044

Boiler15Status1

30045

Boiler15Status2

30046

Boiler16Status1

30047

Boiler16Status2

30048

Boiler01RuntimeHigh16 16 bit unsigned

---

– 4294967295 seconds

Summary of Contents for FlexCore CK 850

Page 1: ...severe personal injury death or substantial property damage Do not use the boiler during construction Construction dust and particulate particularly drywall dust will cause contamination of the burner...

Page 2: ...THE INFORMATION INCLUDING BUT NOT LIMITED TO ITS CONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSE http www rbiwaterheaters com The RBI name and logo Mestek name and logo FlexCore...

Page 3: ...2 STAGE CONTROL T1 T2 26 HEATING METHOD 3 4 20 MA CONTROL 26 HEATING METHOD 4 AA INPUT 27 HEATING METHOD 5 MODBUS COMMUNICATIONS 27 Domestic Hot Water Methods 28 DHW METHOD 1 DHW HEATING ONLY USING A...

Page 4: ...n 65 Communications 66 Failsafe Modes 66 FAILSAFE REQUIREMENTS 66 Limited Flow Boiler Control Options 67 FlexCore Multi Heat Exchangers 69 3 HEAT EXCHANGER WIRING 71 HeatNet Online 72 Wiring Connectio...

Page 5: ...TABLE OF CONTENTS HeatNet Control V3 Page 5 CONTROL SETTINGS MENU PAGE 4 117 MODBUS Communications 118 Worksheet 129 Type II Thermistor Resistance Temperature Table 134...

Page 6: ...e performing this task the control also monitors dedicated external limits in a limit string and provides an orderly shutdown and fault indication in the event of a tripped limit The monitored limits...

Page 7: ...W HEADER sensor is not connected to J10 a boiler always defaults to the role of Member The Member boiler can operate as part of a multi boiler system or as a stand alone unit In a multi boiler system...

Page 8: ...17 Dual PID controls One for space heating and one for DHW heating Allows for simultaneous DHW Space heating Standard Features Overview 1 Five levels of external control inputs including modulation an...

Page 9: ...a 10k Sensor or a dry contact input from a tank thermostat 28 Domestic Hot Water relay for use with a pump or valve 29 On board power and socket for Protocessor BACnet LonWorks module 30 HI LO relay...

Page 10: ...2 6 for Base Loading version 2 x Control AC Interlocks 24 VAC 120 VAC input Control Inputs AA Heat Demand 4 20 mA Enable OA override T1 T2 dry contact inputs 4 20 mA 0 10 VDC Dimensions 9 wide 6 high...

Page 11: ...250 inch 14 0325 ACI 10k CP I NW Supply Header Return Sensors 13 0104 ACI CP I 2 5 Sensor with well 14 0328 ACI X 2 CP PO 4 4 probe with dual sensor 14 0329 ACI X 2 CP PO 6 6 probe with dual sensor 14...

Page 12: ...s setpoint See the DHW section to fire using two setpoints When a boiler is to be fired in a multi boiler system header water temperature is below the heating band the Master checks the HeatNet boiler...

Page 13: ...section outlines this with examples NOTE If the boiler is running as a stand alone boiler or is direct modulated including the AA input the MOD MAX clamp will also be in effect for the ADD BOILER DEL...

Page 14: ...e PRIORITY 2 set of boilers will fire first next based on runtime This has the effect of flipping the Priority of the sets Stopping Boilers When a boiler is to be stopped water temp is above the heati...

Page 15: ...SETUP OPERATION HeatNet Control V3 Page 15 Mixed Boilers Example Condensing Non Condensing...

Page 16: ...ure is below 140F and condensing occurs The Master s system return water would need to be used 3 The Outside Air Temperature is above a setpoint determined by the system configuration This setpoint en...

Page 17: ...economy in the system Also non condensing boilers may be set to go offline when a return temperature is too low using the SETUP AUX FUNCTIONS HET EXCHANGER TEMP DISAB menu Base load boilers can also...

Page 18: ...vered to the system Number of boilers Turndown Ratio Effective System Turndown 5 5 1 25 1 Mixed Boiler System Examples System MMBTU Effective Turndown MOD MAX Priority 1 CK 5 1 Priority 2 CK 5 1 8 0 2...

Page 19: ...boilers are of different sizes try to use larger Priority 2 boilers If the calculated Mod MAX value is greater than 99 the combination cannot be used since short cycling will occur Once the Priority...

Page 20: ...800 MBTUs with room of 25 MBTUs and prevent the short cycle condition Boiler System Response 2 1 CK 1500 3 CK 2500 50 Mod Max While a CK 1500 running with a CK 2500 is an acceptable solution it may n...

Page 21: ...0 1750 2000 Max Input 500 750 1000 1250 1500 1750 2000 Min Input 4 1 125 188 250 312 375 437 500 Mod Max 80 400 600 800 1000 1200 1400 1600 Mod Max 70 350 525 700 875 1 05 1220 1400 Mod Max 60 300 450...

Page 22: ...NCTIONS HEAT EXCHANGER TEMP DISAB SYS RET needs to be set Then the Master boiler needs to set SETUP AUX FUNTIONS HEAT EXCHANGER SEND RETURN to which of its return temperatures it would send to all boi...

Page 23: ...ments to the Mod Max value can be adjusted to achieve the greatest efficiency The Boiler System Response 5 chart illustrates how each boiler in the example is brought on and fires to 60 drops to a low...

Page 24: ...fourth method turns the boiler ON and OFF 100 modulation using the AA terminal Heating Method 5 The fifth method uses an RS485 digital communications cable with the MODBUS protocol The boiler is contr...

Page 25: ...a common system supply header sensor on the H Net network can command the boiler fire rate of all Member boilers The Master can call as many boilers that it has available boilers are auto detected ov...

Page 26: ...s using the inputs T1 and T2 inputs Its intended use is with an external stage controller with no analog or modulation outputs Closing only one of these contacts tells the boiler to operate at MINIMUM...

Page 27: ...the event communications is lost from the Building Management System BMS This feature can be turned off in SETTINGS COMMUNICATIONS SETPOINT TIMER OFF If the setpoint timer feature is set to ON the SE...

Page 28: ...e menu choices are AUTO will handle normal heating only applications It may also be used when individual boilers have tanks connected and are controlled with the DHW BOILER set to LOCAL DHW is for DHW...

Page 29: ...eatNet HeatNet Local Pump HeatNet DHW METHOD 1 DHW Heating ONLY using a DHW MASTER Multiple Non Condensing Boilers A DHW Setpoint is maintained in the DHW tank based on the Master s DHW Sensor The sys...

Page 30: ...et Address Combustion Air Damper 2 Off Inputs Local Remote JPS1 Jumper must be cut to service DHW Remote Outputs Local Pump On When Boiler Running Member 3 Settings HeatNet Address Combustion Air Damp...

Page 31: ...from the DHW pump or the System pump normally open relay contact to control flow of the heating water into the tank s coil or system loop The System pump will always be enabled as long as the Heat De...

Page 32: ...the DHW sensor The upper and lower differential temperatures will also be loaded 8 The SHARING item is set to OFF only boilers that are not firing will be checked for runtimes and fired 9 Set the LOC...

Page 33: ...s In this method the Master simultaneously controls both space heating and DHW heating The Master is piped to only service space heating and both members are piped to service space heating and DHW hea...

Page 34: ...r DHW Failsafe Space Heating W Valves Settings HeatNet Address DHW Boiler Mode DHW Local Pump Off Combustion Air Damper HeatNet Failsafe 2 Combination No Off On Inputs Local Remote JPS1 Jumper must be...

Page 35: ...s In this method the Master simultaneously controls both space heating and DHW heating The Master is piped to only service space heating and both members are piped to service space heating and DHW hea...

Page 36: ...afe Space Heating W Pumps Settings HeatNet Address DHW Boiler Mode DHW Local Pump Off Combustion Air Damper HeatNet Failsafe 2 Combination Yes Off On Inputs Local Remote JPS1 Jumper must be cut to ser...

Page 37: ...at boiler becomes active and not only runs to provide failsafe space heating but DHW heat as well The STATUS screen will display H NET LOST If a thermostat is used the boiler will run to Method 5A unt...

Page 38: ...er If a space heating boiler is needed a DHW running boiler cannot be stolen for space heating Space heating has priority when DHW is trying to steal CYCLE The DHW algorithm can steal a space heating...

Page 39: ...boilers will cycle on off when they are called to perform DHW Heating LOCAL PUMP OFF This can be set on any boiler to determine how the local pump valve behaves when called to perform DHW heating PURG...

Page 40: ...METHOD 3 DHW Heating ONLY using a Header sensor input Multiple Boilers Reverse Return In this method a Heating Setpoint is maintained at the Master s System Header Sensor located in the DHW tank The M...

Page 41: ...ocal Remote Header Sensor JPS1 Jumper must be cut to service DHW Local Yes Tank Outputs Local Pump On When Boiler Running Member 2 Settings HeatNet Address Combustion Air Damper 2 Off Inputs Local Rem...

Page 42: ...lled by the SETTINGS SETPOINTS HEAT BAND differential This can be understood by referring to the INTRODUCTION section on the MASTER in the beginning of this manual This differential has the added effe...

Page 43: ...ster s Heat Demand input enables space heating by energizing the system pump and maintaining the Heating Setpoint at the Master s System Header Sensor When the Aquastat located in the DHW tank calls f...

Page 44: ...turn JPS1 Jumper must be cut to service DHW Local Tank Aquastat Yes Optional Outputs System Pump On Local Pump On DHW Pump On When Boiler Enabled When Boiler Running DHW Call Member 2 Settings HeatNet...

Page 45: ...s not used 6 PUMP PRIORITY Setting this value to YES will turn OFF the system pump when the DHW setpoint override mode is active Setting this value to NO leaves the system pump on This active period i...

Page 46: ...Sensor Local Pump System Pump System Supply System Return DHW METHOD 4b Space Heating with DHW Override of Setpoint on Master using a DHW Sensor Primary Secondary Reverse Return In DHW METHOD 4b the M...

Page 47: ...urn DHW Sensor JPS1 Jumper must be cut Local Jumper Yes Optional Yes Tank to service DHW Outputs System Pump On Local Pump Valve On DHW Pump On When Boiler Enabled When Boiler Running DHW Call Member...

Page 48: ...ed in the heating loop when a tank is calling for DHW heat 4 LOWER BAND This is not used 5 UPPER BAND This is not used 6 PUMP PRIORITY Setting this value to YES will turn OFF the system pump when the...

Page 49: ...a 10K Type II Tank Sensor In DHW METHOD 5a Local DHW Tank Heating Override the Master s Heat Demand input enables space heating by energizing the system pump and maintaining the Heating Setpoint at th...

Page 50: ...ber 2 Settings HeatNet Address DHW Boiler Mode DHW Use Sensor DHW Local Pump Off Combustion Air Damper 2 Local Yes Yes Off Inputs Local Remote OR OVR DHW Sensor JPS1 Jumper must be cut to service DHW...

Page 51: ...there is a DHW call for heat A DHW call for heat is when the DHW temperature is below the DHW SETPOINT LOWER BAND or when the DHW temperature is below the DHW SETPOINT UPPER BAND and boilers are firin...

Page 52: ...local pump off during a DHW heating cycle but will keep the local pump on for the LOCAL DELAY 10s time before shutting off This LOCAL DELAY time can be adjusted in the next menu item by pressing the d...

Page 53: ...brid Sensor the Master s Heat Demand input enables space heating by energizing the system pump and maintaining the Heating Setpoint at the Master s System Header Sensor using the available members A M...

Page 54: ...ettings HeatNet Address DHW Boiler Mode Combustion Air Damper 2 Local Off DHW Use Sensor Hybrid Sensor DHW Local Pump Off No Supply Yes Inputs Local Remote OR OVR JPS1 Jumper must be cut to service DH...

Page 55: ...sensor is needed DHW sensor will allow the placement anywhere needed to maintain that locations temperature This is an additional sensor that needs to be acquired A thermostat can be placed in a tank...

Page 56: ...running This is to ensure that the system pump and damper will be enabled for the system The System pump and Damper control are the main reasons to connect the Base Load boiler to the Master A Member...

Page 57: ...s 20 mod to another 8 million BTUs Example Base loading relay Not Preferred Example of having a larger Base Load boiler that is not of the modulating type If there is a 6 Million BTU Base Load boiler...

Page 58: ...will open to disable the boiler when the OUTSIDE AIR read from the Outside Air Temperature sensor if equipped rises above this value SETTINGS BASE LOADING STOP WHEN OUTSIDE AIR IS ABOVE If the OUTSIDE...

Page 59: ...eeds to supply the necessary current i e 20 mA This resistor is located on the bottom side of the control board When a 4 02 ma signal is sensed the boiler will initiate a start sequence and fire the b...

Page 60: ...OTE ENABLE INPUT is closed the boiler will start and the setpoint will be set to 130F If a control current of 10 mA is applied the boiler will track on a linear slope towards the 20 mA SETPOINT settli...

Page 61: ...prove the control changes to the first pump and attempts to prove flow This cycle will continue indefinitely until flow is established If flow is lost while running this process is also used in an att...

Page 62: ...hen the call for heat is lost and the pump post purge time has been satisfied 3 The third mode works much the same as mode 2 but it allows the inlet sensor RETURN to be used with the outlet sensor SUP...

Page 63: ...the prove switch A backup boiler will also need to have the damper relay contacts wired in parallel with the Master for when the Master is powered OFF A second wire on the Master J12B terminal 7 is th...

Page 64: ...a 1k ohm platinum type sensor Part 0040 1300 To configure the 1k PT Stack sensor Switch S5 3 should be set to the NONE position and S5 4 set to PLATINUM STACK The sensor will then be auto detected af...

Page 65: ...e damper fails to open and never closes its proof switch a retry algorithm will attempt a retry Every 10 minutes the damper relay will cycle and try to open the damper again If the H Net control close...

Page 66: ...the lack of being updated The system setpoint timer and system setpoint work in tandem to externally control i e a BMS building management system the operating setpoint The setpoint countdown timer sh...

Page 67: ...will be displayed in the running screen The BTU value is relative to the accuracy of the sensors the gas BTUs the flow sensor accuracy and is only available as an estimate of the BTU load A calibrated...

Page 68: ...e Master Boiler if Status 4 bit 13 is set it indicates that the HeatNet control is running with limited boilers due to the BMS system specifying BMS LIMIT BOILERS being less than the available boilers...

Page 69: ...the input ribbon cable is selected and data from that control is accessed Once the appropriate heat exchange has been selected the Minibus Role can be set or checked HeatNet controls attached to each...

Page 70: ...tops all Subordinate boilers and monitors their activity so its transmit LED will be very active Color Display Wiring The manager and subordinate controls are all connected to the color display using...

Page 71: ...forms as a redundant check of the minibus state The Scanner Air Press input on J11B of the Manager is wired to the Alarm contacts of J13B of the middle rear or first subordinate boiler If 3 heat excha...

Page 72: ...e HeatNet Online Alert CK 1500 Fault High Limit May 17 2014 11 09AM WVHID99999 View Alert Data Once the user has logged in a selection screen for the building sites the user has registered will be dis...

Page 73: ...Wiring Connections Dip Switches and Wiring Wire Strip Length If the terminal blocks are of the screwless type the wire should be stripped to 42 or 10 67mm If the terminal blocks are of the screw type...

Page 74: ...unications HeatNet Termination Enable Switches DOWN Position Disable Switches UP position Switch shown disabled MEMBER Close to run at Local setpoint MASTER Close to control all boilers and run at Sys...

Page 75: ...age 75 Heating Methods 2 and 4 AA High Fire and High Low Master or member boiler Heating Mode 2 Stage Control Inputs T1 or T2 Closed Lowfire T1 T2 closed Highfire T1 T2 Heating Mode 4 High Fire Close...

Page 76: ...ng a 0 10 VDC signal multiply any references to current in the manual by 5 Example 5ma 5 2 5 VDC This Method allows direct modulation of the boiler based on a 4 20 mA control signal A control capable...

Page 77: ...be damaged The pin headers are located on the control U shaped that the Protocessor bridge module plugs in directly Align the sockets on the Protocessor with the pin headers on the control then press...

Page 78: ...8 Low Fire Hold Fires the boiler at the minimum rate while in Calibrate This functions exactly as the T1 input Calibrate Allows adjustment of the Minimum Fire Maximum Fire and Pilot Ignition settings...

Page 79: ...ll OPTIONAL Water Temperature Common System Supply Header REQUIRED Water Temperature OUT supply of Boiler REQUIRED Water Temperature INLET return of Boiler IF CONNECTED BOILER MASTER OPTIONAL Outside...

Page 80: ...hanger The Minibus requires a serial data cable between each HeatNet Control board The first and last Heat Exchanger must have the minibus terminated for the bus to work properly S1 would be placed in...

Page 81: ...imit Heat Demand HEADER SENSOR Determines Master Boiler 4 RETURN SENSOR 3 SUPPLY SENSOR 2 LOCAL PUMP ENABLE 8 FLOW PROVE 10 SYSTEM PUMP ENABLE 14 FLOW PROVE 9 OUTDOOR SENSOR North Away From Exhaust 1...

Page 82: ...must drop below 4 01 mA to stop Boiler MAX OUTPUT After Ignition 0 100 Control Signal to MAX Output Boiler Off Percent of Boilers INPUT 0ma Display input of control when running A control signal great...

Page 83: ...VAC Transformer DAMPER Prove Switch DAMPER Enable 24 VAC Mains MASTER BOILER MEMBER BOILER 1 Connection if Member boiler is running as Failsafe MEMBER BOILER 2 Connect to 24 VAC Return on each Boiler...

Page 84: ...stem pump wiring System Pump Contactor System Pump Voltage Feed System Pump System Pump Voltage Return 120VAC Ph2 Ph3 120 Return 120 VAC Return DPST Relay System Flow Prove Switch 120VAC Add additiona...

Page 85: ...gation This diagram depicts the Home screen and subsequent screens when the right arrow button is pressed Repeatedly pressing the right arrow button forms a ring of the different screens These screens...

Page 86: ...icates Operating Limit Band Beginning of Red is the Operate Limit Top Arrow is the Supply Temperature Bottom Arrow is the Return Temperature Boxed Boilers indicate Boilers that are recognized by HeatN...

Page 87: ...ailsafe Boiler in Failsafe mode No other Heating Demand may be present HeatNet Call for Space Heat is controlled by HeatNet HeatNet DHW Call for DHW Heat is controlled by HeatNet High Fire High Fire A...

Page 88: ...when an Ametek blower is present or an Ametek blower being set when a VFD is present BLOWER RPM HIGH Ametek Blower If the signal from the HeatNet control board to the Ametek blower exceeds the factory...

Page 89: ...rom thermal shock stress When this is displayed firing rate is limited Ignition Control Alarm Occurs when the Ignition Control closes it alarm relay Input on J5 FLAME SAFE ALARM The ignition control a...

Page 90: ...0 minutes the circulator pump relay will cycle ON for 10 seconds and then OFF for 10 seconds to try and establish flow No System Flow The SYSTEM WTR FLOW interlock is open J11A 1 J11A 2 Once the HeatN...

Page 91: ...input to the High Limit Control Supply Water Temperature has Exceeded the Operating Limit When the supply water temperature exceeds the top of the Operating Limit Band and the Operating Limit This is...

Page 92: ...and the HeatNet control Warm Weather Shutdown in effect The WWS temperature has been exceeded The boiler system is in a sleeping state but can be awoken with a DHW call Once the outside a ir temperatu...

Page 93: ...hen the Header temperature is above the band Yellow the HEAT STOP TIMER Shed Boiler Delay is used to stop shed boilers All boilers running are modulated to maintain Setpoint Boilers are not added or s...

Page 94: ...ile button Pressing this button will allow viewing of the log file See Log Entry section In the Bottom Left corner there is the Settings button which will allow changes to the operational settings of...

Page 95: ...in the display press the Adjust button under the Minimum setting The percentage value will turn green Adjust the Minimum value to the desired setting using the arrow keys The Minimum setting is clamp...

Page 96: ...be accessed by the use of the exchanger switching button icons The heat exchanger box high lighted in blue represents the heat exchanger that is being calibrated To select the heat exchanger to be ca...

Page 97: ...the arrow keys The top line left corner indicates any condition that caused the event This may be a fault such as to indicate a sensor that has failed or general event as denoted by Event The top lin...

Page 98: ...V3 Page 98 CONTROL SETTINGS MENU To Enter the Settings menus the first boiler button must be selected The button is highlighted by the red box Next press the Settings box as also illustrated by the r...

Page 99: ...s are the H Net address of each boiler from 2 16 LOCAL SETPT SYSTEM SETPOINT 160 F 40 195 F Local setpoint used to maintain temperature of SETPT SOURCE System Setpoint is used by the Master HEAT BAND...

Page 100: ...xpires This time is measured against the actual time the system pump is enabled This would include a post purge time If ROTATION is set to PUMP HRS ROTATE TIME is used to switch pumps when the pump s...

Page 101: ...AL PUMP VFD OFF ON OFF ON Outputs a 0 10VDC or 4 20 mA signal from J4 pins 1 5 that is proportional to the fire rate of the boiler Connect to a VFD controlling a Local pump FLOW PROVE 10 Seconds 10 24...

Page 102: ...a retry will occur every 10 minutes in attempt to open the damper When using J12B in a common damper configuration wiring is done beginning with the Master boiler J12B Pins 7 8 are connected to the p...

Page 103: ...the Master to run If a System Return sensor is available on the Master set this setting to SYS RET If only a Return sensor is available set to RETURN TEMPERATURE DISAB OFF SYSTEM RETURN RETURN OFF Thi...

Page 104: ...es allow configuring the LOCAL and DHW pumps SETPOINT 160 F 40 200 F Setpoint that the boiler system will target when a call for DHW LOWER BAND 5 F 1 30 F DHW SETPOINT LOWER DHW DIFF if the DHW water...

Page 105: ...is that these timers work in parallel but this timer only counts down when flow is present It stops counting down when flow stops but will not cause a flow fault until its time expires The Local Pump...

Page 106: ...to Lockout the boiler will no longer perform DHW Heating A manual reset or toggling the OR OVR input will reset the Lockout If a time is set the boiler will wait this time before it can perform DHW he...

Page 107: ...tem selects how they are to be used The MASTER TYPE setting is used to determine if the MASTER control is to be used as a space heating control a combination DHW space heating control or just to perfo...

Page 108: ...AMP message is displayed in the STATUS screen This value is derived by multiplying twice the minimum fire rate of the boiler with the least turndown 2 turndown 20 5 1 25 4 1 33 3 1 In mixed boiler siz...

Page 109: ...l setting on each boiler FIRING MODE RUNTIME LOFO Boilers are fired Last On First Off starting with Lead Boiler FOFO Boilers are fired First On First Off RUNTIME Boilers are fired based on the runtime...

Page 110: ...r is supported using relay K8 START WHEN MODULATION IS ABOVE MODULATION IS ABOVE OUTSIDE AIR IS BELOW RETURN IS ABOVE Used in Conjunction with DELAY TIME MODULATION IS ABOVE 95 0 100 The base load rel...

Page 111: ...0 mA to 0 10 VDC The dip switch S6 also needs to be set correctly in conjunction with this setting START SETPOINT 50 F 50 195 F When using 4 20 mA setpoint control in SETPOINTS SETPOINT SOURCE This is...

Page 112: ...registers must occur within 1 minute otherwise the BMS Setpoint will revert back to the System Local setpoint ENABLED YES YES NO If a flow meter or flow control is to be used set to YES GLYCOL MIX 0...

Page 113: ...ly for reference Future releases may incorporate this feature Check the revision history sheet on the website BLOWER VFD VFD AMETEK EBM This is the blower type associated with the product This should...

Page 114: ...0 s 1 8 0 s If a signal is sent to decrease the blower rpm the blower s deceleration speed will change at this rate until its rpm is equal to the signal sent per second Setting this value too low will...

Page 115: ...are loaded This does not include the factory calibration values LOAD DISPLAY FIRMWARE BOX The Display firmware is independent of the HeatNet control s firmware A separate Display firmware file is req...

Page 116: ...storage memory locations Use the arrow keys to select a stored file for copying to running memory When SELECT is pressed the file will be marked so it will be loaded on the next power cycle Power cyc...

Page 117: ...PDF of the Boiler s IOM The HeatNet Manual button when pressed loads the Display firmware release PDF of this manual The All Documents button when pressed displays all the files available for reading...

Page 118: ...point work in tandem to externally control i e a BMS building management system the operating setpoint The setpoint countdown timer should be loaded with a timeout value in seconds prior to writing th...

Page 119: ...ate portion of this system variable to write the new date and time to the system clock 0 no action 1 set write the clock 40018 DHWSetpoint 16 bit signed 1 0 DHW Setpoint 40 200 F 40019 BMSGPMRate 16 b...

Page 120: ...a list of conditions Boiler01 Master Boiler02 Member01 Boiler16 Member15 See the BoilerStatus1 and BoilerStatus2 Tables below 30017 Boiler01Status2 30018 Boiler02Status1 30019 Boiler02Status2 30020 Bo...

Page 121: ...0058 Boiler06RuntimeHigh16 30059 Boiler06RuntimeLow16 30060 Boiler07RuntimeHigh16 30061 Boiler07RuntimeLow16 30062 Boiler08RuntimeHigh16 30063 Boiler08RuntimeLow16 30064 Boiler09RuntimeHigh16 30065 Bo...

Page 122: ...99 Boiler04SupplyTemp 30100 Boiler05SupplyTemp 30101 Boiler06SupplyTemp 30102 Boiler07SupplyTemp 30103 Boiler08SupplyTemp 30104 Boiler09SupplyTemp 30105 Boiler10SupplyTemp 30106 Boiler11SupplyTemp 301...

Page 123: ...135 Boiler04CyclesLow16 30136 Boiler05CyclesHigh16 30137 Boiler05CyclesLow16 30138 Boiler06CyclesHigh16 30139 Boiler06CyclesLow16 30140 Boiler07CyclesHigh16 30141 Boiler07CyclesLow16 30142 Boiler08Cyc...

Page 124: ...WTemp 30212 Boiler05DHWTemp 30213 Boiler06DHWTemp 30214 Boiler07DHWTemp 30215 Boiler08DHWTemp 30216 Boiler09DHWTemp 30217 Boiler10DHWTemp 30218 Boiler11DHWTemp 30219 Boiler12DHWTemp 30220 Boiler13DHWT...

Page 125: ...ed The system return temperature if available See BoilerStatus4 to determine if the sensor is present 32 250 F 30265 SystemFlowHigh16 32 bit unsigned 0 01 Boiler SystemFlow High Upper and Low Lower 16...

Page 126: ...mber 1 Master 15 Boiler Detected at this address 0 not detected 1 detected MODBUS BoilerStatus2 Flags Bit Description Valid Values Range 0 Disabled boiler is offline For instance Minimum off Time Flow...

Page 127: ...nd input and the Modbus Heat Demand 40001 MODBUS BoilerStatus3 Flags Bit Bit Bit 0 AA High Fire 0 off 1 on 1 Heat Demand Local Override 0 off 1 on 1 2 4 20 mA Remote Enable 0 off 1 on 3 Outdoor Air Re...

Page 128: ...HW Boiler 1 This control board has been designated a DHW boiler by cutting the DHW jumper JPS1 0 no 1 yes DHW jumper cut 11 Operating Limit Clamp 1 Boiler input is being limited clamped due to a high...

Page 129: ...TDOOR AIR RESET OA RESET WARM WEATHER SD WWS SETPOINT SET OA SETPOINTS WATER TEMP HIGH OA TEMP WATER TEMP LOW OA TEMP PUMP OPTIONS SYSTEM PUMP POST PURGE TIME PUMP ROTATION ROTATION SYSTEM PUMPS ROTAT...

Page 130: ...TIME END DAY TIME OPTIONS TEMP SCALE KEY CLICK SKIP PASSWORD BRIGHTNESS LOG RUNTIME RUN HOURS DATA LOG ENTRY SIZE BOILER CYCLES AUX FUNCTIONS COMBUST AIR DAMPER TYPE IN USE INPUT PROOF TIME ALARM SILE...

Page 131: ...X RUNTIME HOLDOFF TIME PUMP ALWAYS ON SYSTEM CLOCK ADVANCED SETUP DISTRIBUTED CTRL HeatNet Master MASTER TYPE H NET ADDRESS MODULAR BOILER SET SPACE HEATING ADD BOILER DELAY SHED BOILER DELAY MODULATE...

Page 132: ...PPLY R E T U R N H E A D E R DHW 6 7 8 TYPE 4 20 mA INPUT ANALOG IN CHANNEL CHANNEL MODE 4 mA SETPOINT 20 mA SETPOINT BOILER START PRIORITY PASSWORD COMMUNICATIONS Modbus Address BAUD DATA FORMAT SETP...

Page 133: ...V3 Page 133 SYSTEM CONFIGURE INTERLKS INTRLK ASSIGNMENTS SYSTEM FLOW ON LOAD FIRMWARE Version OPTION BOILER TYPE PRODUCT CONDENSING BTU IN MORE MENUS BLOWER MASS TURNDOWN ALTITUDE CALIBRATION SETTINGS...

Page 134: ...072 80 176 1 255 15 5 72 951 85 185 1 070 10 14 55 326 90 194 915 4 5 23 43 326 95 203 786 6 0 32 32 650 100 212 678 6 5 41 25 391 105 221 587 6 10 50 19 899 110 230 510 6 15 59 15 711 115 239 445 2 2...

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