Boiler Controller BLRVT3c1

Configuration Parameters

ref   Description default range
C1 FRST Frost protection level

Can disabled by setting FRST = 0 - (contact SeaChange for details)

3 2 to 15
C2 MAXF Maximum flow water temperature 80 30 to 110
C3 MINR Minimum return water temperature 40 10 to 50
C4 FLAV Flow water temperature at 10°C outside temperature 50 20 to 80
C5 SACT Sensor Action

0 = use flow or return water sensors, if both present use average

1 = use flow water sensor

2 = use return water sensor

3 = average of flow and return water sensors

1 1 to 3
C6 BLRS Total number of boilers/stages 2 1 to 8
C7 MXVT Maximum VT circuit water temperature 60 20 to 100
C8 VLIM Limits opening of the VT circuit valve if the return water temperature is below MINR.

Limiting is proportional over the band MINR to MINR-10°C.

0 = Valve will close fully if return < MINR-10°C

20 = Valve will close to 20% if return < MINR-10°C

100 = Limiting disabled, valve will follow demand.

100 0 to 100
C9 DHWP Domestic hot water priority

0 = Hot water and Heating have equal prioity

1 = Hot water has priority, VT valve will close when water requires heating

0 0 to 1
C10 MIN Boiler minimum run time 5 1 to 20 (minutes)
C11 BRON Primary pump run after all boilers off 1 0 to30

(minutes)

C12 PERD VT circuit valve stroke time 18 (180sec) 2 to 60 secs/10
C13 TRNG Flow setpoint trim, proportional effect from Zone demands 10 0 to 20
C14 CRNG Flow setpoint trim, adaptive effect from Zone demands 10 0 to 20
C15 MODE Zone actuator/valves operation

0 = actuators/valves match their zone heat demand

1 = zone with highest heating demand sets actuator/valve 100%, other zones ratio output dependant on their heat demand. All actuators/valves open fully in BRON period (heat dissaption)

0 0 to 1
C16 BLOK Boiler stages available (i.e.. not in fault condition)   0 to 8
C17 AREM All boilers remote

0 = Boiler outputs on controller are included in sequence

1 = All boiler stages are via cascade modules. Boiler outputs on controller disabled.

0 0 to 1
C18 SMRT Summer heaing inhibit if outside temperature > SMRT 18 10 to 30
C19 MIND Minimum zone demand for boilers to run. 2 0 to 10
C20 COMP Compensator offset 0 -50 to 50
C21 ALRM Alarm mode

0 = No Alarms or Alarm action

1 = No Alarms but disable on Fault

2 = Alarm and disable on fault

3 = Alarms do not disable on Fault

4 = Alarm and disable all local plant



0


0 to 4
C22 ALST Alarm state

0 = Open circuit indicates Alarm

1 = Closed circuit indicates Alarm


0

0 to 1
C23 TYPE Output type 1 0 to 8

Monitoring Parameters

ref   Description default range
    INPUTS    
I1 (C30) INPA Fault input 1 status   0 to 1
I2 (C31) INPB Fault input 2 status   0 to 1
I3 (C32) BLRA Boiler 1 output status   0 to 1
I4 (C33) BLRB Boiler 2 output status   0 to 1
I5 (C34) PPMP Primary pump output status   0 to 1
I6 (C35) VTOP VT valve open output status   0 to 1
I7 (C36) VTCL VT valve close output status   0 to 1
I8 (C37) VPMP VT pump output status   0 to 1
         
         
    SWITCHES    
W1

(C38)

AUTO Controller in automatic control 1 0 to 1
W2

(C39)

OVRD Override

W1 and W2 used together with Doorway Auto/manual dialog box

n/a 0 to 1
W3

(C40)

SHOF Summer Heating Inhibit in Operation (Read Only)

1 = Heating disabled

n/a 0 to 1
W4

(C41)

ZBST Zone boost disable - Use weather compensation only.

0 = Zone Boost disabled

1 0 to 1
W6

(C43)

RPLN Replace missing nodes in database

1 = Auto replace node

1 0 to 1
W7

(C44)

SERV Generate Service Pin Message

 

0 0 to 1
W8

(C45)

CGST Configuration mode 0 0 to 1
    SENSORS    
S1 (C50) FLOW Flow water temperature   0 to 110 °C
S2 (C51) RTRN Return water temperature   0 to 110 °C
S3 (C52) VTMP VT circuit temperature   0 to 110 °C
S4 (C53) OUTS Outside temperature   0 to 110 °C
S5 (C54) FLSP Current flow setpoint   0 to 100 °C
S6 (C55) BLOP Current boiler(s) demand level   0 to 100
S7 (C56) VTPN VT valve position   0 to 100
S8 (C57) ZDMD Zone demand   0 to 100
    KNOBS    
K1 (C60) MAXF Maximum flow temperature 50 0 to 100°C
K2 (C61) MINR Minimum return temperature 50 0 to 100°C

 

Control loop parameters

ref   Description default range
C69 FDIV divisor for Boiler flow tracking control 30 5 to 200
C70 UNDF sets very Low muzzy level for boiler loop   9 20 to 200
C71 OVRF sets very High muzzy level for boiler loop 9 20 to 200
C72 DBDF deadband sets limit for OK band for boiler loop 5 20 to 100
C73 RCGF max rate of change primary circuit temp 2 5 to 100
C74 RN F gain boiler 5 1 to 200
C75 UNDV sets very Low muzzy level for VT loop 9 20 to 200
C76 OVRV sets very High muzzy level for VT loop 9 20 to 200
C77 DBDV deadband sets limit for OK band for VT loop 5 20 to 100
C78 RCGV max rate of change variable circuit temp 2 5 to 100
C79 GN V gain variable temperature circuit 5 1 to 200

 

System parameters

ref   Description default range
C80 XCFG Force others exit config n/a 0 to 1
C81 CSTP Enable remote application restart n/a 0 to 99
C82 ADCC Check adc timer still running n/a 0 to 256
C83 APRS Reports number of restarts n/a 0 to 256
C84 NCRS Going deaf number of restarts n/a 0 to 255
C85 SWRS None power up restarts n/a 0 to 256
C86 ADCE adc errors n/a 0 to 255

Alarm parameters

ref   Description default range
C90 NOAL No Alarms n/a 0 to 1
C91 GENA General alarm A n/a 0 to 1
C92 GENB General alarm B n/a 0 to 1
C93 LOKA Lockout alarm A n/a 0 to 1 
C94 LOKB Lockout alarm B n/a 0 to 1
C95 FREZ Danger of freezing alarm n/a 0 to 1
C96 STOP Master stop alarm (firelink) n/a 0 to 1

 

Number of registered devices

ref   Description default range
C100 CAS Numer of Cascade module n/a 0 to 8
C101 ZONE Number of Zone's n/a 0 to 100
C102 PCO Number of Pump change over modules n/a 0 to 3
C103 SUPV Number of Supervisors n/a 0 to 8 
C104 HSC Number of Heat Sources n/a 0 to 20
C105 CSC Number of Cool sources n/a 0 to 20
C106 AHU Number of Air Handlers n/a 0 to 50
C107 OUTS Number of Outside Sensors n/a 0 to 1

 

Own Heat & Cool source parameters

ref   Description default range
C121 HSCN Boilers own heat source number 1 1
C122 CSCN Boilers own cool source number 0 0

Plot parameters

ref   Description default range
C130 PN A config variable number for channel A 51 0 to 255
C131 PT A period code for plot A 1 1 to 4
C132 PN B config variable number for channel B 52 0 to 255
C133 PT B period code for plot B 1 1 to 4