Doorway / InSite Code

Label

Description

Units

Default Value

Range

C1

FRST

Frost Protection / Non Occupied Setpoint

Deg C

3

2 to 15

C2

MAXF

Maximum Primary Setpoint

Deg C

80

30 to 110

C3

MINR

Minimum Return Setpoint

Deg C

40

10 to 50

C4

FLAV

Flow Temperature for 10°C outside temperature

Deg C

50

20 to 100

C5

SACT

Sensor Action
0: Use flow or return, or average if both sensors valid
1: Use flow sensor value
2: Use return sensor value
3: Use average of flow and return sensor values

-

1

0 to 3

C6

BLRS

Number of boilers in sequence

-

2

1 to 8

C7

MXVT

Maximum VT circuit water temperature

Deg C

80

20 to 100

C8

VLIM

Limits the opening of VT valve if return temp is below MINR
0%: Valve will close fully if Return > 10 Deg C below MINR
50%: Valve will close 50% if Return > 10 Deg C below MINR
100%: Valve will control normally, no limitation

%

100

0 to 100

C9

DHWP

Hot Water Priority:
0: Hot water and heating have equal priority
1: VT valve closes when DHW is demanding heat

-

0

0 to 1

C10

MIN

Boiler minimum run time

Mins

5

1 to 20

C11

BRON

Primary pump run on time

Mins

5

0 to 30

C12

PERD

VT valve stroke time

Secs/10

18

2 to 60

C13

TRNG

Maximum trim effect on heating setpoint

Deg C

10

0 to 20

C14

CRNG

Maximum adaptive effect on heating setpoint

Deg C

10

0 to 20

C15

MODE

Mode select:
0: VT Valve held shut while Primary Pump only runs on
Actuator demands match zone heat demand
1: VT Valve opened while Primary and VT Pumps run on
Actuator demands match zone heat demand
2: VT Valve opened while Primary and VT Pumps run on
All actuators opened proportional to highest zone demand

Note in non-Housekeeping Boiler Controllers this parameter is fixed MODE=0.

-

0

0 to 2

C16

BLOK

Number of boiler stages available to run (i.e. not locked out)

-

read only

0 to 8

C17

AREM

All boilers remote
0: Boiler outputs on controller included in sequence
1: All boiler stages via cascade modules
Boiler Controller outputs disabled

-

0

0 to 1

C18

SMRT

Summer heating inhibit if outside temperature > SMRT

Deg C

20

10 to 30

C19

MIND

Minimum Demand for Boiler Controller to operate
0: When demand drops to zero, boilers and pumps continue to run
MIND > 1: When demand drops to zero, boilers and pumps stop

%

2

0 to 10

C20

COMP

Compensator offset

Deg C

0

-50 to 50

C21

ALRM

Alarm Mode
0: Ignore alarms
1: Disable Boiler outputs, no alarm (maintenance switches)
2: Report all alarms, continue running (lockout alarms)
3: Report all alarms, continue running (general alarms)
4: Report all alarms, shut down on STOP alarm only
5: Report all alarms, shut down on STOP alarm or “Master Off”

-

0

0 to 5

C22

ALST

Alarm report sense
0: Alarm if input = 0 (contact open)
1: Alarm if input = 1 (contact closed)

-

1

0 to 1

C23

DOMN

Own Domain (for SH types only)

-

0

0 to 8

C24

TYPE

Output type : Not available from Zone Controller (Doorway only). Factory set to:
1 = Normal sequencing of stages
3 = Fixed sequencing of stages

-

1

0 to 3

C25

MNVF

Minimum VT Flow: used to ensure a minimum opening on the VT valve while the boilers are running. This only needs to be used when the Boiler does not have a pumped primary circuit or shunt circuit.

%

0

0 to 100

Doorway / InSite Code

Label

Description

Units

Default Value

Range

I1 (C30)

INPA

External input ‘a’ status

-

-

0 to 1

I2 (C31)

INPB

External input ‘b’ 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

Secondary pump output status

-

-

0 to 1

W1 (C38)

AUTO

Automatic/Manual Status

-

-

0 to 1

W2 (C39)

OVRD

Override

-

-

0 to 1

W3 (C40)

SHOF

Summer heating (inhibited if SHOF = 1)

-

read only

0 to 1

W4 (C41)

ZBST

Zone boost (disabled if ZBST = 0)

-

1

0 to 1

W5 (C42)

HAND

Manual HAND mode

-

0

0 to 1

W6 (C43)

RPLN

Replace missing nodes in Database (for SH types only)

-

1

0 to 1

W7 (C44)

SERV

Service Pin Msg (to Doorway +InSite, self resetting)

-

-

0 to 1

W8 (C45)

CGST

Configuration Mode Status

-

-

0 to 1

S1* (C50)

FLOW

Flow Temperature

Deg C

-

-

S2* (C51)

RTRN

Return Temperature

Deg C

-

-

S3* (C52)

VTMP

VT circuit Temperature

Deg C

-

-

S4* (C53)

OUTS

Outside Temperature (logged in SH types only)

Deg C

-

-

S5 (C54)

FLSP

Primary Temperature Setpoint

Deg C

-

-

S6 (C55)

BLOP

Boiler Output

%

-

-

S7 (C56)

VTPN

VT Valve Position

%

-

-

S8 (C57)

ZDMD

Maximum Zone Demand

%

-

-

S9 (C58)

VTSP

VT Setpoint

Deg C

-

-

K1 (C60)

MAXF

Maximum Primary Setpoint

Deg C

80

0 to 100

K2 (C61)

MINR

Minimum Return Setpoint

Deg C

40

0 to 100

Engineering Parameters; only accessible via Doorway and InSite

C83

MANL

Used with W5 HAND to position VT Valve manually

%

0

0 to 100

C90

NOAL

No Alarms; all alarms cleared when set to 1

-

-

0 or 1

C91

GENA

General Alarm input ‘a’ (when set to 1)

-

-

0 or 1

C92

GENB

General Alarm input ‘b’ (when set to 1)

-

-

0 or 1

C93

LOKA

Lockout Alarm Boiler 1 (when set to 1)

-

-

0 or 1

C94

LOKB

Lockout Alarm Boiler 2 (when set to 1)

-

-

0 or 1

C95

FREZ

Danger of freezing (when set to 1)

-

0 or 1

C96

STOP

STOP alarm (when set to 1)

-

-

0 or 1

C97

OUTF

Outside temperature failed (when set to 1)

-

-

0 or 1

C98

FROS

Frost protection stage 3 in progress (when set to 1)

-

-

0 or 1

C99

PMPF

Pump Failure (PCO Submodule)

-

-

0 or 1

* 24 hour plots available for these values by default

Plotting interval and plotted variable changeable via Doorway or InSite