33
Additional Boiler Parameter Instructions
There are some parameters that are not accessible through the Advanced Setup within the HAPI display.
Temperature related parameters must be entered in degrees Celcius. For example, 50
o
F = 10.0
o
C. The value “100” is entered
into the display. Refer to the next page for a conversion table.
Safety related parameters should not be altered as this will send the control into a Lockout 2 condition, and the HAPI display
cannot recover from this. If such an issue arises, the R7910B1009 Honeywell SOLA ignition control needs to be replaced.
To adjust non-accessible parameters:
Press
>
Advanced Setup
>
System Config
>
System Config
>
General Config
1)
Locate the parameter that requires adjustment and cross reference with Address Number in the table below
2)
Select
Adj addr
> Enter desired address number > Select
OK
3)
Select
Read
and press
. Check on screen R/W result: Read OK
4)
Select
Adj value
> Enter desired value > Select
OK
5)
Select
Write
and press
Parameter
Address #
Parameter Value
Lead Lag Parameters
Lead Lag modulation back up sensor
559
0 = No backup sensor
1 = Outlet sensor from lead boiler (Default)
2 = Average outlet sensor from all slave boilers
Lead Lag CH 4ma water temperature
560
-40 – 130
o
C, (Default: 160
o
F = 71
o
C)
Lead Lag CH 20mA water temperature
561
-40 – 130
o
C, (Default: 160
o
F = 38
o
C)
Lead selection method
574
1 = equalize run time (default)
Lag selection method
575
0 = sequence order
1 = equalize run time (default)
Add-stage error threshold
718
0 – 130
o
C, (Default: 5
o
F = 3
o
C)
Add-stage inter-stage delay
722
0-64800 seconds, (Default: 120 seconds)
Drop-stage threshold
727
0 – 130
o
C, (Default: 5
o
F = 3
o
C)
Drop-stage inter-stage delay
731
0-64800 seconds, (Default: 120 seconds)
Lead rotation time
733
0-64800 minutes, (Default: 60 minutes)
Standalone Parameters
CH Enable
208
0 = Disabled, 1 = Enabled
DHW Enable
448
0 = Disabled, 1 = Enabled
CH 4mA water temperature
583
-40 – 130
o
C, (Default: 160
o
F = 71
o
C)
CH 20mA water temperature
584
-40 – 130
o
C, (Default: 160
o
F = 38
o
C)
DHW priority time
452
0 = Disabled (Default)
>0 = DHW priority time (seconds)
After this timer has expired the heater will revert to CH demand
DHW priority source
463
0 = Disabled (Default)
1 = Enables DHW priority algorithm
Combination Parameters
Plate preheat setpoint
689
-40 – 130
o
C, (Default: 120
o
F = 49
o
C)
Plate preheat on hysteresis
691
-40 – 130
o
C, (Default: 5
o
F = 3
o
C)
Plate preheat off hysteresis
692
-40 – 130
o
C, (Default: 5
o
F = 3
o
C)
Plate preheat minimum on time
693
0 – 64800 seconds, (Default: 60 seconds)
Tap detect degrees
694
Rate of temperature drop in DHW sensor when tap detection is declared
0 – 130
o
C, (Default: 2
o
F/ second = 1.1
o
C/second)
Tap stop DHW-Inlet degrees
697
ΔT between DHW and Inlet when tap demand is stopped. (Default: 10
o
F = 6
o
C)
For an indirect storage tank, use 20
o
F = 11.1
o
C
Tap stop Outlet-Inlet degrees
698
ΔT between Outlet and Inlet when tap demand is stopped. (Default: 4
o
F = 6
o
C)
For an indirect storage tank, use 2
o
F = 1.1
o
C
Tap detect on threshold
699
When DHW reaches this temperature, heater activates DHW tap algorithm
(Default: 115
o
F = 46
o
C)
