HTP EFTU Series, Installation Instructions Manual

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LP-743 Rev. 000 Rel. 000 Date 8.25.20
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Table 4 - Complete Parameters List
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Description Value
Default Setting
34 - 40 51 4 Average CH Cycle Length (min)
34 - 40 51 6 Number of times the Priority Timer (2.10.4) has elapsed, switching priority from DHW to CH (or vice versa).
34 - 40 52 BOILER STATISTICS - 3 - READ ONLY
34 - 40 52 1
Fan Status 0 = OFF, 1 = ON
34 - 40 52 2 Fan Speed RPM
34 - 40 52 3
Boiler Pump Status 0 = OFF, 1 or 2 = ON
34 - 40 52 4
3 Way Valve Position 0 = DHW, 1 = Central Heating
34 - 40 52 5
DHW Flow Rate (in US gpm)
Not applicable to WBN models
34 - 40 52 6
APS Status 0 = Open, 1 = Closed
34 - 40 52 8
Gas Power (kW)
34 - 40 53 BOILER TEMPERATURE - READ ONLY
34 - 40 53 1
CH Supply Temperature (in °F)
34 - 40 53 2 CH Return Temperature (in °F)
34 - 40 53 3
DHW Outlet Temperature (in °F)
Not applicable to WBN models
34 - 40 53 4
Exhaust Flue Temperature (in °F)
34 - 40 54 STORAGE - READ ONLY
34 - 40 54 0
Displays current tank temperature (in °F)
Only with NTC tank sensor connected
34 - 40 55 BOILER
34 - 40 55 0
Months to next maintenance 0 - 60 (months) 12
If enabled (8.5.1 = 1), a notification is made on the display (and via the Tele-diagnostic Service, if applicable), warning
that it is time for maintenance
34 - 40 55 1 Enable Maintenance Warning 0 = OFF, 1 = ON 0
34 - 40 55 2
Maintenance Warning Reset Reset? OK= Yes , Esc = No
Resets Maintenance Advice and clears the Warning.
34 - 40 55 4 SW Version - Display Interface
34 - 40 55 5
SW Version - Main Controller
34 - 40 55 7 Floor Drying Total Remaining Days 0 - 26 Days
34 - 40 56 ERROR HISTORY - READ ONLY
34 - 40 56 0
10 last errors ERROR 0 - ERROR 9
This parameter displays the last 10 boiler errors, indicating the error code, day, month and year of occurence.
When the parameter is accessed, the errors are listed from ERROR 0 to ERROR 9.
34 - 40 56 1
Error list reset - Clears Error History Reset? OK = y es, ESC = no
34 - 40 57 FREE PARAMETERS - READ ONLY
34 - 40 57 2
NOT USED
34 - 40 57 4
Boiler flow switch 0= OFF, 1= ON
34 - 40 57 6 Safety flame sensor 0= OFF, 1= ON
34 - 40 57 8 Boiler power level (%)
0 - 100
(0 = minimum power, 100 = maximum power)
34 - 40 57 9 Boiler Flame Signal Measured by the Control
The flame signal must exceed 18 to initially detect the
presence of flame. Flame loss is detected if the signal drops
below 15.