54
LP-520 REV. 5.1.17
Display
Default
Detail
Description
1: EH
E0:00
Error history up to 10
Check last 10 error codes (E0 - E9)
2: cE
OFF
Delete Error history
Select “ON” to delete error code history
Range: ON or OFF
3: In
OFF
Initialized system
Select “ON” to reset to factory setting
(Burner operation time, Ignition cycles, and Supply power time will not be
reset)
Range: ON or OFF
4: Fu
GA
Change unit for water volume
Range: GA or Li
5: St
ON
Stored water heating function
“ON”, “OFF”
Select “OFF” to turn off this function
Range: ON or OFF
6: OH
68 F
Maximum Outdoor Temperature
When used with an outdoor sensor, sets the maximum outdoor design
temperature for the system design. Maximum outdoor temperature must be
set 9
o
F above the minimum outdoor temperature.
Range: (Minimum Outdoor Tempe 9
o
F) to 110
o
F
7: OL
5 F
Minimum Outdoor Temperature
Sets the minimum outdoor design temperature for the system. Minimum
outdoor temperature must be set 9
o
F below the maximum outdoor
temperature.
Range: -4
o
F to (Maximum Outdoor Temperature - 9
o
F)
8: FH
00
Maximum Fan speed
Adjusts Maximum Fan Speed
Range: -30 - +30
9: FL
00
Minimum Fan speed
Adjusts Minimum Fan Speed
Range: -30 -+30
10: dr
NO
Initialized burner operation time
Select ON to Initialize burner operation time
Range: NO or YES
11: dI
NO
Initialized ignition cycle
Select ON to Initialize ignition cycles
Range: NO or YES
12: bt
0
Boost Function
This function boosts CH temperature to the maximum if set point is not
reached within the set period of time.
Range: 0 - 120 min
13: Ft
1
CH Anti-Frequency time
This function delays burner operation during CH mode
Range: 0 - 20 min
14: bo
27 F
Set differential temperature to
turn
burner “ON”
When set, the appliance will operate to heat CH water when water
temperature falls below a differential setting.
Example: If setpoint is 180
o
F and differential is 27
o
F, the appliance will turn
on when CH water temperature falls below 153
o
F.
Range: 9 - 27
o
F
15: OF
68 F
Warm Weather Shutdown
Warm weather shut down will shut down CH Mode if the programmed
outdoor temperature is exceeded.
Range: 50 - 110
o
F
16: cH
180 F
Maximum supply temperature
Sets the maximum design supply temperature based on the minimum
outdoor design temperature. Maximum supply temperature must be set 9
o
F
above the minimum supply temperature.
Range: (Minimum Supply Tempe 9
o
F) - 180
o
F
17: cL
86 F
Minimum supply temperature
Sets the design supply water temperature based on the maximum outdoor
design temperature. Minimum supply temperature must be set 9
o
F below the
maximum supply temperature.
Range: 86
o
F to (Maximum Supply Temperature - 9
o
F)
18: dH
140 F
Maximum DHW set temperature
Sets Maximum DHW Setpoint temperature
Range:120
-
140
o
F
19: cb
100
Heating capacity
Set Heating combustion rate
Range: 50 - 100%
NOTE:
199W Models shall be factory set at 70%. The default number will be
70. This percentage can be increased with an additional pump.
20: db
100
DHW capacity
Set DHW combustion rate
Range: 50 - 100%
21: PP
40
Internal CH Pump Post Run
Timer,
T/T Calling for Heat
When appliance CH setpoint is satisfied, but T/T is calling for heat, the
burner will shut OFF and the CH pump will continue to run for this set
amount of time
Range: 1 ~ 60 minutes
22: Po
5
Internal CH Pump Overrun
Timer (On)
This function runs the Internal CH Pump after the Internal CH Pump Post
Run Timer has completed. This will cycle the Internal CH Pump again based
on the default programmed Off and On cycles and repeats until the central
heating call is satisfied.
Range: 1~60 minutes
23: PF
0
Internal CH Pump Overrun
Timer (Off)
