HTP Mod Con 300 VWH, Инструкция по установке и обслуживанию

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LP- 276 REV. 9.4.14
20 2
Flow switch. Do not change.
0 = none, 1 = water pressure switch, 2 = flow switch, 3 = low water cut-off
21 0 N/A (no change required)
22 100%
This parameter can be adjusted to lower the maximum boiler output. Default = 100%.
Ex: 500 boiler setting at 80% will go to 400,000 BTU/hr max rather than 500,000 BTU/hr.
Range: 50 – 100%.
23 0
Cascade configuration (Default 0). Leave as 0 if this is a standalone unit or if the unit is cascaded using the Vision 3
module.
Change this to 1 if the appliance is part of a cascaded system not using the Vision 3 module.
24 24
This parameter is used to set how many power on hours will go by before the priority appliance will be rotated in the
cascade system. Range: 0 - 240
25 0 N/A, must be at 0.
26 --- ---
27 0
Parameter set on 0 then E03 will be displayed if system sensor fails. Parameter set on 1, no code will be displayed if
system sensor fails.
0 = E03 , 1 = no code displayed.
28 0
Parameter set on 0 = Frost protection active.
Parameter set on 1 = Frost protection disabled.
29 0 N/A (no change required)
30 0
Parameter set on 0 = There will be no extra boiler on the Cascade Master.
Parameter greater than 0 = Percentage of the cascade output that will turn on the auxiliary boiler.
31 0 N/A (do not change)
Table 17
PART 11 – TROUBLESHOOTING
A. VWH ERROR CODE
If any of the sensors detect an abnormal condition or an internal component fails during the operation of the VWH boiler, the display
may show an error code. This code may be the result of a temporary condition, in which case the display will revert to its normal
readout when the condition is corrected, or it may be the result of a condition that the controller has evaluated as not safe to restart the
boiler. In this case, the boiler control will be locked out, requiring the maintenance person to manually reset the control by pressing the
S4/RESET key for more than 1 second. Typically, if the display has a code beginning with F followed by 2 numbers, the VWH boiler is
locked out. If the display has a 3 letter code, the fault is the result of a temporary condition.
B. BOILER ERROR
When an error condition occurs, the controller will display an error code on the display module. These error codes and several
suggested corrective actions are included in Table 19.
CONTROL PROGRAM REFERENCE CHART
FUNCTION DEFAULT SETTING PROGRAMMED SETTING FUNCTION DEFAULT SETTING PROGRAMMED SETTING
1 de No change allowed 17 0
2 149
o
F No change allowed 18 1
3 160
o
F 19 185
o
F
4 36
o
F No change allowed 20 3
5 7
o
F 21 0
6 0 Min. 22 100%
7 68
o
F 23 0
8 5
o
F 24 24 hrs.
9 180
o
F 25 0
10 68
o
F 26 ---
11 95
o
F 27 0
12 68
o
F 28 0
13 0 Min. 29 0
14 30 Min. 30 0
15 0 31 N/A
16 0
Table 18