Viessmann PM1 Installation And Service Instructions Manual page 31

Setting parameters
28 Pump shutdown delay, mains voltage
Display
120 min
No
... min
29 Pump module flow rate lower limit
Display
0 %
... %
Note
Example with parameters "20" to "25", "29" & "2A":
See Fig. 15, page 33.
2A Pump module flow rate upper limit
Display
100 %
... %
Note
Example with parameters "20" to "25", "29" & "2A":
See Fig. 15, page 33.
2B Pump module alternative use, sensor 3
Display
Usage – boiler water temp sensor
Usage – sensor input 3, pump module
2C Pump module alternative use, sensor 4
Display
Usage – buffer temperature sensor
Usage – sensor input 4, pump module
(cont.)
Value
28:120
28:0
28:1
to
28:255
Value
29:0
29:0
to
29:100
Value
2A:100
2A:0
to
2A:100
Value
2B:0
2B:1
Value
2C:0
2C:1
Commissioning and adjustment
Explanations
The time delay for switching off the circulation pump
power supply is 120 min.
No time delay for switching off the circulation pump
power supply
Time delay for switching off the circulation pump pow-
er supply for parameter "26:1"
Time delay adjustable from 1 to 255 min
Explanations
Minimum flow rate for the permissible control range.
Setting range: 0 to 100 % of max. flow rate
Note
Lower limit for max. control range: See parameter
"23".
Explanations
Max. flow rate for permissible control range.
Setting range: 0 to 100 % of max. flow rate
Note
Upper limit for max. control range: See parameter
"25".
Explanations
Temperature sensor at S3 is not enabled.
The temperature sensor connected at S3 is enabled
for use in function 2 or 6. Set parameter "00:2" or
"00:6".
Explanations
Temperature sensor at S4 is not enabled.
The temperature sensor connected at S4 is enabled
for use in function 5 or 6. Set parameter "00:5" or
"00:6".
31