Grundfos CONTROL MPC User Manual

44
11.7.33 Min., max. and user-defined duty (4.3.14)
Fig. 74 Min., max. and user-defined duty
Description
This function makes it possible to let the pumps run in open loop
at a set pump performance.
Setting range
The CU 351 makes it possible to change between three operating
modes:
1. Min. duty (4.3.14.1).
2. Max. duty (4.3.14.2).
3. User-defined duty (4.3.14.3).
11.7.34 Min. duty (4.3.14.1)
Fig. 75 Min. duty
Description
In all systems, apart from Control MPC-S, minimum duty is only
possible for variable-speed pumps. In Control MPC-S systems,
only the number of pumps running at 100 % speed can be set.
Setting range
• Number of pumps in operation.
• Speed as percentage (25 to 100 %) for variable-speed pumps.
Setting via control panel
1. Mark the Settings menu with .
2. Mark Secondary functions with or , and press .
3. Mark Min., max. and user-defined duty with or , and
press .
4. Mark Min. duty with or , and press .
5. Mark Number of pumps in operation, min. duty with or
.
6. Set the number with or , and save with .
7. Mark Speed with or .
8. Set the value with or , and save with .
Factory setting
TM03 2351 4807
Note
For each of these modes, the number of
operating pumps and the pump performance
(speed) can be set.
TM03 2354 4807
Number of pumps in operation during min. duty: 1
Speed as percentage for variable-speed pumps: 70

Grundfos CONTROL MPC Specifications

General

Brand	Grundfos
Model	CONTROL MPC
Category	Control Systems
Language	English