Table of Contents
21 Important information
2Document information
2Safety information
2Symbols
2Marking
2Serial number
3Contact information
42 Indoor module's design
4VVM 320
5
5Pipe connections
5HVAC components
5Sensors etc.
5Electrical components
5Miscellaneous
63 System description
6Principle of operation
6Pipe connections
6HVAC components
6Sensors etc.
7System diagram
84 Description of functions
8Description of functions
8Menu tree
11Operating status
13Hot water
15Heating
16Cooling
16Scheduling
17Addition
17Load monitor
18External connection options
19Circulation pumps
22Supply pump exercise
22Valves
22Valve exercising
22Floor drying
22Uplink
23Smart Grid (SG)
24USB
26Accessories
355 Component description
35Components
39Sensors
39Data temperature sensor
40Electronics
40Immersion heater card (AA1)
40Base card (AA2)
40Input circuit board (AA3)
41Display unit (AA4)
426 Troubleshooting
42Alarm list
42A-alarm
46B alarm
49Troubleshooting guide
49Alarm 1 - sensor fault
50Alarm 2, 3, 6, 31 - sensor fault
51Alarm 33-38 – sensor fault
52Alarm 70 - perm. com.error input card
53Alarm 71 - perm. com.error input card
54Function check, components
54Relay test - forced control
55Function check, circulation pumps
567 Component replacement
56Basic
56Removing the covers
56Accessibility, electrical connection
59Main components
59Replacement of immersion heater
62Replacing the circulation pump GP1
64Replacing the circulation pump GP6
66Replacement of reversing valve QN 10
69Circuit board and electronics
69Immersion heater card (AA1)
70Base card (AA2)
71Input circuit board (AA3)
72Display unit (AA4)
738 Technical data
73Electrical circuit diagram, 3 x 400V
78Dimensions and setting-out coordinates
79Technical specifications
793x400V
80Index
1Table of Contents |NIBE™ VVM 320
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