Nibe VVM 500 - Page 21

TEMPERATURE LIMITER
The temperature limiter (FQ10) cuts the power supply
to the electric additional heat, if the temperature rises
to between 90 and 100 °C and it is reset manually.
Resetting
The temperature limiter (FQ10) is accessible behind the
front cover. Reset the temperature limiter by pressing
the button (FQ10-S2) using a small screwdriver. Press
the button lightly, max. 15 N (approx. 1.5 kg).
LEK
LEK
LEK
LEK
LEK
FQ10
FQ10-S2
ACCESSIBILITY, ELECTRICAL CONNECTION
The plastic cap of the electrical boxes is opened using
a screwdriver.
NOTE
The cover for the input card is opened without
a tool.
Removing the cover, input circuit board
1
2
1.
Push the catch down.
2.
Angle out the cover and remove it.
Removing the cover, immersion heater circuit
board
1
2
A
B
1.
Insert the screwdriver (A) and pry the catch carefully
downwards (B).
2.
Angle out the cover and remove it.
Removing the cover, base board
Caution
To remove the cover for the base board, the
cover for the input circuit board must first be
removed.
1
A
B
2
1.
Insert the screwdriver (A) and pry the catch carefully
downwards (B).
2.
Angle out the cover and remove it.
21Chapter 5 | Electrical connectionsNIBE VVM 500