Panasonic Aquarea B1 Planning And Installation Manual page 104

Maintenance
7.5 Checking of the FI protection switch
WARNING
Danger to life from electric shock!
Life-threatening voltage levels are present in the device.
► Take care not to touch any live device parts. Only touch the buttons of the FI protec-
tion switch.
Carry out the following steps:
1. Set the FI protection switch to ON.
7. Switch on the electricity supply of the indoor unit or compact device.
8. Press the TEST button on the FI protection switch.
If the FI protection switch is in perfect working order, the lever must be pointing down-
wards to the OFF (green) position. If this is not the case, contact an authorised dealer.
9. Interrupt the electricity supply of the hydro-module again.
10. Set the lever of the FI protection switch to ON again.
11. Switch the electricity supply of the indoor unit or compact device off again.
7.6 Checking of the quick vent valve and venting the system
Carry out the following steps:
1. Open the quick vent valve (1) by turning the valve cap (2) of the quick vent valve one
full turn in an anti-clockwise direction
→ 4.6.3.1 Components (compact systems), p.
1
2
Air should now be heard escaping.
12. Repeat the sequence until there are no audible sounds of escaping air.
13. Close the quick vent valve again by turning in a clockwise direction.
200
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
(→ 4.6.2.1 Components (split systems), p.
47).
1 Quick vent valve
2 Valve cap
7.7 Resetting the thermostatic overload protection
The overload protection
nents (compact systems), p.
If the thermostatic overload protection is triggered due to the water temperature being too high,
carry out the following steps in order to reset it:
1. Remove the overload protection cover.
14. Using a test pin, press the button (2) lightly in the centre in order to reset the thermostatic
15. Resecure the cover again afterwards.
7.8 Carrying out maintenance work on the cooling circuit
32,
CAUTION
Danger of injury due to unprofessional handling of coolants
Unprofessional handling of coolants leads to various dangers of injury such as freezing, fire and
the danger of explosions and the danger of injury occurring.
► Working with the coolant must be done by a trained skilled person or an authorised
dealer with refrigerant certification.
► Observe all the Safety Notices in force for the respective coolant (R410A or R407C).
► Before commencing work on the cooling circuit, the coolant must always be pumped
out first.
i
Note
Instructions for switching on the pumping-out operation as well as operating the devices can be
found in the operating instructions for the respective device and in the Appendix to this Manual
(→ 8.1 Extract from the operating instructions (H-Generation), p.
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
(→ 4.6.2.1 Components (split systems), p.
47) protects the system against any superheat of the water.
overload protection.
3
1 1 Overload protection
2 Button
3 Press
2
Maintenance
32, → 4.6.3.1 Compo-
203).
201