Maintenance - Panasonic SDC07 3E5-Serie Installationshandbuch

[Upper limit water volume of the system]
The indoor unit has a build-in Expansion Vessel with 10 L air
capacity and initial pressure of 1 bar.
Total amount of water in the system should be below 260 L.
If the total amount of water is more than 260 L, please add
expansion vessel (fi eld supply).
The expansion vessel capacity required for the system can be
calculated from the formula below.
V =
V : Required gas volume <expansion vessel volume L>
Vo : System total water volume <L>
: Water expansion rate 5
P : Expansion tank fi lling pressure = (100) kPa
1
P : System maximum pressure
2
- ( ) Please confi rm at actual place
- The gas volume of the sealed type expansion vessel is presented by <V>.
It's advised to add 10% margin for required gas volume of calculation.
 
Water expansion rate table
Water temperature (°C)
10
20
30
40
50
60
70
80
90
[Adjustment of the initial pressure of the expansion vessel when
there is a difference in installation height]
If the height difference between the indoor unit and the highest
point of the system water circuit (H) is more than 7m, please adjust
the initial pressure of the expansion vessel (Pg) according to the
following formula.
Pg= (H*10+30) kPa
CHECK RCCB/ELCB
Ensure the RCCB/ELCB set to "ON" condition before check RCCB/
ELCB.
Turn on the power supply to the Indoor Unit.
This testing could only be done when power is supplied to the
Indoor Unit.
Be careful not to touch parts other than RCCB/ELCB test button
when the power is supplied to Indoor Unit. Else, electrical shock
may happen. Before obtaining access to terminals, all supply
circuits must be disconnected.
•
Push the "TEST" button on the RCCB/ELCB. The lever would turn
down and indicate "0", if it functions normal.
•
Contact authorized dealer if the RCCB/ELCB malfunction.
•
Turn off the power supply to the Indoor Unit.
•
If RCCB/ELCB functions normal, set the lever to "ON" again after
testing fi nish.
This product contains fl uorinated greenhouse gasses.
Refrigerant type : R410A (GWP=2088)
Amount : 1.45 kg (3.0276 ton CO
(The amount do not include the additional refrigerant when
refrigerating piping length extended. Please refer to adhered label
on outdoor unit for exact amount of refrigerant used and actual
tonnes of CO equivalent.)
2
TEST RUN
10
1. Fill up the Tank Unit with water. For details refer to Tank Unit
installation instruction and operation instruction.
2. Set ON to the Indoor Unit and RCCB/ELCB. Then, for control
panel operation please refers to air-to-water heatpump operation
instruction.
10
x Vo
98 + P
1 -
1
98 + P
2
60˚C = 0.0171

= 300 kPa
Water expansion rate
0.0003
0.0019
0.0044
0.0078
0.0121
0.0171
0.0228
0.0291
0.0360
WARNING
equivalent)
2
3. For normal operation, pressure gauge d reading should be in
between 0.05 MPa and 0.3 MPa.
4. After test run, please clean the Water Filter Set e. Reinstall it
after fi nish cleaning.
RESET OVERLOAD PROTECTOR a
Overload Protector a serves the safety purpose to prevent the
water over heating. When the Overload Protector a trip at high
water temperature, take below steps to reset it.
1. Take out the cover.
2. Use a test pen to push the centre button gently in order to reset
the Overload Protector a.
3. Fix the cover to the original fi xing condition.

MAINTENANCE

11
•
In order to ensure safety and optimal performance of the unit,
seasonal inspections on the unit, functional check of RCCB/ELCB,
fi eld wiring and piping have to be carried out at regular intervals. This
maintenance should be carried out by authorized dealer. Contact
dealer for scheduled inspection.
Maintenance for Water Filter Set e
1. Turn OFF power supply.
2. Set the two valves for the Water Filter Set e to "CLOSE".
3. Take off the clip, then gently pull out the mesh. Beware of small
amount water drain out from it.
4. Clean the mesh with warm water to remove all the stain. Use
soft brush if necessary.
5. Reinstall the mesh to the Water Filter Set e and set back the
clip on it.
6. Set the two valves for the Water Filter Set e to "OPEN".
7. Turn ON power supply.
CHECK ITEMS
Is there any gas leakage at fl are nut connections?
Has the heat insulation been carried out at fl are nut
connection?
Is the connecting cable fi xed to terminal board fi rmly?
Is the connecting cable clamped fi rmly?
Is the earth wire connection properly done?
Is water pressure higher than 0.05 MPa?
Is the pressure relief valve c operation normal?
Is the RCCB/ELCB operation normal?
Is the Indoor Unit properly hooked to the installation plate?
Is the power supply voltage within the rated voltage range?
Is there any abnormal sound?
Is the heating operation normal?
Is the thermostat operation normal?
Is the remote controller 3 LCD operation normal?
Is the Indoor Unit water leak free on test run?
Use test pen to push
this button for reset
Overload protector a.