Templari KITA L33, Руководство по установке и обслуживанию

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• Enter to menu “Assistance”: PRG --˃ G. Assistance --˃ g.
Manual management --˃ ASSISTANCE PASSWORD
• ScREEN Gg05 set CH/HP manually “MAN” and set the grps
(60). At that point turn on the heat pump (Mode ON) and
wait some minutes till the icon of compressor appears at
the left bottom.
WARNINGS!
During manual operation, probe B3 is ignored. If the functions
setted in manual (MAN) during the running are not set back in
automatic (AUTO) at the end, the heat pump will continue to
work until it causes a high pressure alarm.
Verify the correct operation:
• Enter to the menu “D. inputs/outputs” to check the
different temperatures from sensors
• Screen D01: B1 it shows the liquid undercooling value
in the heat pump, it has to be included between 3 and
4, about 35°C of water reached (see B7). If the HP is
started up during the hot season, set the speed of the
fan to control the undercooling (Menù G. Assistance --˃
g. Manual management --˃ G. Assistance --˃ g. Manual
management --˃ ASSISTANCE PASSWORD --˃ Screen Gg02:
set “Fan speed” manually MAN e “Demanded power” a 5%.
After checking the value of the B1 probe, reset the values
as they were previously.
• Screen D02 and D04: check the temperature of the probe
B7 (water flow) and compare it to the probe temperature
B4 to see if the circulator works with a right deltaT (less
than 8).
• Screen D06 and D04: check the B11 (condensation ) with
B7 (water flow): the difference between the two sensors
has to be included between 1 and 2 degree for a correct
operation. If the deltaT is more verify there aren’t possible
bottlenecks in the hydraulic and cooling circuit.
• Screen D08: verify the SH value (overheating) is included
between 4 eand5
• Screen D15: verify, established the conditions (B7 at 35°C,
compressor 60 rps and water deltaT <8 and SH between
4 and 5, undercooling between 3 and 4) the overheating
drain has to be about 20. During the normal operation,
free compressor, this value can reach 45K.
• Screen D16 (only in versions Kita-L, L42 e L66): check the
correct operation of the injection valve, considering over
12°C outside the valve is off.
• Menu G. Assistance --˃ g. Manual management --˃
ASSISTANCE PASSWORD --˃ Screen Gg06: activate a
defrosting cycle, setting “Start defrosting cycle” in SI (when
the cycle is finished the function comes authomatically
back to AUT).
• Menu G. Assistance --˃ g. Manual management --˃
ASSISTANCE PASSWORD --˃ Screen Gg01: “N09 Valv.3V
ACS”, set manual MAN, if the 3-way valve is installed to
the management of domestic hot water, to test the right
operation .
• Take back all settings from manual MAN to authomatic
AUT.
• During the domestic production verify the DHW has the
priority on heating/cooling, the difference of temperature
between the probes B7(water flow) and B3(domestic
probe that has to be placed on the top of the tank) can’t be
more than 3 degrees.
• Verify the work tensions and the network frequencies are
in these ranges:
230/1/50 -> values ± 6%
400/3/50 -> values ± 6%
NOTE!
Some possible malfunctions can be intercepted in the start up.
To extend the heat pump life is useful to check the value of the
probe B11 (condensation) and subtract this value from B7 (water
output). The delta T risultant, in case of correct operation, it has
to be between 1,5 and 2, according to the thermal load of the
heat pump and the water flow system side.
Contrary if the delta T is more than 5 allora, it might have
occurred one of the following problems:
• air in the fridge circuit;
• air in the hydraulic circuit;
• low flow water side;
• defective electronic valve (it works too close wrongly
increasing condensation value).
An high delta T could cause high pressure alarms, in particular
during the production of high temperature water.
NOTE!
Other problem easily detectable is the steady opening 100% of
the electronic valve.
Possible causes and solutions:
• refrigerant gas missing in the cooling system; this make
the electronic valve stay open over normal values to
compensate de lack of gas.
• heat pump wrongly used. Example: installation of an
undersized heat pump compared to the building and
it need higher power at target level. In this case for
example the compressor works at 100% even with
positive air temperatures; by the way it requires more
refrigerant than project data. The heat pump Kita has to
be dimensioned to work at the maximum just at minimum
outdoor temperatures. the electronic valves are optimized
to operate in a medium range di funzionamento and the
reason why oversized valves aren’t installed is that they
would work too close causing instability of the system.
Possible solutions:
- control the correct operation of the valve
- control that in the HP Kita there is the right quantity
of gas
- replace the heat pump is wrongly oversized compared
to the thermal need of the building.