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Taps
1 2
1
2
3
4
3 4
Used to isolate the refrigerator circuit R410A during void
procedure or welding with a stream of nitrogen.
Service valves
1 2
1
2
3
4
3 4
They must be used exclusively for the focusing operation of the internal
vacuum split refrigerant circuit with associated piping, to perform
welding with a stream of nitrogen or for commissioning of the inner
split pressure to find any leaks (nitrogen).
The service valves are not load valves and should not be used under
any circumstances to load or unload the gas R410A of the machine.
To prepare the pipes for installation, proceed as follows:
•
Measure the distance between the indoor and outdoor unit, and
make all the curves necessary to the installation.
•
The pipe-laying has the lowest number possible of curves, because
each curve increases the circuit flow losses and reduces the
performances of the machine.
•
Cut the pipes slightly longer than the measure.
•
Completely remove the smears of the cutting section, keeping the
tube tilted downward and blowing air into the tube.
•
Respect the lenght sizes showed in the chart, or add the quantity of
refrigerant demanded.
•
Weld the brackets supplied by the manufacturer at the end of the
connection tube. Weld the inner side female connections and the
male connections outer side. Where possible perform the weld in a
nitrogen atmosphere.
•
Check that for each connection the teflon gasket provided is present
•
Carefully isolate refrigerant connections.
8.3 Void procedure
•
We suggest to do a leak test in nitrogen at 40 bar to verify if the
connections and welding are good.
•
To make the void, connect the pump to charge connections in the
outdoor unit.
•
Perform the void procedure till to reach a pressure of 0,4 mbar
(procedure duration about 1 h for total connections lenght equal to
15 m. If the lenght increases for consequence the duration of the
void procedure will increase)
•
At the end of the procedure, close the tap of the vacuum pump, and
fill in a minimum amount of refrigerant gas by acting on the taps to
pressurize the pipes before unplugging the pump. Then open the
taps to drain the refrigerant gas.
9 Hydraulic connections
A correct installation of the hydraulic connections is fundamental
to grant the nominal performances of the machine. For
this purpose some indications about proper processes and
components are furnished as follows.
9.1 General information
1. Make sure the unit is in balance and correctly positioned
before making any operation. Always adopt protection device.
2. Isolate all the connection hydraulic pipes to avoid losses of
heat energy.
3.
If the product isn’t installed on the highest point of the circuit,
then install in a suitable point some additional vent valves.
4. Install on the return of the heat circuit, between two shut-
off valves, a dirt protection filter to clean regularly
5. For the connection of the piping, see the destination of
each tube in the figure below
With ACS
907
1053
550
146
72
164
220
275
86
61
149
C
B
A
D
E
F
228
164
220
275
86
70
61
B
A
D
E
F
A water inlet /
ingresso acqua
connection /
raccordo
:
1"
B water outlet (plant) /
uscita acqua (impianto)
connection /
raccordo
:
1"
C water outlet (DHW) /
uscita acqua (ACS)
connection /
raccordo
:
1"
D gas flow /
passaggio refrigerante (gas)
outer diameter /
diametro esterno:
22mm
E liquid flow /
passaggio refrigerante (liquido)
outer diameter /
diametro esterno:
12mm
F electrical wiring /
passaggio cavi elettrici
WITHOUT DHW
SENZA ACS
WITH DHW
CON ACS
DATE :
DRAWN BY :
DESCRIPTION:
TEMPLARI SRL - HEAT PUMP TECNOLOGY
Via Pitagora, 20A - 35030 Rubano (PD)
Tel. +39 049 5225929 - www.templari.com
Giovanni B.
KITA INTERNAL UNIT
rev.1
(SPLIT)
04/03/2020
Without DHW
907
1053
550
146
72
164
220
275
86
61
149
C
B
A
D
E
F
228
164
220
275
86
70
61
B
A
D
E
F
A water inlet /
ingresso acqua
connection /
raccordo
:
1"
B water outlet (plant) /
uscita acqua (impianto)
connection /
raccordo
:
1"
C water outlet (DHW) /
uscita acqua (ACS)
connection /
raccordo
:
1"
D gas flow /
passaggio refrigerante (gas)
outer diameter /
diametro esterno:
22mm
E liquid flow /
passaggio refrigerante (liquido)
outer diameter /
diametro esterno:
12mm
F electrical wiring /
passaggio cavi elettrici
WITHOUT DHW
SENZA ACS
WITH DHW
CON ACS
DATE :
DRAWN BY :
DESCRIPTION:
TEMPLARI SRL - HEAT PUMP TECNOLOGY
Via Pitagora, 20A - 35030 Rubano (PD)
Tel. +39 049 5225929 - www.templari.com
Giovanni B.
KITA INTERNAL UNIT
rev.1
(SPLIT)
04/03/2020
A: water inlet - connection Ø 1”
B: water outlet (plant) - connection 1”
C: water outlet (DHW) - connection 1”
D: gas flow - outer diameter 22mm
E: liquid flow - outer diameter 12mm
F: electrical wiring
9.2 Special components
The installator has to make the choice of the necessary system
components, we will show here below some useful device for
the operation of the machine:
•
Shut off valves incoming and outgoing the circuit allows
maintenance operations no draying the system;
•
Security valve hydraulic side.
•
Thermometers and pressure gauges incoming and
outgoing the main components grant a better monitoring
and facilitate the maintenance;
•
Vent valves in the highest system points grant the air vent
from the circuit;
•
Drain taps on the bottom of the system to facilitate the
drain;
•
Expansion vessel to keep the right water pressure
compensating for thermal expansions has to be sized
considering the total volumes of water in the system;
•
A Y filter installation is necessary.
WARNINGS!
Installare a security valve on the thermal side.
Содержание KITA L33
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