SystemAir VLC 1004, Руководство по установке и обслуживанию

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Page 29
English
10
10
H
D
G
5
5
2
8
A A
AT
6
3
7
4
BT
9
ON
AT
5
UNIT
CONTROL
EXV
CONTROL
A
1 1
OIL EQUAL. OIL EQUAL.
H
D
2
3 4
5
6
7
11
9
8
BT
A
C
ON
E
F
G
12 12
G G G
UNIT
CONTROL
EXV
CONTROL
S S
S
S S
S
S
S
General Description
The hydraulic connections to the evaporator are of 2”
1
/
2
Victaulic type on 504 – 804 units and 3” Victaulic
type on 904 – 1204 units.
7.6 Air heat exchanger
Coils are made of copper pipes in staggered rows,
mechanically expanded inside an aluminium finned
pack.
7.7 Fans
Fans are of directly coupling propeller type, provi-
ded with aluminium blade with wing profile.
Each fan is provided with galvanised steel accident-
prevention guard.
Finally, motors are completely closed, protection
class IP54, protection thermostat immersed in win-
dings.
VLS refrigeration diagram
D
G
5
5
2
A
A
AT
AT
5
A
1 1
OIL EQUAL. OIL EQUAL.
D
2
3 4
5
6
BT
A
C
E F
G
7 7
3 4
BT
EXV
CONTROL
UNIT
CONTROL
EXV
CONTROL
UNIT
CONTROL
S S
S S
S S
VLH refrigeration diagram
Safety /control devices:
A - High Pressure switch (42 bar)
AT - High Pressure transducer
BT - Low Pressure transducer
C - Water differential pressure switch (105 bar)
D - Air temperature sensor
E - Outlet water temperature sensor
F - Inlet water temperature sensor
Components:
1) Compressor Tandem Scroll Type
2) Air cooled condenser
3) Filter Drier
4) Electronic expansion valve
5) Globe valve
6) Heat exchanger (dual type)
7) Desuperheathers (optional)
Components:
1) Compressor Tandem Scroll Type
2) Air cooled condenser
3) Filter Drier
4) Electronic expansion valve
5) Globe valve
6) Check valve
7) Liquid receiver
8) Four-way valve
9) Suction accumulator
10) Sight glass
11) Heat exchanger (dual type)
12) Desuperheathers (optional)
G - PED pressure relief valve (46 bar)
S - 5/16” Shrader connenction
(service only)
Pipe connection with Shrader Valve
Safety /control devices:
A - High Pressure switch (42 bar)
AT - High Pressure transducer
BT - Low Pressure transducer
C - Water differential pressure switch (105 bar)
D - Air temperature sensor
E - Outlet water temperature sensor
F - Inlet water temperature sensor
G - PED pressure relief valve (46 bar)
H - Defrost temperature sensor
S - 5/16” Shrader connenction (service only)
Pipe connection with Shrader Valve
VLS-GB.indd 29 17-06-2009 15:56:45