22 - EXPANSION VESSEL OPTION
Function
■ The expansion vessels are designed to be fitted to drycoolers, for generating set cooling applications only. Their function is to compensate
for variations in the volume of fluid in one installation, while guaranteeing a sufficient quantity of coolant. Any other use is forbidden.
They must always be installed at a high point on the installation.
Limits of use
■
These vessels are not subject to [PED] Directive 2014/68/EC.
■
Limits of use: Maximum Permitted Pressure (WP) = 0.5 bar, max. temp. = 100°C.
■
The "POSITIVE/NEGATIVE PRESSURE" button is not a safety device: a valve rated at 0.5 bar must be fitted on the installation.
2
4
3
1
5
10
11
12
13
6
7
8
9
1.
Sight glass (optional)
2. Instrumentation
3.
Motor draining
4.
Expansion tubing
5.
Lifting point
6.
High alarm
7.
Low pre-alarm
8.
Low alarm
9.
Compact regulators label (optional)
10. POSITIVE/NEGATIVE PRESSURE button (manual
filling)
11. Pump filling (1/2" GAS)
12. MURPHY regulator (1/4" NPT)
13. Booster pump (1"1/4 GAS)
Description
■
There are 2 sizes available as standard for 1 or 2 circuits:
-
VE 130 for units with 1 fan line (VE130D for dual circuits)
-
VE 270 for units with 2 fan lines (VE270D for dual circuits).
Vessels on dual circuits are partitioned as follows: 1/3 (low temp.), 2/3 (high temp.).
Specifications
VE130
VE130D
VE270
VE270D
LT
HT
LT
HT
Length (mm)
1074
2194
Height (mm)
VT = TOTAL CAPACITY (litres)
130
43
87
268
89
179
V1 = HIGH ALARM capacity (68% VT)
89
30
59
182
61
121
V2 = Cold FILLING capacity (35%VT)
46
15
31
94
31
63
VU = USEFUL expansion volume
43
14
29
88
29
59
LOW PRE-ALARM capacity (32%VT)
42
14
28
86
29
57
LOW PRE-ALARM capacity (16%VT)
21
7
14
43
14
29
Empty weight (kg)
44
52
77
79
Optional equipment
■
Sight glass. Gives a visual indication of the level of liquid (range:
100 mm) between the high alarm level and the low pre-alarm
level.
■
Float-type or MURPHY-type regulators available for high alarm,
low pre-alarm or low alarm (combinations on request).
Connection
■
For HORIZONTAL and VERTICAL units with 1 fan line, the
expansion vessel is supplied fitted and connected (except for
the vertical "S" module with 1 fan motor assembly). No
connection is necessary.
■
For VERTICAL units with 2 fan lines, the vessel is supplied
separately.
1. Place the vessel on top of the unit and screw in the 2 feet on
the side rails.
2. Connect the expansion tubing to the sleeve on the drycooler
intake manifold.
3. If required by the installation, connect the booster pump (see
diagram).
■
Next, connect any optional equipment to the power supply (see
specific manuals).
Start-up
1. Open the sight glass hole
2. Fill the vessel via the plug until the fluid overflows from this
hole.
3. The vessel is then filled to its cold filling level. Close the sight
glass hole again and refit the filling cap. The vessel is
operational.
■
After several hours of operation, check the seals on all the
couplings, top up the fluid if necessary and check the correct
operation of the equipment (e.g. level regulators, etc.).
Maintenance
■
At least once a year, check that the equipment is operating
correctly and check the seals on all the couplings. Top up the
fluid if necessary.
22
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