Telemark TVP-2000, Руководство по эксплуатации, установке и обслуживанию

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TVP Manual (full) March 2007 CE rev 03.doc
2.05 Cooling Water requirement
The advanced design of a TVP means it is capable of operating over a wider range of water
temperatures than traditional systems. Optimal water outlet temperature (WT on the display)
is 25
o
C, however there is little loss of performance with water outlet temperatures as high as
35
o
C. Higher water temperatures result in a slight loss of capacity whilst water colder than
15
o
C will slow the systems response and lead to undue condensation on water lines. The
preset maximum water outlet temperature is 35
o
C this may be adjusted in the range 20
o
C to
40
o
C to suit your building services. See section 8
Cooling water may be supplied from local water supplies: this is damaging to the
environment. In-house re-circulating water-cooling system is therefore more acceptable.
Water must be free from chlorides and sufficiently soft to prevent the build up of lime scale
(0.1 MΩ resistivity). Ensure that the water is clean and free from any clogging debris
Turn on water flow and ensure no leakage is present at connectors. Open the cabinet and
check visually for water leaks inside the cabinet. Water temperature below ambient, may
cause condensation. Additional insulation of the internal water lines may be required if the
cooling water is low and the humidity high. The best solution however is to increase the water
temperature until the condensation is no longer produced.
The graph below indicates the cooling water flow required for a 35
o
C outlet temperature at
varying inlet temperatures. As a practical limit a flow rate of 30 L/Min is approximately
equivalent to a 15psi pressure drop across the TVP.
TVP Water demand
5
10
15
20
25
30
35
40
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Inlet Temp oC
F
lo
w
L
/M
in
Flow required TVP3500 Flow required TVP2000
Diagram 10
As a practical limit 30L/min approximates to a 1 bar pressure drop across the TVP. We
recommend that opaque flexible reinforced lines are used. Install the hose tail connections
onto the water supply line and return (drain) line using PTFE tape on threaded connections
and worm drive (jubilee) or similar type clips. The use of a suitable biocide can be beneficial
when used in closed loop water systems.
CAUTION
Correct orientation of the water flow is essential Inlet on the left Outlet on the right