Lennox INNOV DM R Series, Инструкция по применению

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INNOV@ CENT -AGU-0912-E . 8 .
1.4 Hydraulic section (CW version)
3-way valve
The 3-way valve used on INNOV@DM CW version units for inlet water flow regulation allowing a foundamentally
maximum precision’s regulation on CCAC applications.
Tab. 3 Technical characteristics
Frame 1 Frame 2 Frame 3
Brand / valve’s type Controls VMT2 Controls VMT2 Controls VMBT3
Kvs valve (m 3 /h) 4 4 6.3
PN valve 16 16 16
D P max. (kPa)
250 250 170
Connections (inch) 1/2” 1/2” 3/4”
All INNOV@DM CW units are supplied with 3-way valve setted by 3 points motor. Upon request, is possible to
set an advanced precision control with 0 ÷ 10 V signal regulation.
Air presence on hydraulic circuit
It is necessary to leak air from the hydraulic circuit of unit after the connection to the external circuit. To do this,
open the frontal panels and remove the air filter; after this, open the small valve on the right-top side of the coil’s
collector (take the front side of unit in reference). Use adapted tools for the manual valve’s setting.
Fig. 5 Basic cooling circuit (CW version)
Pos. Description Pos. Description
1 Chilled water inlet 5 Coil heat exchanger
2 Chilled water outlet 6 Breather valve
3 3-way valve 7 2-way valve (Opt.)
4 Plug fan -
Standard Opt. 2-way valve
M
5
6
2
3
1
7
2 1
6
5
4 M 4