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English
Installation
4.8 Connecting plate-type evaporator
temperature sensors
VLS and VLH units are provided with fittings for
hydraulic connections between heat exchangers
and plant. Each fittings is complete with sensor well
to fasten temperature sensor (BT-IN and BT-OUT).
Fittings are supplied separate and must be mounted
during the installation of the unit, as explained in
the instruction below.
4.9 Total heat recovery features
Temperature sensors
Temperature sensors for recovery system water con-
trol, BTRin e BTRout, are supplied by factory with
the unit, already wired, and must be fitted on the
water connections at the heat reclaim condenser
inlet and outlet (see wiring diagram).
Three-way valve
The three-way valve must be installed on-site. It
permits bypassing the heat reclaim condenser for
correct operation at low return water temperature.
Water and electrical connections, as well as ther-
mal insulation must be made at the time of installa-
tion on-site.
The best position is close to heat reclaim condenser
(to achieve a small water circuit).
NOTE: The space required by this valve does not
permit installation on the factory
Forced shuttering
When recovery system is on, a commutation from
air condensing and water condensing takes place.
At the same time compressor-tandem is automatical-
ly shuttered to allow the control of condensation in
the transient phase. The same process takes place
when the system commutates from water conden-
sing to air condensing.
1/2” Gas well
Manual exhaust valve
2” 1/2 - 3” manifold fitting
2” 1/2 - 3” Victaulic Flex joint
2” 1/2 - 3” Victaulic Flex joint
2” 1/2 - 3” manifold fitting
1/2” Gas well
BT-IN
IN
BT-OUT
OUT
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