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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
4.8 Connecting plate-type evaporator
temperature sensors
VLH units are provided with fittings for hydraulic con-
nections between heat exchangers and plant. Each fit-
tings 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.
Installation
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 per-
mits bypassing the heat reclaim condenser for correct
operation at low return water temperature.
Water and electrical connections, as well as thermal
insulation must be made at the time of installation 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 per-
mit 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 automatically
shuttered to allow the control of condensation in the
transient phase. The same process takes place when
the system commutates from water condensing to air
condensing.
