51
IN
IN
IN
IN
OUT
OUT
IN
OUT
IN
OUT
OUT
OUT
Q
B
Q
B
Q
AB
Q
AB
Q
A
I
CHILLER
(1)
(1)
HYDRAULIC CONNECTIONS
Basic diagram Standard Unit VB [PLANT SIDE wATER CIRCUIT]
The following figures represent connections to the plant side exchanger.
IMPORTANT
: There must be a constant flow of water to the exchanger. With accessory primary-secondary
pumping module MP PS STD is mandatory to install a water filter in the secondary circuit immediately after
of the water tank.
I = User system
(1):
Component not required if the unit is equipped with the “Water storage tank” accessory. Installation of this accessory is recommended if the unit
is without it.
VB + hydronic kit accessory MP PS and only tank SAA
VB + hydronic kit accessory MP AM and MP SS
Pressure gauge
Thermometer
On-off and/or water
flow rate regulating valve
Monitoring electronics
(governor)
Pump
Filter
Tank
Expansion tank
Air vent valve
Safety valve
Coupling
Water filling unit
Three-way driven valve
Recovery water flow inlet probe
Basic diagram for units with Desuperheater [RECOVERY wATER CIRCUIT]
The basic diagram given is valid for VD-VR version
The figure below shows the basic diagram of the portion of the system with the heat exchanger used for
recovering partially heating power that would otherwise be disposed of in the air.
IMPORTANT: The water flow to the heat exchanger must be constant, it is required to install a water
filter upstream of the exchanger.
Recovered hot
water tank
A
AB
B
Summary of Contents for RHA series
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