Rendamax R3456 EVO, Manual, Page: 58 / 72

Installation examples
B-C: Boiler control via 0-10VDC + plate heat exchanger
B-C: Boiler control via 0-10VDC + plate heat exchanger
Description

R3456 EVO with plate heat
exchanger
Tips

Complete accessory kits with plate
heat exchanger are available for
∆T=10-20K (see chapter
„Accessories“).

The primary circuit should be de-
signed for ∆T=20K, this guarantees
a high boiler efficiency.

When the secundary circuit is de-
signed for a ∆T smaller than 20K,
the flow temperature of the plate
heat exchanger will be lower than
the flow temperature of the boiler.
This should be taken into consider-
ation during the design stage.

The plate heat exchanger should
be positioned close to the boiler, to
avoid a negative influence on the
temperature control quality.

In case of a boiler room installed
on the roof, the boiler may never
be hydraulically connected at the
highest point of the installation.
elco
P
M
57
Non-return valve
Flow/ return temperature
sensor
Inlet valve
Common flow temperature
sensor
Outdoor sensor
Mixing valve with actuator
Expansion vessel
Supply air fan (option)
HC1
T
T
T
Heating ciruit
Circulators (for boiler and
system)
Low loss header with air
separator
Plate heat exchanger
Dirt separator with
magnetite filter
Security group with air
separator
Possible extension
Legends
Gas
Flow
Return
Sensor cable
Bus connection cable
M
P P
M
P
Heating circuits distributor