Operation and Maintenance Manual
OnyX Pride Recuperators February 2019
Frapol Sp. z o.o. reserves the right to introduce changes without any prior notice.
Page
41
8.16
Assembly
instructions
and
operational
settings
for
the
SMART
controller
CAUTION!
The
following
diagram
does
not
replace
the
design
of
the
ventilation
system.
It
is
used
for
illustrative
purposes
only.
Diagram
of
the
ventilation
system
with
a
cross-/counter-flow
heat
exchanger
and
a
secondary
freon
or
water
cooler,
as
well
as
an
electric
pre-heater
and
re-heater:
1
- Exhaust vent,
2
- Air intake,
3
- Air intake temperature sensor, NTC
type (external temperature),
4
- Air intake damper actuator,
5
- GHE temperature sensor, NTC type 6 – Ground Heat
Exchanger,
7
- GHE damper actuator,
8
- Electric heater or a primary water heater with a thermostat (NO-NC),
9
- Bypass
damper actuator,
10
– Bypass,
11
- Exhaust vent temperature sensor, NTC type
12
- W2 exhaust fan,
13
- Bypass damper
actuator 2,
14
- Cross-/counter-flow heat exchanger,
15
- W1 air supply fan,
16
- Electric heater or a secondary water heater
with a thermostat (NO-NC),
17
- Freon heater or a secondary water heater with a thermostat (NO-NC),
18
- Exhaust
temperature sensor (from the room), NTC type
19
- Exhaust,
20
- Supply air temperature sensor, NTC type
21
- Supply air,
22
- ecoSTER TOUCH room panel with a room thermostat function,
23
- Living space,
24
- Built-in ecoVENT-F module,
25
-
Damper actuator in the mixing chamber,
P
– Control panel,
26
– Air intake filter,
27
– Exhaust filter.
General
principle
of
operation.
When the controller is switched on, the supply and extract air dampers are opened by the actuators (if connected to the
OPERATION contact), and then the supply and extract air fans are started.
Depending on the demand for cold or heat, the
controller automatically opens or closes the bypass damper 1 and bypass damper 2, or starts the freon cooler, the water
cooler, or the electric heater.
The
heat
exchanger
is
protected
against
frosting
by
a
multi-stage
procedure,
taking
into
account
the
following:
•
Switching
on
of
a
pre-heater
(if
any).
•
A
reduction
of
the
air
flow
in
the
air
supply
fan
and
an
increase
of
the
air
flow
in
the
air
exhaust
fan
-
if
the
risk
that
the
heat
exchanger
will
freeze
is
real:
the
ratio
can
change
up
to
25%
-
the
supply
air,
80%-
the
exhaust
air.
•
Maintaining
the
temperature,
if
secondary
heat
exchangers
are
used
-
if
not
present,
only
by
the
heat
recovery
exchanger.
•
Opening
of
the
supply
air
bypass
-
final
protection.
