Operation and Maintenance Manual, OnyX Sky Heat Recovery Units, 2022/01
Frapol Sp. z o.o. reserves the right to introduce changes without any prior notice.
Page
57
8.14
Assembly instructions and service settings for the SMART controller
NOTE
The following diagram does not replace the design of the ventilation system. It is for illustration only.
Diagram of the ventilation system with a cross-/counter-flow heat exchanger and a secondary DX or water
cooler, and the electric primary air heater and reheater:
1
–
exhaust vent,
2
–
air intake,
3
–
air intake temperature
sensor (external temperature),
4
–
air intake damper actuator,
5
–
GHE temperature sensor,
6
–
GHE,
7
–
GHE damper
actuator,
8
–
electric or water primary air heater with thermostat (NO-NC),
9
–
damper bypass actuator 1,
10
–
bypass,
11
–
exhaust vent temperature sensor,
12
–
exhaust air fan,
13
–
bypass damper actuator 2,
14
–
cross flow or rotary
heat exchanger,
15
–
supply air fan,
16
–
electric or water reheater with thermostat (NO-NC),
17
–
secondary DX or
water thermostat cooler (NO-NC),
18
–
exhaust air temperature sensor (from the room),
19
–
exhaust,
20
–
supply air
temperature sensor,
21
–
air supply,
22
–
control panel,
23
–
living space,
24
–
built-in controller module,
25
–
mixer
box damper actuator,
P
–
control panel,
26
–
air intake filter,
27
–
extraction filter,
28
–
differential pressure sensors,
29
–
air quality sensor,
30
–
laminar flow limiter.f
General principle of operation
When the controller is switched on, the air supply and air exhaust dampers are opened by the actuators (if connected
to the OPERATION contact), and then the air supply and air exhaust fans are activated.
Depending on the demand for
cold or heat, the controller automatically opens or closes the bypass damper or activates the operation of a DX or water
cooler operation, or electric heater operation (if installed).
The anti-freeze protection of the heat exchanger is activated
by the operation of the electric pre-heater. The automation system may be equipped with (depending on the
configuration) differential pressure sensors indicating filter soiling.
8.15
Installer Menu
To activate additional components of the system (reheat/recool coil, ground-air heat exchanger damper, cooking hood
inputs R1/R2, air quality sensor inputs) follow the instructions below:
•
Basic panel
–
Switch off the HRU using the back arrow button on the main screen, then confirm to
switch off the unit.
•
Advanced panel
–
Switch off the HRU in the rotary menu using the “HRU switch off” button
•
Go to main menu
•
Enter the password “
1111
” to access the installer menu
•
Configure the controller in the tabs
•
Output configuration (heaters/coolers/GHE damper)
•
Input configuration (measuring elements, R1/R2 inputs)
