Klimor EVO-T Plus - Page 100

COMPACT AHU WITH HEAT RECOVERY EVO-T +
OPERATION AND MAINTENANCE MANUAL
98
Preliminary
heating ->
Preliminary heating – selection of preliminary heating function using the integrated-
preliminary electric heater or the GHEX.
Functions of preliminary electric heater „1”:
External temp. limit – external temperature limit below which the anti-frost function
is active. Then the controller in charge of maintaining constant temperature at the air
exhaust downstream the B4 heat recovery is activated.
Rec. requested temp. – air exhaust setting downstream the heat recovery, achieved
with support of the preliminary electric heater in order to provide protection of the heat
recovery against frosting
NE1 – readout of control level of the preliminary electric heater
Functions of ground heat exchanger GHEX:
Heat recovery – external temperature limit below which the system initiates the heat
recovery, heat recovery initiated
Cool recovery – external temperature limit above which the system initiates the cool
recovery, cool recovery initiated To – time of turning o the heat recovery of the GHEX
in order to enable the bed regeneration.
Ton – time of returning to the heat recovery of the GHEX after the bed regeneration
Set time – real time setting
GHEX – current condition of the heat recovery air damper of the GHEX
The bypass is mechanically coupled with the cross-ow recovery. Turning OFF the bypass actuator activates heat/cool recovery
Recovery ->
Heat recovery – external temperature limit below which the system initiates the heat
recovery, heat recovery initiated
Cool recovery – external temperature limit above which the system initiates the cool
recovery, cool recovery initiated
Heat recovery – it is possible to select operating mode: 1. Auto – temperature control, 2.
ON – always ON, 3. OFF – always OFF.
Heat recovery – current condition of the bypass air damper of the cross-ow recovery
Secondary heating ->
Secondary heating – activation of the secondary water or electric heater function
Heater – current condition of the secondary heater
Cooler ->
Cooler – activation of cooler function
Cooler – cooler current condition
The control system is equipped with additional function: sauna/replace. This additional function can be access on the HMI programming
device main screen as well as connectors/digital inputs (Sauna Di4/Fireplace Di5).
Sauna function turn ON activates both fans in accordance with the
„Max” mode output during a specied time interval.
Fireplace function turn ON deactivates air exhaust fan for a given time interval. When the Fireplace function is active the air supply
temperature sensor acts as the master sensor of temperature control.
When the time interval passes, the function is automatically turned of
Sauna/replace ->
Sauna/replace – activation of Sauna/Fireplace function
Sauna – setting of duration of Sauna function
Fireplace – setting of duration of Fireplace function