GB.BlueBox.180415
Swegon reserves the right to alter specifications.
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BT1
MF2
BT40
BT50
G20
G10
BT10
MF10
Modbus
0-10 V
GOLD
Supply
air
Swegon
chiller
AQUA Link
AYC
See the func-
tion guide for
the AYC.
Comfort
modules
3.2 Control of cooling energy to the GOLD
and comfort modules via the Swegon
chiller and AQUA Link
3.2.1 Control of cooling energy to the GOLD
The cooling capacity of the supply air is controlled via valve
actuator MF2 and an module (extra regulation
sequence function, see separate instructions for the TBIQ
module) preset for cooling (0-10 V). Cooling can
be activated in the hand-held terminal of the GOLD air
handling unit (see the Operation and Maintenance Instruc-
tions for the GOLD).
3.2.2 Control of cooling energy
to the comfort modules
See the function guide for All Year Comfort (AYC).
3.2.3 Swegon chiller and AQUA Link
Communication with the chiller can be activated under
Functions in the hand-held micro terminal of the GOLD
unit. See Section 5.
Communication with AQUA Link takes place via the
IQlogic
+
module (function selector switch set to 5) which
controls and manages alarms from pump G20. The
module is located in the AQUA Links cubicle.
The chiller’s water temperature setpoint is controlled by
the GOLD unit and is determined by the cooling load in
the ventilation system. The temperature setpoint from
the AYC function is compared with the ordinary cooling
supply air setpoint and the lowest value of these is trans-
mitted as a setpoint to the chiller.
Circulation pump G20 located inside the AQUA Link is
started and stopped via the GOLD unit. When the GOLD
unit is in operation and valve MF2 or MF10 is open more
than 5%, circulation pump G20 starts up.
Optimisation function active:
Applies to the supply air cooling setpoint.
To ensure the best functionality when the optimisation
function is activated, the value for cooling diff. (2 K*)
should be set to the same value as that set in the chiller,
see Section 5.
If the temperature by temperature sensor BT40 (reference
water) is within 2K* from the refrigerant temperature
setpoint and if it has been so during a continuous period
of more than 60 seconds* the optimisation function is
allowed.
If the optimisation function is allowed and valve MF2 is
fully open (100%*) the controller decreases the refriger-
ant temperature setpoint at a rate of 0.3K/minute*.
If the optimisation function is allowed and valve MF2 is
open less than 80%*, the controller increases the refriger-
ant temperature setpoint at a rate of 0.6K/minute*.
* Factory setting. The value can be changed.
