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9.7 Cooling
Control of cooling units is primarily wired to Outp.1 or Outp. 2. If
none of these outputs are vacant, connect the control means to the
IQnomic Plus module. The module's function selector switch must be
set to Position 6.
9.7.1 Operation
Activate the cooling function.
9.7.2 Cooling Regulation (Control)
Stepless 0-10 V DC
Used when variable cooling control is connected. The GOLD air
handling unit's cooling controller modulates a 0-10 V DC signal that
is linear with the cooling load. Connect to the IQnomic Plus module,
terminals 15-16.
Both the cooling relays of the air handling unit operate in parallel
with the signal and are energised when the cooling signal exceeds
0.5 V DC and are de-energised when the signal drops below 0.2 V
DC.
The output for Cooling Relay 1 is connected to IQnomic Plus termi-
nals 1-2 and for Cooling Relay 2 to terminals 4-5.
Stepless 10-0 V DC
Same as above, but the control signal is inverted where a 10 V
output signal means a 0 % cooling load.
On/off, 1 step
Used if cooling in one step is connected. Connect to the IQnomic
Plus module, Cooling relay 1, terminals 1-2. The cooling controller of
the air handling unit regulates the cooling load at 1-100%. Cooling
relays 1 and 2 are energised when the cooling load exceeds 5 % and
are de-energised when the cooling load is less than 2 %.
The 0-10 V DC control signal output operates in parallel with the
0-100 % cooling demand and can be used for indicating the cooling
demand, for instance. Connect to the IQnomic Plus module, termi-
nals 15-16.
On/off, 2 steps
Used when cooling in 2 steps is connected. Connect to the IQnomic
Plus module, Cooling relay 1, terminals 1-2, and Cooling relay 2,
terminals 4-5. The cooling controller of the unit regulates the cooling
demand at 0-100 %.
Cooling relay 1 is energised when the cooling load exceeds 5 % and
is de-energised when the cooling load is less than 2 %. Cooling relay
2 is energised when the cooling load exceeds 55 % and is de-ener-
gised when the cooling load is less than 50 %.
The 0-10 V DC control signal output operates in parallel with the
0-100 % cooling demand and can be used for indicating the cooling
demand, for instance. Connect to the IQnomic Plus module, termi-
nals 15-16.
On/off, 3 Steps - Binary
Used when cooling with two inputs controlled with three binary steps
is connected. Connect to the IQnomic Plus module, Cooling relay 1,
terminals 1-2, and Cooling relay 2, terminals 4-5. The cooling con-
troller of the unit regulates the cooling demand at 0-100 %..
On an increasing cooling load:
Cooling relay 1 is energised when the cooling load is above 5 % and
is de-energised when the cooling load is between 40-70 %. Cooling
relay 2 is energised when the cooling load is above 40 %. Cooling
relay 1 is energised again (together with cooling relay 2) when the
cooling load is above 70%.
On a decreasing cooling load:
Cooling relay 1 is deenergised when cooling load is below 60 %, it
is energised again when cooling load is below 30 % and is deener-
gised again when cooling load is below 2 %. Cooling relay 2 drops
when cooling load is below 30 %.
The 0-10 V DC control signal output operates in parallel with the
0-100 % cooling demand and can be used for indicating the cooling
demand, for instance. Connect to the IQnomic Plus module, termi-
nals 15-16.
32
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INSTALLATION
FUNCTIONS
*FUNCTIONS*
TEMPERATURE
AIR FLOW/PRESSURE
FILTER
OPERATION
HEATING
COOLING
HUMIDITY
IN/OUTPUTS
IQnomic Plus
ALL YEAR COMFORT
OPTIMIZE
On a decreasing cooling load:
Cooling relay 1 drops when cooling load is below 60 %, it is
energised again when cooling load is below 30 % and drops again
when cooling load is below 2 %. Cooling relay 2 drops when
cooling load is below 30 %.
The output for 0-10 V DC control signals (terminals 42-43) opera-
tes in parallel with the 0-100 % cooling load and can be used for
indicating the cooling demand, for instance.
Settings for cooling functions on this page and the next :
Value
Operation mode
Cooling regulation
Periodic operation
Cooling relay 1
Cooling relay 2
3 min.
Interval
Regulation speed
between steps
Outdoor temperature limit
Step 1
Step 2
Step 3
Restart time
Cooling min air flow
Supply air
Extract air
Neutral zone
Cooling BOOST
Start limit in
connection to
min supply air temp
Ramp time
We reserve the right to alter specifications without notice.
GB.GOLDLP.170830
* COOLING *
OPERATION MODE
COOL REGULATION
PERIODIC OPERATION
REGULATION SPEED
OUTDOOR TEMP LIMIT
RESTART TIME
COOL MIN AIR FLOW
NEUTRAL ZONE
COOLING BOOST
Setting
Factory
range
settings
Inactive/active Inactive
Stepless 0-10 V On/Off 1 step
Stepless10-0 V
On/Off 1 step
On/Off 2 step
On/Off 3 step binary
Inactive/pump/ Inactive
pump+valve/valve
Inactive/pump/ Inactive
pump+valve/ valve
Exercise period 1 – 60 min.
1 – 168 hrs.
24 hrs.
0-600 sec
300 sec
0-25 °C
3 °C
0-25 °C
5 °C
0-25 °C
7 °C
0-900 sec
480 sec
0-Max flow
–
0-Max flow
–
0-10 °C
2.0 °C
Inactive
Inactive
Comfort
Economy
Sequence
Comfort+economy
Economy+ sequence
2-10 °C
3 °C
0.5-15%
2.5%
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