GB.GOLDSK509.091101
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6.3 Switch clock
Basic functions for the switch clock can be preset
at INSTALLATION LEVEL under FUNCTIONS/OPERA-
TION and the values can be read and set at USER
LEVEL.
tIMe/Date
The current date and time can be set and adjusted whenever
required.
The switch clock automatically takes leap years into considera-
tion.
Automatic changeover between summer time/winter time to EU
Standard has been preset.
This changeover function can be blocked at INSTALLATION LEVEL
under FUNCTIONS/OPERATION.
tIMe CHanneL
Times and days can be set when the unit is to run at high speed,
low speed or be stopped.
Eight different time channels can be set. If the same in-operation
times are to apply every day of the week (Mon-Sun), you need
only program one time channel. Different operation times for
each day of the week can be programmed by programming a
time channel for each day (Mon-Fri, Sat-Sun or Mon, Tues, Wed,
etc)
The time can be set as 00:00-00:00 if the deviating in-operation
period is desirable for the entire 24 hours period.
YeaR CHanneL
The year channels make it possible to set deviating in-service
times for parts of the day during certain parts of the year. Eight
different year channels (yearly time schedules) can be set. The
year channels over-modulate the time channel during the hours
of the day and the days that the year channel is active. The year
channel dates indicate the dates between which the year chan-
nel shall apply and the year channel hours indicate the hours of
the day between which the year channel will steer the controller
to operate the rotary heat exchanger at a specified speed. Other
times within the year channel still apply to that time channel.
The time can be set as 00:00-00:00 if the deviating in-operation
period is desirable for the entire 24 hours period.
Functions for summer night cooling, prolonged operation, etc.,
operate also when the year channel is active.
6.4 Filters
(and anti-frosting function of rotary heat exchanger)
6.4.1 Readings
When reading of filter status the first value shows current pres-
sure and the second value shows current alarm limit.
6.4.2 Calibration - Filters
The filters should be calibrated for the first time in conjunction
with commissioning, when the duct system, air devices and
eventual adjustment plates have been fitted and adjusted; after
that every time the filter media are changed.
Calibration should be activated for both the supply air and the
extract air if both filters are changed or for only for one airflow
direction if only one filter has been changed.
When filter calibration is enabled, the air handling unit operates
in the high speed or max. speed mode (depending on the func-
tionality selected) for approx. 3 minutes.
SWITCH CLOCK
*SWITCH CLOCK*
TIME/DATE
TIME CHANNEL
YEAR CHANNEL
Settings:
Value
Setting
Factory
range
setting
TIME/DATE
Day
Mon-Sun
Automatic
Time
00:00-23:59
Current
Date
Day/Month/Year
Current
TIME CHANNEL 1-8
Operation
Low speed/High speed* High speed
Time
00:00-23:59
00:00-00:00
Period
Not active
Not active
Mon, Tues, Wed etc
Mon-Fri
Mon-Sun
Sat-Sun
YEAR CHANNEL 1-8
Operation
Not active
Not active
Stop/Low sp./High sp.
Time
00:00-23:59
00:00-00:00
Period
From Day/Month/Year 01/01/2005
To Day/Month/Year
01/01/2005
*) Shows Stop/Low speed/High speed if this function is selected
at INSTALLATION LEVEL under FUNCTIONS/OPERATION.
FILTERS
*FILTERS*
ReaDInGS
CALIBRATION
*FILTERS*
READINGS
CaLIBRatIOn
*FILTER CALIBRATION*
STD.FILTER
PREFILTER
HEAT EXCHANGER
After the filters have been calibrated, a pressure rise of up to 100
Pa is permissible (=as the filters arrest impurities). Higher pressure
will cause the fouled filter alarm to trip.
The alarm limit can be changed at INSTALLATION LEVEL under
ALARM SETTINGS.
The filter function must be activated in order to make it pos-
sible to obtain filter calibration and alarm functions in GOLD SD
supply air and extract air handling units, see Section 8.4, Filters.
6.4.3 Calibration - Rotary Heat exchanger
If the anti-frosting function accessory for heat exchanger
is installed (see 8.5.1.1) calibration can be selected from
this menu.
When calibration R-HX is activated the fans are acceler-
ated to high speed for about 3 minutes.