Viessmann 301.BS090, Инструкции по установке и обслуживанию для подрядчиков

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57
Selection air conditioning
Cooling selection
09:47:27
Direct
Cylinder
SW
OT
Ext.
0-10 V
Cooling zone 1
Cooling zone 2
Cooling zone 3
Regulated
Regulated
The cold water can be charged with a fixed set value or
according to a cooling curve. If no selection is made, the system will charge
to the lowest set value of the circuits!
Free cooling
Fig.41
"SW" (set value)
■ The value for the coolant buffer cylinder and cooling
circuits is set to a fixed value.
■ Set values are adjusted on the detail screens (of the
coolant buffer cylinder and the cooling circuits).
"Set
value" is displayed in each case
■ If "Direct" is selected, "Set value direct" appears in
the centre of the system overview.
"OT" (outside temperature)
■ The coolant buffer cylinder and the cooling circuits
are brought to a temperature calculated from the out-
side temperature and the adjustable cooling curves
■ For adjustment of the cooling curves, see page 72.
"Ext. 0-10 V" (external output signal)
■ The set value for the coolant buffer cylinder and
cooling circuits is specified by an external analogue
signal (0 V = -10 °C, 10 V = 73 °C; the range is limi-
ted based on the remaining configuration).
"Direct"
■ No separate cooling circuits, no cylinder
"Cylinder"
■ Cooling circuits with cylinder, active and natural cool-
ing
"Natural cooling"
■ This means natural cooling only without "Cylinder"
■ If "Cylinder" is selected, automatic natural cooling is
also possible. The system switches to natural cool-
ing, source temperature permitting.
"Cooling circuit 1-3"
■ Here you can set the number of installed cooling cir-
cuits.
■ Installed cooling circuits appear on the system
screen.
"Regulated"
■ A mixer must be installed for every regulated cooling
circuit
■ The cooling circuit has its own cooling curve or its
own set value
■ If a circuit is also able to provide heating, a choice
between cooling or heating can be made; it is not
possible to select both.
Commissioning, inspection, maintenance
Commissioning the system
(cont.)
5549 991 GB