Stulz C7000 - Page 129

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© STULZ GmbH – all rights reserved EN/06.2019/G57
C7000 INSTRUCTIONS fOR A/C UNITS
Zone operation
A zone operation can be established in the shape that an A/C unit without Ecocool louver system and an A/C
unit with Ecocool louver system (ECO LS) are assigned to a zone. The unit with ECO LS will be started whereas
the unit without ECO LS will stay in standby.
In the unit without ECO LS an overload start must be configured so that the unit with out ECO LS will be
switched on in addition when the room air temperature setpoint is exceeded by an adjustable temperature
difference.
In contrast to stand alone operation, other fan speeds are effective when zone operation is combined with the
Ecocool function.
Operation with Free cooling top FCP
The A/C unit can be equipped by the option Free Cooling Top FCP.
The free cooling top contains a filter for the external air. The filter is
equipped by a differential pressure switch, which can be connected
at a digital input of the controller to indicate a filter alarm in case of a
clogged filter. It can also be set that the filter alarm releases a com-
mutation to circulation operation.
By setting the parameter "ACTIVE"
➊ on 1 the filter is configured in
the C7000.
The common alarm parameters can be set for the filter (differential
pressure switch).
Alarm parameters:
- Common alarm release
➋
- Digital input ➍
- Alarm priority ➎
- Alarm delay ➏
Moreover you can determine, whether the unit shall commute to
circulation operation (circulating air louver fully opened, fresh air/
exhaust air louver fully closed) in case of a filter alarm (set parameter
"action" on "1").
➌
nmaxZone can be set in Config/Zone.
Mode Stand alone Zone oper.
FC nmax nmaxZone
EFC until 100% until nmax
MIX 100% nmax
DX/CW 100% nmax
lter conf 1
lter commonalarm 1
lter alarmact 1
lter alarm 1
lter alarmprio 19
lter alarmdelay 5
Operate
Config
.../Components/Air/Filter ext.
.../Components/Air/Filter ext.