3
General information and characteristics
IMPORTANT: Read the entire instruction manual before
starting the installation.
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For trouble--free installation, which should be carried out
by a qualified installer, follow the installation chart
sequence.
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Follow all current national safety code requirements. In
particular ensure that a properly sized and connected
ground wire is in place.
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After installation, thoroughly test the system operation
and explain all system functions to the owner.
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Leave this manual with the owner for consultation
during future periodic maintenance.
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Dispose of packaging material in accordance with local
requirements.
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The manufacturer denies any responsibility and warranty
shall be void if these installation instructions are not
observed.
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Inspect equipment.
For damage due to improper
transportation or handling, file an immediate claim with
the shipping company.
Do not
install or use damaged
units.
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In case of any malfunction, turn the unit off, disconnect
the main power supply and contact a qualified service
engineer.
WIRING
The Room Controller will be capable of controlling from 1 to 6
Fan Coil Units.
The total run length of the wire connecting the Room Controller to
the FCUs should be kept to under 500 feet (150 m.).
Only daisy chain wiring will be allowed (See Figure 1).
The Room Controller will connect to the receiver board connection
on the electronic board inside the unit.
REMOTE
FCU 6
FCU 3
FCU 2
FCU 1
Fig. 9 – Daisy Chain Wiring (Multidrop)
POWER
The thermostat will be powered by unregulated 12.5 volts DC
nominal (10V min. to 20V max) which is provided by the
electronic board inside the unit.
The power consumption will be 50mA 12.5 volts DC.
For applications where more than one FCU is to be controlled, the
FCU closest to the Room Controller will be the only one that
supplies power to the Room Controller.
The control should be protected from damage if accidental
miswiring of power, ground and signal.
Choosing the installation site and Installation
Room Controller Location
The Room Controller can be located anywhere. However, if the
installation requires the system in the location to use the air sensor
on the Room Controller; then, the controller should be mounted:
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Approximately 5 ft. (1.5 m) from floor.
Fig. 10 – Minimum Clearances
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In the same area where the unit is located, preferably on
an inside partitioning wall.
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On a section of wall without pipes or duct work.
If the air sensor on the Room Controller has been selected, it
should
NOT
be mounted:
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Close to a window, on an outside wall, or next to a door
leading to the outside.
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Exposed to direct light and heat from a lamp, sun,
fireplace, or other temperature--radiating object which
may cause a false reading.
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Close to or in direct airflow of a heating or cooling
supply.
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In areas with poor air circulation, such as behind a door
or in an alcove.
Maximum of 500 ft. (150 m) of total network wiring.
33MC
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RC
