Electrical Connection; Connecting The Zone Sensors - Trane ZN. LonWorks control Manual

Electrical connection

All electrical connections have to be
made on the terminal blocks of main
electrical control box.
Warning: Disconnect the power
supply before making electrical
connections. Failure to do so may
cause serious accidents as well as
irreversible damage to certain
electrical components (motors,
relays, etc..).
Warning: Use copper conductors
only. Unit terminals are not designed
to accept other types of wiring.
Aluminium or other materials could
lead to galvanic corrosion or

Connecting the zone sensors

Installation preparation -location of thermostats
Warning: Do not install thermostats near or above a source of heat (i.e. direct sunlight, hot lamps or radiator).
Thermostats should be installed at least 1.5 m above floor level.
Figure 13 - Zone sensor only
A = TH01 only
TH01: Ref. 35168530-001
TH02: Ref. 35168531-001
Recommended cable size: 2 pairs 0.9mm²,
maximum 60m
If TH01 + 1 pair 0.9mm², capacitance 72±6pf/m
max, maximum 60m.
It is possible to connect a return air sensor to
TH01 and 02 thermostats.
In this case it is necessary to disable the air
sensor included in the thermostat and
connect the return air sensor as indicated in
Figure 14.
26
Installation
overheating at the contact point thus
damaging the unit. The customer's
electrical connections must comply
with current standards. Fan coils
manufactured by Trane comply with
CEI regulations. The changeover
sensor must be installed on the
installation's entering water piping
(responsibility of the installer).
The factory-mounted electrical
heaters are fitted with a safety device
that prevents them functioning if the
fan breaks down. All faults must be
reported to the maintenance
department.
Figure 14 - Zone sensor + return air sensor
A = TH01 only
1 = Zone sensor
2 = Return air sensor: Ref 35168528-001
- - - - - Customer wiring
Recommended cable size: 2 pairs 0.9mm², maximum
60m
If TH01 + 1 pair 0.9mm², capacitance 72±6pf/m max,
maximum 60m
It is possible to connect an area occupancy sensor or any
device having a free potential contact to the control
proceeding as indicated in Figure 15.
Warning: If an electric heater is
connected by an installer, operation
of the electric heater must be
subordinated to operation of the fan.
CNT-SVX13B-E4