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nuaire.co.uk
30. 11. 15. Leaflet Number 671710
12.1 SUPPLY
The control is powered by a 240VAC supply. This must be isolated local to the unit and fitted with
appropriate overcurrent and fault protection.
ELECTRIC HEATER SUPPLY
For models with electric heating, the heating circuit is powered by a separate, higher current, 240VAC
supply. This must be isolated local to the unit and fitted with appropriate overcurrent protection. The main
supply is still required.
*Electric Heater models require two separate supplies, each with an appropriate overcurrent current
protection device.
12.2 VOLT FREE CONTACTS
Note that the volt free contacts are not fused. If these are used to power any external equipment, the
installer must provide adequate fusing or other protections.
These contacts are rated at 3A resistive, 0.5A inductive.
Run connections - The relay is powered when the fan is running. (These contacts are used when an I/O
damper is installed. See damper section 5.2 for details)
Fault connections
- No fault = the relay is powered.
Fault
= the relay is unpowered.
Heat demand
- the relay is powered when heating is selected.
Cool demand
- the relay is powered when cooling is selected.
12.3 SWITCHED LIVE
Switch Live (SL) terminal - A signal of 100-230V a.c. will activate the switched live signal.
Switch Live 2 (SL2) terminal - A signal of 100-230V a.c. will activate the switched live 2 (Fan Boost) signal.
Note that a signal from an isolating transformer will produce an unpredictable result and is not
recommended.
Volt free versions of the switched live signals are also available at terminals T33-T34 & T35-T36. Link two
contacts to activate the signal.
12.4 DAMPER CONNECTIONS
A fan start delay can be imposed to allow the damper time to open. This is adjustable via display screens or
commissioning tools.
If an I/O damper is fitted, it must be wired to the fan run relay, and the relay supplied with the relevant
supply voltage.
See I/O Damper connection diagram for details.
12.5 NETWORK SETTINGS
XBOXER XBC
ECOSMART (CO) MODELS
12.0 ELECTRICAL DETAILS
ELECTRICAL SUPPLY DETAILS
Unit
Main Circuit
Electric Heater Circuit (FLC)
Code
(FLC)
(Electric Models Only*)
XBC10-H-*CO
3.2 A
13 A
XBC15-H-*CO
4.5 A
13 A
XBC25-H-*CO
8 A
19 A
XBC45-H-*CO
8 A
19 A
XBC55-H-*CO
8 A
38 A
XBC65-H-*CO
8 A
38 A
The electrical wiring must
be carried out by competent
persons, in accordance with good
industry practice and should
conform to all governing
and statutory bodies
i.e. IEE, CIBSE, COHSE etc.
Default MS/TP Address: 4
BACnet Instance Number: Randomised &
Unique for each controller (0 to 4,194,304)
(MS/TP)
Summary of Contents for ecosmart CONNECT XBOXER XBC
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