Robur G 30, Инструкция по установке, эксплуатации и обслуживанию

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Electrical installer
Installation, use and maintenance manual – Next-G
41
4
is open. In any case, the "HEAT." contact must be
closed for power selection to be active. If the
"HEAT." contact is open, closing the "VENT." contact
causes activation of the summer ventilation mode.
The cable may not be longer than 20 metres.
Figure 4.9
Gas unit heater power level selector switch
connection
Z9 External request (e.g. thermostat, timer, switch, ...)
A Gas unit heater power level selector switch
•
Closed contact: gas unit heater at maximum power
• Open contact: gas unit heater at minimum power
L N
AUX OUT
VENT. HEAT.
RESET
L N
AUX OUT
Z9
J60
A
4.4.8.3
Operation as destratifier
For all Next-G gas unit heaters, it is possible to connect an
optional temperature probe, suitably positioned, to allow
operation of the appliance's fan only (with the burner off),
for thermal destratification.
In this way, if the temperature measured by the probe is
higher than the threshold set in the gas unit heater pa-
rameters (Paragraph 5.4 p. 48), it will start the fan only,
which will push the mass of hot air towards the heated
room without any gas consumption.
The connection of the temperature probe for the destrati-
fier function is described in Paragraph 4.5.2 p. 43.
4.4.8.4 Control of multiple gas unit heaters with a
single external request
Through a suitable connection to the terminals described
above, it is possible to manage the specific function on
more than one gas unit heater using a single external
request.
In the case of centralized management of multiple gas
unit heaters start/stop, advice given is to use:
▶
OCDS008 digital chronothermostat (described in
Paragraph 1.7.7
p. 22), up to 10 gas unit heaters.
▶
The OCDS015 Modbus remote control (described in
Paragraph 1.7.2
p. 21), up to 30 gas unit heaters.
▶
OSWR000 Genius software (described in Paragraph
1.7.8
p. 23), up to 100 gas unit heaters.
If you do not want to use these solutions, the central-
ized management of start/stop can be done as described
in Figure 4.10
p. 42, using a programmable timer. The
supplied room probes serving each gas unit heater allow
the gas unit heater to be activated only when the specific
zone actually needs heat, avoiding wastage of energy. The
programmable timer allows subordinating the gas unit
heater activation, even if requested by the room probe, to
a centralized request.