Schwank ThermoControl Plus 4M, Руководство по эксплуатации и установке

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6.5 Exhaust fan connection
Only 24VAC Class 2 equipments can be connected to the controller ! Use 24VAC Class 2
rated power relays to connect exhaust fan that is operating with higher than extra low voltage.
The ThermoControl Plus is provided with a exhaust fan control. The outputs of two heating
zones belong to one common exhaust fan control. For example: terminal 10-11 is the common
exhaust fan control for heating zones 1 and 2.
In case one (or both) heating zone outputs are activated, the exhaust fan control will be
activated as well. If both heating zone outputs switch off, the exhaust fan also switches off
immediately or with delay, after a preset period of time (chapter 5.2).
In case single-stage heaters are divided into two heating zones and one zone is switched off,
the exhaust fan goes on due to the still active second heating zone (chapter 4.1.2). If no
exhaust fan is installed or connected the exhaust fan control can be locked (chapter 5.2).
6.5.1 Air-proving contact inputs
In case of active exhaust fan control (see: 5.2 set up), air-proving is also active:
The contact inputs (terminals 74-79) will block the operation of the respective heaters if the
contact is open. The contacts have 30 seconds after the start of the fans to get in closed state,
or else an error indication is generated (see chapter 6.11) and maintained until the contact is
closed. If the contact gets open during operation, the heaters will be turned off immediately, and
an error indication is generated. In case there is a exhaust fan, but no air-proving contact, the
contact input of the controller must be short-circuited.
6.6 Alarm contact input
Connect potential-free contact to this input. The contact must be provided by extra low
voltage Class 2 rated equipment. If the
dry
contact is interrupted, the controller
turns off all heaters and exhaust fans independently. At the same time „ERROR” starts to blink
on the front panel and the „ALr” symbol appears on the display. In case the contact is not used,
you have to short-circuit the terminals.
6.7 Remote-Control
Connect
dry
contact
s
to this input.
The contact must be provided by extra low voltage Class 2 rated equipment.
The feature Remote-Control
access
can be selected in the SETUP-Menu
(
5-2). The controller switches
to daytime mode in all zones, if the remote contact is activated. The display shows the
symbol. In case of
n
ot using the remote contact, you have to short-circuit the
terminals.
6.8 Signal input fault
Connect
dry
contact
s
to this input. The fault signal must be provided by extra low voltage
Class 2 rated equipment.
The feature contact input fault can be selected in the SETUP-menu (5-2). The external error
message can be connected to input terminals 72-73. In case of an error message (option) the
signal ERR and RES as well as ERROR light begins to blink. At the same time the Error relay
switches on. The operation mode of the controller is not changed due to the error signal.
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If the remote contact is activated it is not
possible to change the operating mode by
using the
FIX
button. A warning signal
"rE.c" (remote contact) appears on the
display.