UWT circulation heat exchangers
10
Unit description
YAWE0029 / 29 June 2018
3.5
Temperature display, controller and safety devices
The circulation heat exchanger can be switched on and off externally via contacts on the signal connect-
or 15N.
The units are equipped with a two-state controller on which the set-point temperature of the bath circuit
can be set. The momentary actual temperature can be read off the green, three-figure digital display.
At the configuration level an overtemperature alarm threshold can be set (
6.2).
When this value is exceeded, the light-emitting diode K 2 (next to the temperature display) and the red
overtemperature warning lamp illuminate. This signal is also output on a contact on the remote socket
15N.
The bath level is monitored by a float switch. A yellow warning lamp is switched on if the level is too low.
With a low level or overtemperature in the bath the pump is not switched off!
The mains feed cable is protected inside the unit by one or more safety fuses.
The pump is switched of by a winding temperature detector or overcurrent circuit breaker.
3.6
Interfaces (remote socket 15N)
The following signals (at mains voltage level) are provided on the remote socket 15N: (Pin 4) Unit On,
(6) Temperature too high and (5) Low water level. The unit can be switched off via the Pins 1 and 3.
3.7
Substances / materials in the liquid circuits
All of the parts which come into contact with the heat transfer liquid or the coolant are made of: stainless
steel, brass, copper, buna EPDM, PVC, polyamide, silver solder.
Suitable heat transfer liquids or coolant are water and glycol/water mixture.
Summary of Contents for UWT 10000
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