Rittal SK 3209. Series, Руководство по сборке и эксплуатации

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18 Rittal air/water heat exchanger assembly instructions
6 Operation
EN
6 Operation
You can operate the air/water heat exchanger using
the controller on the front of the unit (Fig. 1, no. 3,
page 5). Depending on the model, the unit is
equipped with a Basic or Comfort controller.
6.1 Control using the Basic controller
For unit types SK 3209.1xx and SK 3210.1xx.
Fig. 17: Basic controller
Legend
1 Controller trim panel
2 Temperature setting
3 LED green (“line”)
4 LED red (“alarm”)
5 Reset button
6.1.1 Properties
– Three voltage variants are supported:
– 115 V
– 230 V
– 400 V, 2-phase
– Integral start-up delay and door limit switch
function
– Monitoring of all motors (fans)
– Visualisation of the operating status via LED
display:
– Voltage on, unit operational
– Door open (only if door limit switch installed)
– Warning of overtemperature
– Switching hysteresis: 5 K
– Floating system message contact in case of over-
temperature
– Temperature setting
(setting range 20 – 55°C) via potentiometer
– Test function
The air/water heat exchanger operates automatical-
ly, i.e. after switching on the power supply, the fan
(see page 5, Fig. 2) will run continuously and perma-
nently circulate the internal enclosure air. The mag-
netic valve controls the cooling water flow as speci-
fied by the temperature setpoint. The built-in Basic
controller ensures automatic normal shut-down
operation of the air/water heat exchanger by the
value of the fixed preset switching difference of 5 K.
3 4
1
2
5