Danfoss Optyma Plus, Инструкции по применению

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Installation
4.3.1 Emergency running
without controller
In case of controller failure, the condensing unit
can still be operated when the controller standard
wiring (WD1) is modified into a temporary wiring
(WD2) as described below.
This modification may be done by authorized
electricians only. Country legislations have to be
followed.
Disconnect the condensing unit from power
supply (turn hardware main switch off).
• Contact of Room Thermostat must be possible to
switch 250VAC.
• Remove wire 22 (safety input DI3) and wire 6 (fan
supply) and put them together. A fan pressure
switch (e.g. KP5) or a fan speed controller (e.g.
XGE) can be connected in series to wire 6.
• Remove wire 10 (drive start) and wire 24 (room
thermostat) and put them together.
• Remove wire 11 (drive start) and wire 25 (room
thermostat) and put them together.
• Remove wire 53 and 55 from drive terminals and
connect the attached 10kOhm potentiometer
(R8) as below:
wire 1 to drive terminal 55
wire 2 to drive terminal 53
wire 3 to drive terminal 50
• Turn the knob of the potentiometer to middle
position, which corresponds approximately
compressor speed 50rps.
• Remove wire 14 (crankcase and oil separator
heaters) and connect it to the compressor
contactor terminal 22.
• Remove wire 12 (supply crankcase and oil
separator heaters), extend this wire by using an
250 Vac 10mm² terminal bridge and 1,0mm²
brown cable and connect it to compressor
contactor terminal 21.
• Remove the large terminal block from the
controller terminals 10 to 19.
• Connect the condensing unit to power supply
(turn hardware main switch on).
• Adjust the potentiometer to get the desired
speed.
• Replace the controller as soon as possible.
20
FRCC.PC.044.A6.02
Application Guidelines