Detection Systems 7090i Instrukcje Operacyjne Pobierz pdf (Strona 36)

Troubleshooting

Troubleshooting AQUATOP LOGON WP

Malfunction

Cause

Remedy, Action

223: HP when starting HC

High pressure malfunction

when starting heating circuit.

A Water in system too cold. A Below 10 °C: Increase temperature in system

with electr. immersion heater.

224: HP when starting potable

water heating

High pressure malfunction

when starting PWH.

Service water operation.

A Boiler charging pump/3-way valve not running

B Air in system

C Slider closed

D Heat exchanger too small

E Sensor positioned incorrectly (too low)

A Unblock pump/3-way valve or replace

B Vent system

C Open slider, check flap valve

D Check with retailer

E Mount sensor correctly

226: Coil guard compressor A Phase interrupt (compressor is getting hot) A Check all three phases (wait until

coil guard has cooled down, this may take

several hours).

225: Low pressure malfunction Low pressure compressor E9

Low pressure pressure controller triggered in

cooling circuit.

A Insufficient flow of brine-water in evaporator

B Leak in cooling circuit

C Pressure controller defective

D Plugged filter

E Defective or blocked injection valve

F Incorrect amount of coolant

A1 Blocked brine pump, make brine pump

function again

A11 Defrost thickened brine in evaporator

(remove insulation, use hairdryer to melt or let

sit for 1 day)

A2 In case of inhomogeneous brine mixtures, the

brine may become thickened in the evaporator.

A21 Better mixing of brine

B If all items above have been checked and of the

compressor switches to low pressure malfunction

within a few seconds after being started, then the

cooling circuit has a leak.

Oil residues in the unit are another indicator of a

leak in the cooling circuit (do not mistake oil for

brine).

B1 In case of a leak in the cooling circuit,

the cooling service technician must be called.

C Check switching point (important: depends on

coolant type)

D Measure temperature upstream and downstream

of filter (AT max 2 K)

E Check or replace injection valve

Check and insulate sensor

F Empty and recharge acc. to type plate.

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