Product Description; Product Design - Vaillant flexoTHERM exclusive Installation And Maintenance Instructions Manual

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Table Of Contents

Table of Contents

–

Max. refrigerant circuit pressure: 4.60 MPa (g) (46.00 bar

(g))

–

Waiting period: 5 minutes (after the first occurrence)

–

Waiting period: 30 minutes

(after the second and every further occurrence)

The fault counter is reset if both of the following conditions

are met:

–

Heat requirement without switching off prematurely

–

60 minutes of uninterrupted operation

3.3.7

Hot gas thermostat in the refrigerant circuit

The hot gas thermostat shuts down the heat pump if the tem-

perature in the refrigerant circuit is too high. Following a wait-

ing period, the heat pump attempts to start once more. After

three failed start attempts in succession, a fault message is

displayed.

–

Max. refrigerant circuit temperature: 135 ℃

–

Waiting period: 5 minutes (after the first occurrence)

–

Waiting period: 30 minutes

(after the second and every further occurrence)

The fault counter is reset if both of the following conditions

are met:

–

Heat requirement without switching off prematurely

–

60 minutes of uninterrupted operation

3.3.8

Safety cut-out (SCO) in the heating circuit

If the temperature in the heating circuit of the internal elec-

tric back-up heater exceeds the maximum temperature, the

safety cut-out shuts down the electric back-up heater as a

securing measure. Following a waiting period, another at-

tempt is made to start the electric back-up heater. A fault

message is displayed that can only be reset by pressing the

Reset button or by switching the heat pump off and on again.

–

Max. heating circuit temperature: 85 ℃