Auxiliary Relays And Contactor Function - REMKO EMT 100 Assembly And Operating Instructions Manual

8.6

Auxiliary relays and contactor function

Auxiliary Function
relays
K1C Activation of the flow monitor
K2A Setting the heat pump demand to OFF
with a flow fault
K2B Contactor terminal K8 shut-off (second
level electric heating, 3 kW) with flow fault
K3 Setting the heat pump demand (com-
pressor). Compressor ON, if K3 is deacti-
vated and contact on the control board is
closed.
K4 Setting the cooling release. Cooling ON if
K4 has activated and contact on the con-
CN 51.2
trol board is open.
K5A Actuation of the switching valve for the 2nd
heating source
K5B Makes the zero potential contact available
for the demand of the 2nd heating source
K6 Electric heating contact, level 1 (6 kW)
K7 Release of a fault of the outdoor unit and
issue of the fault message "Heat pump
fault" in the display of the heat pump man-
ager (contact opening input E2)
K8 Electric heating contact, level 2 (3 kW)
K9 Switching on of the charging pump in the
indoor module parallel to the output
cooling circulating pump/switching valve
K10 Enabling of the fault input E2 of the heat
pump manager ("Heat pump fault" contact
opening input E2) after the indoor unit
charging pump was switched on.
K11 External error message
Use ...
... in emergency
heating mode (Manual
mode)
... in normal operation
(Automatic mode)
... in normal operation
(Automatic mode)
CN 83.1 und 83.2
... in normal operation
(Automatic mode)
CN 51.1
... in normal operation
(Automatic mode)
... in normal operation
(Automatic mode)
... in normal operation
(Automatic mode) and
in emergency heating
mode (Manual mode)
... in normal operation
(Automatic mode)
... in emergency
heating mode (Manual
mode)
... in cooling mode
(Automatic mode)
... in normal operation
(Automatic mode)
... in normal operation
(Automatic mode)
Found in the circuit
diagram ...
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