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External connections diagram
Connecting to the power supply
Control cabinet
Accessory unit electric/
oil-fi red boiler
Heat pump
Open
Open
E4: Heating cable in draining pipe, accessory
G1: Pump for heating system
G2: Heat carrier pump
Q1: 3-way valve, accessory
Q2: Mixing valve, accessory
K: Contactor any electrical additional heat in the hot water heater
Do1: Starting additional heat (oil-Þ red boiler/electric element). PLEASE NOTE:
Maximum relay output load, 1800W resistive, 600W inductive, cos ϕ >0,4.
At greater loads, an intermediate relay must b installed, not included.
S4: Switch emergency operation. Pre-installed switch connected by installer if
the function is required.
H1: Any additional heat alarm
T1: Flow sensor
T2: Outdoor sensor
T3: Hot water sensor, accessory
T5: Room sensor, accessory
Optima 600-1100, Optima 1400-1700
Close
NOTE! If the emergency operation
function is to be used, the electric
element’s overheat protection must
have a built-in thermostat.
Safety switch not included.
Optima 600/900/1100: 10A
Optima 1400/1700: 16A
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