Salus ERT30 UP Instruction Manual page 57

INTERNAL UNIT SETTINGS
To change the internal settings, open the unit's
casing as shown in the INSTALLATION section
and slide the switches to your desired setting:
SW 1 Setting (Switch 1)
COOL Cooling system on HEAT Heating system on
ON/OFF On/Off mode
Disable VP is off
OFF
SW1 ON
COOL HEAT
On/Off
PWM
Disable VP
SW2
A A&F F
PWM PWM mode
VP VP is on
GB
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