27
When a heating/cooling changeover switch is connected be-
tween the room thermostat and the water flow control valve,
the changeover between heating and cooling modes takes
place automatically in accordance with the following diagram.
BLUE
BROWN
BROWN
RED
BLACK
ACTUATOR FOR
COOLING VALVE
CHANGEOVER
∆:
Differential: 11,1 K ± 3,3
CM: Cooling mode
HM: Heating mode
θ:
Water temperature in °C
FM