Draining / Emptying The System; Emptying The Heating Circuit - ComfortZone RX35 User And Installation Manual

ComfortZone RX35/RX50/RX65

9.4 Draining / emptying the system

When draining the system, the main switch must always be in the off position.
Emptying of hot water tank.
Close incoming water (1).
Loosen the hose (2) and place its end against the floor drain.
Open drain valve (3) as well as one or more drain valves in the housing and allow
the water to flow into the drain.
NOTE!
The main power must never be switched on unless the system is filled with water.

9.5 Emptying the heating circuit.

Open ¼" of the bottom plug (4) that is concealed on the back of the gauge
package. Connect a suitable ¼" connector with hose and connect the end of the
hose to the floor drain.
Open the appropriate coupling in the housing so that the water flows into the drain.
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service & maintenance