Mark FBA - Connecting Heating Supply Cables; Air Valve and Drain Valve Installation

8
4.5 Connecting cables
Do not turn the connector
(This will destroy the heat exchanger. No warranty.)
Attach the heating supply lines to the supply & return of the
heat exchanger with a suitable tool. Make use of a gate valve
for the heat exchanger so you can easily reach this during
later maintenance work.
Remove the protective caps from the connecting lines.
Note: The connection of any bends should be done before the mounting of the device.
Note: Connect the discharge and feed as on the following photos.
Frost protection of the heat exchanger
When decommissioning the frost protection thermostat should be connected to the air outlet side
of the heat exchanger.
4.6 Air valve and drain valve
When using an air valve, you must make sure that it is mounted at the highest point. Attach the
drain valve to the lowest point in the supply line, so a complete emptying is possible. For the drain
on the heat exchanger, see chapter 11.02. Blow the drain valve with compressed air to empty it
completely.
Note! After loosening the screw (completely), apply sealant to the threads and tighten the screw
again.
discharge
supply
discharge
supply
supply
discharge
suppl
y
discharge
supply
discharge
supply
discharge
FB-A VFB-A H1 FB-A H2
FB-A Ultra
FB-A Ultra plusFB-A Ultra