Troubleshooting
Maintenance
(cont.)
1.
2.
3.
Fig. 52
Draining the boiler on the heating water side
A
Fig. 53
1. Close the shut-off valves on the heating water side.
3. Open drain valve
and drain the boiler as much
A
as required.
2. Route hose at drain valve
into a suitable con-
A
tainer or drain outlet.
95