Installing The Fitting Assembly - Viessmann VITOMAX 200-HS M73A Installation Instructions Manual

Fitting the test and control equipment

Installing the fitting assembly

Fill the U-bend of fitting assembly E
with water and mount on the boiler front
panel.
The fitting assembly offers the following
connections:
■ 1 or 2 pressure regulators A (option-
ally with cap valve)
■ 1 maximum pressure limiter C
(optionally with cap valve)
12
(cont.)
Note
Illustration of the fitting assembly refers
to staged operation.
For modulating operation, two pressure
regulators are replaced by one pressure
transducer.
■ 1 pressure gauge B with test valve
and 1 drain valve
■ 1 additional connection D.