Fitting Information For Steam And Condensate Hoses; Heater Bank Information; Steam Valve For High-Pressure Steam - Indirect; Hot Water - Miele PDR 914 Operating And Installation Instructions

Installation
Fitting information
for steam and con-
densate hoses
Heater bank infor-
mation
Steam valve for
high-pressure
steam – indirect
70
 The appliances must not be connected to a hot oil circulation
system.
- Ensure that the hoses are not twisted or compressed.
- Do not use steam and condensate hoses to compensate for gas
lines.
To avoid damage to the heater bank the following must be observed
during commissioning:
- In order to avoid unnecessary heat variations, ensure that heating is
even (do not allow sudden bursts of steam).
- In order to avoid corrosion, the feed water must be processed. In
particular, when the appliance is not in operation, it is important to
ensure that no air or CO
separator must be installed such that when the system is not oper-
ating, the heater bank is completely emptied. This means that no
condensate may remain in the heater bank. The installation of an in-
verted bucket condensate trap is recommended.
- The heater bank must be protected from aggressive gases.
- The entire heating system must not operate at a higher pressure or
temperature than specified on the data plate.
- All appropriate regulations, standards, and legislation from responsi-
ble authorities related to the installation and operation of heating
and ventilation systems (in particular for the operation of the heat
exchanger) must be observed.
Requirements profile:
- Pneumatic or servo-controlled
- Connection to ½" coupling
- Flow coefficient of at least 3 m³/h for water
- Media temperature at least 365°F (185°C)
- Operating voltage 230 V / 50 – 60 Hz
- Closed when de-energized
- Electrical connection for 1/4" (6 – 7 mm) cable diameter
 Once the appliance has been connected, re-install all the hous-
ing parts that were removed.

Hot water

 The hot water connection may only be carried out by an autho-
rized or trained/certified technician.
In addition to these installation instructions, the information from
the data plate, wiring diagram, and documentation accompanying
the appliance must also be noted and complied with when connect-
ing hot water-heated Miele appliances.
can enter the system. The condensate
2