HDS 9/16-4 ST Gas HDS 9/16-4 ST Gas LPG HDS 12/14-4 ... - Kärcher

!
– The heating appliance of the machine is an ignition plant.
Please follow the local regulations while installing it.
– A main switch that can be locked is to be installed at a safe
and easily accessible place to switch off the entire heating
unit.
– Use only certified chimneys/exhaust pipes.
Danger
Scalding danger! This symbol must be displayed in each bleeder
area.
Generall rules for gas
– The installation of gas pipes as well as the gas-side connections
of the appliance should only be done by a company specialised
in gas and water installations.
– Settings and repairs to the gas burner should only be carried
out by trained Kärcher Customer Service Technicians.
Gas pipes
– There should be a manometer and a locking valve in the gas
pipe that should have a minimum diameter of 1 inch.
– Due to the vibrations caused by the high pressure pump, the
rigid gas pipe must be connected to the appliance using a
flexible gas hose.
– For gas pipes that are nmore than 10 m in length, the diameter
must be 1 1/2 inch or more. The gas connection to the appliance
has a diameter of 1 inch.
Danger
While attaching the flexible gas hose to the burner, the connection
nipple must be held with a fork key SW 36. The connection
nipple should not get twisted vis-a-vis the burner casing. The
threaded connection should only be sealed using a sealant approved
by DVGW. After connection, check the joint using a
DVGW leak-search spray to ensure that the joint is leakproof.
The width of the gas pipe must be calculated according to DVGW
TRGI 1986 or TRF 1996. The diameter of the gas connection to
the appliance does not automatically become the diameter of the
pipe connection. The dimensioning and installation of the gas
pipes must be done according to the corresponding norms and
regulations.
36 English
Installing the plant
Only for authorised technicians!
General
Replace high pressure
nozzle with
steam nozzle if working
temperature is
above 100 °C.
Gas appliances without flow controller where all parts of the exhaust
system that are subjected to excess pressure are free of
combustion air. The B23 installation opens new options of connecting
the appliance to a traditional single-draught chimney according
to DIN 18160 and operating it depending on the air
conditions in the room. The only requirement is that the chimney
must be suitable for being connected to combustion devices (i.e.
it has been cleaned by inserting a stainless steel pipe).
Figure 9
Ventilation / exhaust system
Gas appliances with an exhaust system that sucks out the
combustion air from the installation room
Type B23
Gas appliance with an exhaust system that removes the
combustion air into the open via a closed system
Type C33
Gas appliance with combustion air supply and exhaust system
placed vertically over the roof. The inlets are located almost
close to each other in the same pressure range.