Spec
Sheet
General
Terms
of
Delivery
Installation, open system
Köb Holzheizsysteme GmbH, Flotzbachstr. 33, A-6922 Wolfurt, Tel. +43/5574/6770-0, Fax 65707, E-Mail: office@kob.cc
Subject to technical changes
3950-4
2009-03-01_GB
a) Safety equipment provided by the installing heating engineer
TS...
Thermal run-off safety valve R ¾", homologated component, opening temperature 95-100°C,
(safety heat exchanger built into the burner)
This is not prescribed for open systems. However, we recommend installing one.
KW...
Cold water inlet DN 15 R ½", metal, fixed pipework, min. 2.5 bar, max. 3.5 bar
TSL...
Exhaust pipe, thermal run-off safety valve R ¾", (NW 20)
ExO...
Expansion tank, open, at the topmost point of the facility, thermally insulated;
DAZ...
Pressure gauge (manometer)
TAZ...
Temperature indicator (thermometer)
b) Burner circuit with open expansion and storage circuit
Boiler
KPM-DYN
Burner circuit pump M20
Make: Wilo model
Modulating valve Y20
Make: Siemens Model
Forward flow
(VL)
Return flow
(RL)
Bypass (BP)
Safety valve
Model SV 68 M 1)
Safety line SVL
2)
45 EAS
30/6-3-PR-180-12-I
VXG48.32/SQS35.00
NW 40
R ¾ "
NW 25
65
TOP-S 30/7 EM
VXG48.32/SQS35.00
NW 40
R ¾ "
NW 25
85
TOP-S 30/7 EM
VXG48.40/SQS35.00
NW 50
R 1"
NW 32
c) Designation of the motors, sensors and safety switches
Motors:
Electrical probes and sensors:
M1
Exhaust blower
B1G.1
Transmitter light barrier for embers (opposite slide-in
module)
M2
Feed auger
B1G.2
Receiver light barrier for embers (on slide-in module side)
M12
Primary air vent, manual
B1
Exhaust gas sensor PT-100
M12.2
Primary air vent, automatic
B02
Temperature sensor for feed auger PT-100
M13
Secondary air vent
B2.1
Transmitter light barrier for feed auger
M16
Ignition device
B2.2
Receiver light barrier for embers
M20
Burner circuit pump
B20
Burner sensor KTY 10/6
Y20 Modulating
valve
B20.1
Return circuit sensor QAZ 21.5220
B26
Lambda
sensor
U26
Measuring transducer lambda sensor
Safety switches:
Accumulator with storage management:
N21.1 Temperature-limiting
safety switch
Y28
Accumulator valve
S2
Safety limit switch
Maintenance lid for feed auger
B28.1
B28.2
Heat storage sensor, top
Heat storage sensor, centre
B28.3
Heat storage sensor, bottom
d) Recommended design for accumulator,
V
SP
The hydraulically switched heat storage tank has the following advantages:
-
Gentle control in automatic operation (increased efficiency, minimal emissions in practical operation)
-
Higher performance peaks are possible for the consumers
-
Log operation is possible (see Operating Instructions)
Recommended volume, V
SP:
PYROMAT-DYN
Minimum V
SP
[litres]
Recommended V
SP
[litres]
45 700
1000
65 900
1500
85 1100 2000
