Technical data

Spec Sheet
PYROT Rotation Heating System
Installation, closed system
KÖB Holzfeuerungen GmbH, Flotzbachstr. 33, A-6922 Wolfurt, Tel. [phone], Fax 65707, E-Mail: [e-mail]
Subject to technical changes
6960-2
2007-08-13_E
- To reliably prevent boiler corrosion caused by condensation of exhaust gases, the boiler return flow temperature must
not under any circumstances be below 65°C. A boiler circuit pump with a boiler mixer should be provided according
to the diagram for this purpose. The boiler circuit should be designed such that the temperature difference between
the forward flow and the return flow is equal to or less than 15°C.
- For integrating heat consumers, see Spec Sheet 4000.
- The expansion tank has to be connected to the boiler above the boiler forward flow and without any shut-offs.
b) Safety-relevant equipment included in the scope of performance provided by the installing
heating engineer
M 20 Boiler pump
Y 20 Boiler mixer
SV Safety valve, pressure set to max. 3.0 bar, homologated component as per DIN 3440
Nominal width of the valve, of the connection line and of the exhaust pipe as per DIN 4751 Part 2
TS131 Thermal run-off safety valve R ¾”, homologated component; special-purpose design for opening
temperature 100°C, (safety heat exchanger built into boiler). With the Pyrot-400 and Pyrot-540, two safety
heat exchangers in parallel are required but only one thermal run-off safety valve.
KW Cold water inlet, min. 2.5 bar, max. 3.5 bar
WMS... Water level control device, homologated component; required in Germany starting from systems over 350
KW, Installation recommendation: WMS with magnetic transmission of the float movement to a switch unit
EL Air separator (recommendation: absorbition-type degasser)
ExH... Expansion tank closed, with design certification; for heating system
(Recommendation: connect on cool return flow, connected to the boiler via the forward flow without any
blockage units)
ExS… Expansion tank closed; with design certification; for safety heat exchanger, max. 4.0 litres, 10 bar
DAZ Pressure indication device (pressure gauge)
TAZ Temperature indication device (thermometer)
c) Design recommendation
Mode
l
KPT-
Boiler circuit
(VL, RL, BP)
Thermal
run-off
safety valve
TS-131
(quantity)
Water
through-put
required at
2.5 bar
Accumulato
r volume
3)
Supply
line ZL
Drain
pipe
AL
2)
Safety valve
model SV
68M
1)
Safety line
SL
2)
100 NW 40 1 620 l/h 1500l R ¾“ R 1“ R 1” NW 32
150 NW 50 1 915 l/h 1500 l R ¾“ R 1“ R 1” NW 40
220 NW 50 1 1230 l/h 2200 l R ¾“ R 1“ R 1” NW 40
300 NW 65 1 1500 l/h 2500 l R ¾“ R 1“ R 1 ¼” NW 50
400 NW 80 1 1880 l/h 3200 l R ¾“ R 1“ R 1 ¼” NW 50
540 NW 80 1 2266 l/h 4300 l R ¾“ R 1“ R 1 ½” NW 65
1)
Threaded connection for supply line
2)
Length of the exhaust pipe up to 4.0 m (for longer lines, see DIN 4751 Part 2)
3)
On request, we will be glad to provide a project-based offer on the accumulator(s).
d) Equipment recommendation from KÖB's delivery programme
- Note: The equipment below will only be supplied via the installing heating engineer.
Model
KPT-
Designation: Description: Item no: See Spec
Sheet:
TS 131 Thermal run-off safety valve, 100°C
K-TS-131
4500
100 M 20 Grundfos pump UP 32-80, 400V
1)
ZPS-328-4
4600
150 M 20 Grundfos pump UP 32-80, 400V
1)
ZPS-328-4
4600
220 M 20 Grundfos pump UPS 40-60 4F, 400V
1)
ZPS-406-4
4600
300 M 20 Grundfos pump UPS 50-60 4F, 400V
1)
ZPS-506-4
4600
400 M 20 Grundfos pump UPS 50-60 4F, 400V
1)
ZPS-506-4
4600
540 M 20 Grundfos pump UPS 65-60 4F, 400V
1)
ZPS-656-4
4600
100 Y 20 Motor-three way valve, VXG 48.80/SQS 35.00
ZV-3-40
4600
150 Y 20 Motor-three way tap, VBF 21.50/SQK 33
ZH-3-50
4600
220 Y 20 Motor-three way tap, VBF 21.50/SQK 33
ZH-3-50
4600
300 Y 20 Motor-three way tap, VBF 21.65/SQK 33
ZH-3-65
4600
400 Y 20 Motor-three way tap, VBF 21.80/SQL 33
ZH-3-80
4600
540 Y 20 Motor-three way tap, VBF 21.80/SQL 33
ZH-3-80
4600
1)
For ∆t 15K, as per illustration
Any additional resistors (heat meters, slide valve) require redesigning of the boiler pump!