10 Termo JOHANNA
The layout shown is an example of how to create a system complying with the regulations: make
sure to use safety devices such as pressure and temperature relief valves as well as the open
expansion tank.
2.5 Room ventilation
M - delivery F 1”
R - return F 1”
P - hole for probe pocket F ½ “
S - drain F ½ “
1st CIRCUIT
heating
A - delivery M 1”
B - delivery M 1”
2nd CIRCUIT
DHW
C - delivery M ½ ”
D - delivery M ½ ”
Water system Supply
E – connection M ½ “
Water drain in overpress. – temp.
F – connection M ¾ “
(G)
External circuit to be created at the customer's premises
Vc = volume of water in combustion chamber
Vt = volume of water in pipes
Vv = volume of water in expansion tank Vv = 0.05 (Vc + Vt)
H > pump ( H greater than head h of circulating pump)
KEY - WOOD-BURNING STOVE SYSTEM
1) Drain cock
9) Filling cock or float valve
2) Heating chamber/circuit air vent 10) Heating chamber filling pipe 1”
3) Thermal relief valve T>95°C 11) Safety and vent pipe 1”
4) Safety valve P max. 3 bar
12) Shutoff cock
5) Delivery manifold 1”
13) Electric circulating pump
6) Return manifold 1”
14) Non-return valve
7) System-door box
(SA) Room temperature probe
8) Open expansion tank
(ST1) delivery temperature probe
(ST2) return temperature probe
KEY - DHW AND HEATING SYSTEM
(20) System shutoff cock
(30) Boiler shutoff cock
(21) Filter in line
(31) Water storage boiler 80-115 L
(22) Hydraulic manifold
(32) Supplementary heater
(23) Zone solenoid valve
(33) Filling and safety assembly
(24) Radiator
(34) Distribution manifold
(25) Heating equipment
(35) Sink with mixer
(ST1) zone temperature probe 1 (36) Bathtub with taps
(ST2) zone temperature probe 2 (37) Shower with mixer
(STB) Boiler temperature probe
Fig 2 Example of plumbing system
Wood-burning heating chamber
