Connecting Boilers To The Electric Network; Wiring Diagram Of Electromechanical Regulation With Extraction Ventilátor, Type Ucj 4C52 (Dc18S - Dc40Se) And With Pressure Ventilátor (Dc80, Dc7Os, Dc22Sx - Dc40Sx) - Atmos C15E Instruction Manual

Chart 1
Flammability classes of building
materials and products
A – non-combustible
B – non-easily flammable
C1 – low degree of flammability deciduous tree wood (oak, beech), Hobrex boards, plywood, Sirkolit, Wer-
C2 – medium degree of flamma-
bility
C3 – high degree of flammabil-
ity
In circumstances when there is a risk of temporary access of flammable gases or fumes, or
during works when a temporary fire or explosion risk may possibly occur (such as gluing
linoleum, PVC etc.) the boilers must be put out of operation long enough before the risk
occurrence. No items from flammable materials may be placed on the boilers or near
them for a distance lower than the specified safe distance.

12. Connecting boilers to the electric network

Boilers are to be connected to a 230 V, 50 Hz electric network with electric cord with or without plug.
The network connection is of the M type and when replacement is needed the service company must
use the same type connection to replace it. Product must be placed in such way that the plug is acces-
sible to operators (as per ČSN EN 60335—1/1997). Connection may only be carried out by a person
qualified in compliance with all valid regulations of the particular country.
13. Wiring diagram of electromechanical regulation with ex-
traction ventilátor, type UCJ 4C52 (DC18S – DC40SE)
and with pressure ventilátor (DC80, DC7OS, DC22SX
– DC40SX)
16-GB
Instruction manual - GB
Building materials and products categorised by their flammability class
(selected from Czech standard ČSN 730823)
granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproofing
plasters etc.)
Akumin, Izomin, Heraklit, Lignos, basalt felt boards, fibreglass boards,
Novodur
zalit, hardened paper (Formica), Ecrona)
coniferous tree wood (pine tree, larch, spruce), chipboards and cork boards,
rubber flooring (Industrial, Super)
fibreboards (Hobra, Sololak, Sololit), cellulose materials, polyurethane,
polystyrene, polyethylene, foamed PVC
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