Gas Connection; Connections For The Air And Exhaust Pipes; Classification - REMEHA Calenta 25s Installation And Service Manual

4. Installation
4.7

Gas connection

4.8

Connections for the air and exhaust pipes

Type Execution
B23 Open
(1)
B23P
B33 Open
C13 Closed
(1) Including the pressure classification P1
(2) EN483: 0,5 mbar suction by pressure reduction
(3) An under pressure of 4 mbar is possible
(4) See table for minimum sizes of duct or sleeving
32
1. Remove the anti-dust plug located on the gas connection GAS/
2. Connect the gas inlet pipe.
3. Mount a gas isolation valve on this pipe, directly under the boiler.
4. Connect the gas pipe to the gas shut off valve.
T001575-B
4.8.1.
The table specifies this classification in detail according to [.
Description
Without fire-stop approval.
4
Exhaust of combustion gases above the roof.
4
Air in the installation room.
4
Without fire-stop approval.
4
Common exhaust of combustion gases above the roof.
4
Common exhaust of combustion gases mixed in the air, air in the installation room (special
4
construction).
Vent in the outside wall.
4
The opening for the air-supply inlet is located in the same pressure zone as the vent (For
4
example, a common passage through the outside wall).
GAZ under the boiler.
WARNING
Close the main gas valve before starting work on the
4
gas pipes.
Before mounting, check that the gas meter has
4
sufficient capacity. To do this, you should keep in
mind the consumption of all domestic appliances.
If the gas meter has too low a capacity, inform the
4
energy supply company.
CAUTION
Ensure that there is no dust in the gas pipe. Blow into
4
the pipe or shake it before mounting.
We recommend installing a gas filter on the gas pipe
4
to prevent clogging of the gas valve unit.
Connect the gas pipe in accordance with prevailing
4
standards and regulations.
¼ The boiler is suitable for the following types of flue
gas connections. See chapter: "Certifications", page 7

Classification

Calenta 25s - 28c - 35s - 40c
040412 - 7600585-01