Remeha Selecta
2
TABLE OF CONTENTS
Preface
5
1 General
requirements
6
2 Appliance
introduction
7
2.1
Central Heating Control
7
2.2 Working
principle
9
2.3
Combi boiler operation
9
2.4
Advanced boiler control (‘abc’- control)
9
3 Dimensions and technical data
10
3.1 Dimensions
10
3.2 Technical
details
12
3.3
General Specifications
13
3.4 Optional
Accessoiries
14
4 Installation
instructions
15
4.3
Boiler mounting
15
4.3.1 Clearance
requirements
15
4.1 General
15
4.2
Boiler positioning
15
4.3.2 Mounting
frame
16
4.3.3 Wall
bracket
17
4.4
Flue gas discharge and air supply
17
4.4.1
Flue terminal positions
18
4.5
Type of arrangement in connection with flue gas discharge
19
4.5.1
Single boiler, concentric room sealed flue
19
4.6 Installation
data
21
4.6.1 Condensate
drain
21
4.6.2 Water
treatment
21
4.6.3
Safety valve discharge
22
4.6.4
Expansion vessel
22
4.6.5 Circulation
pump
23
4.6.6
Heating Water flow
24
4.6.7 Water
connections
24
4.6.8
Filling the system/ make up water
26
5 Gas
connection
26
5.1 Gas
connection
26
5.2 Gas
pressures
26
5.3
Gas/air ratio regulation
26
