Index
A
air humidity 16
air pressure switch 13 ambient conditions 15 ambient temperature 16
B
brand names 3
C
concentric connections 24 condition
gas valve open 39 heat demand 39 power on 39
connect
air supply 22 circulation piping 21 cold water side 21 condensation drainage 21 diagram 20
electrical 19
flue gas discharge 22 gas 25
hot water side 21 isolating transformer 30
contents of document 9
conversion to another gas category 33
D
descale 50 device
general operation 11 heating cycle 12 security 12
types 9,17 dimensions 18 drain 37
E
electrical circuit diagram 54 electrical connection 28 electrical connector block 29 error 43
F
fan 13 fill 43
floor loading 16
G
gas control 13 gas smell 7 general data 3 general operation 11
H
heat demand 39 heating cycle 39
I
in operation 39 index 57 installation engineer 8 ionisation detection 13 isolating transformer 30
L liability 3
M
main switch 30 mains voltage 30 maintenance
burner 50 carry out 49 complete 50 condensation drainage 50 gas side 50
heat exchanger 50 prepare 49 scale 50
water side 50 maximum floor loading 16
N
notation system 9
P
packaging 15
parallel connections 26 power cable 30
protected cold supply setup 14 protection against freezing 41 purge afterwards 53
Instruction manual TWI | 57 |
