Index - A.O. Smith TWI - 35-130 Installation, User And Service Manual

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
CO -value 30
2
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
Instruction manual TWI 35-130 G/TWI 45-190 G

Index

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
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
burner 50
carry out 49
complete 50
condensation drainage 50
gas side 50
heat exchanger 50
prepare 49
scale 50
water side 50
59