45
PRINCIPLE DIAGRAM
BM
Modulating coil
CA
Ignition control unit Honeywell
CiR
Circulating pump
EC
Control electrode
ES
Spark electrode
L
Line
MAX R
Max. heating setting
N
Neutral
PF
Fumes pressure switch
Pma
Lack of water pressure switch
PR
Reset push-button
P.risc.
Heating potentiometer
PS
Hot water pressure switch
P.san.
Hot water potentiometer
RT
RL3 relay contact
RS
R4 relay contact
RP
RL2 relay contact
RF
Anti-interference resistance
SB
Lock-out warning light
SR
Heating detector
SS
Hot water/water-heater detector
SW1
Function selector
TIMER
Boiler timer adjustment
TR1
Transformer
TST
Total safety thermostat
V
3-way valve
VG
Gas valve
VN
Fan
LEGEND
NOTE: Slow ignition (RLA) is of the mechanical type positioned on the gas valve as illustrated in the figure on page 65.
92
EXPULSIÓN/ASPIRACIÓN
1
Concéntrico para terraza
2
Tiro forzado (B22) para conducto
3
Ramificados, para conductos separados
4
Concéntricos, conexiones a conductos concéntricos
5
Tiro forzado (B22) para techo
Consulten las
normas vigentes
por lo que respecta a la colocación y a las distancias de los terminales de tiro
desde las puertas, ventanas, etc....
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