British Gas 330, Инструкция по использованию, установке и обслуживанию

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0020008877-04
10 Commissioning
Diagram 10.4
RETURN
PIPE
OVERHEAT
THERMOSTAT /
RESET SWITCH
FLOW
PIPE
11404
IF
T
H
E
S
E
A
L
I
S
B
R
O
K
E
N
T
H
E
G
A
S
S
U
P
P
L
Y
M
U
S
T
,
W
IT
H
O
U
T
E
X
C
E
P
T
IO
N
,
B
E
C
A
P
A
B
L
E
O
F
D
E
L
IV
E
R
IN
G
3
1
k
W
O
U
T
P
U
T
Diagram 10.5 POTENTIOMETERS
12372
SERVICE
POTENTIOMETER
12357
CONTROLS
FASCIA
USER
INTERFACE
RETAINING
LATCHES
Diagram 10.3
PRESSURE TEST
POINT
ELECTRICAL
PLUG
Diagram 10.2
VENT POINT
GAS
VALVE
FLOW
PIPE
OVERHEAT
THERMOSTAT
THROTTLE
OFFSET
ADJUSTMENT
FLOW
THERMISTOR
RETURN
THERMISTOR
11404
12412
10.9 Pump Exercise Program
After a power cut or every 24 hour in frost setting/summer mode
the pump will run for one minute to prevent it from sticking. This
will also occur during normal operating if there is no demand for
more than 24 hours
10.10 Frost Protection
The boiler has a built in frost protection programme as long as
the electricity and gas are left switched on.
This device operates the burner and system pump when the
temperature inside the boiler falls to 3
0 C.
When the temperature inside the appliance reaches 10
°
C the
burner will shut down and after a short period the pump will stop.
This device primarily protects the boiler. Any other exposed
areas of the system should be protected by a separate frost
thermostat.
PMAX
POTENTIOMETER
AND SECURITY SEAL
WARNING
LABEL