3
Réf. : CI - 389 - C
2 - 2 "S" type
Manual control through boiler thermostats (10)
3
5
6
4
1
12
13
10b
10a
•
Lit when the boiler is ON
• On
O
: Burner off
• On
I
: Burner on-off under control of boiler thermostats (10)
• On
∆∆∆∆∆
: Momentary burner and limit thermostat (13) operation control
• 6.3 AT
• Displays flue gas temperature at boiler outlet
• Displays boiler water temperature
• Controls boiler-water temperature (setting range : 30 to 90° C). Temperature
increases according to index figures
• Set the 2nd stage thermostat (on the right) to the required boiler temperature
• Set the 1st stage thermostat (on the left) at about 5 to 10íC above this setting
(about one figure on the index)
Example : -
2 nd stage thermostat on 75° C
-
1 st stage thermostat between 80 and 85° C
• Lit when thermostat (13) is activated after abnormal increase in boiler water
temperature. The burner is stopped.
• Factory set at 110° C (manual reset)
Power ON light
Swicht
Burner ON/Off
"Test" function
Safety fuse
Flue gas thermometer
(option)
Boiler thermometer
a - Boiler thermostat, 1 st stage
b - Boiler thermostat, 2 nd stage
Boiler safety warning light
Boiler limit thermostat
1
3
4
5
6
10
12
13
2 - 3 Heating boiler alone with an “ECOCONTROL” panel
2 - 3 - 1 Refer to the instructions delivered with the latter
Summary of Contents for CHAPPEE NXR4
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