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Sales/Spares & Replacement Help Line 01604 762881
1.
FEATURES
Appliance Classification:
The QuanTec Combi has been tested
and CE certified by B.S.I Ltd for use with
NATURAL Gas G20.
2.
GENERAL DESCRIPTION
2.1
The QuanTec Combi appliance is a high efficiency combination boiler, designed to provide both central heating
and domestic hot water on demand. It’s design is room sealed, taking combustion air from outside and expelling
the products of combustion back to the outside.
Standard features include full sequence automatic spark ignition, low water content stainless steel heat exchanger,
automatic bypass and boiler frost protection, a daily pump and divert valve exercise.
Variable CH and DHW temperature controls are fitted on the user control.
• Central heating (CH) output is fully modulating with a range of 30C is 4.58 to 25.6kW, and 24C is 4.83 to 18.48kW
• Instant domestic hot water (DHW) output is also fully modulating with a maximum of 30C is 30.3kW, and 24C is
24.8kW
2.2
When no demand for CH, the boiler fires only when DHW is drawn off.
When there is a demand for CH, the heating system is supplied at the selected temperature of between 45°C and
82°C, until DHW is drawn off. The full output from the boiler is then directed via the diverter valve to the plate heat
exchanger to supply a nominal DHW draw-off on the 30C is 12.31l/min and the 24C 10.1l/min at 35°C temperature
rise.
The DHW draw off rate specified above is the nominal that the boiler flow regulator will give. Due to system
variations and seasonal temperatures DHW flow rates/temperature rise will vary, requiring adjustment at the draw
off tap.
At low DHW draw-off rate the maximum temperature is limited to 65°C by the modulating gas control.
The boiler features a comprehensive diagnostic system which gives detailed information on the boiler status when
operating, and performance of key components to aid commissioning and fault finding.
FEATURES
1
Rain Trap
2
Flue Sensor
3
View Port
4
Heat Exchanger
5
Ignition/Detection Electrode
6
Flow Thermistor Sensor
(behind return)
7
Return Thermistor Sensor
8
Combustion Air Fan
9
Condensate Trap
10
DHW Water Temperature Sensor
11
Diverter Valve
12
Control Panel
13
Gas Valve
14
DHW Filter & Flow Regulator
15
Pump
16
CH Water Pressure Sensor
17
Automatic Air Vent
18
Pressure Relief Valve
19
Burner Injector
20
Venturi
21
Expansion Vessel
22
Central Offset Flue Adapter
FIGURE 1. QUANTEC COMBI FEATURES
FIGURE 1 QUANTEC COMBI FEATURES
2
12
1
3
21
22
20
19
17
16
15
14
4
5
7
6
9
8
13
11
10
18
