Vaillant ecoTEC plus 937 Instructions For Installation And Servicing

ecoTEC plus 937 installation and maintenance manual10
2.5 Functional description
1
2
3
4
14
13
12
6
7
8
9
11
10
16
17
15
20
19
18
5
c
b
a
Fig. 2.5 Sequence diagram
Key
1 Exhaust gas
2 Heat exchanger
3 Combustion chamber
4 Water condensate siphon
5 Expansion vessel
6 Operating display
7 Secondary heat exchanger
8 Automatic air vent
9 Pump
10 Pressure relief valve
11 Diverter valve
12 Gas valve
13 Fan
14 Compact thermal module
15 Shift load storage tank electronics
16 storage charging pump
17 Aqua-Sensor
18 Stainless steel storage tank
19 Storage tank insulation
20 Expansion vessel
NTC sensors shift load storage tank
a Storage tank sensor
b Infeed sensor SWT
c Storage tank charging sensor
2 Unit description, data and dimensions

Vaillant ecoTEC plus 937 Specifications

General

Model	ecoTEC plus 937
Category	Boiler
Type	Combination
Output	37 kW
Dimensions	720x440x338 mm
Mounting	Wall-mounted
ERP Efficiency Rating	A
Fuel Type	Natural Gas
Flow Rate	15.2 l/min
Hot Water Flow Rate	15.2 l/min at 35°C temperature rise
Gas Type	Natural Gas
Warranty	5 years
Efficiency	94%
DHW Output	4.0 - 37.0 kW