Vaillant ecoMAX pro 18E, Instructions For Use Installation And Servicing

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Instructions for Use, Installation and Servicing ecoMAX pro
33
Fault finding 16
No. Description Comments 18E 28E Action
1 Central heating maximum output Set minimum to maximum product output (kW) 18 28 adjustable
2 Flue system pressure loss No function adjustable
3 Minimum temperature for Set minimum temperature 38 38 adjustable
Central Heating (22°, 28°, 38° or 50°C)
4 Maximum temperature for Set maximum temperature 80 80 adjustable
Central Heating (50°, 73° or 80° C)
5 Pump mode selection 1 – When room stat on (continuous) 1 1 adjustable
2 – When burner on (not continuous)
3 – Winter position/under floor heating (continuous)
6 External sensor ‘slope’ No function adjustable
7 External sensor ‘offset’ No function adjustable
8 Burner override Gas rate/CO
2
0 – normal 0 0 adjustable
combustion check 1 – burner to Pmin
2 – burner to Pmax
Immediately communicated to the main board,
and reset to 0 after 15 minutes
9 Cylinder with NTC No function – however if altered to ‘1’ = ON fault adjustable
code 8 will be displayed ‘tank NTC fault’
10 Adaptive heating or night-day switch No function adjustable
11 Night-day setpoint (Delta value) No function adjustable
12 Central heating flow temperature °C Read only
13 Central heating return temperature °C Read only
14 Domestic hot water temp. No function Read only
15 Tank temp. No function Read only
16 DHW flow No function Read only
17 Extractor speed Extractor speed, RPM x 100 Read only
18 Burner demand power kW Read only
22 User interface revision No function Read only
23 Product code Code reference for ecoMAX pro 149 141 Read only
24 Min. fan speed RPM x 100 (800 – 6,000) 12 12 Read only
25 Max. fan speed RPM x 100 (2,000 – 6,000) 41 57 Read only
26 Fan speed during ignition 60 – 100% 80 60 Read only
29 Running hours Flame presence hours stored in E2prom every 2hrs Read only
30 Running hours Read only
31 Fault memory* Memory 1 Read only
32 Memory 2 Read only
33 Memory 3 Read only
34 Memory 4 Read only
35 Memory 5 Read only
36 Fault memory reset Memory can be reset by pressing ‘+’ and +/-
‘-‘ together