Table of Contents
Advertisement
14 | Appliance Layout and Hydralic Diagrams
Function diagram, ZWC 18/24/28-3 MFK – Ceraclass Excellence
Fig. 11
3
Testing point (injector pressure)
4
HT3
6
Temperature limiter for heat exchanger
6.2
Combustion chamber NTC
6.3
Temperature sensor for hot water
7
Testing point for gas supply pressure
8.1
Manometer
11
Bypass
14
Funnel trap (accessory)
15
Safety valve (CH system)
18
Central heating pump
20
Expansion vessel
26
Valve for charging with nitrogen
27
Automatic air vent
29
Injector jets
30
Burner cover
32
Flame sensing electrode
33
Igniter electrodes
34
Hot water pipe
35
Heat exchanger
36
CH temperature
14
43
CH flow
44
Hot water flow
45
Gas inlet
46
Cold water inlet
47
CH return
48
Discharge
53
Pressure regulator
55
Filter
56
Gas Valve
57
Safety valve 1
57.1
Safety valve 2
63
Adjusting nut for max. gas inlet flow volume
64
Adjusting nut for min. gas inlet flow volume
69
Control valve
84
Stepper Motor
88
3 Wav valve
355
Plate Heat Exchanger
411
Combustion chamber
413
DHW flow meter (turbine)
441
Pressure compensation opening
478
Silencer
479
Flow regulator
6 720 660 238 (2008/07)
- Quick Links:
- Contents
- Symbols
- Failure Display
- Error Codes
Hide quick links:
Advertisement
Table of Contents
Need help?
Do you have a question about the ZWE 24-5 MFA and is the answer not in the manual?
Questions and answers
מה צריך לעשות כשהמכשיר מראה c4
When the Junkers ZWE 24-5 MFA shows error code C4, follow these steps:
1. Check APS hoses: Ensure they are not damaged, blocked, or have condensation.
- If damaged or blocked, turn off the appliance, clean and dry the hoses, then switch it back on.
- If C4 is still flashing, proceed to step 2.
2. Check 20-poled connection cable: Inspect for damage.
- If damaged, change the cable harness and switch on the appliance.
- If C4 is still flashing, proceed to step 3.
3. Check APS functionality: Verify if it is working.
- If APS is not working, further investigation or replacement may be needed.
Following these steps should help diagnose and resolve the C4 error.
This answer is automatically generated