andrews CWH30/100 Installation Manual, Operation And Maintenance Manual page 32

SECTION 3
CWH HEAT
EX CHANGER
CONFIGURATION
CONTROL
PANEL
Fig . 11
30
INSTALLATION
1 2 1
CWH 30 CWH 60
The operational status of the water heater can be seen and the desired temperature can
be set on the control panel (Fig.11).
Mains On
Indicator
Temperature
Diagnostic Code
Status
0 - Standby
1 - Heat Demand
- Circulation
Pump On
A green and a red LED can be found on the control panel for each burner module.
These indicate the status of the corresponding burner module.
The green LED:
- off no automatic burner detected
- flashing automatic burner detected, burner module not in use
- on burner module in use
The red LED:
- off no fault
- flashing blocking fault
- on locking fault
The display on the control panel consists of 3 segments, the following codes can appear:
Code Meaning
No heat demand
Flashing, water heater not enabled
Heat demand
Programme changed water heater temperature activated
Permanent, circulation pump connected to terminals pump L - pump N activated
Flashing, circulation pump stand by
Actual water heater temperature
3 4 3
2 1 2 1
CWH 90 CWH 120
Lighting Instructions
• Read Instruction Manual before use
• Ensure storage tank is full before starting
• To start move main switch to ON
• Heater will work Automatically according to
demand
• In case of failure refer to manual or call Service
Engineer
Reset
Flashing Green - Standby
Continuous Green - Burner On
Red On - Check Diagnostic Code
The water heater is
equipped with 1, 2, 3
or 4 burner modules
depending on the
model. Each burner
module has its own
automatic burner.