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23.5.5
HEAT EXCHANGER AND BURNER ROOM
After the removal of the complete burner unit check if there is any debris and dirt in the heat exchanger. The coils of the heat exchanger can be
cleaned by using a non-metallic brush. After this the dirt and dust can be removed with a vacuum cleaner and by flushing the burner room with
water. Don't forget afterwards to clean the siphon once again.
Cleaning the burner room with acid or alkali products is prohibited.
23.5.6
GAS/AIR RATIO
With every service check and/or maintenance of the water heater always check the gas/air ratio by measuring the CO
the maximum and minimum load of the water heater. If necessary adjust these values, see for information chapter 15 "Adjusting and setting the
burner".
23.5.7
PUMP
Check the electrical parts and the motor of the pump for a correct functioning. The pump must generate a sufficient water flow over the (heat
exchanger of) the water heater. When the pump produces noise, is operational for more than five years or has signs of water leakage it is
recommended to replace the pump as a precaution.
When the service engineer finds defects and abnormalities during service and maintenance and these are not
repairable, this information should be reported to the owner/end-user of the installation. These defects should be
reported in the service report / log file of the water heater.
During service and maintenance the gas, supply air, flue gas and condensate connections are disconnected, checked and
replaced. Make sure that all these components are mounted correctly before commissioning the water heater again.
24.0 ErP DATA TABLE
Water Heater Type
Manufacturer
Load Profile
Energy Efficiency
Daily Electricity Consumption
Daily Fuel Consumption
Mixed Water V40 @40°C
Emissions of Nitrogen Oxides (EN155021:2012+A1:2015)
Sound Power Level (EN15036-1:2006)
The ErP data shown above relates to the TTW water heater only, the domestic hot water efficiency will depend on:
The number and size of water heaters fitted
The number, size and type of direct storage vessels fitted
The length and insulation of the interconnecting pipework
The type of shunt pumps used
25.0 USER INSTRUCTIONS
Demonstrate to the user the operation of the entire system. Above all, the user should be made familiar with all safety precautions. The user
should be told that service and maintenance of the water heater is required every twelve months. Regular service is essential for the safe and
efficient operation of the water heater. Hand the user the documents supplied with the heater and mention that they are important and need
to stay close to the water heater.
26.0 WARRANTY
Full warranty terms and conditions are available at
www.lochinvar.ltd.uk
percentage (flue gas) at
2
TTW410
4XL
%
87.7
kWh
0.633
kWh
105
litre
∞
mg/kWh
44
LWA(db)
74
TTW580
4XL
85.3
0.69
107.9
∞
41
78
116
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