Performing Maintenance; Introduction; Preparation For Maintenance; Water-Side Maintenance - Lochinvar CHA 100 G CE Installation, Commissioning, User & Maintenance Instructions

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12.1 Introduction

12.2 Preparation for
maintenance
12.3 Water-side
maintenance
12.3.1
Instruction manual CHA
Performing
maintenance
Note
Maintenance may only be performed by a qualified service and
maintenance engineer.
At each service, the appliance undergoes maintenance on both the water side
and the gas side. The maintenance must be carried out in the following order.
1.

Water-side maintenance

2. Water-side maintenance
3. Gas-side maintenance
4. Finalising maintenance
Comment
To order spare parts, it is important to write down the appliance type and
model, and the full serial number of the appliance. These details can be found
on the rating plate. Only by ordering with this information can you be sure to
receive the correct spare parts.
To test whether all components are still working properly, complete the following
steps:
1. On the control panel, set the ON/OFF switch to position 0.
2. Set the control thermostat (note the original setting) to the highest position,
and put the ON/OFF switch back to position I.
3. If there is no demand, draw some hot water off to create demand.
4. Check whether the heating cycle
running correctly .
5. Set the control thermostat back to the original setting, and put the ON/OFF
switch back to position I.
6. Check the supply and burner pressures
pressure and burner pressure")
7. Check that all components of the chimney flue system are properly attached.
8. Test the operation of the overflow valve of the protected cold supply setup.
The water should spurt out.
9. Test the overflow operation of the T&P valve. The water should spurt out.
10. Check the drainpipes from the discharge points of all valves and remove any
scale deposits that may be present.
11. Drain the appliance (6 "Draining").
Introduction
The following steps must be carried out on the water side:
1. Checking the anodes.
2. Descaling and cleaning the
(9.3 "The appliance's heating cycle")
(3.11 "Checking the supply
and adjust them where necessary.
tank.
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