Starting Up; Safety Instructions For Starting Up; Tools Required For Starting Up; Checks Before Starting Up - ACV WaterMaster 25 Installation, Operation And Maintenance Instructions For The Installer And The User

STARTING UP

SAFETY INSTRUCTIONS FOR STARTING UP

Essential recommendations for safety
• The components inside the control panel may only be accessed by an approved
installer.
• Set the water temperature in accordance with usage and local plumbing codes.
• Make sure that the heating circuit filling valve is closed once the starting up
process is complete.
• If there is a drain assembly, make sure that the condensate drain assembly is filled
with water before starting up the boiler. Fill with water as necessary.
• Make sure that all connections are made and tight.
General remark
• In normal operation, the burner starts automatically as soon as the boiler
temperature drops below the preset temperature.

TOOLS REQUIRED FOR STARTING UP

CHECKS BEFORE STARTING UP

Essential recommendation for safety
• Check the tightness of the flue pipe connections.
Essential recommendation for the correct operation of the appliance
• Control the tightness of the hydraulic circuit connections.
GAS
pressure
(mbar)
WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D

FILLING THE SYSTEM

Put the DHW tank under pressure before pressurizing the heating (primary) circuit.
Set-up conditions
• External power supply isolated
DHW circuit fi lling procedure
1. Open the isolating valves (1) and the draw-
off tap (2).
2. Once the water flow rate has stabilized and
the air is totally evacuated from the system,
close the draw-off tap (2).
3. Check all the connections for leaks.
Cold water
Hot water
Primary circuit filling procedure
Heating circuit fi lling procedure
1. Make sure that the drain valve (2) is tightly closed.
1. Open boiler front panel (refer to
applicable procedure in the manual).
2. Open the isolating/filling valve (1).
2. Open the isolating valves (1).
3. Once the system is bled from air, bring the
pressure to the static pressure between 1.5
3. Make sure that the drain valve (3) is
bar and 2 bar.
tightly closed.
4. Close the isolating/filling valve (1).
4. Open the fi lling valve (2).
5. Disconnect filling device from water
5. Once the system is bled from air,
supply.*
bring the pressure to the static
pressure between 1.5 bar and 2 bar.
Follow-on tasks
6. Close the fi lling valve (2).
1. Check there is no leak.
7. Disconnect fi lling device from water
supply.*
Follow-on tasks
1. Check there is no leak.
* UK specifi c reference G24.1 & G24.2 of the Water Regulations Guide.
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1
1
The drain valve is located underneath and
the front cover of the base needs to be
removed to get access to it.
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2
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1
2
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