ACV HeatMaster 25 TC Installation, Operation And Maintenance Instructions

Also see for HeatMaster 120 TC: User guide Installer's handbook Installation operation & maintenance Installation, operation and maintenance instructions

Contents

ACV HeatMaster 25 TC Installation, Operation And Maintenance Instructions Manual pdf 36 page image

HYDRAULIC CONNECTIONSGeneral remark• The circuit illustrations are basic principle diagrams only.Essential recommendations for safety• The hot water output may reach temperatures in excess of 60°C, which can causescalding! It is therefore necessary to install a thermostatic mixing valve after theappliance.• The system must be fitted with an approved safety group, comprised of a 7 barsafety valve, a check valve and a shut-off valve.*Essential recommendations for the correct operation of the appliance• Flush the system before connecting the domestic hot water circuit. Refer to theinstallation instructions.• Make sure to install a pressure reducing valve set at 4.5 bar if the mains supplypressure is in excess of 6 bar.• It is recommended to install an expansion vessel in the DHW circuit to prevent the safetyvalve from opening constantly and reduce the water hammer effect in the system.• If the appliance is used as a domestic hot water preparation tank, a primaryexpansion vessel adapted to the boiler power/size and to the type of system mustbe fitted in the heating circuit (if there is no built-in expansion vessel, or if the built-in expansion vessel size is not sufficient).Cold waterHot waterTypical installation with internal DHW tankDescription1. Isolating valve2. Pressure reducing valve3. Check valve4. DHW expansion vessel5. Safety valve6. Drain valve7. Grounding8. Draw-off tap9. Thermostatic mixing valve1 2 31845679* For UK specific requirements for the discharge from safety valves, refer to «G3 Require-ments and Guidance - UK Only» on page 32.GASpressure(mbar)en36ENFRNLESITDEPLRU HeatMaster 25 - 35 - 45 - 70 - 85 - 120 TC : A1003129 - 664Y6900 • CINSTALLATIONBOILER PREPARATIONBefore placing the boiler in its final position, install:• The ball condensate trapTOOLS REQUIRED FOR THE INSTALLATION• The safety valve kit :Primary circuit safety valve at the back ofthe boilerFit the condensate trap, complete with the ball, making sure to install the items in the correctsequence and connect the hose to the drain using a connection that can be inspected. Fill thetrap with clean water. Make sure to prevent any risk of the condensates freezing.DHW CONNECTION