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INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS for the Installer and the User HeatMaster A1003474 - 664Y7000 • B...
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Addendum - Declaration of Conformity i.a.w. Royal Decree (BE) APPLICABILITY : 664Y6900 - Rev E - HeatMaster 25-35-45-70-85-120 TC 664Y7000 - Rev B - HeatMaster 25C Addendum Royal Decree: A1007429 - ADD0180...
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Addendum - NOx APPLICABILITY : 664Y6900 - Rev E - HeatMaster 25-35-45-70-85-120 TC 664Y7000 - Rev B - HeatMaster 25C 664Y6700 - Rev D - Prestige 24-32 Solo/Excellence 664Y6200 - Rev F - Prestige 42-50-75-100-120 Solo 664Y7300 - Rev C - WaterMaster 25-35-45-70-85-120 (Class 6/ Classe 6 / Klass 6 / Clase 6 / Klasse 6 / Klasa 6 / класс...
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• ACV-approved components will be used for the chimney connection. Failure to do Each elbow and straight element will be secured at the sleeve. so will make any warranty claim void.
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PP Flex — — — — Ø 100 * Designations and references (between brackets) are provided as information only. Please refer to the latest ACV brochure for more information and the correct references. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
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SST - SST Ø 100/150 (Ø 430 mm) (537D6208) * Designations and references (between brackets) are provided as information only. Please refer to the latest ACV brochure for more information and the correct references. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
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à 25 cm, maintenir l'élément droit se trouvant après le coude à l'aide d'une fixation • Utiliser des éléments agréés par ACV pour effectuer le raccordement. À défaut, Dans le cas d'un conduit droit (horizontal ou installé en pente) d'une longueur supérieure à 1 m, l'appel en garantie sera réputé...
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(537D6208) Ø 100/150 * Les descriptions et références (entre parenthèses) sont fournies à titre d’information. Veuillez vous référer au catalogue ACV le plus récent pour davantage de détails et les références exactes. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
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Ø 100/150 mm) (537D6208) * Les descriptions et références (entre parenthèses) sont fournies à titre d’information. Veuillez vous référer au catalogue ACV le plus récent pour davantage de détails et les références exactes. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
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Indien een recht (horizontaal of verslepend) element langer is dan 1 m, ondersteun dan het element in het midden met behulp van een klem en zorg ervoor dat de buis vrij kan • Voor de schoorsteenaansluiting, uitsluitend ACV-goedgekeurde componenten bewegen. gebruiken. Als u dit nalaat, vervalt elke aanspraak op garantie.
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PP Flex PP Ø 100 (537D6451) — — — — Ø 100 * Beschrijvingen en referenties (tussen haakjes) worden ter informatie verstrekt. Raadpleeg de nieuwste ACV-catalogus voor meer informatie en exacte referenties. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
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• Losse pan plat dak (Ø SST - SST 430 mm) (537D6208) Ø 100/150 * Beschrijvingen en referenties (tussen haakjes) worden ter informatie verstrekt. Raadpleeg de nieuwste ACV-catalogus voor meer informatie en exacte referenties. Addendum HeatMaster/WaterMaster Chimney Connections : A1005390 - ADD0080...
TABLE OF CONTENTS GENERAL RECOMMENDATIONS ..................3 Removal and Installation of the Front and Top Panels ....................32 Gas Connection ...................................32 Safety Instructions..................................3 Conversion to Propane ................................33 USER’S GUIDE ........................4 CONFIGURATION AND SYSTEM SET-UP ..............34 Meaning of Symbols ..................................4 Basic Configuration - HeatMaster 25 C: High Temperature Heating Circuit with Control by Room Ther- Boiler Marking ....................................5 mostat and Optional Outdoor Sensor.
The manufacturer reserves the right to change the technical characteristics and features of its products without prior notice. • In spite of the strict quality standards that ACV applies to its appliances during production, inspection and transport, faults may occur. Please immediately notify your approved installer of any faults.
USER’S GUIDE MEANING OF SYMBOLS Symbols on the Symbols in the packaging Meaning manual Meaning Fragile Essential recommendation for safety (of persons and equipment) Keep dry Essential recommendation for electrical safety (electrical hazard) Essential recommendation for the correct operation of the appliance or the Keep standing, up system General remark...
Back panel The part number (Code) and serial number (N°) of the appliance are indicated on its rating plate and must be provided to ACV in case of warranty claim. Failure to do so will make the claim void. HeatMaster 25 C: A1003474 - 664Y7000 • B...
USER’S GUIDE CONTROL PANEL AND DISPLAY Main Icons of ACVMAX display Central Heating - indicates information related to the CH circuit. DHW - indicates information related to the Domestic Hot Water circuit. Home - to go back to the main menu screen. Back - to go back to the previous screen.
USER’S GUIDE STAND-BY SCREEN STATUS MESSAGES This screen is displayed at start-up. It indicates that the HeatMaster is ready to respond when a demand is received. Stand-by Indicates that the HeatMaster is ready to respond when a demand is received. CH Demand A central heating call has been received.
ACVMax controller. The EZ setup function allows the user/installer to quickly setup the appliance for im- mediate operation according to the system configuration*. ACV recommends to check the system at least every 6 months as follows: • Check that the system water pressure is at least 1 bar when cold. If the pressure drops General remarks below 0.7 bar, the built-in pressure sensor blocks the appliance until the pressure...
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USER’S GUIDE Heating Easy setup (no outdoor sensor connected) To navigate on the screen, use the UP, DOWN, LEFT and RIGHT keys, • • Use the OK key to validate a selection. • To increase/decrease values, use the UP and DOWN keys, or LEFT and RIGHT, according to the situation EZ Setup Select CH Demand prompts the installer to select how a CH Demand is generated.
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USER’S GUIDE Heating Easy Setup (outdoor sensor connected) EZ Setup Select CH Demand prompts the installer to select how a CH Demand is generated. There are several Select CH Demand options, Heating EZ Setup Select CH Demand among which the installer must make a selection. Thermostat &...
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USER’S GUIDE EZ Setup Heating EZ Setup Warm Weather Shutdown Select CH Demand CH1 Setpoint CH2 Setpoint EZ Setup Complete 82°C 60°C Thermostat & Outd. Curve Heating EZ setup is complete. Constant & Outdoor Curve Additional changes can be made in Refer to page 9 for screen descriptions Constant &...
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USER’S GUIDE DHW Setup EZ Setup Select DHW Demand prompts the installer to select how a DHW Demand is generated. There are two Select DHW Demand options, DHW EZ Setup Select DHW Demand among which the installer must make a selection. Thermostat When Thermostat is selected in Select DHW Demand, a domestic hot water call from an aquastat or dry contact switch will enable Sensor...
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USER’S GUIDE Starting from the Home screen : Easy Setup Reset HeatMaster 84°C EZ Setup 61°C Target = 85°C EZ Setup Reset allows to reset all EZ EZ Setup Reset EZ Setup Reset Boiler Protection setup settings back to the original factory defaults.
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USER’S GUIDE CH/DHW Operation CH/DHW Operation provides a simple way to enable/disable either the CH or the DHW function of the Heat- CH / DHW Operation Heating enabled DHW enabled Master. Press on LEFT or RIGHT button to select the object (CH or DHW icon), then press OK to toggle between the enabled/disabled status.
The HeatMaster® 25 C model is equipped with a high efficiency charging pump and with an ACV air/gas premix burner with low NOx emissions. During operation, the burner starts automatically as soon as the boiler temperature gets lower than the preset temperature and stops as soon as the preset temperature is reached.
APPLIANCE DESCRIPTION CONNECTIONS - AT THE BACK Discharge for built-in DHW safety valve / (T & P re- Connection for low temperature heating circuit lief valve - UK only) outlet to be connected to the return (not used) sewage system Heating return connection [F] Gas connection [M] Grommets for electrical wires (230 V)
TECHNICAL CHARACTERISTICS COMBUSTION CHARACTERISTICS GAS CATEGORIES HM 25 C Gas type Main Characteristics G20/G25 Pressure (mbar) 25.0 25.0 Input (PCI) Country code Category II 2H3P (80/60°C) 24.3 24.3 I 2E(S) Output at 100% (50/30°C) 26.0 26.0 I 3P (80/60°C) 97.3 97.3 II 2H3P Efficiency at 100%...
The appliance is also connected through a second duct fitted with a terminal, that supplies the burner with fresh outdoor air. Please contact your ACV representative for the meters of flue pipes that can be used to connect the appliance(s).
TECHNICAL CHARACTERISTICS CALCULATION OF THE FLUE PIPE LENGTH When connecting the flue pipes, make sure not to exceed the maximum flue pipe length, recommended for the product, otherwise the system pressure might decrease. The flue pipe pipe length can be calculated using the method shown below. Please refer to the tables below indicating the values in meters, applied to each of the connection components. Then compare the calculation result to the recommended maximum flue pipe length indicated in the table on previous page.
90° [M] Make sure to install an external non-return valve on the flue connection. Please contact Appliance type Maximum length in M. your ACV representative for the correct accessory. Dn 150 2 to 6 HM 25 C This table is for systems comprised of identical boilers. For any other configuration, please refer to your ACV representative.
TECHNICAL CHARACTERISTICS ELECTRICAL CHARACTERISTICS HEATMASTER 25 C ® 230 V power supply plug HeatMaster 25C Ground Main Characteristics ON/OFF master switch Rated voltage Gas valve rectified Burner power supply Rated frequency Terminal block for optional items Max. Electrical consumption 230 VAC OUTPUT ! : Alarm (ERR) Min.
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10 11 10 11 12 X103 Harness code: A1002113 Bus A Bus - Ground Bus B Y/Gr X103 ACV Max NTC 3 NTC 4 Y/Gr 0-10 Volt - Input 0-10 Volt - Ground Y/Gr ON / OFF X101 230 V ~ 50Hz...
TECHNICAL CHARACTERISTICS HYDRAULIC CHARACTERISTICS DHW PERFORMANCE Domestic hot water performance* (cold drink water at 10°C) HM 25 C Operating conditions at 80°C HM 25 C Main Characteristics 40 °C [∆T = 30 K] Constant flow at 60 °C [∆T = 50 K] Capacity (primary) 40 °C [∆T = 30 K] L/10’...
A deaerator (on the appliance flow line) combined with a dirt separator (upstream of the appliance) must be installed according to the manufacturer's instructions. - ACV recommends using additives that keep the oxygen in solution in the water, such as Fernox (www.fernox.com) and Sentinel (www.sentinel-solutions.net) products.
TECHNICAL CHARACTERISTICS G3 REQUIREMENTS AND GUIDANCE - UK ONLY 3.55 Any discharge should be visible at the tundish. In addition, where discharges from safety devices may not be apparent, e.g. in dwellings occupied by people with im- paired vision or mobility, consideration should be given to the installation of a suitable safety Discharge pipe from safety valves device to warn when discharge takes place, e.g.
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TECHNICAL CHARACTERISTICS 3.63 The discharge would consist of high temperature water and steam. Asphalt, roofing Worked example of discharge pipe sizing felt and non-metallic rainwater goods may be damaged by such discharges. Figure on the left shows a G1/2 temperature relief valve with a discharge pipe (D2) having 4 No.
• Only use ACV flue systems to connect this appliance to ensure that the pipe and For UK specific requirements for the discharge from safety valves, refer to «G3 Require- connection diameters all match.
INSTALLATION PACKAGE CONTENTS The HeatMaster® 25 C boiler is delivered assembled and packaged. At product reception and after removal of packaging, check the package contents and that the appliance is free of damages. Contents • Boiler • Installation, Operation and Maintenance Instructions •...
If the appliance is used as a domestic hot water preparation tank, a primary expansion vessel adapted to the boiler power/size and to the type of system must expansion vessel kit can be ordered with ACV. be fitted in the heating circuit (if there is no built-in expansion vessel, or if the built- •...
INSTALLATION REMOVAL AND INSTALLATION OF THE FRONT AND TOP PANELS GAS CONNECTION Essential recommendations for safety Set-up conditions • The gas connection must comply with all applicable local standards and • External power supply isolated regulations, and the circuit will be equipped with a gas pressure regulator as required.
INSTALLATION CONVERSION TO PROPANE Follow-on tasks • Stick the sticker provided with the conversion kit on the boiler and check the box to indicate the type General remarks of gas to be now used with the boiler. • Reconnect gas pipe connection. Torque i.a.w. “Torque Values” on page 41 •...
Select CH Demand Thermostat & Outd. Curve Constant & Outdoor Curve The illustrations are for information only. For more details on the required accessories, refer to the latest ACV price list. Constant & Setpoint 0 - 10 V Modulation Signal For electrical detail, refer to wiring diagram in “Electrical Characteristics HeatMaster®...
Bus A Bus - Ground Bus B ACV Max NTC 3 NTC 4 0-10 Volt - Input 0-10 Volt - Ground For additional information and specific system configurations, please contact your ACV representative. HeatMaster 25 C: A1003474 - 664Y7000 • B...
STARTING UP SAFETY INSTRUCTIONS FOR STARTING UP FILLING THE SYSTEM Put the DHW tank under pressure before pressurizing the heating (primary) circuit. General remark • In normal operation, the burner starts automatically as soon as the boiler Set-up conditions temperature drops below the preset temperature. •...
Setup Guide” on page 8 and to the Installer’s Handbook. maximum. If there is a significant deviation, please contact ACV's support department. After 5 minutes of operation, bleed the heating circuit until all air is evacuated and restore a 1.5 bar pressure.
MAINTENANCE PERIODIC BOILER MAINTENANCE TASKS SAFETY INSTRUCTIONS FOR THE BOILER MAINTENANCE Essential recommendations for the electrical safety • Turn off the boiler by pushing on the ON/OFF master switch. Frequency • Isolate the external power supply of the appliance before performing any Periodic 1 year 2 years...
MAINTENANCE DRAINING THE BOILER REMOVAL, CHECK AND INSTALLATION OF THE BURNER ELECTRODE Essential recommendations for safety Essential recommendation for the correct operation of the appliance Remove the electrode to control it in case of ignition problems. • Before draining the DHW tank, drain the heating (primary) circuit or bring its •...
MAINTENANCE REMOVAL AND INSTALLATION OF THE BURNER Set-up conditions • Boiler shut down • External power supply isolated • Gas supply closed • Front and top panels removed (refer to “Removal and Installation of the Front and Top Panels” on page 32).
MAINTENANCE CLEANING THE EXCHANGER RESTARTING AFTER MAINTENANCE Set-up conditions Set-up conditions • Boiler shut down • All removed components reinstalled • External power supply isolated • • Gas supply closed All connections made • • Burner removed i.a.w. procedure “Removal and Installation of the Burner” on page 40. Power supply •...
LOCKING CODES Codes Description of the fault Solution for the fault 1. Check gas supply to boiler. 2. Check Ignition cable connection in control box. E 01 Failed ignition: The burner failed to light after 5 ignition attempts. 3. Check electrode for defects, and distance between the pins. 4.
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LOCKING CODES Codes Description of the fault Solution for the fault E 25 Internal Control Fault: CRC check error. Turn unit off and on to resume normal operation. 1. Check supply temperature sensor and wiring harness for a short circuit. Supply Sensor Shorted: A short circuit has been detected in the boiler supply 2.
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LOCKING CODES Codes Description of the fault Solution for the fault 1. Check Mix circuit temp. sensor and wiring harness for an open circuit. 2. If necessary replace the sensor, or the wire harness. E 79 Mix-circuit sensor Open 3. After fixing the problem reset the appliance and resume normal operation. E 80 Return >...
ECODESIGN DATA Boiler type and model HeatMaster 25 C ☑ Condensing boiler Low temp boiler ☑ ☑ Combination heater Useful heat output at 30% of rated heat output at rated output and high-temp regime 24.3 Useful efficiency at 30% of rated heat output 98.2 η...
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ACV International Oude Vijverweg, 6 1653 Dworp (Belgium) 20/8/2015
A1002289
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HeatMaster 25 C: A1003474 - 664Y7000 • B...