CONTENTS WARNINGS Pay Attention to These Terms For your safety read before operating COMPONENT LOCATION General layout Control board GETTING STARTED Before switching ON Boiler controls Lighting the boiler Adjusting the operating temperature Adjusting the hot water temperature How to top-up the system pressure How to reset the boiler BOILER FAULT CODES How to shut down the system for short periods...
WARNINGS Pay Attention to These Terms DANGER: Indicates the presence of immediate hazards which will cau- se severe personal injury, death or substantial property damage if ignored. WARNING: Indicates the presence of hazards or unsafe practices which could cause severe personal injury, death or substantial property damage if ignored.
COMPONENT LOCATION XPak 85 General layout (fig. 1) Water pressure switch Pump Bottom auto air vent (AAV) Gas injector Condense trap Return sensor H stamp main heat exchanger Main heat exchanger Flue thermostat Flue sensor Flue gas analysis test point Flue outlet &...
Control board Fig. 2 Pressure gauge Green led 2-digit LED display Red led Temperature selector space heating Mode selector switch Temperature selector Domestic Hot Water Off/reset - Select this position when the boiler needs to be reset or switched off. Summer mode - The domestic hot water function provided by the water tank is activated.
GETTING STARTED How to read the display temperature Fig. 3) ● (dot in the middle) = means hundred (Fig. 3) ● (dot on RIGHT side) = means DHW mode (Fig. 3a) Before switching ON example: Before switching the boiler on please familiarize yourself with: Fig.
AL91 Main heat exchanger needs cleaning. Call service technician IMPORTANT If the boiler requires to be reset frequently, it may be indicative of a fault, please contact your installer or Raypak Customer Services for further advice. How to shut down the system for short periods The system and boiler can be shut down for short periods by simply turning the mode selector switch to the off position.
If leaks are observed repair at Advice for homeowners once. Please contact Raypak Customer Service if you would prefer a 4. Check air vents for leakage. Raypak service engineer or agent to service your boiler.
Preventive Maintenance Schedule WARNING: Preventative maintenance should ONLY be performed by a qualified service agency in accordance with the procedures listed in the heater Installation and Operating Instruction Manual. The following procedures are recommended and are good practice for all XPak installations. Daily 1.
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