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CONTENTS
1 USER INSTRUCTIONS ......................................................................................................... 6
1.1 Dual Thermostat – Non-Combi Boilers ....................................................................................... 6
1.2 Burner Lockout ........................................................................................................................... 6
1.3 System Pressure – System & Combi Boilers .............................................................................. 6
1.4 Filling Loop ................................................................................................................................. 7
1.5 Corrosion Inhibitor ...................................................................................................................... 7
1.6 Control Panel – Combi Boilers.................................................................................................... 8
1.7 Thermostatic Mixing Valve ......................................................................................................... 9
2 CONDENSING BOILER INSTALLATION REQUIREMENTS ............................................. 10
3 BEFORE FITTING A COMBI BOILER THE INSTALLER MUST CHECK: ........................ 11
4 GENERAL INFORMATION ................................................................................................. 12
4.1 Introduction .............................................................................................................................. 12
4.2 General Requirements ............................................................................................................. 12
4.3 Combi General Requirements .................................................................................................. 13
4.3.1 Pump Overrun ................................................................................................................................... 13
4.3.2 Diverting Valve Operation ................................................................................................................ 14
4.4 Baffle Positioning...................................................................................................................... 15
4.5 Components ............................................................................................................................. 16
4.5.1 B-Series Boilerhouse – Casing Components & Key Components .............................................. 16
4.5.2 U-Series Utility – Casing Components ........................................................................................... 17
4.5.3 U-Series Utility – Pre-Wired (UHE) .................................................................................................. 18
Key Components .............................................................................................................................................. 18
4.5.4 U-Series Utility – Pumped (UPHE) ................................................................................................... 19
Key Components .............................................................................................................................................. 19
4.5.5 U-Series Utility – System (USHE) - Key Components ................................................................... 20
4.5.6 U-Series Utility – Combi (UCHEE) - Key Components .................................................................. 20
4.5.7 K-Series Kabin Pak – Casing Components .................................................................................... 21
4.5.8 K-Series Kabin Pak - Pre-Wired (KHE) ............................................................................................ 22
Key Components .............................................................................................................................................. 22
4.5.9 K-Series Kabin Pak - Pumped (KPHE) ............................................................................................ 23
Key Components .............................................................................................................................................. 23
4.5.10 K-Series Kabin Pak – System (KSHE) - Key Components............................................................ 24
4.5.11 K-Series Kabin Pak – Combi (KCHEE) - Key Components........................................................... 24
4.5.12 Combi Pipe Layout (UCHEE & KCHEE Models) ............................................................................ 25
5 TECHNICAL DETAILS ....................................................................................................... 26
5.1 Combi Sequence of Operation Flow Chart ............................................................................... 26
5.2 Dimensions .............................................................................................................................. 27
5.2.1 B-Series Boilerhouse (B70HE, B90HE & B120HE Models) ........................................................... 27
5.2.2 U-Series Utility (UHE, UPHE & USHE Models up to 120HE) ......................................................... 27
5.2.3 U-Series Utility (150HE Models) ...................................................................................................... 28
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