andrews 24/39 Installation And Service Manual page 4

Contents
5 Operation
5.1 Standard range
5.2 Hiflo range
5.2.1 Permanent pilot models, operating sequence
5.3 HIflo and standard range auto ignition
5.3.1 Auto ignition units, operating sequence. Hiflo and standard range
5.3.2 ECO (energy cut - off)
5.3.3 Temperature stratification (stacking)
6 Servicing
6.1 Introduction
6.1.1 Servicing must be carried out by a properly qualified person
6.2 Pre - service options
6.2.1 Servicing, carry out the following operations
6.3 Burner assembly standard range
6.3.1 The burner assembly should be checked and cleaned annually
6.4 Burner assembly Hiflo range
6.4.1 The burner assembly should be checked and cleaned annually
6.5 Gas control valve standard range
6.6 Gas control valve Hiflo range
6.7 Fuel ways standard range
6.8 Fuel ways Hiflo range
6.9 Cleaning the storage vessel all models
6.9.1 Descaling
6.10 Magnesium anode(s) all models
6.11 Safety valve Hiflo models
6.12 Restart all models
7 Replacing components, Hiflo range
7.1 Gas control valve
7.2 User - adjustable control thermostat with limit sensor phial and overheat ECO
7.3 Thermopile/ pilot, burner/ pilot restrictor
7.4 Burner
8 Fault finding
8.1 Permanent pilot models standard and Hiflo range
8.2 All models
8.3 Auto ignition units standard range
8.4 Auto ignition units Hiflo models
8.5 Checking "correx" anodes
8.6 LPG permanent pilot models - LPG HIflo ranges
9 Parts list and illustrations
9.1 Standard Range models 24/29, 32/40, 40/61, 63/62 (Natural Gas)
9.2 Standard Range models 84/87 (Natural Gas)
9.3 Standard Range models parts list (Natural Gas)
9.4 Standard Range LPG models L24/31, L32/35, L40/36, L63/71
9.5 Standard Range LPG model L84/74
9.6 Standard Range models parts list (LPG)
9.7 HIflo models 32/143 (Natural Gas)
9.8 HIflo models 65/173 and 81/264 (Natural Gas)
9.9 HIflo models parts list (Natural Gas)
9.10 HIflo models 62/341 and 54/418/440 (Natural Gas)
9.11 HIflo models parts list (Natural Gas)
9.12 HIflo LPG model L32/143
9.13 HIflo LPG models L65/169, L81/251
9.14 HIflo P.P Water Heater parts list (LPG)
9.15 HIflo LPG models L62/309, L54/399
9.16 HIflo P.P Water Heater parts list (LPG)
9.17 Unvented systems kit - standard range
9.18 Unvented systems kit - Hiflo range
9.19 Unvented systems kit - standard range parts list
9.20 Unvented systems kit - Hiflo range parts list
9.21 24 Volt auto system kit B217
9.22 24 Volt auto system kit B258
9.23 24 Volt auto system kit standard range parts list
9.24 24 Volt auto system kit Hiflo parts list
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Issue 2 14/07/16