A.O. Smith ADMR-115 Installation, User And Service Manual

Manual is about: ADMR Series Commercial Atmospheric Water Heater

Summary of ADMR-115

  • Page 1

    0306 114 innovation has a name. Re se t enter 0063 admr installation, user and service manual commercial atmospheric water heater admr - 40/50/60/80/90/115/135.

  • Page 2: Your Installer

    A.O. Smith uk, unit b8 amstrong mall, southwood business park, farnborough, hampshire gu14 0nr www.Aosmith.Co.Uk “a.O. Smith water heaters” is a trading name of advance services (sales) ltd. Reg. Your installer.

  • Page 3

    Instruction manual admr 3 gis read this manual carefully warning read this manual carefully before starting up the water heater. Failure to read this manual and to follow the instructions in this manual may lead to accidents, personal injury, and damage to the appliance. Copyright © 2008 a.O. Smith ...

  • Page 4

    4 instruction manual admr gis.

  • Page 5: Table of Contents

    Instruction manual admr 5 table of contents 1 introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.1 about the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.2 what to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 9 1.3 regulations - - ...

  • Page 6

    Table of contents 6 instruction manual admr 8.3 error conditions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 52 8.4 service condition - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 52 9 starting and running - - - - - - - - - - - - - - - - - - - - - - 53 9.1 starting and ru...

  • Page 7

    Instruction manual admr 7 16.6 claims - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 88 16.7 obligations of a.O. Smith - - - - - - - - - - - - - - - - - - - - - - - - 88 17 appendices- - - - - - - - - - - - - - - - - - - - - - - - - - - 89 17.1 introduction - - - - - - - - - - -...

  • Page 8

    Table of contents 8 instruction manual admr.

  • Page 9: Introduction

    Instruction manual admr 9 gis 1 introduction 1.1 about the appliance this manual describes how to install, service and use the admr appliance. The admr appliance is a gas-fired open boiler without fan. Admr appliances are equipped with a flue gas backflow safeguard. The admr is an appliance of type ...

  • Page 10

    Introduction 10 instruction manual admr 1 gis furthermore, the installation must comply with the manufacturer's instructions. Note later amendments and/or additions to all regulations, requirements and guidelines published on or prior to the moment of installing, will apply to the installation. 1.4 ...

  • Page 11

    Instruction manual admr 11 gis 1.7 overview of this document the table provides an overview of the contents of this document. Contents of this document chapter target groups description working principle of the appliance this chapter describes how the appliance functions. Installation this chapter d...

  • Page 12

    Introduction 12 instruction manual admr 1 gis.

  • Page 13: Working Principle of

    Instruction manual admr 13 gis 2 working principle of the appliance 2.1 introduction topics covered in this chapter: • general working principle of the appliance ; • the appliance's heating cycle ; • protection for the appliance ; • safety of the installation . 2.2 general working principle of the a...

  • Page 14

    Working principle of the appliance 14 instruction manual admr 2 gis in this appliance, the cold water enters the bottom of the tank through the cold water inlet (14). The heat of combustion is conducted to the water by the combustion chamber (8) and heat exchanger (11). The heated tap water leaves t...

  • Page 15

    Instruction manual admr 15 gis 2.4.2 water temperature protection the electronic controller uses temperatures sensors t1 (7) and t2 (13) to monitor three temperatures that are important for safety. The table explains the functioning of the temperature sensors. Temperature protection 2.4.3 flue gas b...

  • Page 16

    Working principle of the appliance 16 instruction manual admr 2 gis 2.5.3 t&p valve a t&p valve is only mandatory in an unvented installation. However, a.O. Smith also recommends the use of a t&p valve in vented installations. A t&p (temperature and pressure relief) valve monitors the pressure in th...

  • Page 17: Installation

    Instruction manual admr 17 is 3 installation warning installation work should be carried out by an approved installation engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire service. The appliance may only be installed in a r...

  • Page 18

    Installation 18 instruction manual admr 3 is 3.3 ambient conditions caution the appliance may not be used in rooms where chemical substances are stored or used, due to the risk of explosion and/or corrosion of the appliance. Some propellants, bleaching agents, degreasing agents etc. Disperse vapours...

  • Page 19

    Instruction manual admr 19 is 3.3.4 working clearances for access to the appliance, it is recommended that the following clearances are observed (see figure): • aa: around the appliance's control column and cleaning openings: 100 cm. • bb: all sides of the appliance: 50 cm. • above the appliance (ro...

  • Page 20

    Installation 20 instruction manual admr 3 is 3.4 technical specifications the appliance is supplied without accessories. Check the dimensions (3.4.1 "dimensions of the appliance") , gas data (3.4.3 "gas data") and other specifications (3.4.2 "general and electrical specifications") of any accessorie...

  • Page 21

    Instruction manual admr 21 is dimensions (all measurements in mm unless otherwise indicated) 3.4.2 general and electrical specifications general and electrical specifications dime nsion description admr 40 admr 50 admr 60 admr 80 admr 90 admr 115 admr 135 a total height 1900 2100 1900 2100 2000 2085...

  • Page 22

    Installation 22 instruction manual admr 3 is 3.4.3 gas data gas data description ii 2h3+ unit admr 40 admr 50 admr 60 admr 80 admr 90 admr 115 admr 135 gas category 2h: general orifice diameter mm 3.20 3.20 3.10 2.95 3.20 3.20 3.90 (1) = blank plate (2) = burner pressure regulator (3) = high/low reg...

  • Page 23

    Instruction manual admr 23 is 3.5 installation diagram this figure shows the installation diagram. This diagram is used in the sections in which the actual connection process is described. Installation diagram legend only applicable numbers are mentioned. 1. Pressure reducing valve (mandatory) 3. T&...

  • Page 24

    Installation 24 instruction manual admr 3 is 3.6 water connections, vented warning the installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "regulations") . 3.6.1 cold water side see (a) in the installation diagram (3.5 "ins...

  • Page 25

    Instruction manual admr 25 is 3.6.5 circulation pipe see (c) in the installation diagram (3.5 "installation diagram") . If an immediate flow of hot water is required at draw-off points, a circulation pump can be installed. This improves comfort and reduces water wastage. 1. Fit a circulation pump (6...

  • Page 26

    Installation 26 instruction manual admr 3 is 3.7.4 drain valve 1. Fit the standard drain valve (9) supplied with the appliance. 2. If applicable, fit a circulation pipe (3.6.5 "circulation pipe") . If not, fit the blind threaded plug and gasket (c) supplied with the drain valve, as shown in the figu...

  • Page 27

    Instruction manual admr 27 is 3.9 chimney flue warning the installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "regulations") . 3.9.1 introduction the separately-supplied draught diverter must be used when connecting the ap...

  • Page 28

    Installation 28 instruction manual admr 3 is installing the draught diverter 3. Fit the mounting bracket (1) in such a way that it properly supports the draught diverter. 4. Drill two holes (2) (3.2 mm bit) for the mounting bracket screws. 5. Screw the mounting bracket tightly to the appliance. 6. P...

  • Page 29

    Instruction manual admr 29 is 3.9.3 fitting the flue damper the following parts can be found in the separate package for the flue damper, supplied with the appliance: the complete assembled flue damper (1), a mounting plate (2) with hole for the flue damper shaft, and fastening screws. You may fit t...

  • Page 30

    Installation 30 instruction manual admr 3 is 3.9.4 fitting the flue gas sensor attached to the control column is a plastic bag containing the flue gas sensor and related mounting components. The sensor lead is already connected inside the control column, but not flue gas safety fit the flue gas sens...

  • Page 31

    Instruction manual admr 31 is 3.10.2 preparation caution the appliance is phase-sensitive. It is absolutely essential to connect the mains phase (l) to the phase of the appliance, and the mains neutral (n) to the neutral of the appliance. Caution there may be no potential difference between neutral ...

  • Page 32

    Installation 32 instruction manual admr 3 is terminal block 3.10.3 connecting the mains power the appliance is supplied without a power cable and isolator. Note in order to receive electrical power, the appliance has to be connected to the mains power by means of a permanent electrical connection. A...

  • Page 33

    Instruction manual admr 33 is 3.10.4 connecting flue damper 1. Feed the power cable through the metric strain relief in the top of the control column. 2. Connect earth ( ), live (l 5 ) and neutral (n) to terminals 25, 26 and 27. Next connect the three coded black wires (1 through 3) to terminals 28 ...

  • Page 34

    Installation 34 instruction manual admr 3 is 3.10.9 connecting an extra error signal (alarm out") alarm out is a potential free terminal that is switched when an error is detected. This can be used to signal errors, for example with a lamp. A 230 v circuit can be directly powered. For other voltages...

  • Page 35

    Instruction manual admr 35 is gas control for admr 135 3.11.1 preparation 1. Isolate the appliance from the power supply (10.3 "electrically isolating the appliance") . 2. There are two test nipples on the gas control. Test nipple (6) is used to check the supply pressure. The other test nipple on th...

  • Page 36

    Installation 36 instruction manual admr 3 is the display will now show internal check for about 10 seconds and go to the main menu. 8. Activate the "on mode" by going through the following steps: - press the blue arrow once ( ) to position the cursor in front of on and press . The display shown here...

  • Page 37

    Instruction manual admr 37 is 3.11.2 checking burner pressure 1. Remove the cap (2) from the burner pressure regulator. 2. Depending on the correction required, correct the burner pressure by turning adjustment screw (3): - adjustment screw anticlockwise: burner pressure decreases. - adjustment scre...

  • Page 38

    Installation 38 instruction manual admr 3 is.

  • Page 39: Conversion to A

    Instruction manual admr 39 is 4 conversion to a different gas category caution the conversion may only by carried out by an authorised installation engineer. If the appliance must operate on a family of gases (lp gas or natural gas) or other gas category than that for which the appliance has been se...

  • Page 40

    Conversion to a different gas category 40 instruction manual admr 4 is 4.1 conversion to different category admr 40 through 115 1. Isolate the appliance from the power supply (10.3 "electrically isolating the appliance") . 2. Shut off the gas supply. Caution the burner can be hot. 3. Unscrew the cov...

  • Page 41

    Instruction manual admr 41 is 11. Check whether there is a burner pressure regulator (1) attached to the gas control, or simply a blank plate (5). Note if the supply pressure for a gas category is the same as the burner pressure (see the gas data table (3.4.3 "gas data") ) then the gas control must ...

  • Page 42

    Conversion to a different gas category 42 instruction manual admr 4 is 4.2 conversion to a different gas category admr 135 4.2.1 introduction this paragraph describes: • conversion from lp gas to natural gas ; • conversion from natural gas to lp gas . Conversion of gas control legend only applicable...

  • Page 43

    Instruction manual admr 43 is 4.2.2 conversion from lp gas to natural gas installing and removing add-on components legend only applicable numbers are mentioned. 4. Timers 5. Bracket 6. 6-contact terminal strip 7 pull reliefs 8. 9-contact terminal strip 9. Metric pull relief 10. High-low control lea...

  • Page 44

    Conversion to a different gas category 44 instruction manual admr 4 is 1. Carry out steps 1 through 9 (4.1 "conversion to different category admr 40 through 115") . 2. Detach the high-low control (9) 3. Fit the burner pressure regulator (1) including the sealing gasket from the conversion set. Attac...

  • Page 45: Filling

    Instruction manual admr 45 gis 5 filling 5.1 filling the appliance 5.1.1 filling unvented installations installation diagram to fill the appliance, proceed as follows: 1. Open the stop valve (11) in the hot water pipe and, if present, the stop valves (4) for the circulation pump (6). 2. Close the dr...

  • Page 46

    Filling 46 instruction manual admr 5 gis 7. The appliance is now under water supply pressure. There should be no water coming out of the expansion valve (15) or out of the t& valve (3). If there is, the cause might be: - the t&p valve is defective or incorrectly fitted. - the water supply pressure i...

  • Page 47: Draining

    Instruction manual admr 47 gis 6 draining 6.1 draining unvented installations installation diagram some service activities require the appliance to be drained. The procedure is as follows: 1. Activate the menu with . 2. Position the cursor in front of off. 3. Confirm off with . 4. Switch the applian...

  • Page 48

    Draining 48 instruction manual admr 6 gis 6.2 draining vented installations installation diagram some service activities require the appliance to be drained. The procedure is as follows: 1. Activate the menu with . 2. Position the cursor in front of off. 3. Confirm off with . 4. Switch the appliance...

  • Page 49: The Control Panel

    Instruction manual admr 49 gis 7 the control panel 7.1 introduction topics covered in this chapter: • controls ; • explanation of icons ; • electronic controller on/off switch ; • navigation buttons ; • pc connection . 7.2 controls the appliance is operated by a menu driven control panel, it consist...

  • Page 50

    The control panel 50 instruction manual admr 7 gis 7.5 navigation buttons the use of these buttons is explained with the help of the figure that shows the main menu (11 "main menu") . The navigation buttons are: • buttons for up , and down ; • enter: ; • reset button: . The ^ arrows and È indicate t...

  • Page 51: Status of The

    Instruction manual admr 51 gis 8 status of the appliance 8.1 introduction topics covered in this chapter: • operating modes ; • error conditions ; • service condition . 8.2 operating modes when running, the appliance has four basic operating modes, namely: • off • on • extra • prog 8.2.1 off in this...

  • Page 52

    Status of the appliance 52 instruction manual admr 8 gis 1. The current time falls within a set time period of the week program. The figure shows the display with the following information: - line one: the text prog; - line two: the time, the day and t 1 and t net alternately (2.3 "the appliance's h...

  • Page 53: Starting and Running

    Instruction manual admr 53 gis 9 starting and running 9.1 starting and running start the appliance as follows: 1. Fill the appliance (5 "filling") . 2. Open (3.5 "installation diagram") the manual gas valve. 3. Switch on the power to the appliance using the isolator between the appliance and the pow...

  • Page 54

    Starting and running 54 instruction manual admr 9 gis 3. During the waiting time, the flue damper opens. - the icon is activated. - the message flue damper appears. 4. After the flue damper opens, the text glow plug appears on the display. This is followed by the (pre-)glow of the hot surface ignite...

  • Page 55: Shutting Down

    Instruction manual admr 55 gis 10 shutting down 10.1 introduction this chapter describes: • shut the appliance down for a brief period ("off mode") ; • electrically isolating the appliance ; • shutting the appliance down for a long period . 10.2 shut the appliance down for a brief period ("off mode"...

  • Page 56

    Shutting down 56 instruction manual admr 10 gis.

  • Page 57: Main Menu

    Instruction manual admr 57 gis 11 main menu 11.1 notational convention for menu-related instructions the menu ( ) of the electronic controller is divided into submenus. For example, settings is one of the functions reached from the main menu. The settings menu is divided into submenus in turn. For e...

  • Page 58

    Main menu 58 instruction manual admr 11 gis the appliance's default week program switches the appliance on every day at 00:00 and off at 23:59. The default water temperature setting is 65°c. If you want, you can change every setting in the appliance's standard week program. If the water temperature ...

  • Page 59

    Instruction manual admr 59 gis 3. Use and to set the hours. In the example, this is 08. Confirm with . The cursor moves to the minute digits, which flash. Note because the switch-off time can never be earlier than the switch-on time, the switch-off time setting is automatically adjusted with the swi...

  • Page 60

    Main menu 60 instruction manual admr 11 gis the display shows the menu for the week program. The cursor points to the active period. 2. Scroll to insert . Confirm with . The sub-menu for adding a period will appear. Example as an example, we will program an extra period in which the switch-on time i...

  • Page 61

    Instruction manual admr 61 gis confirm with . 5. The lines showing switch-on/off times are replaced by the text delete block?. See the figure. Confirm with . (or use to cancel) the switching period has been deleted. You will return now to the week program menu. The cursor points to the first program...

  • Page 62

    Main menu 62 instruction manual admr 11 gis setting the switch-off time 1. Use and to set the hours. In the example, this is 012. Confirm with . The cursor moves to the minute digits, which flash. 2. Use and to set the minutes. In the example, this is 45. Confirm with . The cursor moves to the water...

  • Page 63

    Instruction manual admr 63 gis 11.6.2 setting day and time to enter the time and day: 1. Call up the menu for entering the day and time as follows: 2. : settings. Confirm with . The display shows the menu for settings. 3. Scroll with and to day /time confirm with . The display shows the sub-menu for...

  • Page 64

    Main menu 64 instruction manual admr 11 gis.

  • Page 65: Service Program

    Instruction manual admr 65 is 12 service program 12.1 introduction the service program is used by the installation engineer or service and maintenance engineer for: • setting the hysteresis ; • displaying the error history ; • displaying the appliance history ; • display the selected appliance ; • s...

  • Page 66

    Service program 66 instruction manual admr 12 is 12.4 displaying the appliance history the appliance history submenu is used to display the burning hours, the number of ignitions, the number of flame errors and the number of ignition errors. Call up the menu for displaying the appliance history as f...

  • Page 67: Troubleshooting

    Instruction manual admr 67 gis 13 troubleshooting 13.1 introduction a distinction is made between: • general errors general errors are not reported on the display. General errors are: - gas smell - display does not light up - insufficient or no hot water. - water leakage - explosive ignition. The ma...

  • Page 68

    Is instruction manual admr 68 13.2 troubleshooting table for general errors warning maintenance may only be performed by a qualified service and maintenance engineer. General errors symptom cause solution remark gas smell gas leak close the main gas valve immediately. Do not operate any switches. No...

  • Page 69

    Is instruction manual admr 69 explosive ignition poor flame profile incorrect supply pressure and/or burner pressure set the correct supply pressure and/or burner pressure. (3.11 "checking the supply pressure and burner pressure") if ignition is not improved, consult your installation engineer. Cont...

  • Page 70

    Is instruction manual admr 70 13.3 troubleshooting table for displayed errors warning maintenance may only be performed by a qualified service and maintenance engineer. Displayed errors symptom cause solution remark s01 (blocking error) open circuit from temperature sensor t2 at bottom of the tank s...

  • Page 71

    Is instruction manual admr 71 s04 (blocking error) open circuit from flue gas sensor 1. Flue gas sensor is not (correctly) connected. Connect the flue gas sensor lead (2) to jp4. See the admr electrical diagram (17 "appendices") defective flue gas sensor replace the flue gas sensor t 1 to replace th...

  • Page 72

    Is instruction manual admr 72 s14 (blocking error) short circuit in flue gas sensor 1 short circuit in flue gas sensor circuit replace the flue gas sensor (2) and lead. To replace the necessary parts, you must contact your installation engineer s15 (blocking error) short circuit in flue gas sensor 2...

  • Page 73

    Is instruction manual admr 73 f04 (lock out error) three unsuccessful ignition attempts. No gas 1. Open the main gas valve and/or the manual gas valve supplying the water heater 2. Check the supply pressure to the gas control 3. If necessary, repair the gas supply to repair the gas supply, contact y...

  • Page 74

    Is instruction manual admr 74 f06 (lock out error) short circuit between flame probe and earth damaged cable in contact with metal surface. Check the wiring of the flame probe. If necessary, replace the wiring. If the error persists, contact your installation engineer. To replace the necessary parts...

  • Page 75

    Is instruction manual admr 75 f11 (blocking error) flame detection with closed gas valve. Defective gas valves see f07. F12 (lock out error) the flue gas backflow safeguard is activated. Chimney flue blocked 1. Check for blockages in the chimney flue pipe 2. Remove any blockages 3. Reset electronic ...

  • Page 76

    Is instruction manual admr 76 c02 (lock out error) error message from the appliance controller. Incorrect reference voltage from the ad converter. 1. Reset electronic controller. 2. Check that the frequency of the power supply is compliant (3.4.2 "general and electrical specifications") . If this is...

  • Page 77

    Is instruction manual admr 77 e01 (blocking error) the temperature protection at the top of the tank has been activated. The temperature of the water at the top of the tank is > 85 o c. None. This is a temporary message that may appear from time to time, but will disappear automatically. E03 (lock-o...

  • Page 78

    Is instruction manual admr 78.

  • Page 79: Maintenance

    Instruction manual admr 79 is 14 maintenance frequency 14.1 introduction a service should be carried out at least once a year, both on the water side and on the gas side. Maintenance frequency depends, among other things, on the water quality, the average burning time per day and the set water tempe...

  • Page 80

    Maintenance frequency 80 instruction manual admr 14 is.

  • Page 81: Performing

    Instruction manual admr 81 s 15 performing maintenance 15.1 introduction caution maintenance may only be performed by a qualified service and maintenance engineer. At each service, the appliance undergoes maintenance on both the water side and the gas side. The maintenance must be carried out in the...

  • Page 82

    Performing maintenance 82 instruction manual admr 15 s 6. Activate "on mode" by going through the following steps: - press once on the blue arrow ( ) to position the cursor beside on, then press . - confirm the selection start operation with . 7. If there is no heat demand, increase tset (11.3 "sett...

  • Page 83

    Instruction manual admr 83 s 3. Detach the fastening brackets from the flue gas sensor. 4. Disconnect the draught diverter from the flue gas discharge. 5. Undo the screws on the draught diverter. 6. Remove the draught diverter from the appliance. 7. Undo the screws of the lid in the top side of the ...

  • Page 84

    Performing maintenance 84 instruction manual admr 15 s 3. Undo the bolts. 4. Remove the lid, the gasket and the o-ring. 5. Inspect the tank and remove the loose scale deposits and contamination. 6. If the scale cannot be removed by hand, descale the appliance with a descaling agent. Contact the supp...

  • Page 85

    Instruction manual admr 85 s 5. Undo the screws on the draught diverter. 6. Remove the draught diverter from the appliance. 7. Undo the screws of the lid in the top side of the appliance. 8. Remove the lid from the appliance. 9. Remove the sealing ring from the appliance. Warning the flue baffles ca...

  • Page 86

    Performing maintenance 86 instruction manual admr 15 s.

  • Page 87: Warranty (Certificate)

    Instruction manual admr 87 gis 16 warranty (certificate) to register your warranty, you should complete and return the enclosed warranty card after which a warranty certificate will be sent to you. This certificate gives the owner of a appliance supplied by a.O. Smith water products company b.V. Of ...

  • Page 88

    Warranty (certificate) 88 instruction manual admr 16 gis i. The appliance is at all times fitted with cathodic protection. If sacrificial anodes are used for this, these must be replaced and renewed when, and as soon as, they are 60% or more consumed. When electric anodes are used, it is important t...

  • Page 89: Appendices

    Instruction manual admr 89 is 17 appendices 17.1 introduction this appendix contains: • electrical diagrams admr (17.2 "electrical diagrams admr") • week program card.

  • Page 90

    Appendices 90 instruction manual admr 17 is 17.2 elektrical diagrams 17.2.1 electrical diagram admr 40 through 115 and 135 natural gas, 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = grey/beige, 7 = green, 8 = yellow admr 17.2.1 admr 40 trough 115 lp-gas.

  • Page 91

    Instruction manual admr 91 is terminal strip connections: earth n neutral l 1 live input of controller l 2 live input of program-controlled pump l 3 live input of continuous pump l 4 live input of extra error signal connection l 5 live input of flue damper motor l 6 live output of flue damper motor ...

  • Page 92

    Appendices 92 instruction manual admr 17 is 17.2.2 electrical diagram admr 135 lp gas 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = grey/beige, 7 = green, 8 = yellow.

  • Page 93

    Instruction manual admr 93 is terminal strip connections: earth n neutral l 1 live input of controller l 2 live input of program-controlled pump l 3 live input of continuous pump l 4 live input of extra error signal connection l 5 live input of flue damper motor l 6 live output of flue damper motor ...

  • Page 94

    Appendices 94 instruction manual admr 17 is.

  • Page 95

    Instruction manual admr 95 17.3 week program card you can cut the week program card out and keep it near the appliance. Example period day time tset pump 1. On ....°c on / off off 2. On ....°c on / off off 3. On ....°c on / off off 4. On ....°c on / off off 5. On ....°c on / off off 6. On ....°c on ...

  • Page 96

    Instruction manual admr 96.

  • Page 97: Index

    Instruction manual admr 97 index a ambient temperature 18 appliance displaying history 66 displaying selection 66 heating cycle 14 b burner pressure 34 c claims 88 connect circulation piping 25, 26 cold water side 24, 25 electrical 30, 32 gas 26 hot water side 25 shut pipe 24, 25 connecting circulat...

  • Page 98

    0306 114 5. 1 uk index instruction manual admr symbol installation engineer 10 service engineer 10 user 10 t target groups 10 temperature sensor t1 14 t2 14 thermocontrol on/off switch 49 tnet 14 to shut down electrically isolating 55 longer period 55 short period 55 trademarks 3 u user 10 w warrant...