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Instruction manual TWI 35-130 G/TWI 45-190 G     

 

 

59

      

Index

A

air humidity 16

air pressure switch 13

ambient conditions 15

ambient temperature 16

B

brand names 3

C

concentric connections 24

condition

 

gas valve open 39

 

heat demand 39

 

power on 39

connect

 

air supply 22

 

circulation piping 21

 

cold water side 21

 

condensation drainage 21

 

diagram 20

 

electrical 19

 

flue gas discharge 22

 

gas 25

 

hot water side 21

 

isolating transformer 30

contents of document 9

conversion to another gas category 33

CO

2

-value 30

D

descale 50

device

 

general operation 11

 

heating cycle 12

 

security 12

 

types 9,17

dimensions 18

drain 37

E

electrical circuit diagram 54

electrical connection 28

electrical connector block 29

error 43

F

fan 13

fill 43

floor loading 16

G

gas control 13

gas smell 7

general data 3

general operation 11

H

heat demand 39

heating cycle 39

I

in operation 39

index 57

installation engineer 8

ionisation detection 13

isolating transformer 30

L

liability 3

M

main switch 30

mains voltage 30

maintenance

 

burner 50

 

carry out 49

 

complete 50

 

condensation drainage 50

 

gas side 50

 

heat exchanger 50

 

prepare 49

 

scale 50

 

water side 50

maximum floor loading 16

N

notation system 9

P

packaging 15

parallel connections 26

power cable 30

protected cold supply setup 14

protection against freezing 41

purge afterwards 53

Содержание TWI 35-130

Страница 1: ...0311935 Innovation has a name Installation User and Service Manual Condensing Stainless Steel Water Heater TWI 35 130 45 190 TWI 4115 Changes Reserved...

Страница 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...

Страница 3: ...al and in conformity with the General Terms and Conditions as filed with the Chamber of Commerce For further information see the General Terms and Conditions These are obtainable from us free of charg...

Страница 4: ...4 Instruction manual TWI 35 130 G TWI 45 190 G...

Страница 5: ...Water connections vented 22 3 8 Gas connection 22 3 9 Air supply and flue gas discharge 22 3 10 Electrical connection 28 3 11 Check and adjust the CO2 value 30 4 Conversion to another gas category 34...

Страница 6: ...11 2 Warranty tank 53 11 3 Conditions of installation and use 54 11 4 Exclusions 54 11 5 Extent of the warranty 54 11 6 Claims 54 11 7 Obligations of A O Smith 54 12 Annex 55 12 1 Introduction 55 12 2...

Страница 7: ...ructions may lead to personal injuries and damage to the device Warning In case of smelling gas No open fire No smoking Avoid sparking Do not use any electric switches including telephone plug or bell...

Страница 8: ...asis of this check Remark Regular maintenance lengthens the life of the device Both the end user and the service and maintenance engineer are responsible for regular maintenance They shall make clear...

Страница 9: ...rvice and maintenance engineer It describes the errors of the device These errors are shown on the display A table gives the possible cause and solution However an end user can also find additional in...

Страница 10: ...manual TWI 35 130 G TWI 45 190 G Introduction 1 Chapter Target groups Description 11 Warranty certificate This chapter contains the terms of warranty 12 Annexes This chapter contains the electrical c...

Страница 11: ...lating layer 3 Air pressure switch 4 Burner 5 Venturi 6 Air supply pipe 7 Gas control 8 Cover plate 9 Hot surface igniter 10 Fan 11 Thermostat 12 Hot water outlet 13 Heat exchanger 14 Tank 15 Combusti...

Страница 12: ...wn through the heat exchanger along the water This gradually cools down the flue gasses As the cooled down flue gasses are finally led along the cold water at the bottom of the tank as well the flue g...

Страница 13: ...ion takes place This is called pre purging 2 4 5 Air pressure switch The air pressure switch guarantees discharge of flue gasses and supply of air during pre purging and operation of the device The ai...

Страница 14: ...sorbs the overpressure The height of the water tank determines the maximum operating pressure in the tank The maximum operating pressure is 8 bars The installation shall also be equipped with an expan...

Страница 15: ...in order to prevent damaging the device You can best unpack the device when it is close to or on its definite place Caution Move the device only standing up Make sure not to damage the device after u...

Страница 16: ...cification for weight in connection with the maximum floor loading 3 3 3 Water composition The device is designed for heating drinking water The drinking water shall comply with the regulations for dr...

Страница 17: ...floors in case of leakage of the tank and or connections If this is the case install the device near a floor discharge or in a metal drip tray of the right size A drip tray shall have a solid discharg...

Страница 18: ...valve connection 155 155 S Height T P valve connection 1040 1395 W Height condensation drainage 100 100 1 Cold water supply connection 1 NPT 1 NPT 2 Hot water outlet connection 1 NPT 1 NPT 3 Gas cont...

Страница 19: ...on kg h 2 6 3 5 Emissions of Nitrogen Oxides NO2 mg kWh GCV 51 70 Based on 1013 15 mbar and 15 C Description Unit TWI 35 130 TWI 45 190 Volume l 129 189 Empty weight kg 70 82 Maximum operating pressur...

Страница 20: ...alve 10 manual gas valve obligatory 11 service valve 12 temperature meter optional 13 condensation drainage 14 draw off points 15 expansion valve obligatory 16 expansion vessel obligatory 17 three way...

Страница 21: ...See C in the connections diagram 3 5 Connections diagram If you want to have hot water available immediately you can install a circulation pump at the draw off points This is more comfortable and avo...

Страница 22: ...water discharge pipe Attention All connections downstream the siphon shall be condensation resistant Warning The installation shall be carried out by a recognised installation engineer in accordance w...

Страница 23: ...Instruction manual TWI 35 130 G TWI 45 190 G 23 Device types IMD 0531 R0...

Страница 24: ...length When using less than the maximum pipe length it is still not allowed to use more than the maximum number of bends All this will be explained using an example Practical example of concentric fl...

Страница 25: ...minal C13 Subject Description Wall flue terminal set 1x Wall flue termi nal incl wall plate clamping strip 1x Pipe 500 mm 1x Bend 90 Item no TWI 35 130 0302 515 1 TWI 45 190 0302 515 1 Construction Co...

Страница 26: ...shall be carried out for compliance of the configuration with the requirements stated in the table 3 Installation Subject Description Roof flue terminal set 1x Roof flue terminal incl clamping strip 1...

Страница 27: ...material parts 1 2 3 4 and 5 The length of the transition piece need not be taken into account The total number of used bends in the flue gas discharge and air supply is eight The bend in the transiti...

Страница 28: ...ption indicated in the table 3 4 2 General and electrical data 3 10 2 Preparation Caution The device is phase sensitive It is absolutely necessary to connect the phase L of the mains to the phase of t...

Страница 29: ...k Legends A screws B cover plate C connector block D strain relief For preparation remove the cover plate B from the electricity part by loosening the two screws A Remark Consult the electrical circui...

Страница 30: ...1 Connect phase L zero Z and earth of the power cable to the connector C 2 Mount the power cable into the strain relief D 3 Connect the power cable to the main switch 4 Remount the cover plate 3 10 4...

Страница 31: ...he concentric venturi tube 2 Open the gas supply and bleed the air from the gas system 3 Switch on the voltage of the device using the main switch of the device 4 Turn the thermostat clockwise until t...

Страница 32: ...iation by turning the CO2 setting screw 4 CO2 setting screw clockwise CO2 value decreases CO2 setting screw counterclockwise CO2 value increases 4 Put back the cap 3 on the CO2 setting screw 4 5 Remou...

Страница 33: ...Instruction manual TWI 35 130 G TWI 45 190 G 33 4 Conversion to another gas category Conversion to another gas category is not possible...

Страница 34: ...34 Instruction manual TWI 35 130 G TWI 45 190 G 4 Conversion to another gas category...

Страница 35: ...6 circulation pump optional 9 drain valve 10 manual gas valve obligatory 11 service valve 12 temperature meter optional 13 condensation drainage 14 draw off points 15 expansion valve obligatory 16 ex...

Страница 36: ...might be that The water piping pressure is larger than the required 8 bars Mount a pressure reducing valve 1 after all The expansion valve of the protected cold supply setup is defective or incorrectl...

Страница 37: ...6 circulation pump optional 9 drain valve 10 manual gas valve obligatory 11 service valve 12 temperature meter optional 13 condensation drainage 14 draw off points 15 expansion valve obligatory 16 exp...

Страница 38: ...pe A 5 Connect the discharge hose to the drain valve 9 6 Open the drain valve 9 7 Aerate the device or installation allowing it to completely empty For some activities the device needs to be drained P...

Страница 39: ...o remove any combustion gases still present Then the fan stops and heats the hot surface igniter for 35 seconds After this pre heating period the fan starts and the gas valve opens This blows the air...

Страница 40: ...again three consecu tive times If this has not succeeded after three times the electronic control will temporarily switch off The control will automatically reset after an hour and the above mentioned...

Страница 41: ...stopped purging 3 Electrically isolate the device by turning the main switch between the device and the electricity mains to the 0 position Drain the device when shutting it down for a longer period P...

Страница 42: ...42 Instruction manual TWI 35 130 G TWI 45 190 G 8 Shut down...

Страница 43: ...f the LED The different errors are divided into three groups SOFT LOCKOUT SL The control automatically resets after 60 minutes SOFT LOCKOUT HARD LOCKOUT SL3 The control automatically resets after 60 m...

Страница 44: ...rning No open fire Warning Ventilate the area the device has been installed in Warning Immediately contact the installation engineer or the local gas company Water leakage Leaking water con nection th...

Страница 45: ...nated burner Clean the burner 10 4 2 Clean the burner Contaminated air inlet filter Clean the air inlet filter 10 4 4 Cleaning the air inlet filter Symptom Cause Solution Remark Insufficient or no hot...

Страница 46: ...lacing the required parts Air pressure switch does not close 1 Check if the fan is running 2 Check if the hoses are correctly mounted on the air pressure switch 3 Check the hoses on the air pressure s...

Страница 47: ...perly connected See 12 2 Electrical circuit diagram 2 Check the cabling of the hot surface igniter 3 Check the voltage over the hot surface igniter This should be 115 VAC 4 Measure the resistance over...

Страница 48: ...e 1 Check the cabling of the hot surface igniter 2 Replace the cabling if necessary The electronic control automatically resets after ionisation signal dissappears Contact the installation engineer in...

Страница 49: ...ion Then draw off water to create a heat demand 4 Check if the heating cycle runs correctly 7 3 Heating cycle of the device 5 Check the CO2 value and adjust this if necessary 3 11 Check and adjust the...

Страница 50: ...e and the siphon to avoid stoppage 10 4 1 Introduction Proceed as follows for gas side maintenance 1 Clean the burner 2 Clean the heat exchanger 3 Cleaning the air inlet filter 10 4 2 Clean the burner...

Страница 51: ...an the filter by means of a vacuum cleaner or by rinsing 4 Put the filter back into the black housing 5 Mount the air supply hose back onto the condensation drainage I M D 0 7 1 9 R 0 Remark Check the...

Страница 52: ...52 Instruction manual TWI 35 130 G TWI 45 190 G Maintenance 10...

Страница 53: ...owing through the boiler or left in it The warranty referred to in Articles 1 and 2 only apply if the following conditions are met a The boiler is installed according to the installation instructions...

Страница 54: ...rehouse delivery of the boiler to be replaced or any parts thereof A O Smith shall not bear the transport labour installation and other costs in connection with the replacement A claim based on the wa...

Страница 55: ...Instruction manual TWI 35 130 G TWI 45 190 G 55 This annex contains The Electrical circuit diagram Legends 12 1 Introduction 12 Annex...

Страница 56: ...56 Instruction manual TWI 35 130 G TWI 45 190 G Annex 12 12 2 Electrical circuit diagram 0308447 1 brown 2 blue 3 green 4 black 5 white 6 grey beige...

Страница 57: ...th N Zero L1 Phase COMPONENTS A Electronic control B Air pressure switch C Hot surface igniter D Temperature sensor ECO E Thermostat board F Yellow LED G Thermostat H Red LED J Green LED K Gas control...

Страница 58: ...58 Instruction manual TWI 35 130 G TWI 45 190 G Annex 12...

Страница 59: ...ycle 12 security 12 types 9 17 dimensions 18 drain 37 E electrical circuit diagram 54 electrical connection 28 electrical connector block 29 error 43 F fan 13 fill 43 floor loading 16 G gas control 13...

Страница 60: ...e interval 66 shut down short period 41 longer period 41 isolate 41 specifications 16 symbol installation engineer 8 service engineer 8 user 8 start up 39 T target groups 8 temperature sensor 12 trade...

Страница 61: ...Instruction manual TWI 35 130 G TWI 45 190 G 61...

Страница 62: ...62 Instruction manual TWI 35 130 G TWI 45 190 G...

Страница 63: ...Instruction manual TWI 35 130 G TWI 45 190 G 63...

Страница 64: ...64 Instruction manual TWI 35 130 G TWI 45 190 G 0311935 R0...

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