Strebel S-CB+ Series Installation Operating & Maintenance Manual Download

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S-CB

Boiler Range Manual

2.2 Technical specifications datasheet

GENERAL

Product Identification Number

CE 0063 BP3254

Classification

II2H3P (for NL II2L3P)

Gas Appliance Type

B23, B23P; C13X, C23X, C33X, C43X, C53X, C63X, C83X

Type boiler

S-CB

100 S-CB

120 S-CB

150 S-CB

180

Dimensions (h x w x d)

842 x 476 x 486

898 x 476 x 677

Water content estimated

litre

3,9

5,0

6,5

8,3

10,4

12,9

Weight (empty)

101

Flow/return connection (boiler)

inch

R 1”

R 1¼”

Flow/return connection (T-piece)

inch

Rp 1¼”

Rp1¼”

Rp 1¼”

Rp 1½”

Gas connection

inch

R ¾”

R 1”

Flue duct flue/air inlet (* as supplied) mm

80/125

100/150

Parallel connection (* as supplied)

80-80

100-100

130-130

HEATING

Values min-max:

Nominal input (Net)

12,5 - 55,6 14,6 - 74,3 17,2 - 92,2 26,0 - 111 34,0 - 138 45,0 - 166

Nominal input (gross) (G20, G25)

13,9 - 61,8 16,2 - 82,5 19,1 - 102 28,9 - 123 37,8 - 153 50,0 - 184

Nominal input (gross) (G31)

13,6 - 60,4 15,9 - 80,8 18,7 - 100 28,3 - 121 37,0 - 150 48,9 - 180

Nominal input (gross) (G30)

13,5 - 60,3 15,8 - 80,2 18,6 - 99,7 34,7 - 120 36,8 - 150 48,8 - 180

Nom. output 80/60°C

12,0 - 53,5 14,0 - 71,2 16,5 - 88,4 24,7 - 106 32,6 - 132 43,3 - 160

Nom. output 50/30°C

12,9 - 57,4 15,2 - 77,5 18,0 - 96,2 27,2 - 116 35,5 - 144 47,3 - 175

Nom. output 37/30°C

13,5 - 59,8 15,7 - 80,1 18,6 - 99,5 28,1 - 120 36,7 - 149 48,5 - 179

Efficiency 40/30°C DIN 4702-8

up to 110,6 % within the S-CB

range

GAS CONSUMPTION

[EN437]

Values min-max:

Natural gas

G25

m³

1,54 - 6,84 1,80 - 9,14 2,12 - 11,4 3,20 - 13,7 4,18 - 17,0 5,54 - 20,4

Natural gas

G20

m³

1,32 - 5,88 1,54 - 7,86 1,82 - 9,76 2,75 - 11,8 3,60 - 14,6 4,76 - 17,6

Propane gas G31

m³

0,51 - 2,27 0,60 - 3,04 0,70 - 3,77 1,06 - 4,54 1,39 - 5,65 1,84 - 6,79

Butane gas

(B/P) G30

m³

0,39 - 1,72 0,45 - 2,29 0,53 - 2,85 0,99 - 3,44 1,05 - 4,28 1,40 - 5,15

Gas supply pressure
nom.

G25

mbar

G20

mbar

G31

mbar

30/37

G30

mbar

NOTES

Using propane or butane/propane mixtures (B/P), maximum fan speed needs to be reduced (parameter P4BD)

Min. and max. gas supply pressures according to EN437:

p nominal [mbar]

p min [mbar]

p max [mbar]

G25

G20

G31

G30

Summary of Contents for S-CB+ Series

Page 1: ...STREBEL S CB Boiler Range Models 60 80 100 120 150 180 Wall hung high efficiency condensing boiler Installation Operating Maintenance Manual 2015 07 21 v1 ...

Page 2: ......

Page 3: ......

Page 4: ...1 6 16 UNDER FLOOR HEATING 21 6 17 FLUSH THE SYSTEM WITH FRESH WATER 21 6 18 INSTALLATION EXAMPLES 21 6 18 1 Example of a standard single boiler heating circuit with low loss header 21 6 18 2 Example of a multiple boiler heating circuit with low loss header 23 7 PUMP CHARACTERISTICS 24 7 1 HYDRAULIC GRAPHS 24 7 2 PUMPS MAXIMUM ELECTRICAL POWER 27 8 FLUE GAS AND AIR SUPPLY SYSTEM 27 8 1 GENERAL 27 ...

Page 5: ...off 78 11 1 4 Water pressure 78 11 1 5 Gas type selection 78 11 1 6 Soft start option 79 11 1 7 Pump mode EC technology 79 11 2 HEATING 80 11 2 1 Controlling behaviour settings 80 11 2 2 Room thermostat on off 81 11 2 3 Room thermostat OPEN THERM 81 11 2 4 Outdoor temperature related flow control 81 11 2 5 0 10 Vdc remote flow temperature set point 81 11 2 6 0 10 Vdc Remote burner input control 82...

Page 6: ...NVERSION CASE B 98 14 3 1 General remarks 98 14 3 2 Checking and adjusting at maximum load A 60 A 80 A 100 98 14 3 3 Checking and adjusting at minimum load A 60 A 80 A 100 98 14 3 4 Checking and adjusting at maximum load A 120 A 150 A 180 99 14 3 5 Checking and adjusting at minimum load A 120 A 150 A 180 99 14 4 ADJUSTING PROCEDURES 100 15 PUTTING THE BOILER OUT OF OPERATION 101 15 1 OUT OF OPERAT...

Page 7: ...only be used in an adequately ventilated space conforming to standards in place Without written approval of the manufacturer the internals of the boiler may not be changed When changes are executed without approval the boiler certification becomes invalid Commissioning maintenance and repair must be done by a skilled installer engineer according to all applicable standards and regulations What sho...

Page 8: ... is being installed Key Approved Documents to the Building Regulations in the region of the United Kingdom that this product is being installed The Local Building Regulations and Local water by laws the gas services area and the Local Authority rec ommendations The appropriate British European Standards for the type of installation and fuel used including but not ex clusively the following standar...

Page 9: ...ctions for 0 10 VDC remote flow temperature set point control 0 10 VDC remote burner input control Outdoor temperature sensor External hot water cylinder pump or diverter valve Cascade control When using the integrated cascade control a maximum of twelve boilers can be controlled in a cascade configura tion By the use of an appropriate external control this number may be increased at will 0 10 VDC...

Page 10: ... G31 kW 13 6 60 4 15 9 80 8 18 7 100 28 3 121 37 0 150 48 9 180 Nominal input gross G30 kW 13 5 60 3 15 8 80 2 18 6 99 7 34 7 120 36 8 150 48 8 180 Nom output 80 60 C kW 12 0 53 5 14 0 71 2 16 5 88 4 24 7 106 32 6 132 43 3 160 Nom output 50 30 C kW 12 9 57 4 15 2 77 5 18 0 96 2 27 2 116 35 5 144 47 3 175 Nom output 37 30 C kW 13 5 59 8 15 7 80 1 18 6 99 5 28 1 120 36 7 149 48 5 179 Efficiency 40 3...

Page 11: ... at combustion air temperature 20 C C 85 95 Available pressure for the flue sys tem 4 Pa 200 INSTALLATION Available pressure for the installation at T 20 K mWC 3 8 1 3 1 5 1 0 0 7 0 1 T 25 K mWC 5 1 3 7 3 7 3 0 3 2 2 5 Pressure boiler min max bar 1 0 4 0 5 Max flow temperature C 90 ELECTRIC Power consumption W 355 355 355 370 600 Power supply V Hz 230 50 Protection class IPX4D NOTES 3 CO2 of the u...

Page 12: ...d Delivery Connections twin pipe Concentric Standard Delivery 60 80 100 120 60 80 100 120 FG AI flue gas air inlet 80 80 100 100 80 125 100 150 size A 112 155 112 size B 135 150 135 size C 308 N A F C R G flow condensate return gas R 1 male flexible hose Ø25 21 x 750 mm R 1 male R male ...

Page 13: ... CB 150 180 TWIN PIPE Standard Delivery CONCENTRIC Connections twin pipe Standard Delivery concentric FG AI flue gas air inlet 130 130 100 150 F C R G flow condensate return gas R 1 male flexible hose Ø25 21 x 750 mm R 1 male R 1 male ...

Page 14: ...lating with room sensor S04 016 355 Room Controller OpenTherm RC Modulating no room sensor to be used with E04 016 359 S04 016 358 External room sensor for the RC and RCH controller 5kOhm 25 C E04 016 359 Room thermostat modulating RCH with e bus interface to control one heating zone Ther mostat includes room sensor S04 016 357 EBC heating zone controller to control 2 different heating zones This ...

Page 15: ...fan that will generate noise depending on the total heat demand The boiler loca tion should minimise any disturbance this might cause Preferably mount the boiler on a brick wall There must be sufficient lighting available in the boiler room to work safely on the boiler When a boiler is positioned at the highest point of the installation the supply and return pipes must first protrude 0 5 m above t...

Page 16: ...marking the holes ensure that the suspension bracket or frame is perpendicular and the boiler does not lean forward If necessary adjust the position with the adjusting bolts at the lower rear side of the back panel see draw ing When the adjusting bolts aren t sufficient fill the gap behind the bolts to get the boiler in position The exact boiler position lies between the boiler hanging level and h...

Page 17: ... condensate can be seen flowing away e g using a funnel Any damage that might occur when the drain is not installed correctly is not covered by the warranty of the boiler There should be an open connection of the condensate hose into the sewage system A possible vacuum in the sewage system must never give the opportunity to suck on the boiler s condensate drain hose When mounting the bottom part o...

Page 18: ...ief valve is mounted between the boiler and the service valves The specifications and size of the relief valve should be determined by the installer and must comply with all appli cable regulations and boiler capacity 6 6Bypass The boiler has no internal bypass When many thermostatic valves are being used the system should have a by pass to allow an adequate flow when all thermostatic valves are c...

Page 19: ...ng failures and or damages caused by this blockage are not covered by the warranty 6 10 Water quality The pH value of the water must be within the following limits 7 5 pH 9 5 This pH value is reached with the steady conditions These steady conditions will occur when after filling the heating system pH around 7 with fresh water the water will lose its air because of the air bleeding operation and h...

Page 20: ...omatic water filling systems When using an automatic water refill system some precautions should be taken fresh water is bringing fresh oxy gen into the system like installing a water meter to measure and evaluate the total water volume that is added to the system This to detect and eliminate any water leakage as soon as possible When an automatic water refill system is used some form of logging s...

Page 21: ... has been tested on the heat exchangers and the boilers A list with the corrosion inhibitors in preventative and curative treatment for gas fired central heating boilers can be supplied by Strebel Ltd 6 16 Under floor heating When using an under floor heating system the boiler circuit must be separated from the heating circuit with a plate heat exchanger 6 17 Flush the system with fresh water The ...

Page 22: ...S CB Boiler Range Manual 22 ...

Page 23: ...S CB Boiler Range Manual 23 6 18 2 EXAMPLE OF A MULTIPLE BOILER HEATING CIRCUIT WITH LOW LOSS HEADER NON RETURN VALVE low resistance type NOT SPRING LOADED HEATING ZONE BOILER BOILER ...

Page 24: ...S CB Boiler Range Manual 24 7 PUMP CHARACTERISTICS 7 1Hydraulic graphs Boiler and pump graph S CB 60 UPML 25 105PWM Boiler and pump graph S CB 80 UPML 25 105PWM ...

Page 25: ...S CB Boiler Range Manual 25 Boiler and pump graph S CB 100 UPML 25 105PWM Boiler and pump graph S CB 120 UPML25 105 PWM ...

Page 26: ...ump graph The S CB range is equipped with high efficiency pumps in the hydraulic graph there is a minimum and maximum head for the pump This is the range in which the pump will modulate The pump speed is controlled by a PWM signal provided by the burner controller at a value causing a Delta T across the heat exchanger of 20 C at the whole burner modulation range ...

Page 27: ...ting pump the relays 1 2 or 3 may not be used for the power connection because of the inrush current of the electronics of the pump Directly connect the pump to an external power supply Control connections of an EC pump can be established in several ways set by parameter P5BN See 11 1 7 on page 79 8 FLUE GAS AND AIR SUPPLY SYSTEM 8 1General The boiler has a positive pressure flue system The availa...

Page 28: ...fore condensation at the internal air canals must be prevented When roof mounted the air supply duct needs to be protected against rain so no water will be entering the boiler 8 3Flue terminal Never use aluminium containing flue gas materials for this boiler The flue terminal duct can be made of Stainless steel in combination with T120 gaskets PP temperature class T120 Multiple boilers can be conn...

Page 29: ...essure flue gas systems the minimum requirements of the flue gas material for Eco Boilers can be determined in a designation string according to the EN1443 see table CE string flue gas material B23P European stan dard Tempera ture class Pressure class Resistance to condensate Corrosion resis tance class min requirement PP EN 14471 T120 P1 W 1 min requirement StS EN 1856 1 T120 P1 W 1 Metal liner s...

Page 30: ...eta 1 5 80 20 6 36 0 100 8 5 14 8 22 8 33 2 130 3 0 5 2 8 0 11 6 18 0 26 0 150 4 5 6 6 10 2 14 7 AIR SUPPLY PIPING Ø mm RESISTANCE Pa straight tube m 80 4 0 7 5 100 1 2 3 0 3 5 4 0 130 0 35 0 75 0 8 1 1 1 2 2 0 150 0 3 0 4 0 6 1 2 45 bend 80 2 0 3 5 100 0 6 1 5 1 7 2 130 0 2 0 4 0 4 0 5 0 6 1 0 150 0 15 0 2 0 3 0 6 90 bend 80 4 0 7 0 100 1 2 3 0 3 5 4 0 130 0 3 0 7 0 8 1 1 1 2 2 0 150 0 3 0 4 0 6 ...

Page 31: ...e m total 9 6 54 Bend 90 2 6 12 Flue outlet conical 1 0 9 0 9 Total resistance flue gas outlet 66 9 Air supply Diameter 130 mm Number Pa Pa total Straight tube m total 8 2 16 Bend 90 2 2 4 Air inlet H D 1 0 1 13 1 13 1 Total resistance air supply 33 1 Total resistance flue gas outlet and air supply 100 Pa 8 9 2 EXAMPLE B TWIN PIPE SYSTEM WITH CONCENTRIC ROOF TERMINAL 120 2m 2m 2m 2m 2m 2m Calculat...

Page 32: ...mum pipe length inlet outlet together m m 27 5 18 0 31 5 24 0 44 5 30 0 Example B boiler type S CB 60 S CB 80 S CB 100 S CB 120 S CB 150 S CB 180 Diameter air inlet mm 80 80 100 100 130 130 Diameter flue outlet mm 80 80 100 100 130 130 Concentric roof terminal mm 80 125 80 125 100 150 100 150 130 200 130 200 Maximum pipe length inlet outlet together m m 21 0 12 0 23 0 16 5 40 5 25 5 Concentric roo...

Page 33: ... S CB 100 Flue gas Diameter 100 mm Number Pa Pa total Straight tube m total 13 4 52 Bend 90 2 4 8 Bend 45 2 2 4 Flue outlet H D 1 0 1 15 2 15 2 Total resistance flue gas outlet 79 2 Calculation example with given lengths checking resistance The total resistance is less than 200 Pa This flue gas air supply system is functional ...

Page 34: ... CB 80 S CB 100 S CB 120 S CB 150 S CB 180 Diameter air inlet mm 80 80 100 100 130 130 Diameter flue outlet mm 80 80 100 100 130 130 Diam roof terminal mm 80 80 100 100 130 130 Maximum pipe length total outlet length m 36 5 21 5 46 5 27 5 49 5 30 0 Example C Vented area Air inlet Flue outlet ...

Page 35: ...gas outlet and air supply concentric 177 The total resistance is less than 200 Pa This flue gas air supply system is functional 8 9 5 EXAMPLE E CONCENTRIC FLUE GAS AIR SUPPLY PIPE WALL MOUNTED 60 3m 6m Calculation example with given lengths checking resistance Boiler type S CB 60 Concentric Diameter 80 125 mm Number Pa Pa total Adaptor conc par 80 125 1 10 10 Straight tube m total 9 9 81 Bend 90 1...

Page 36: ...entric roof terminal mm 80 125 80 125 100 150 100 150 Maximum pipe length m 13 5 6 0 12 0 7 5 Example E boiler type S CB 60 S CB 80 S CB 100 S CB 120 S CB 150 S CB 180 Diameter concentric pipe mm 80 125 80 125 100 150 100 150 100 150 100 150 Concentric wall terminal mm 80 125 80 125 100 150 100 150 100 150 100 150 Maximum pipe length m 18 5 12 5 19 0 14 0 7 0 4 0 concentric roof terminal concentri...

Page 37: ...f the connections 1 2 OUTDOOR SENSOR When an outdoor temperature sensor is connected the boiler will control the flow water temperature by using a calculated setting which is relative to the outdoor temperature PARAMETER No parameter settings needed 3 4 EXTERNAL FLOW SENSOR When a low loss header is used this sensor measures the flow temperature at the system side The sensor must be mounted on the...

Page 38: ...l input connection then a parameter change is needed 21 22 BURNER BURNING OR EXTRA BOILER OR PUMP ON OFF This contact is N O normally open When the unit starts the burner and detects the flame this con tact will be closed This contact can also be used to control an external boiler or for the switching of a pump with a separate control input connection in both latter cases a parameter change is nee...

Page 39: ...S CB Boiler Range Manual 39 9 4Electrical schematics ...

Page 40: ...9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lock Out NO Flame on NO Lock Out NO Flame on NO Pump 1 L Pump 1 N out Gnd 1 9 17 18 18 17 9 1 10 11 12 13 14 15 16 8 7 6 5 4 3 2 BURNE BURNIN 0 10 VDC On Off Stat or OpenTherm Heating Circuit 21 20 19 16 15 14 13 6 5 4 3 2 1 GENERAL BLOCKING LOCK OUT N O N O EXTERNAL FLOW SENSOR CALORIFIER SENSOR or THERMOSTAT 7 8 9 10 11 12 EXTERNAL WPS OUTDOOR SENSOR 1...

Page 41: ...N3 CN12 14 13 12 7 6 5 CN10 CN11 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MAINS L MAINS N Lock Out NO Flame on NO Lock Out NO Flame on NO Pump 3 N Pump 3 L Gas Valve L Gas Valve N Pump 1 L Pump 1 N Pump 2 3 way L NO Pump 2 3 way N open 3 way L NC 1 9 L N Mains 230 VAC L N CH System Pump P3 BURNER BURNING 0 10 VDC On Off Stat or OpenTherm Heating Circuit 34 33 32 27 26 25 21 20 19...

Page 42: ...0 22800 35 15 18300 30 171800 20 14770 25 129800 25 12000 20 98930 30 9804 15 76020 35 8054 10 58880 40 6652 5 45950 45 5522 Conversion table temperature vs resistance all sensors except outdoor sensor NTC 10k B3977 Temperature C Resistance Ω Temperature C Resistance Ω Temperature C Resistance Ω Temperature C Resistance Ω 30 175203 20 12488 70 1753 120 387 25 129289 25 10000 75 1481 125 339 20 963...

Page 43: ...h boiler on off Is also used as RESET button and ENTER button when programming Connector for connecting computer cable Button is pushed to open MENU Buttons to toggle through measured temperatures Also used for navigating through the menus and for chang ing values Button to activate service function hold for three seconds Schornsteinfeger function only for Germany Light lights when controller dete...

Page 44: ...shows 2x20 digit mes sage for three seconds Message can be set in parame ters example Company name City Country press Display shows for three seconds Heater type Time date and day example Z FG 550 13 51 US or EU 06 01 2010 Wed After this message the display shows for three seconds Software version and Cascade designation example Firmware Mk 00197 Address 0 press These three messages will also show...

Page 45: ...ed The amount of degrees diff relative to Hot water set point during night reduction PROGRAM menu In this menu one can set the CH DHW and Anti Legionnella program OUTDOOR menu In this menu one can set all Outdoor relevant parameters OPERATING HISTORY menu Shows burning hours DHW Heating etc FAULT HISTORY menu press Reading last fifteen faults only reading TIME DATE DAY menu In this menu one can se...

Page 46: ...l flow temp Sensor water temp control sensor showing the measured temperature Can be turned off by P5 BJ Explanation Actual status screen Actual status B o i l e r o f f When boiler is switched off only text in the display during this status N o d e m a n d No heat demand signal coming from the room thermostat and calorifier sensor open S t a n d b y Room thermostat calorifier sensor thermostat de...

Page 47: ...utdoor sensor T 6 F l u e 1 2 3 9 C Measured value by the flue gas sensor O p e n Shown when controller doesn t detect this sensor S h o r t e d Shown when the sensor wires or the sensor itself is shorted SCREEN 4 Temp difference between internal flow return sensor d T F l o w R e t u r n 1 2 3 9 C d T F l u e R e t u r n 1 2 3 9 C Temp difference between flue gas internal return sensor SCREEN 5 T...

Page 48: ...iler is providing heat to the cascade When the leading boiler is changed according to the set priority change time then that boiler s address will be shown first in the row of numbers Example 1 3 4 5 0 1 2 Six are boilers present and nr 3 has priority Example 2 3 4 x d 1 2 Six boilers are present and nr 3 has priority Boiler 0 is heating up an indirect DHW tank Boiler 5 is present but in a lock ou...

Page 49: ...MENU to return to the service menu Use buttons to browse through the monitor screens Press MENU to go to the operation menu of the service mode Press SERVICE to exit the service mode The unit will return to the standard operation display Maximum RPM table Model S CB 60 S CB 80 S CB 100 S CB 120 S CB 150 S CB 180 RPM Max set point 6500 6500 6500 6500 5700 5700 Max actual 6500 6500 6230 6095 5700 57...

Page 50: ...riefly again the heater will fire at 50 firing rate In this state the display shows F l u e s e r v i c e m o d e P o w e r 5 0 When the button is pressed briefly again the heater will fire at maximum firing rate In this state the display shows F l u e s e r v i c e m o d e P o w e r M a x i m u m When the button is pressed briefly again the heater will return to the normal operation mode The Scho...

Page 51: ...4 C 1 2 3 4 C Program the boiler at the control panel see the following sections Terminate programming mode by pressing MENU or ENTER and NO or YES Reactivate the boiler by pressing ON OFF for three seconds again 10 8 Setting the time date The following graphs describe how to programme the time and date of the unit Operating screen H E A T I N G b o i l e r o f f 1 2 3 4 C 1 2 3 4 C Press MENU Mai...

Page 52: ...een Press ENTER for confirmation screen when all the changes are made Confirmation screen A r e y o u s u r e C a n c e l C o n f i r m Press to cancel the changes made unit will reset Press to confirm the changes The value set in the screen when pressing enter will be shown for a few seconds After this the display returns to the normal operating screen Heating set point normal day time H e a t i ...

Page 53: ...meter P4 AA 1 2 DHW set point reduction parameter P4 AA 1 2 D H W R e d u c e 1 0 C The reduction of the DHW set point related to normal day time set point This reduction is used outside the pro grammed DHW periods parameter P4 AA 1 2 10 10Setting the timer programs Three different programs can be set with the boiler these are CH program DHW program Anti Legionnaires disease pasteurisation program...

Page 54: ...alue Press ENTER for confirmation screen when all settings are done Confirmation screen A r e y o u s u r e C a n c e l C o n f i r m Press to cancel the changes made unit will reset Press to confirm the changes The last alternation will be blinking for a few seconds and return to base menu Press MENU to exit The boiler will reset and go to the operating screen Press for next SCREEN Copy programme...

Page 55: ...linking for a few seconds and return to base menu Press MENU to exit The boiler will reset and go to the operating screen Press for next SCREEN Copy programmed day for DHW C o p y f r o m D H W M o n C o p y t o D H W T u e Press to switch between Copy from and Copy to The blinking day is selected and can be changed Press to change the selected blinking value Press ENTER for confirmation screen wh...

Page 56: ...TER for confirmation screen when all settings are done Confirmation screen A r e y o u s u r e C a n c e l C o n f i r m Press to cancel the changes made unit will reset Press to confirm the changes The last alternation will be blinking for a few seconds and return to base menu Press MENU to exit The boiler will reset and go to the operating screen Press for next SCREEN 10 11Setting the outdoor sp...

Page 57: ...urve parallel shift C The heating curve is set by the parameters Next to these setting done by the installer the end user has the free dom to influence the flow temperature by doing a parallel shift setting In this parameter the margins are set within which the user can increase and decrease the calculated flow temperature relative to the calculated flow tempera ture by the heating curve that is s...

Page 58: ... parameter 0 so the used sensor is assumed to be 12 kΩ P2 HA Outdoor sensor hysteresis C If the outdoor temperature reaches the temperature set in P5 AH warm weather shutdown the unit won t start for heating If the measured outdoor temperature drops P5 AH minus P2 HA the boiler can start up for heating again P6 BA CH user setting C The set point will never be higher than the flow temperature set i...

Page 59: ...tion screen after all changes are made Confirmation screen A r e y o u s u r e C a n c e l C o n f i r m Press to cancel the changes made unit will reset Press to confirm the changes made The time and day will start blinking for a few seconds After this the display returns to its operating screen 0 1 O u t s i d P r e s P5 AA 0 0 2 H C m i n O u T m p P5 AC 1 5 C 0 3 H C m i n F l T m p P5 AD 8 5 ...

Page 60: ...r s C h T o t 1 0 0 0 0 0 0 h r s D h w T o t 1 0 0 0 0 0 0 Top line Total burning hours for heating Bottom line Total burning hours for domestic hot water SCREEN 3 h r s C h 5 0 1 0 0 0 0 0 0 h r s C h 5 0 1 0 0 0 0 0 0 Top line Burning hours for heating while the burner was firing less than 50 Bottom line Burning hours for heating while the burner was firing equal or higher than 50 SCREEN 4 h r ...

Page 61: ...ws the last ten faults For each fault the display blinks between the two screens shown above The top line of the top screen shows the fault number and the bottom line of the top screen shows the date day and time the fault occurred On the top line of the bottom screen the fault type is displayed The bottom line shows the following SV The total amount of this fault that has occurred after the last ...

Page 62: ... for this function is OFF MAINTENANCE SETTINGS The unit can be programmed in such a way that an automatic maintenance message is displayed There are three options that can be selected A maintenance message appears after A programmed date is reached An amount of burning hours is reached An amount of ignition cycles is reached One single option can be activated or all three options ...

Page 63: ...e active maintenance option Press or to change the selected blinking option Screen Selecting of all maintenance options M a i n t e n M o d e A l l Press to set The option that is blinking can be changed using by Date for the Maintenance message Total amount of burning hours for the Maintenance message Total amount of ignition cycles for the Maintenance message After selecting one of these values ...

Page 64: ... C o n f i r m Press to cancel the changes or to confirm the changes Hereafter the boiler returns to the operating screen Screen Message after total amount of ignition cycles M a i n t e n M o d e I g n i t i o n c y c l e s Press to set The total amount of ignition cycles for the Maintenance message Press to Return to maintenance mode selection The blinking value can be changed with Press ENTER t...

Page 65: ...ed M a i n t e n M o d e M a i n t e n O f f Press ENTER to confirm the changes Confirmation screen A r e y o u s u r e C a n c e l C o n f i r m Press to cancel the changes or to confirm the changes Hereafter the boiler returns to the operating screen Note The MENU button will return the display to the operating screen BE AWARE This function is standard turned OFF We offer this programmable funct...

Page 66: ...screen H E A T I N G N o d e m a n d 1 2 3 4 C 1 2 3 4 C Press MENU Select User lock using and press ENTER User lock screen S e t U s e r l o c k 0 0 The 0 is now blinking selected and can be changed Use to change the value 0 User lock function OFF 1 User lock function ON Press ENTER for the confirmation screen after the selection has been made Confirmation screen A r e y o u s u r e C a n c e l C...

Page 67: ...t no 7 P5CJ Legionella hold time 0 off min L e g i o h o l d no 8 P2KI CH interrupt by Legionella 0 yes 1 no L e g i o i n t r no 9 P2LC Regulation temperature offset DHWd C D H d s c O f f 2 yes A P2MN Proportional range DHWd modulation C D H d s c P r b 2 3 no B P2LD Regulation temperature hysteresis DHWd C D H d s c D i f 2 yes C P2MO integration time DHWd modulation s D H d s c I n t 2 3 no D ...

Page 68: ...ing A 2 H E s o f f 1 3 4 C CH supply temperature setting This parameter is the offset of the programmed CH temperature Menu A Heating A 3 H E s P r b 1 3 2 5 C Select the CH supply temperature control This parameter is the proportional range of the selected CH supply temperature Menu A Heating A 4 H E s c D i f 1 3 1 0 C Select the CH supply temperature control This parameter is the hysteresis of...

Page 69: ...tivate external time controller 0 Off 1 On Connect to 13 14 Contact closed daytime setting Contact open night time setting Menu B Hot water B 1 D H i p m p t w v 1 Hot water function of the boiler by 0 pump 1 3 way valve Menu B Hot water B 2 D H i f l o w L O 2 5 C Hot water function of the boiler This parameter is the CH supply temperature LOW level with an indirect hot water de mand Menu B Hot w...

Page 70: ...teurisation function of the boiler Menu B Hot water B 8 L e g i o i n t r 0 Pasteurisation function of the boiler This parameter controls if the CH demand can be interrupted by the pasteurisation function of the boiler 0 Yes 1 No Menu B Hot water B 9 D H d s c O f f 2 4 C Function for the direct hot water boiler This parameter is de off set of the selected HW temperature of the boiler Menu B Hot w...

Page 71: ...iler tank This parameter is the hysteresis of the selected HW tem perature of the calorifier tank Menu B Hot water B G D H i d e t g r a d 3 C Function for the indirect hot water supply of the boiler tank This parameter detects an an accelerated hot water de mand when a larger water amount is being used Menu C Cascade C 1 M a x C a s c U n t 1 1 Function for the cascading of the boiler s This para...

Page 72: ...ascade C 7 C o m F l u N u m 0 Function for the cascading of the boiler s This parameter determines the number of cascaded boilers that are implemented with a common flue system Menu D General D 1 0 1 0 V c o n t r 0 Function for the external control of the boiler by using a 0 10 Volt signal Connections 15 16 0 No external control 1 Control based on temperature setting 2 Control based on power set...

Page 73: ...Menu D General D 7 c o n f i g Function for the setting of the water pressure Up to 4 bar a sensor is used up to 6 bar a switch 0 off 1 sensor 2 switch Menu D General D 8 g a s t y p e Function to select the gas type 0 G20 G25 and for Poland G27 G2 350 1 G31 2 B P According to EN437 Menu D General D 9 c o n f i g Function for setting the soft start option 0 normal start up 1 reduced fan ramp up sp...

Page 74: ...nnection sensor Display message F1 F l o w h i g h T e m p p u m p o n 9 9 9 5 h r s Reason Flow temperature exceeds the limit which has been set in the parameters Display message F1 R e t u r n h i g h T e m p p u m p o n 9 9 9 5 h r s Reason The maximum return temperature as set in the parameters is exceeded Display message F2 L a c k o f w a t e r p u m p o n 9 9 9 5 h r s Reason The general re...

Page 75: ...rammed Display message F13 P a r a m H a r d w f a u l t p u m p o n 9 9 9 5 h r s Reason Fault during programming of the boiler software parameters Display message F15 C l i x o n F a u l t p u m p o n 9 9 9 5 h r s Reason Heat exchanger fuse or burner door clixon exceeded maximum allowed value Display message F16 F l o w R e t u r n d t f a u l t p u m p o n 9 9 9 5 h r s Reason Temperature diff...

Page 76: ... limit as set in the parameters Display message F l o w t e m p h i g h 9 9 9 5 h r s Reason Flow temperature has exceeded the blocking temperature as set in the parameters Display message F l o w t e m p h i g h 9 9 9 5 h r s Reason Flow temperature has exceeded the blocking temperature which is set in the Display message R e t u r n t e m p h i g h 9 9 9 5 h r s Reason Return temperature has exc...

Page 77: ...it is activated during operation contact 7 8 10 17 3 MESSAGES The following graphs describe the messages at the boiler display Depending on the selected and activated options for the boiler it is possible that some messages will show up at the display of the boiler For example a mainte nance message after a certain programmed date has been reached The boiler will operate independently of these mes...

Page 78: ...RATURE DISPLAY ON OFF Selection for showing the measured temperatures at the operation display of the boiler P5BJ Temperature display 1 on display D5 The measured temperature at the operation display 0 not visible 1 visible 11 1 4 WATER PRESSURE P4AD pressure 0 off 1 sensor 2 switch When the water pressure exceeds 4 bar a pressure switch must be used instead of the sensor suitable till 4 bar With ...

Page 79: ...p speed I 2 reduced fan ramp up speed II 11 1 7 PUMP MODE EC TECHNOLOGY When using a pump with Electronic Commutation technology and start stop function with a separate control con nection this parameter determines the relay for switching the pump on and off P5 BN Pump mode 0 modulating 1 relay1 2 relay2 3 relay3 display DA Do not use the 230 Vac relay for the main power supply of the pump but dir...

Page 80: ...ernal flow sen sor S3 this sensor will be used P5 AP Proportional range single heating boiler display A3 The proportional range for controlling the flow temperature of the boiler This function is active when the unit is controlled by the internal flow sensor S1 and used for single units When controlling cascaded units with an exter nal flow sensor S3 this sensor will be used P2 MI Blocking offset ...

Page 81: ...d by connecting an external 0 10 Vdc signal to the boiler connections 15 16 P5 BB Analogue input config 0 off 1 temperature 2 power display D1 This parameter must be set at 1 so the supplied 0 10 Vdc signal will control the temperature set point Possible settings are 0 0 10 V control off 1 0 10 V temperature set point control active 2 0 10 V burner input control active P5 AI Minimum temperature 0 ...

Page 82: ...trol active See also the following graph for the relation between the burner input and the control signal 11 2 7 TIMER CONTACT FUNCTION This function can be activated when using an external night reduction timer for heating This timer contact can be connected to the thermostat terminals connections 13 14 P5 AB Timer contact 1 on display A9 When this parameter is activated and the thermostat termin...

Page 83: ...d or in case of a 3 way valve this valve will turn to the position to supply heat to the tank coil s In case of a heat demand and hot water demand the central heating pump will switch off until the hot water demand ends P4 AB DHW pump Config 0 Pump 1 TWV display B1 With this parameter it is programmed if the flow to the indirect water tank calorifier is controlled by a pump 0 pump or a 3 way valve...

Page 84: ... that the boiler by supplying a lower flow temperature to the heat exchanger of the calorifier can stay in its condensing mode if the temperature is low enough and thus operate at a higher efficiency level When it takes too long P5 CL to heat up the tank with this low temperature mode the flow temperature set point will change to a higher setting to make sure that the hot water set point is reache...

Page 85: ...boiler will switch to operate for CH demand even when there is still a DHW demand P5 CM Max runtime CH during DHW demand The programmed period for the boiler to operate for CH demand in case of a DHW demand After this period the boiler will switch to operate for DHW demand even when there is still a CH demand The standard factory setting for this function is that the hot water demand always has pr...

Page 86: ... the end of the heat demand before the anti Legionnaires disease function starts The standard factory setting for this function is OFF The settings of these parameters P5 CI P5 CJ and P5 CD must be programmed according to the national and or local anti Legionnaires disease preventing regulations The setting of these parameters can only be done by the manufacturer supplier of the boiler or by a tec...

Page 87: ... S04 016 586 This software is used for programming but also shows all measured temperatures and cascade behaviour during operation and ser vice fault history 11 4 1 PARAMETER SETTINGS FOR CASCADED BOILERS Before programming the cascaded boilers make sure that all boilers are connected wire with each other Use connection 17 and 18 of each boiler Remind do not alternate these connections so always c...

Page 88: ...e cascading of the boiler s This parameter sets the function of the boiler at a cascade alignment 0 Single Slave unit 1 Master unit Menu C Cascade C 2 B u s a d d r e s s 0 Function for the cascading of the boiler s This parameter determines the address of the boiler for the total cascading control Master 0 Slave1 1 etc When the correct parameter is set this must be confirmed at the confirmation s...

Page 89: ...ast will be switched off first see table below To distribute operating hours equally over all boilers the working sequence of the boilers will change every two hours Hour Switching ON sequence Switching OFF sequence X Master Slave 1 Slave 2 Slave 3 Slave 4 Slave 5 Slave 6 Slave 7 Slave 7 Slave 6 Slave 5 Slave 4 Slave 3 Slave 2 Slave 1 Master X 2 Slave 7 Master Slave 1 Slave 2 Slave 3 Slave 4 Slave...

Page 90: ... to prevent oxygen entering the system through these leaks The boiler has an automatic air vent situated on top This vent must be opened during the filling of the boiler and the heating system to make sure that no air oxygen is trapped in the heat exchanger of the boiler NOTICE Check that the screw cap has been loosened at least one twist Shortly after putting the boiler into operation check the w...

Page 91: ...e T 2 T 1 h i g h 9 9 9 5 h r s Reason Temperature difference T2 T1 has exceeded the blocking value as set in the parameters Display message d T B l o c k 9 9 9 5 h r s Reason Temperature difference T1 T2 has exceeded the blocking value When the T1 T2 value exceeds the lock out setting the boiler will switch off and the following lock out code will be shown at the display Display message F16 F l o...

Page 92: ...e boiler display will show the following graph Display message H E A T I N G N o d e m a n d 1 2 3 4 C 1 2 3 4 C Reason Boiler is active but there is no heat demand The display describes The actual operation for heating or hot water If there is a heat demand activated The temperature setting The temperature measured When mounting the bottom part of the siphon before commissioning the boiler and or...

Page 93: ...CB 180 must be equipped with B J class valves see table 3 and see the pictures on page 96 Set up of this chapter First all necessary values are given in three tables in 14 1 1 A drawing of the gas valve s and setting screws is given in 14 1 2 on the next page In 14 1 4 a general scheme conform which the adjustments must be carried out is presented in table form After that in 14 2 and 14 3 a thorou...

Page 94: ...ent S CB 150 2 5 B J S04 000 393 S CB 180 4 5 B J S04 000 393 Both gas valves must be opened this number of turns Table 4 Contact you boiler supplier for the right settings when converting to a not mentioned type of gas Pressure adjustment settings LEFT valve boiler type p out pressure at gas valve nat gas G20 G25 propane G31 butane G30 B P S CB 120 2 to 0 Pa 4 to 2 Pa 5 to 3 Pa S CB 150 2 to 0 Pa...

Page 95: ... screw 2 Screw 2 is the SMALL screw immediately next to the pilot screw 60 80 100 P I L O T 9 I IN OUT AIR IN EV2 EV1 P I L O T 9 I IN OUT AIR IN EV2 EV1 3 1 2 2 1 3 150 180 120 P I L O T 9 I IN OUT AIR IN EV2 EV1 P I L O T 9 I IN OUT AIR IN EV2 EV1 P I L O T 9 I IN OUT AIR IN EV2 EV1 P I L O T 9 I IN OUT AIR IN EV2 EV1 3 1 2 3 1 2 4 1 1 4 ...

Page 96: ... Boiler Range Manual 96 14 1 3GAS VALVE CLASSES A C AND B J B J ONLY FOR POLAND These pictures show the difference between an A C and a B J valve Notice the class being denoted on the ID plate of the valve ...

Page 97: ...RIGHT screw 2 turn extra setting at maximum load procedure 1 set burner at maximum load measure CO2 at flue gas outlet use RIGHT screw 2 to match value with table 1 CO2 2 CO2 2 setting at minimum load continue only S CB 120 150 180 set burner at minimum load use LEFT screw 1 to match p out with table 4 procedure 2 set burner at minimum load measure CO2 at flue gas outlet use RIGHT screw 1 to match...

Page 98: ...deviation from the table values O2 0 2 14 3 2 CHECKING AND ADJUSTING AT MAXIMUM LOAD S CB 60 S CB 80 S CB 100 The boilers S CB 60 S CB 80 and S CB 100 all have single gas valves see the drawings on page 94 First turn setting screw 2 of the gas valve clockwise until you feel resistance This means that the valve is closed do not try to tighten the screw any further Now turn screw 2 counter clockwise...

Page 99: ... H E A T I N G S e r v i c e 2 6 1 2 3 4 C 1 2 3 4 C Boiler is activated and operates at service mode at 26 minimum See table 4 for pressure settings p out gas valve for the used boiler and gas type Use screw 1 on the left hand gas valve to adjust the measured pressure at p out to the right value according to table 4 Be sure the manometer has been zeroed out prior to making this setting Below the ...

Page 100: ...for adjusting Decrease CO2 percentage CO2 2 Turn screw 2 right clockwise Increase CO2 percentage CO2 2 Turn screw 2 left counter clockwise The service operation of the boiler will be active for 40 minutes After this period the boiler will return to normal operation Procedure 2 adjust at minimum load In case B gas conversion or replacement of gas valve consult 14 3 before starting procedure 2 below...

Page 101: ...ional and so are both recirculation protection if applic able and frost protection NOTICE Pump 3 CH pump is switched OFF but this is NOT the case when the boiler is in a cascade To reactivate the boiler switch on the burner by pressing ON OFF for six seconds again The frost protection module can still activate the burner To prevent this switch off this protection or put the boiler in power off mod...

Page 102: ...fety device component that generates the fault LOCK OUT CODES Having a lockout means that the boiler needs a manual reset to start operating again When the boiler is in lockout the backlight of the display is blinking on and off Explanation 9 9 9 5 h r s time elapsed after fault message Explanation P u m p 1 o n status of the pump during fault Display message F0 F l o w s e n s o r e r r o r p u m...

Page 103: ...there is no medium water present to transfer heat from combustion to the sensor The lack of water can cause this fault when the unit is firing Corrective action Make sure there is water present in the unit before firing Display message F3 R e t u r n s e n s o r e r r o r p u m p o n 9 9 9 5 h r s Reason Return sensor is not detected by the boiler PCB Cause Bad wiring connection in the return sens...

Page 104: ...t Bleed all air from the unit so the heat from combustion can be transferred to the water and won t disappear through the flue system Cause Heat exchanger failure Corrective action This is an unlikely situation but when there is severe damage to the heat exchanger the combustion product will not be able to transfer all heat to the system water The heat that is not transferred will convert to an in...

Page 105: ... of unit Check power supply Voltage must be 230 Vac nom Check the state of the sparkplug cap and replace if necessary Display message F9 F l a m e l o s t p u m p o n 9 9 9 5 h r s Reason Flame signal lost during operation Cause Bad gas supply pressure Corrective action Be aware that the specified gas pressure must be met during all operation conditions Check if all gas valves in the supply line a...

Page 106: ...ctive action Check the ignition ionisation electrode and make sure it is clean or replace it Check the power supply voltage for a correct polarity Check the power supply for bad frequency or voltage peaks Check external wiring for voltage feedback Check the internal wiring for bad connections Check if the gas valve is closing correctly Replace the burner control Display message F11 F a n s p e e d...

Page 107: ...d check that the flue is not blocked If heat exchanger is clean reset manually the clixon itself and reset the boiler Display message F16 F l o w R e t u r n d t f a u l t p u m p o n 9 9 9 5 h r s Reason Temperature difference between flow and return exceeds limi tation value or Heatexchang at Risk has occurred 3 times Cause The water flow through the unit is too low Corrective Action Check funct...

Page 108: ... the condensate flow and clean the siphon if necessary Check the condensate drain hose between the siphon and the condensate drain point in the external installation Condensate must be able to flow freely Cause The condensate drain hose must have an open connection to the external system If not pressure fluctuations in the building drainage system can have effect on the pressure in the heat exchan...

Page 109: ... has exceeded the blocking temperature but it has not exceeded the lock out value Cause Systems that pre heats the boiler return temperature too much high Corrective action Reduce pre heat temperature of external heat source Cause The need for heat in the system suddenly drops causing hot return water to the boiler Corrective action Dampen external heating system control to prevent sudden boiler t...

Page 110: ...t demand Immediately opening and closing of the external thermostat Check switching differential of the ON OFF thermostat Controller settings need to be changed Be aware that the standard settings work fine for all common systems When anti cycling is active because of immediate heating or cool ing of the controlled water flow temperature it concerns an unconventional system Display message W a t e...

Page 111: ...s that might restrict the water flow through the unit Check for an external system pump that influences the flow through the unit Check if the system resistance exceeds the spare capacity of the unit pump Make sure the heat exchanger is clean Heat exchanger fouling partly blockage will increase the resistance causing the water flow to drop Display message G e n B l o c k 9 9 9 5 h r s Reason Gener...

Page 112: ... to remove this message Display message N e e d s M a i n t e n a n 0 0 I g n i t i o n c y c l e s h r s Reason Maintenance option of total amount of ignition cycles has been reached Display message N e e d s M a i n t e n a n 0 0 D a t e h r s Reason Maintenance option of the date has been reached Display message N e e d s M a i n t e n a n 0 0 B u r n i n g h o u r s h r s Reason Maintenance op...

Page 113: ...rding to the maintenance procedures If there is doubt whether the boiler is operating with the correct water and or combustion air quality it is advised that a first check is already executed after six months This check serves to determine the frequency of the future services The maximum interval between two services is a year INSPECTION AND MAINTENANCE MUST BE EXECUTED FOR A SAFE AND EFFICIENT OP...

Page 114: ...ve the six M6 nuts the ignition cable and the thermal fuse cables After this take out the complete burner unit by moving it forward out of the boiler housing NOTICE Watch out not to damage the burner plate insulation during this operation While removing the complete burner unplug both of the electrical and controlling cables of the fan After all this dismantle the air gas mixing box on the suction...

Page 115: ...ange Manual 115 When these gaskets have changed colours at some parts the rubber has cured and or has damages these gas kets must be replaced Notice only use the gaskets that are supplied by the boiler manufacturer ...

Page 116: ...er maintenance the siphon must ALWAYS be completely filled with water This is a safety measure the water in the siphon keeps the flue gases from leaking out of the heat exchanger via the condensate drain Heat exchanger and burner room After the removal of the complete burner unit check if there is any debris and dirt in the heat exchanger The coils of the heat exchanger can be cleaned by using a n...

Page 117: ...f that the door is well positioned with res pect to the threaded studs before pushing it onto the exchanger Now keep the burner door firmly in place by pushing the gas air nose with one hand at the middle at point A Then turn tighten the flange nuts with the other hand as far as possible onto the threaded studs Now the burner door is in place and the nuts can be tight ened with a torque key Tighte...

Page 118: ...it with timer 13 14 S04 016 355 No parameter change needed System Type 2 Code 2 Name Wire terminal Order nr P1 built in boiler pump P3 optional heating pump 25 26 27 place bridge 13 14 OS outdoor temperature sensor 1 2 E04 016 585 No parameter change required System Type 3 Code 3 Name Wire terminal Order nr P1 built in boiler pump P3 optional heating pump 25 26 27 RT modulating room unit with time...

Page 119: ... 26 27 RT Modulating Room unit with timer 13 14 S04 016 355 T Calorifier ST Calorifier thermostat or tank sensor 5 6 S04 016 303 P2 HWS Primary Pump 29 30 31 OS Outdoor temperature sensor 1 2 E04 016 585 SNV Non Return Valve Parameter change required System Type 6 Code 6 Name Wire terminal Order nr P1 built in boiler pump P3 optional heating pump 25 26 27 RT modulating room unit with timer 13 14 S...

Page 120: ...sor 1 2 E04 016 585 Parameter change required System Type 8 Code 8 Name Wire terminal Order nr P1 built in boiler pump P3 optional heating pump 25 26 27 RT modulating room unit with timer 13 14 S04 016 355 T calorifier P2 HWS primary pump 29 30 31 ST calorifier thermostat or tank sensor 5 6 S04 016 303 OH low loss header FS flow temperature sensor 3 4 E04 016 304 SNV non return valve low resistanc...

Page 121: ...1 2 E04 016 585 Parameter change required For the cascade installations see the special Cascade Manual System Type 10 Code 10 Name Wire terminal Order nr P1 built in boiler pump P3 optional heating pump 25 26 27 RT modulating room unit with timer 13 14 S04 016 355 SNV non return valve low resistance type OH low loss header FS flow temperature sensor 3 4 E04 016 304 OS outdoor temperature sensor 1 ...

Page 122: ... non return valve low resistance type P2 HWS primary pump 29 30 31 T calorifier ST calorifier thermostat or sensor 5 6 S04 016 303 OH low loss header FS flow temperature sensor 3 4 E04 016 304 OS outdoor temperature sensor 1 2 E04 016 585 Parameter change required P1 P1 P1 SNV SNV SNV P2 ST T SNV SNV OS RT P3 P1 OH FS SNV HEATING ZONE BOILER master BOILER slave 1 BOILER slave 2 BOILER slave 3 ...

Page 123: ...ic graphs 24 hysteresis 80 ignition 113 indirect hot water calorifier 83 inspection maintenance 113 installation examples 21 118 ff installation of the Ambassador 15 installing a strainer and or dirt sepa rator 19 introduction 9 legonnaires disease 53 85 low loss header 18 21 90 low high flow temperature to tank coil 84 low water level protection 15 Ls and Lw gases 93 ff 96 maintenance 113 master ...

Page 124: ...S CB Boiler Range Manual 124 ...

Page 125: ...amberley Surrey GU16 7PB T 01276 685422 F 01276 685405 E info strebel co uk I www strebel co uk Further information on our complete product range is available from our website CAST IRON CONDENSING STEEL SHELL WATER HEATERS RENEWABLES FLUES ACCESSORIES RADIATORS ...

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Strebel S-CB+ Series, Installation Operating & Maintenance Manual

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