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 STREBEL 

CIS 

BOILERS 

BOILER INSTALLATION INSTRUCTIONS FOR    STREBEL 

CISM 

BOILERS 

 
INSTALLATION  INSTRUCTIONS 
 
 
General Instructions: 

 
The STREBEL  CIS & CIS boilers are special boilers for light oil or gas-
fired (forced) burners. They can be fitted in hot water heating 
installations or low pressure steam installations, depending on the type. 

 
Operating Conditions: 

 
 Hot water Heating installations boiler type  

STREBEL CIS 

       STREBEL 

CISM 

 
Maximum high limit temperature 110ºC 
Maximum Operating Temperature 95

°

C  

Maximum working pressure 4 bar 
 
Please note all relevant instructions when assembling the boilers. 
 
The Installation: The connecting and initial setting in operation should 
be carried out by a qualified heating specialist. 
The boiler base is to be constructed in accordance with our diagrams. 
 
 

Advantages of the STREBEL CIS AND CISM: 

 
1. 

Long life of cast iron boiler body. 

2. 

High efficiency of operation. Efficiency of combustion is higher 
than 90.5 % for all kinds of fuels. 

3. 

Possibility of delivery with burner. 

4. Modern 

design. 

5. Signalling 

of 

operation 

and defect of boiler. 

6. 

It is possible to order a special variation of the boiler allowing a 
water temperature of 115ºC (standard delivery is with boiler 
water temperature up to 95ºC). 

7. 

The ability to use a modular arrangement of connection. 

8. 

Delivery fully assembled or in part form according to customer 
requirements is available. 

9. 

Door can be mounted to swing from either side (must be 
specified in order). 

10.  Easily visible sight glass for viewing flame or  for reading 

combustion chamber pressure. 

STREBEL CIS BOILER 

V.1 - 03.08 

Summary of Contents for CIS

Page 1: ...a qualified heating specialist The boiler base is to be constructed in accordance with our diagrams Advantages of the STREBEL CIS AND CISM 1 Long life of cast iron boiler body 2 High efficiency of operation Efficiency of combustion is higher than 90 5 for all kinds of fuels 3 Possibility of delivery with burner 4 Modern design 5 Signalling of operation and defect of boiler 6 It is possible to orde...

Page 2: ...7 BOILER ASSEMBLY BOILER BLOCK 8 9 FIXTURES 10 BURNER DOOR 10 UPPER FLUE WAY DOOR 10 BOILER JACKETS 10 FLUE HOOD 10 FLOW AND RETURN CONNECTIONS 10 INSTRUMENT CONTROL PANEL ASSEMBLY DESCRIPTION OF INSTRUMENT CONTROL PANEL 12 ASSEMBLING THE BURNER 12 INSTRUMENT CONTROL PANEL WIRING DIAGRAM 13 INSTRUMENT CONTROL PANEL TERMINAL DIAGRAM 14 BEFORE STARTING BOILER BURNER 15 FAULT FINDING 15 MAINTENANCE 1...

Page 3: ... the front The basic bars can be extended as necessary 3 The pulling up flanges at the intermediate section or front section are pushed over the basic bar screw end from the front 4 The Stop pins are inserted at the back through one of the transverse borings of the pulling up bar 5 The pulling up nuts are screwed onto the basic bar screw end from the front until they take up the slack on the pulli...

Page 4: ... ºC 90 Combustion Chamber Pressure mbar 2 Approx Flue Gas Temp ºC 185 Flue Gas Volume kg sec 0 053 0 065 0 077 0 088 0 100 0 112 0 124 0 136 0 148 0 149 Water Volume of Boiler litres 56 4 65 4 74 4 83 4 92 4 101 4 110 4 119 4 128 4 137 4 Combustion Chamber Volume cm 81 79 100 73 119 68 138 62 157 56 176 51 195 45 214 39 233 33 252 27 Hydraulic Resistance 10 C T mbar 0 20 0 24 0 25 0 31 0 37 0 43 0...

Page 5: ...TREBEL CIS Page 5 V 1 03 08 STREBEL CIS Series Connection Dimensions 1185mm 125mm Flue spigot 220mm outside diameter Flow Return connections 80mm I d pipe Mating weldneck flanges supplied STREBEL CIS BOILER 80mm 275mm 670mm 95mm 945mm 1355mm ...

Page 6: ...on Chamber Pressure mbar 0 9 1 4 2 2 3 2 5 6 2 Approx Flue Gas Temp ºC 165 190 Flue Gas Volume kg sec 0 088 0 100 0 120 0 135 0 156 0 180 Water Volume of Boiler litres 252 277 302 327 352 377 Combustion Chamber Volume cm 314 347 381 414 449 485 Hydraulic Resistance 20 C T mbar 0 90 1 35 1 90 2 60 3 34 4 20 10 C T mbar 3 40 3 90 5 30 8 60 12 40 16 70 Dimensions Height mm 1237 Width mm 904 Depth mm ...

Page 7: ...00mm allowing free movement to the rear of the boiler again for servicing purposes These areas around the boiler must be kept free from debris especially free from combustible materials Components required Number of sections front rear and from 3 to 12 intermediate sections according to boiler size Boiler nipples 8 to 26 according to boiler size Boiler sealing mastic Nipple jointing oil Tie bars I...

Page 8: ...ple ports must align exactly at all stages of the as sembly An inclined inserted nipple leads to leakage A boiler section is built on basically in three stages In addition certain specific points should be observed at each stage Stage 1 Drive nipple into boring with care Inspect nipple and boring for damage Smear linseed oil sealing compound over nipple and boring Gently drive nipple into flow and...

Page 9: ...nuts and ratchet spanners tighten the starting nuts evenly C The clearance between the two sections must be equal when pulling up If clearance is unequal insert a flat chisel in the narrower point and continue pulling up until clearance is equal again Avoid using excessive force and smooth out excess mastic Add on only one section at a time in each case Further sections are added accordingly 7 On ...

Page 10: ... FOR STREBEL CIS Page 10 V 1 03 08 Front view showing the first three intermediate sections after pulling up Front view showing the complete boiler block without the burner door or flue pass door Rear view of the complete boiler block ...

Page 11: ... on the lower part of the front section I 4 Place burner door with insulation onto the eyelets and insert hinge pins 12 x 63 mm 5 Close burner door check alignment and tighten nuts M12 with washers 6 Attach burner flange plate onto burner door 7 Repeat procedure swapping eye bolt fixings with threaded bolts fitting the hinge on the right hand side if required Upper flue way door Use the same proce...

Page 12: ...FOR STREBEL CIS Page 12 V 1 03 08 Completed boiler block with burner door and flue pass door hinged on the right Front view showing the side jackets and the doors bolted closed Top view showing insulation prior to fitting the top jacket ...

Page 13: ...he slotted hole in the upper jacket to the control panel 5 Ensure unused holes in the control panel casing are plugged with rubber stoppers WARNING The length of the wires should be such that there is enough wire to fully open and close the burner door Assembling the burner 1 Only have the burner commissioned by a qualified combustion engineer Cables and pipes for electricity and oil should be fit...

Page 14: ...RATURE LIMIT INDICATION LAMP 1 7 BOILER CONTROL THERMOSTAT STAGE 2 1 8 BURNER CONNECTORS 1 9 ROOM THERMOSTAT IF ROOM THERMOSTAT IS NOT FITTED LINK TERMINALS 9 10 T1 CONTROL CIRCUIT FEED T2 CONTROL CIRCUIT RETURN TO BOILER S3 BURNER LOCK OUT LAMP S4 STAGE 2 INDICATOR LAMP B4 HOURS RUN METER STAGE 1 B5 HOURS RUN METER STAGE 2 T6 HIGH LOW CONTROL CIRCUIT FEED T7 HIGH LOW CHANGEOVER CONTROL CIRCUIT T8...

Page 15: ...ERATURE LIMIT INDICATION LAMP 1 7 BOILER CONTROL THERMOSTAT STAGE 2 1 8 BURNER CONNECTORS 1 9 ROOM THERMOSTAT IF ROOM THERMOSTAT IS NOT FITTED LINK TERMINALS 9 10 T1 CONTROL CIRCUIT FEED T2 CONTROL CIRCUIT RETURN TO BOILER S3 BURNER LOCK OUT LAMP S4 STAGE 2 INDICATOR LAMP B4 HOURS RUN METER STAGE 1 B5 HOURS RUN METER STAGE 2 T6 HIGH LOW CONTROL CIRCUIT FEED T7 HIGH LOW CHANGEOVER CONTROL CIRCUIT T...

Page 16: ... due to excess temperature Maintenance Clean the boiler regularly proceed as follows Turn off mains switch and control Open burner door Clean heating gas flue ways and combustion chamber Close burner door and tighten nuts firmly Never tap water from the boiler for domestic use If the system is to be out of operation for an extended period of time clean the boiler thoroughly spray it out with a mix...

Page 17: ...REBEL LTD 1F ALBANY PARK INDUSTRIAL ESTATE FRIMLEY ROAD CAMBERLY SURREY GU16 7PL TELEPHONE 01276 685422 FAX 01276 685405 E mail address info strebel co uk Website www strebel co uk THE COMPANY RESERVES THE RIGHT TO CHANGE SPECIFICATIONS AND DIMENSIONS WITHOUT NOTICE E O E ...

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