Strebel Ca 7s Bedienungsanleitung

Page 1

23/03/01

Ca 7s and BCa 7s

61-235 kW

INSTALLATION AND

OPERATING

INSTRUCTIONS

Page 2

23/03/01

CONTENTS:

Dimensions for Ca7s and BCa7s boilers.

General specification

Boiler room clearance requirements

Boiler block assembly

Pulling up the sections

Boiler block assembly & connections

Ca7s Jacket assembly

Calorifier assembly

BCa7s Jacket assembly

Continued

Electrical connection and Instrument control panel

Continued

Control module options

Control module diagrams

Installation of electronic control modules

Terminal wiring diagram

Schematic wiring diagram

Important notes & burner connection information.

PAGE:

3 & 4

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23/03/01

General Specifications

The STREBEL Camino 7s is a special boiler for oil or

gas fired pressure jet burner.

In the BICALOR construction a calorifier for the

supply of hot water is built onto the boiler.

CSH-S type calorifiers are manufactured from 1.4571

high tensile steel with an incorporated heating coil of

galvanised copper ribbed pipe.

Triple pass block of cast iron sections.

The first pass is the combustion chamber. From there

the flue gases pass between the rear section and the last

intermediate section through the second pass to the

front of the boiler. They are then diverted into the third

pass and flow back to the rear through the flue spigot

into the chimney.

Flue baffles of cast iron can be introduced into the flue

passes in order to influence the flue gas temperature

depending on chimney conditions.

The boiler can be used with an oil or gas burner.

Brief description.

•Corrosion resistant block of cast iron sections.

•Triple pass boiler with optimised use of energy.

•High efficiency.

•Built-in instrument panel with multiple control

possibilities and retro-fit control options.

•Easy erection and cleaning.

•Modern design.

Operating conditions

Boiler:

Maximum operating temperature up to 110ºC

Maximum operating temperature up to 120ºC

depending on technical safety of the equipment.

Maximum operating pressure 4.0 bar

Maximum test pressure 5.2 bar

Min thickness = 60mm

A B

Ca 7s-4 965 810

Ca 7s-5 1115 810

Ca 7s-6 1265 810

Ca 7s-7 1415 810

Ca 7s-8 1565 810

Ca 7s-9 1715 810

Ca 7s-10 1865 810

Dimensions

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

Calorifier:

Maximum operating pressure 10 bar

Maximum test pressure 13 bar

The boiler can be delived in individual sections

or as a boiler block. The accessories are packed

seperately. There are different orders of

assembly depending on the condition of supply.

when assembling and connecting the boiler, all

relevant instructions should be observed.

The boiler is to be erected on a base, or a level

floor which is capable of supporting the weight

of the boiler, water content and any ancillary

equipment. Refer to base details opposite.

Assembly, connections and the initial set-up

operation should be carried out by a qualified

heating engineer.

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ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

Boiler Dimensions

Ca 7s - Dimensions

Boiler LK mm Tmm

Ca7s-4 865 555

Ca7s-5 1015 705

Ca7s-6 1165 855

Ca7s-7 1315 1005

Ca7s-8 1465 1155

Ca7s-9 1615 1305

Ca7s-10 1765 1455

KEY:

1.1 Boiler Flow 130mm NW65

2.1 Boiler Return 130mm NW65

35.1 Boiler Drain 3/4”

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23/03/01

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

BCa 7s - Dimensions

LK Calorifier Type CSH-

Boiler 240S 300S 360S 500S

LK mm mm mm mm mm

Ca7s-4 865 1175

Ca7s-5 1015 1175 1475

Ca7s-6 1165 1475 1625

Ca7s-7 1315 1475 1625 2075

Ca7s-8 1465 1625 2075

Ca7s-9 1615 2075

Ca7s-10 1765 2075

1.1 Boiler flow 130mm NW65

2.1 Boiler return 130mm NW65

10 Primary pump 1x230V 1¼”

33 Primary connection pipe (1¼”*) 1½”

34 Return connection pipe (1¼”*) 1½”

35 Air vent 3/8 “

35.1 Boiler drain off ¾”

35.2 HWS drain off ¾”

38 HWS water connection flow (1½”*) 2”

39 Cold water connection (1½”*) 2”

40 Circulation connection ¾”

44.1 Non return valve

* Available for calorifier CSH 240S

KEY:

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23/03/01

Diagram showing clearances required in boiler room.

The clearance details shown above are required for access to the boilers for maintenance purposes. Slight

variations may apply, depending on the specific installation.

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

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23/03/01

Once assembled, the boiler block is to be secured with

the tie bars (2 at the top, and 2 at the bottom). Prior to

screwing nuts up ensure the two disc springs (5)&(6)

are slotted on with concave sides facing each other.

The nuts can now be tightened until the disc springs

flatten.

The burner door hinges should now be fitted on the

left or right hand side of the front section depending

on requirements. Ensure the eyelet screws (door

hinge) are at the same depth and when the door is

closed it should press flat with the front section.

Boiler Block Assembly

The boiler block is assembled by ‘pulling-up’ each

section in turn starting from the rear section (1). All

other sections (2)(3)(4) are mounted individually

using the pulling-up tools.

One face of the adjoining sections must have a length

of mastic sealing strand placed into the mastic groove.

Each of the boiler nipples must be inspected to ensure

there is no damage apparent. The nipples and nipple

ports should then be kept free from dirt and checked

at each stage of assembly. Particles of dirt which are

not removed lead to leakage.

The accompanying nipple jointing oil serves as a

lubricant as well as a waterproof seal and must be

used.

Boiler nipples and nipple ports must align exactly at

all stages of assembly. An inclined, retracted nipple

leads to leakage.

The clearance between the sections throughout the

pulling-up stages should always be even. If the

clearance is uneven, a flat chisel should be inserted

into the narrower point and the sections pulled up

until the clearance is even again.

Diagram showing nipple & boring

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

Page 8

23/03/01

Rear and Intermediate sections Pulling-up Bars

Pulling-upBrass nut &

2 x M20 Pulling-up M20 Steel nut

Locate nipples into nipple ports and take up slack

Pulling-up flange

1st Intermediate

section

Pulling-up

Brass

Rear

Spanner

Flange

Tighten flanges alternately until faces are touching.

Blanking Flange

Tie bar M12

Tie bar M20

Cast lug for tie bar

Once the boiler block is pulled up use the tie bars to secure as shown

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

Page 9

23/03/01

Cold water pressure test:

The assembled boiler is to be subjected to a cold

water pressure test of 1.5 times the operating pressure.

The maximum test pressure of the boiler is 5.2 bar.

In addition, at the time of testing for water pressure,

no pressure control fittings or safety fittings may be

assembled which cannot be separated from the water

area of the boiler.

Only fill, slowly from the bottom via the filling and

draining cock.

Ventilate during the filling procedure from time to

time, until the water emerges.

If a nipple connection is leaking then drain off the

water via the filling and draining cock. Separate by

driving flat wedges around the perimeter of the join

between sections. New nipples MUST be used for re-

assembly.

Assemble and repeat test.

The order of assembly from (1) to (7) must be

observed.

Important points:

•When fitting the long injection tube (1) (only

fitted to boilers with 7 sections or more) care

should be taken to ensure that the holes for the

direction of water, are facing upwards.

•The boiler flow (3) must be assembled with the

connection facing upwards eccentrically.

•The boiler return (2) must be assembled with the

connection facing downwards eccentrically.

•It is possible to hinge the door to swing from

either side of the front section. Car should be

taken to ensure the burner plug is mounted

accordingly.

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

Page 10

23/03/01

The order of assembly from (1) to (13) must be

observed.

Important points:

When assembling the floor insulation (1) as well as

the side jackets (2) care should be taken to ensure they

are in the correct position (with burner cable holes

facing the front).

The water temperature sensors (9) must be pushed

with the pressure spring into the immersion sleeves

(max. 3 per sleeve) and then secured with the

protective guard.

Note: The sensor leads (capillary tubes) should not

be kinked.

The jacket assembly should be in the following order:

1. Insulation under the boiler both left and right.

2. Boiler side jackets left and right.

3. Rear bottom bracing angle.

4. Front bracing bracket.

5. Rear inner insulation.

6. Position burner cable according to door hinging.

7. Position instrument control panel.

8. Mount control panel to mounting bracket.

9. Mount sensors in sensor pockets.

10. Top jacket.

11. Outer rear insulation.

12. Fit insulation retainer.

13. Fit flue over cast spigot on rear section (using

rubber mallet and block of wood).

ASSEMBLY INSTRUCTIONS FOR: Ca 7s / BCa 7s

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