Sime Format DGT HE Owner's manual

Brand: Sime

Model: Format DGT HE

Type: Owner's manual

FORMAT

DGT HE

Installation and

servicing instructions

ENSURE THAT THESE INSTRUCTIONS ARE LEFT

FOR THE USER AFTER COMPLETION OF THE

BENCHMARK SECTION

Please read the Important Notice within

this guide regarding your boiler warranty

199838

All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes

and improvements in our products that may affect the accuracy of the information contained in this manual.

This boiler may require 2 or more operatives to move it into its installation site, remove it from its packaging and during

movement into its installation location. Manoeuvring the boiler may include the use of a sack truck and involve lifting pushing

and pulling.

Caution should be exercised during these operations.

Operatives should be knowledgeable in handling techniques when performing these tasks and the following precautions

should be considered:

– Grip the boiler at the base

– Be physically capable

– Use personal protective equipment as appropriate e.g. gloves, safety footwear.

During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoidable

and/or the weight is light.

– Keep back straight

– Avoid twisting at the waist

– Always grip with the palm of the hand

– Keep load as close to the body as possible

– Always use assistance

WARNING

Caution should be exercised when performing any work on this appliance.

Protective gloves and safety glasses are recommended.

– Avoid direct contact with sharp edges.

– Avoid contact with any hot surfaces.

NOTICE

Please be aware that due to the wet testing of the appliance, there may some residual water in the hydraulic circuit.

– Protect any surfaces, carpets or floorings.

– Use a suitable container to catch any water that escape when removing the protective caps from the connections.

SAFE HANDLING

IMPORTANT NOTICE

For the first year all of our appliances are protected by our manufacturer’s guarantee which covers both parts and

labour.

As you would expect from Sime Ltd, it is our aim to provide our valued customers with the best in after sales and

service.

To take advantage of any extended warranty offered, all you have to do is to adhere to these 3 simple conditions:

• The installation must be carried out to Manufacturers/Benchmark Standards by a Gas Safe Registered

Engineer, and recorded in the installation manual.

• The appliance must be registered with both Sime Ltd and Gas Safe within 30 days of installation.

• The appliance must be serviced annually, by either Sime Ltd or a Gas Safe registered engineer- ensuring that the

Benchmark service record in the installation manual is completed.

Failure to comply with the above will result in only the 12 month warranty being offered.

In the absence of any proof of purchase, the 12 month warranty period will commence from the date of manufacture

of the boiler as shown on the appliance data plate.

The Benchmark Scheme

Sime Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and

commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimi-

se safety, efficiency and performance.

Benchmark is managed and promoted by the Heating and Hotwater Industry Council.

For more information visit www

.centralheating.co.uk

Please refer to commissioning instructions for filling in the checklist at the back of this installation guide.

Note: All Gas Safe registered installers carry a ID Card.

You can check your installer is Gas Safe Registered by calling 0800 408 5577

CONTENTS

1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 10

3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 21

4 USE, MAINTENANCE (including BENCHMARK) AND COMMISSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 25

5 FAULT FINDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 31

6 REPLACEMENT OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 31

7 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 34

SIME COMBINATION BOILERS

Installer checklist

Please remember to carry out the following checks after installation. This will achieve complete customer satis-

faction, and avoid unnecessary service calls. A charge will be made for a service visit where the fault is not due to

a manufacturing defect.

– Has a correct by-pass been fitted and adjusted?

– Has the system and boiler been flushed?

– Is the system and boiler full of water, and the correct pressure showing on the pressure gauge?

– Is the Auto Air Vent open?

– Has the pump been rotated manually?

– Is the gas supply working pressure correct?

– Is the boiler wired correctly? (See installation manual).

– Has the D.H.W. flow rate been set to the customer requirements?

– Has the customer been fully advised on the correct use of the boiler, system and controls?

– Has the Benchmark Checklist in the use and maintenance section of this manual, been completed ?

IPX5D

Important Information

IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS, IN

ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). The manu-

facturer’s instructions must not be taken as overriding any statutory requirements, and failure to comply with these

regulations may lead to prosecution.

No modifications to the appliance should be made unless they are fully approved by the manufacturer.

GAS LEAKS: DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS SUPPLY

AND VENTILATE THE AREA BY OPENING DOORS AND WINDOWS CONTACT THE GAS EMERGENCY SERVICE ON

0800111999.

Format DGT HE 20 System: Gas Council number 41-283-18 Format DGT HE 25: Gas Council number 47-283-24

Format DGT HE 30: Gas Council number 47-283-25

Format DGT HE 35: Gas Council number 47-283-26

These appliances comply with the S.E.D.B.U.K. scheme, band “A”

100

290

169

29,5

70 70

794

200

12 2

450

214

ø 60/100

750

RMG E U

TABLE 2 - Minimum clearances

For servicing

ABOVE THE APPLIANCE CASING 300 mm

AT THE R.H.S. 15 m m

AT THE L.H.S. 15 m m

BELOW THE APPLIANCE CASING 200 mm

IN FRONT OF THE APPLIANCE 500 mm

TABLE 1 - Connections

R C.H. return 22 mm Compression

M C.H. flow 22 mm Compression

G Gas connection 15 mm Compression

E D.H.W. inlet 15 mm Compression

U D.H.W. outlet 15 mm Compression

S3 Condensation outlet ø 20

1.1 INTRODUCTION

FORMAT DGT HE - FORMAT DGT HE

SYSTEM are premixed gas condensation

thermal modules that employ a micropro-

cessor-based technology to control and

manage all the functions. All modules are

compliant with European Directives

2009/142/CE, 2004/108/CE,

2006/95/CE and 92/42/CE.

For optimum installation and operation,

always follow the instructions provided in

this manual.

The products manufactured and sold by

Sime do not contain any banned materials

or substances (ie they comply with

ISO9000:2000).

1 DESCRIPTION OF THE BOILER

7085

214

ø 60/100

169

450

100

290

29.5

750

794

200

12 2

Fig. 1

1.2 DIMENSIONS (fig. 1)

FORMAT DGT HE 20 SYSTEM

FORMAT DGT HE 25-30-35

Models 25 30 35 20 System

Heat output

Nominal (80-60°C) kW 19.5 24.6 29.4 19.5

Nominal (50-30°C) kW 20.7 26.3 31.2 20.7

Reduced G20 (80-60°C) kW 5.7 7.2 8.0 5.7

Reduced G20 (50-30°C) kW 6.3 8.0 8.9 6.3

Reduced G31 (80-60°C) kW 6.6 7.2 8.0 6.6

Reduced G31 (50-30°C) kW 7.3 8.0 8.9 7.3

Heat input nominal C.H./D.H.W. kW 20/24 25/30 30/35 20

Heat input reduced G20/G31 kW 6.0/7.0 7.5 8.2/9.0 6.0/7.0

Max/min useful yield (80-60°C) % 95.2/97.5 96.1/98.2 97.8/98.2 95.2/97.5

Max/min useful yield (50-30°C) % 105.2/103.7 106.2/105.2 108.2/104.3 105.2/103.7

Useful yield at 30% of the load (40-30°C) % 107.5 107.9 108.5 107.5

Termal efficiency (CEE 92/42 directive)    

Losses after shutdown to 50°C (EN 483) W 100 106 106 100

Supply voltage V-Hz 230-50 230-50 230-50 230-50

Adsorbed power consumption W 125 125 130 125

Electrical protection grade IP X5D X5D X5D X5D

C.H. setting range °C 20/80 20/80 20/80 20/80

Water content boiler l 4.3 5.1 5.3 4.4

Maximum water head bar 2,5 2,5 2,5 2,5

Maximum temperature °C 85 85 85 85

Capacity of the heating expansion vessel l6 666

Pressure of the heating expansion vessel bar 1.2 1.2 1.2 1.2

D.H.W. setting range °C 10/60 10/60 10/60 --

D.H.W. flow rate (EN 625) l/min 10.5 13.4 15.2 --

Continuous D.H.W. flow rate ∆t 30°C l/min 11.3 14.1 16.0 --

Minimum D.H.W. flow rate l/min 2.2 2.2 2.2 --

D.H.W. pressure min/max bar 0.5/6.0 0.5/6.0 0.5/6.0 --

Exhaust fumes temper. at max flow rate (80-60°C)

°C 75 68 69 68

Exhaust fumes temper. at min. flow rate (80-60°C)

°C 56 57 50 57

Exhaust fumes temper. at max flow rate (50-30°C)

°C 57 52 52 57

Exhaust fumes temper. at min. flow rate (50-30°C)

°C 39 36 33 43

Smokes flow min/max kg/h 10/35 13/44 14/52 5/20

2 at max/min flow rate G20 % 9.0/9.0 9.0/9.0 9.0/9.0 9.2/9.2

2 at max/min flow rate G31 % 10.0/10.0 10.0/10.0 10.0/10.0 10.0/10.0

CE certification n° 1312BT5266

Category II2H3P

Type B23P-53P/C13-33-43-53-83

NOx emission class 5 (< 30 mg/kWh)

Weight when empty kg 38 41 42 33

Main burner nozzle

Quantity nozzles n° 1 1 1 1

G20/G31 nozzle diameter ø 7.0/5.0 7.5/6.0 8.5/5.2 7.0/5.0

Consumption at maximum/minimum flow rate

G20 m

/h 2.54/0.63 3.17/0.79 3.68/0.87 1.21/0.31

G31 kg/h 1.86/0.54 2.33/0.58 2.70/0.70 0.89/0.31

Gas supply pressure

G20/G31 mbar 20/37 20/37 20/37 20/37

1.3 TECHNICAL FEATURES

1.4 FUNCTIONAL DIAGRAM (fig. 2)

FORMAT DGT HE 25-30-35

FORMAT DGT HE 20 SYSTEM

Fig. 2

KEY

1Fan

3 Primary exchanger

4 C.H. sensor (SM)

5 Gas valve

6 D.H.W. exchanger

7 Heating water filter

8 Diverter valve

9 Safety thermostat

10 Pump with air release vent

11 D.H.W. flow meter

12 Water inlet filter

13 -----

14 2.5 BAR safety valve

15 Water pressure valve

16 Automatic bypass

17 Pressure release valve

18 Expansion vessel

19 Condensate drain trap

20 -----

21 D.H.W. isolation valve

22 Gas isolation valve

23 C.H. flow isolation valve

24 C.H. return isolation valve

CONNECTIONS

R C.H. return

M C.H. flow

G Gas connection

E D.H.W. inlet

U D.H.W. outlet

S3 Condensation outlet

Fig. 3

1.5 MAIN COMPONENTS (fig. 3)

NOTE: Analogue pressure gauge see fig. 22/a.

KEY

1 Control panel

2Fan

3 Mixer

4 Ignition electrode

5 C.H. sensor (SM)

6 Primary exchanger

7 Smoke chamber

8 Fumes sensor

9 Safety thermostat

10 Condensate collection tray

11 Diverter valve

12 Automatic air vent

13 Pump

14 See programming clock

(optional part number 8092242)

15 Manual air vent

It is important that the boiler is initially

filled and started for the first time using

the method shown in 2.3.3 section e).

This procedure should also be used when

refilling after draining a boiler.

The boiler must be installed in a fixed loca-

tion and only by specialized and qualified per-

son in compliance with all instructions con-

tained in this manual. The installation of this

boiler must be in accordance with the rele-

vant requirements of the current Gas

Safety (installation and use), the local build-

ing regulations, and and I.E.E. wiring regula-

tions. Detailled recommendations for air

supply are given in BS5440:2. The following

notes are for general guidance: it is not nec-

essary to have a purpose provided air vent

in the room or compartment in which the

appliance is installed.

2.1 ANTI-FREEZE FUNCTION

The boilers are equipped with anti-freeze

function which activates the pump and the

burner when the temperature of the water

contained inside the appliance drops to

below value PAR 10. The anti-freeze func-

tion can only operate if:

– the boiler is correctly connected to the

gas and electricity supply circuits;

– the boiler is switched on;

– the boiler ignition is not locked out;

– the essential components of the boiler

are all in working order

In these conditions the boiler is protected

against frost down to an environmental

temperature of -5°C.

ATTENTION:

In the case of installation in a place where

the temperature drops below 0°C, the

connection pipes must be protected.

2.2 FIXING THE WALL

MOUNTING BRACKET (fig. 4)

– Mark the position of the two wall mount-

ing bracket fixing holes and the flue/air

duct hole on the appropriate wall(s).

–

Drill a top two fixing holes using a 10 mm

masonry drill and fit the plastic plugs provided.

– Accurately measure the wall thickness,

and note this dimension for later use.

– Secure the wall mounting bracket in

position using the screws provided.

Ensure that it is the correct way up, as

indicated in fig. 4.

2.3 CONNECTING

UP SYSTEM

Before connecting the boiler it is recom-

mended that the system be flushed in

accordance to BS 7593, to eliminate any

foreign bodies that may be detrimental to

the operating efficiency of the appliance.

When connecting up the boiler the clear-

ances in fig 1 should be respected.

The boiler is supplied with a valve pack part

number 5184817A. The boiler can be filled

and pressure tested prior to any electrical

supply being connected with the use of the

analogue pressure gauge. see fig 22/a

A safety valve set at 3 bar is fitted to the

appliance, the discharge pipe provided

should be extended to terminate safely

away from the appliance and where a dis-

charge would not cause damage to per-

sons or property but would be detected.

The pipe should be a minimum of 15 mm Ø

and should be able to withstand boiling

water, any should avoid sharp corners or

upward pipe runs where water may be

retained.

Gas Connection

The gas connection must be made using

seamless steel or copper pipe.

Where the piping has to pass through walls,

a suitable insulating sleeve must be provid-

ed. When sizing gas piping, from the meter

to the boiler, take into account both the vol-

ume flow rates (consumption) in m

/h and

the relative density of the gas in question.

The sections of the piping making up the sys-

tem must be such as to guarantee a supply

of gas sufficient to cover the maximum

demand, limiting pressure loss between the

gas meter and any apparatus being used to

not greater than 1.0 mbar for family II gases

(natural gas).

An adhesive data badge is sited inside the

front panel; it contains all the technical data

identifying the boiler and the type of gas for

which the boiler is arranged.

2.3.1 Connection of condensation

water trap

To ensure safe disposal of the condensate

produced by the flue gases, reference

should be made to BS6798:2009.

The boiler incorporates a condensate trap

which has a seal of 75mm, therefore no

additional trap is required. The advised

method of connection to the condensate

trap is by using 20mm overflow pipe with a

socket attached to cover the condensate

trap connection.

The condensate should ideally be dis-

charged internally into an internal waste

pipe(washing machine/sink waste) or a soil

pipe to avoid the risk of freezing.

External pipe runs should be avoided, but

if it is necessary, the pipework should be

at least 32mm and protected from the

risc of freezing with a waterproof insula-

tion and the length kept to a minimum

and not exceeding 3 m. termination

should be into an external gully or pur-

pose made soakaway.

NOTE: All pipework must have a continu-

ous fall from the boiler and must be resis-

tant to corrosion by condensate, copper

or steel is NOT suitable.

It should be noted that the connection of a

condensate pipe to a drain may be subject

to local building control requirements.

2.3.2 Dealing with

condensate (fig.5)

Five suitable drainage points

Five suitable drainage points:

1. Internal drain stack pipe

2. Waste water pipe*

3. External drain or gully

4. Rainwater hoppers that carry both rain

water and foul water*

5. Purpose-made soakaways

* Care should be taken not to contaminate any

“Grey Water Systems”

Pipework

Condensate pipework should be plastic,

same as used for standard wastewater

plumbing. Similarly the drainage system

where the condensate discharges to should

also be resistant to the acid condensate.

Pipework should be kept as short as possi-

ble. External runs should be avoided, but

when necessary be a minimum of 3 meter

in 32 mm diameter pipework and lagged to

avoid freezing, this also applies to pipe runs

in unheated areas such as garages.

To reduce the possibility of condensate

being trapped in the pipe, the number of

bends should be kept to a minimum.

Pipework must be angled down from the

boiler with a fall of at least 2.5°.

The pipework must be supported at a dis-

tance of 0.5 m for inclined runs and 1.0 m

for vertical runs.

Condensate traps

Where the condensate drain is not sealed

to the discharge connection a trap will be

required. The water seal should be 38 mm

or more for external discharge and 75 mm

or more for internal discharge. When con-

necting to a external stack the trap should

be located within the building.

2 INSTALLATION

KEY

1 Wall mounting bracket

2 Plastic wall plug (2 Off)

3 Woodscrew (2 Off)

4 Washer (2 Off)

Fig. 4

Stack pipes

Condensate connections should be at least

450 mm above any bend at the bottom of a

stack pipe in a single or multi-story dwelling

up to 3 storeys. There are specific require-

ments when connecting to a stack pipe

serving multi-storey buildings greater than

3 storeys.

All connections to stack pipes should avoid

across flow between other Branch pipes.

Soakaways

Any soakaways have to be purpose-made

and located as close to the boiler as possi-

ble, but clear of the buildings foundations

and any buried services. The best option is

to purchase a soakaway from a drainage

manufacturer and install it to the manufac-

turers recommendation.

Condensate disposal positioning and ter-

mination of the condensate drain pipe

The condensate pipe should run and termi-

nate internally to the house soil and vent

stack or waste pipe. Alternatively, the con-

densate can be discharged into the rainwa-

ter system, or into a purpose-made soak

away (condensate absorption point).

An alternative condensate waste pipe

should be considered where the system

could be effected by extreme weather con-

ditions. All connecting drainage pipework

should have a fall of at least 2.5° to the hor-

izontal, or approximately 50 mm per metre

of pipe run.

2.3.3 Requirements for sealed water

systems FORMAT DGT HE

(fig. 5/a)

The heating system design should be based

on the following information:

The available pump head is given in fig. 14.

b) The burner starts when the C.H. flow

reaches 400÷450 l/h. This safety con-

dition is ensured by the flow switch.

The appliance is equipped with an internal

by-pass that operates with system heads

(H) greater than 3 m. The maximum flow

through the by-pass is about 300 l/h. If

thermostatic radiator valves are to be

installed, at least one radiator should be

without a thermostatic valve (usually the

bathroom radiator or the radiator in the

room containing the room thermostat).

d) A sealed system must only be filled by a

competent person using one of the

approved methods shown in fig. 5/a.

The system design should incorporate

the connections appropriate to one of

these methods.

e) It is most important that the boiler is

not allowed to ignite until it and the

heating system is filled.

Ensure that the electrical supply to the

boiler is turned off.

Open the auto air vent, D fig 15.

Fill the system to approximately 1.5 bar.

Use the manual air vent located on the

uppermost connection to the primary

heat exchanger (item 15 fig. 3) to

release any air retained, and ensure

that all the radiators are vented.

Top up the system pressure to 1.5 bar.

Turn on the power supply to the boiler

and put the boiler in the Summer mode.

While in the Summer mode, adjust the

heating flow temperature to its mini-

Pipe slope

deg

Internal trap

>75mm

>110mm

(for 100mm stack)

> 450mm

(for up to 3 floors)

100mm Internal stack

Branch

pipe

SINK

Height above

sink >100mm

Internal trap

>75mm

Pipe slope

deg

Height above

sink >100mm

SINK

> 1m

Section of plastic

drain pipe

Holes in side away

from dwelling

Ground level

Alternative

ground level

Limestone

chipping fill

Internal termination of condensate drainage pipe to internal stack

External termination of condensate

drainage pipe via internal discharge

branch (e.g. sink waste) and condensate

syphon

External termination of condensate

drainage pipe via internal discharge

branch (e.g. sink waste - proprietary

fitting) and condensate syphon

External termination of

condensate drainage

pipe to absorpion point

Fig. 5

ALTERNATIVE METHODS OF

FILLING A SEALED SYSTEM

Fig. 5/a

mum 20 degrees. Put the boiler into

the Winter mode and allow it to ignite.

Run the boiler in this mode for approxi-

mately 30 minutes, regularly checking

that trapped any air is released. and

gradually increasing the flow tempera-

ture to 60 degrees. When inhibitor is

added repeat this procedure with the

initial flow temperature at 20 degrees.

The flow temperature should then be

set to the desired value.

2.3.4 Requirements for sealed water

systems FORMAT DGT HE SYSTEM

The heating system design should be based

on the following information:

The available pump head is given in fig. 14.

The appliance is equipped with an internal

by-pass that operates with system heads

(H) greater than 3 m. The maximum flow

through the by-pass is about 300 l/h. If

thermostatic radiator valves are to be

installed, at least one radiator should be

without a thermostatic valve (usually the

bathroom radiator or the radiator in the

room containing the room thermostat).

2.4 CHARACTERISTICS

OF FEEDWATER

– All recirculatory systems will be subject

to corrosion unless an appropriate

water treatment is applied.

This means that the efficiency of the

system will deteriorate as corrosion

sludge accumulates within the system,

risking damage to pump and valves, boil-

er noise and circulation problems.

–

For optimum performance after instal-

lation this boiler and its associated cen-

tral heating system must be flushed in

accordance with the guidelines given in

BS 7593 “Treatment of water in

domestic hot water central heating

systems”.

Sime Ltd recommend only the use of

FERNOX products for the flushing and

final treatment of the system water.

This is particularly important in hard

water areas.

Artificially softened water must not be

used to fill the heating system.

Failure to flush and addinhibitor to the

system may invalidatethe appliance

warranty. For the correct operation of

the aluminum heat exchanger make

sure that the chemical/physics char-

acteristics of the system water have a

PH value within 6,5 and 8.

– It is important to check the inhibitor

concentration after installation, system

modification and at every service in

accordance with the manufacturer’s

C33

C43

x + y = L (m)

H (m)

C13

L (m)

LIST OF ø 60/100 ACCESSORIES

1 Coaxial duct kit L. 790 code 8 091212

(includes 8086950)

2a Extension L. 1000 code 8096150

2b Extension L. 500 code 8096151

3 Vertical extension L. 140 with coupling code 8086950

5 Tile for joint code 8091300

6 Terminal for roof exit L. 1285 code 8091212

(includes 8086950)

Model Length of pipe Length of pipe

ø 60/100 ø 80/125

HV H V

Min Max Min Max

20 SYSTEM 6 m 1.3 m 8 m 12 m 1.2 m 15 m

25 6 m 1.3 m 8 m 12 m 1.2 m 15 m

30 5 m 1.3 m 7 m 10 m 1.2 m 13 m

35 4 m 1.3 m 6 m 10 m 1.2 m 13 m

LIST OF ø 80/125 ACCESSORIES

1 Coaxial duct kit L. 785 code 8091205A

(includes 8093150)

2a Extension L. 1000 code 8096171

2b Extension L. 500 code 8096170

3 Adapter for ø 80/125 code 8093150

5 Tile for joint code 8091300

6 Terminal for roof exit L. 1285 code 8091205A

(includes 8093150)

H (Horizontal) m

V (Vertical) m

IMPORTANT:

– The insertion of each additional 90° bend with a diameter of 60/100 (code 8095850)

reduces the available section by 1.5 meters.

– The insertion of each additional 90° bend with a diameter of 80/125 (code 8095870)

reduces the available section by 2 meters.

– Each additional 45° curve installed a diameter of 60/100 (code 8095550) reduces the

available length by 1.0 metres.

– Each additional 45° curve installed a diameter of 80/125 (code 8095970) reduces the

available length by 1.0 metres.

HORIZONTAL FLUES MUST BE LEVEL

NOTE: Before connecting accessories, it is always advisable to lubricate the internal part of

the gaskets with silicon products. Avoid using oils and greases.

TABLE 3 - ACCESSORIES ø 80

Accessories ø 80 Total head loss (

mm H

20 25 30 35

Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet

Air/smoke divider – – – – – – – –

90° elbow MF 0.15 0.20 0.20 0.25 0.25 0.30 0.30 0.40

45° elbow MF 0.10 0.10 0.15 0.15 0.20 0.20 0.25 0.25

Extension L. 1000 (horizontal) 0.10 0.10 0.15 0.15 0.20 0.20 0.25 0.25

Extension L. 1000 (vertical) 0.10 0.10 0.15 0.15 0.20 0.20 0,25 0.25

Wall terminal 0.05 0.20 0.10 0.25 0.10 0.35 0.15 0.50

Wall coaxial exhaust

Roof outlet terminal * 0.50 0.05 0.80 0.10 1.10 0.15 1.50 0.20

* This loss includes the loss of the adaptor 8091401

Fig. 6

instructions (Test kits are available from

inhibitor stockists).

– At every service the Aquaguard Filter

(4.5.2) should be checked and cleaned.

2.5 INSTALLATION OF COAXIAL DUCT

ø 60/100 - ø 80/125 (fig. 6)

The coaxial suction and discharge pipes are

supplied in a special kit (that can be purcha-

sed separately) along with assembly

instructions. The diagrams of fig. 6 illustra-

te some examples of different types of

fluing options allowed and the maximum

lengths that can be reached.

2.6 INSTALLATION OF SEPARATE

DUCTS ø 80 (fig. 7 - fig. 7/a)

The kit with dedicated pipes enables to

separate the exhaust fumes pipes from the

air suction pipes (fig. 7):

–for ø 80 pipes, divider code 8093050 is

provided upon request.

The maximum overall length, resulting

from the sum of all the suction and

discharge pipes, is determined by the

load losses of the single connected acces-

sories and should not exceed 13 mm H2O

(version 20 System) - 15 mm H2O (ver-

sion 25-30-35) (ATTENTION: the total

length of each pipe should not exceed 50

m, e

ven if the total loss is below the

maxi

mum applicable loss.)

See Table 3 for information on the load los-

ses of single accessories and the example

of Fig. 7/a for information on how to calcu-

late load losses.

2.6.1 Separate ducts kit (fig. 8)

The diagrams of Figure 8 show a couple of

examples of the permitted exhausts confi-

gurations.

2.7 POSITIONING THE

OUTLET TERMINALS (fig. 9)

The outlet terminals for forced-draught

appliances may be located in the external

perimeter walls of the building.

To provide some indications of possible solu-

tions, Table 4 gives the minimum distances

to be observed, with reference to the type

of building shown in fig. 9.

2.9 ELECTRICAL CONNECTION

The boiler is supplied with an electric cable.

Should this require replacement, it must be

purchased exclusively from SIME.

The electric power supply to the boiler must

be 230V - 50Hz single-phase through a 3 amp

fused main switch, with at least 3 mm spacing

between contacts.

Respect the L and N polarities and the earth

Fig. 7

KEY

1 Divider with vent

2 Air intake

3 Exhaust

CA Inlet

CS Outlet

Example of allowable installation “25” calculation in that the sum of the head losses of

the single fittings is less than 15.0 mm H

Inlet Outlet

m horiz. pipe

ø 80 x 0.15 1.35 –

m horiz. pipe

ø 80 x 0.15 – 1.35

n° 2

90° elbows

ø 80 x 0.20 0.40 –

n° 2

90° elbows

ø 80 x 0.25 – 0.50

n° 1 terminal ø 80 0.10 0.25

Total head loss

1.85 + 2.10 =

3.95 mm H

Fig. 7/a

C33

Fig. 8

C13

NOTE

Before connecting accessories, it is always advisable to

lubricate the internal part of the gaskets with silicon

products. Avoid using oils and greases.

LIST OF ø 80 ACCESSORIES

1 Air/smoke divider code 8093050

3 a Extension L. 1000 code 8077351 (6 pz.)

3 b Extension L. 500 code 8077350 (6 pz.)

7 a Additional 45° MF curve code 8077451(6 pz.)

7 b Additional 90° MF curve code 8077450 (6 pz.)

9 Manifold, code 8091401

10 Tile for joint code 8091300

11 Terminal for roof exit L. 1381 code 8091205B

13 Union suction/exhaust code 8091401

14 Coaxial exhaust ø 80/125 L. 885 code 8096253

– If the terminal discharges into a pathway or passageway check

that combustion products will not cause nuisance and that the

terminal will not obstruct the passageway.

– Where the lowest part of the terminal is fitted less than 2 m

(78 in) above ground, above a balcony or above a flat roof to

which people have access, the terminal MUST be protected by

a purpose designed guard.

– Where the terminal is fitted within 850 mm (34 in) of a plastic

or painted gutter, or 450 mm (18 in) of painted eaves, an alu-

minium shield at least 1,500 mm (59 in) long must be fitted to

the underside of the painted surface.

– The air inlet/outlet flue duct MUST NOT be closer than 25 mm

(1 in) to combustible material.

– In certain weather conditions the terminal may emit a plume of

steam. This is normal but positions where this would cause a

nuisance should be avoided.

Terminal position Minimum spacing

A Directly below an openable window, air vent

or any other ventilation opening 300 mm 12 in

B Below guttering, drain pipes or soil pipes (*) 75 mm 3 in

C/D Below eaves, balconies or carport roof 200 mm 8 in

E From vertical drain pipes or soil pipes 75 mm 3 in

F From internal or external corners 300 mm 12 in

G Above adjacent ground, roof or balcony level 300 mm 12 in

H From a boundary or surface facing the boiler 600 mm 24 in

I From a terminal facing the terminal 1,200 mm 48 in

J From an opening in the carport

(eg door, window into dwelling) 1,200 mm 48 in

K Vertically from a terminal on the same wall 1,500 mm 60 in

L Horizontally from a terminal on the same wall 300 mm 12 in

M Horizontally from a vertical terminal to a wall 300 mm 12 in

N Horizontally from an openable window or other opening 300 mm 12 in

P Above an openable window or other opening 300 mm 12 in

Q From an adjacent vertical terminal 600 mm 24 in

(*) For condensing boilers this distance can be reduced to 25 mm without effecting boiler per-

formance, but it will be necessary to protect the surfaces from the effects of condensate

TABLE 4

Fig. 9

2.8 INSTRUCTIONS FOR

ASSEMBLY OPTIONAL

CLOCK PART NUMBER

8092242

(fig. 23/a - 23/b - 23/c)

1) Isolate the power supply to the

boiler.

2) Remove the boiler cover.

3) Remove the time clock box cover

unscrewing the 4 screws (fig.

23/a).

IMPORTANT! RETAIN THE 4

SCREWS AS THESE ARE USED TO

FIX TIME CLOCK!

4) Inside the time clock box are 4

wires:

- 2 reds

- 1 brown

- 1 blue;

Remove the faston protections

and connect as shown on fig.

23/b.

5) Fix the Time clock with the 4

screws removed before (as

shown on fig. 23/c).

Fig. 23/a

connection.

NOTE: SIME declines all responsibility for injury

or damage to persons, animals or property,

resulting from the failure to provide for proper

earthing of the appliance, or incorrect connec-

tion of external controls. Any fault or compo-

nent failure due to incorrect connection of

external controls is not covered in the warranty.

2.9.1 External controls (fig. 10)

Including connection of the RF clock kit Sime

part number 7102604 (BCG part 38493).

The heating demand on Format DGT boilers

can be controlled externally by either a volta-

ge free or 240 volt demand. In either case

the boiler MUST have a permanent power

supply.

Voltage free option

A voltage free control, room thermostat or pro-

grammable room thermostat, can be connec-

ted after removal of the wire link, to the TA con-

nections on the voltage free input connector.

If required a combination of voltage free room

thermostat and a separate voltage free time

clock can be connected. The room thermostat

to the TA connection, and the time clock to the

OP connection, after removing the links.

Fig. 10

Board programming

clock (code 6301460)

RED

BROWN

BLUE

Fig. 23/b Fig. 23/c

240 volt option

The heating demand can be controlled by a 240

volt switched demand-such as a room thermo-

stat, time clock or the demand from a Y or S

plan.

Connect the switched demand to terminal 1 on

the 240 volt expansion board, and remove the

link in the TA connection on the voltage free

inputs (if the TA link is not removed the boiler will

work in the heating mode without a demand).

2.9.2 Connection of RF Clock

kit Sime part number 7102604

(BCG part 138493) (fig. 10/a)

Ensure that the boiler is isolated from the power

supply. To enable ease of fitting a 1 meter cable

is supplied within the boiler.

Mount the receiver close to the boiler at least

1.5 metres above the floor. Avoid any location

that would cause receptions problems. Connect

the boiler to the receiver as shown. Remove the

wire link in the TA connection at the boiler and

do not forget to link the “L” and “1” terminals at

the RF Receiver (fig. 10/a).

2.9.3 Climatic control option

The boiler is designed for connection to an

external temperature sensor, supplied on reque-

st (code 8094101) in conjunction with remote

control (code 8092226), which can automati-

cally regulate the temperature value of the boi-

ler output according to the external temperatu-

re.

For installation, follow the instruction in the

package. Expansion control kit 8092240 will

also be required.

2.9.4 Use with different

electronic systems

Some examples are given below of boiler

systems combined with different electronic

systems.

Where necessary, the parameters to be set in

the boiler are given.

The electrical connections to the boiler refer to

the wording on the diagrams (fig. 11 - fig. 11/a).

Zone valve control is activated with every hea-

ting request from remote control.

Description of the letters indicating the compo-

nents shown on the system diagrams 1 to 6:

M C.H. flow

R C.H. return

CR Remote control CR 63

SE External temperature

sensor

TA 1-2 Zone room thermostat

VZ 1-2 Zone valve

RL 1-2 Zone relay

Sl Hydraulic separator

P 1-2 Zone pump

IP Floor system

EXP Expansion card

(code 8092240)

VM Three-way mixer valve

TSB Safety thermostat

low temperature

3.3 EXTERNAL SENSOR (fig. 13)

1 BASIC SYSTEM

SYSTEM WITH A DIRECT ZONE AND ROOM THERMOSTAT, OR WITH A REMOTE CONTROL (Code 8092219), KIT

EXPANSION REMOTE CONTROL (Code 8092240) AND EXTERNAL SENSOR (Code 8094101)

EXP

Fig. 10/a

TA1

TA2

RL1

RL2

3 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTATS AND EXTERNAL SENSOR (Code 8094101)

VZ1

TA2

VZ2

TA1

EXP

4 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTATS, REMOTE CONTROL (Code 8092219), KIT EXPANSION

REMOTE CONTROL (Code 8092240) AND EXTERNAL SENSOR (Code 8094101)

PARAMETERS SETTINGS

Set the opening time of the VZ zone valve:

PAR 17 = SYSTEM PUMP ACTIVATION DELAY

2 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTAT AND EXTERNAL SENSOR (Code 8094101)

TA1

VZ1

TA2

VZ2

TA1

TA2

RL1

RL2

EXP

5 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH PUMPS, ROOM THERMOSTATS, REMOTE CONTROL (Code 8092219), KIT EXPANSION

REMOTE CONTROL (Code 8092240) AND EXTERNAL SENSOR

(Code 8094101)

NOTE:

The heating is set from the remote control for the first zone and

from the boiler panel for the other zones.

If there is a request for heat at the same time, the boiler is acti-

vated at the highest temperature setting.

TA2

RL2

EXP

TSB

6 MIXER VALVE SYSTEM

SYSTEM WITH ONE DIRECTED ZONE, AND ONE MIXER ZONE

2.10 BOILER ELECTRICAL “FORMAT DGT HE 20 SYSTEM” (fig. 11)

SM (3,3 VDC)

SE (3,3 VDC)

TA (24 VDC)

SL (24 VDC)

TS (3,3 VDC)

SF (3,3 VDC)

EXP

(24 VDC)

code 6301422C

code

6301460

Fig. 11

KEY

F Fuse (1.6 AT)

TRA Ignition transformer

PI Pump

VFan

EA Ignition/ionisation electrode

EV1-2 Gas valve coil

SL Condensate level sensor

SM Heating sensor

TS Safety thermostat

SF Fumes sensor

PA Water pressure switch

TA Environment thermostat

SE External sensor (optional)

EXP Expansion card remote control (optional)

OP Programming clock (optional part number 8092242)

BP Board programming clock

NOTE (See section 2.8.1):

- If “TA” is used in low voltage (24 VDC) connect to clamps 5-6

of the terminal board in the panel, after having removed the

jumper.

- If “TA” (230 V) is used connect to clamp 1 of the board.

- If a “OP” is used connect the contact to clamps 7-8 after

having removed the jumper.

- Any power supply of a “OP” at 230 V can be withdrawn from

clamps 4-5 of the board programming clock “BP”.

CONNECTOR SPARE PART CODES:

CN3 code 6316268

CN4 code 6316275

CN5 code 6316253

CN6 code 6316266

CN7 code 6319115

2.11 BOILER ELECTRICAL “FORMAT DGT HE 25-30-35” (fig. 11/a)

SM (3,3 VDC)

SL (24 VDC)

TS (3,3 VDC)

SF (3,3 VDC)

FLM (12 VDC)

(24 VDC)

S.AUX

(3,3 VDC)

SE (3,3 VDC)

TA (24 VDC)

EXP

(24 VDC)

code 6301422C

code

6301460

Fig. 11/a

KEY

F Fuse (1.6 AT)

TRA Ignition transformer

PI Pump

VFan

EA Ignition/ionisation electrode

EV1-2 Gas valve coil

VD Divertor valve

SL Condensate level sensor

SM Heating sensor

TS Safety thermostat

FLM D.H.W. flow meter

SF Fumes sensor

PA Water pressure switch

TA Environment thermostat

SE External sensor (optional)

S.AUX Auxiliary sensor

EXP Expansion card remote control (optional)

OP Programming clock (optional part number 8092242)

BP Board programming clock

NOTE (See section 2.8.1):

- If “TA” is used in low voltage (24 VDC) connect to clamps 5-6 of the

terminal board in the panel, after having removed the jumper.

- If “TA” (230 V) is used connect to clamp 1 of the board.

- If a “OP” is used connect the contact to clamps 7-8 after having

removed the jumper.

- Any power supply of a “OP” at 230 V can be withdrawn from clam-

ps 4-5 of the board programmming clock “BP”.

CONNECTOR SPARE PART CODES:

CN3 code 6316268

CN4 code 6316267

CN5 code 6316253

CN6 code 6316266

CN7 code 6319114

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Sime Format DGT HE Owner's manual

Sime Format DGT HE Owner's manual

Sime Format DGT HE Owner's manual

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