Mamiya C32, C28, C24 User Manual

installation and servicing

mini HE

Your Ideal installation and servicing guide

For details of document amendments, refer to page 3

Model

Serial No.

C24,C28,C32

For users guide see reverse of book

When replacing any part of this appliance, use only spare parts that you can be assured conform to safety and performance specification that we requir e. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers

17962.1155.1 1307 68A4 GB

*1796211551*

For the v ery latest copy of literature for specificatio n pu rposes plea se visit o u r w ebsite www .idealbo iler s.com wher e yo u will be able to download the relevant informatio n in pdf format.

mini HE --- Installation & Servicing

DOCUMENT AMENDMENTS

Relevant Installation changes implemented in this book from book reference.................17962.1155.1 4206

F Page 10 -- Sentinel company name & address amended

Caradon Ideal Limited reserve the right to vary specification without notice

mini HE --- Installation & Servicing

GENERAL

Ta b l e 1 --- B o i l e r D a t a

mini HE C24 mini HE C28 mini HE C32

Gas supply type & connection II

Inlet / Outlet connection --- Domestic Hot Water 15 mm copper

Flow & return connection --- Central Heating 22 mm copper

Flue terminal diameter mm (in.) 100 (4)

AverageFlueTemp. ---MassFlowRate Deg C | g/s 90 18.8 90 21.1 90 21.5

Max working pressure (sealed system) bar (lb/in2) 3.0 (43.5)

Max DHW water inlet pressure bar (lb/in2) 10.0 (145.0)

Min DHW water inlet pressure bar (lb/in2) 0.3 (4.4)

Electrical supply 230 Vac 50 Hz

Max power consumption W 140 150 150

External fuse rating 3A

Internal fuse rating F1-- -F2 3.15 AF

Water content --- CH litre (gal.) 2.1 (0.46) 2.2 (0.48) 2.2 (0.48)

Water content --- DHW litre (gal.) 0.2 (0.044)

Dry weight kg (lb.) 42.5 (93.7) 44.5 (98.1) 44.5 (98.1)

Size: Height / Width / Depth mm (in.) 803 (31 5/8”) / 400 (15 3/4”) / 345 (13 9/16”)

Lift weight kg (lb.) 37.5 (82.7) 39.5 (87.1) 39.5 (87.1)

Ta b l e 2 --- P e r f o r m a n c e D a t a --- C e n t r a l H e a t i n g

mini HE C24 mini HE C28 mini HE C32

Max Min Max Min Max Min

Burner pressure (Hot) G20

Input based on nett CV kW (btu/h) 25.0 (85 295) 11.0 (37 530) 29.0 (98 942) 13.0 (44 353) 33.3 (113 620) 15.7 (53 568)

Input based on gross CV kW (btu/h) 27.7 (94 516) 12.2 (41 628) 32.2 (109 871) 14.4 (49 135) 37.0 (126 244) 17.4 (59 368)

Output Non Condensing G20

Output Condensing G20

Gas consumption (Hot) G20

Seasonal efficiency* G20

NOx classification Class 2

mbar

G31

(in.w.g.)

kW (btu/h) 24.6 (83 973)

G31

kW (btu/h) 26.6 (90 754)

G31

l/s (ft3/h)

G31

l/s

(SEDBUK)

G31

10.8 (4.3)

35.5 (14.2)

23.7 (80 894)

26.6 (90 754)

0.72 (91.5)

0.30

Band B 87.7 Band B 87.0

1.5 (0.6)

7.7 (3.1)

10.2 (34 936)

11.1 (37 871)

10.8 (36 997)

0.31 (39.5)

0.13

*The value is used in the UK Government’s Standard Assessment Procedure (SAP) for energy rating of dwellings. The test data from which it has been calculated have been certified by a notified body.

Ta b l e 3 --- P e r f o r m a n c e D a t a --- D o m e s t i c Ho t W a t e r

mini HE C24 mini HE C28 mini HE C32

Burner pressure (Hot) G20

Input based on nett CV kW (btu/h) 25.0 (85 295) 29.0 (98 942) 33.3 (113 620)

Input based on gross CV kW (btu/h) 27.7 (94 516) 32.2 (109 871) 37.0 (126 244)

Output Non Condensing G20

Output Condensing G20

Gas consumption (Hot) G20

Flow 35 ûCtemp.rise l/m (gpm) 10.0 (2.2) 11.7 (2.6) 13.1 (2.9)

Domestic hot water specific rate l/m (gpm) 11.9 (2.6) 13.9 (3.1) 14.6 (3.3)

Note: the gas consumption is calculated using a calorific value of 38.7 MJ/m

Btu/ft

) nett.

G31

(1038 Btu/ft3) gross or 34.9 MJ/m3(935

To obtain the gas consumption at different calorific value: -- -

a. FOR L/S --- divide the gross heat input (kW) by the gross C.V. of the gas (MJ/m

b. FOR FT

/H --- divide the gross heat input (Btu/h) by the

)

gross C.V. of the gas (Btu/ft

mbar (in.w.g.)

kW (btu/h) 24.6 (83 973)

kW (btu/h) 26.6 (90 754)

l/s (ft3/h) l/s

)

10.8 (4.3)

35.5 (14.2)

23.7 (80 894)

26.6 (90 754)

0.72 (91.5)

0.30

Key to Symbols:

IE = Ireland, GB = United Kingdom (Countries of destination) PMS = Maximum operating pressure of water C

12C32C52

connection via concentric ducts to a horizontal or vertical terminal or twin flue system.

2H3P

H or 3rd family gas group 3P

G20 20mbar, G31 37mbar, 22 mm copper

2H3P

10.0 (4.0)

36.0 (14.4)

28.3 (96 488)

27.4 (93 599)

30.7 (104 602)

0.83 (105.5)

0.34

Band B 87.6 Band B 87.1

28.3 (96 488)

27.4 (93 599)

30.7 (104 602)

1.6 (0.6)

7.7 (3.1)

12.1 (41 284)

13.2 (44 965)

12.9 (44 016)

0.37 (47.0)

Maximum

10.0 (4.0)

36.0 (14.4)

0.83 (105.5)

0.34

0.14

13.0 (5.2)

36.0 (14.4)

32.2 (109 866)

34.4 (117 374)

0.95 (121.0)

0.39

Band B 86.8 Band B 88.8

13.0 (5.2)

36.0 (14.4)

32.2 (109 866)

34.4 (117 374)

0.95 (121.0)

2.7 (1.1)

7.3 (2.9)

15.0 (51 180)

15.6 (53 227)

0.45 (57.2)

0.18

0.39

= a room sealed appliance designed for

= appliance designed for use on 2nd family gas group

CAUTION. To avoid the possibility of injury during the installation, serv i cing or cleani ng

of this appliance care should be taken handling edges of sheet steel components.

mini HE --- Installation & Servicing

GENERAL

mini HE

Boiler size G.C. appliance No. PI No.

(Benchmark No.)

mini HE C24 47---348 ---38 87BQ81 mini HE C28 47---348 ---39 87BQ81 mini HE C32 47---348 ---41 87BQ81

Destination countries: GB, IE

CONTENTS

Air supply 9

Benchmark Commissioning Checklist 62

Boiler clearances 6

Boiler exploded view 14

Electrical connections 25

Electrical supply 10

Fault finding 51

Flow wiring diagram 27

Flue fitting 16

Gas conversion 33

Gas safety regulations 7

Gas supply 8

Installation 15

Mandatory requirements 7

Replacement of components 38

Safe handling 7

Servicing 34

Short list of parts 59

Thermostatic radiator valves 12

Water connections 23

Water treatment 9

Wiring diagrams 26

For GB, to comply with Building Regulations Part L1 (Part J in Scotland) the boiler should be fitted in accordance with the manufacturer’s instructions. Self -- -certification that the boiler has been installed to comply with Building Regulations can be demonstrated by completing and signing the Benchmark Commissioning Checklist.

BENCHMARK COMMISSIONING CHECKLIST DETAILS

Boiler Page

Make and model 5 Appliance serial no. on data badge 14 SEDBUK No. % 4

Controls

Time and temperature control to heating 28/29 Time and temperature control to hot water 28/29 Heating zone valves N/A TRV’s 12 Auto bypass 12 Boiler interlock 12

For all boilers

Flushing to BS.7593 9 Inhibitor 9

Central heating mode

Heat input to be calculated

Boiler Page

Burner operating pressure measure and record Central heating flow temp. measure and record Central heating return temp. measure and record

For combination boilers only

Scale reducer 12 Hot water mode Heat input to be calculated Max. operating burner pressure measure and record Max. operating water pressure measure and record Cold water inlet temp measure and record Hot water outlet temp. measure and record Water flow rate at max. setting measure and record

For condensing boilers only

Condensate drain 24 For all boilers: complete, sign & hand over to customer For assistance see Technical Helpline on the back page

NOTE TO THE INSTALLER: COMPLETE

THE BENCHMARK COMMISSIONING

CHECKLIST AND LEAVE THESE

INSTRUCTIONS WITH APPLIANCE

mini HE --- Installation & Servicing

GENERAL

1 BOILER WATER CONNECTION

400

257

803

700

Wall

mounting

Plate

Condensate

drain

connection

area

Pipe size O.D. mm

CH flow 22

CH return 22

Gas inlet 22

DHW cold inlet 15

DHW hot outlet 15

83 (3 1/4”)

52 (2”)

65 (2 9/16”)

CH flow

DHW hot outlet

65 (2 9/16”)

64 (2 1/2”)

Gas inlet

CH return

DHW cold inlet

2 BOILER CLEARANCES

All dimensions in mm (in.)

The following minimum clearances must be maintained for operation and servicing. Additional space will be required for installation, depending upon site conditions.

200 (7 7/8”)

25 (1”) 50 (2”)

Side and Rear Flue

a. Providedthattheflueholeiscutaccurately,e.g.withacore

drill, the flue can be installed from inside the building where wall thickness does not exceed 600 mm (24”).

Where the space into which the boiler is going to be installed is less than the length of flue required the flue must be fitted from the outside.

installation from inside ONLY

b. If a core boring tool is to be used inside the building the

spaceinwhichtheboileristobeinstalledmustbeatleast wide enough to accommodate the tool.

273 (10 3/4”) 127 (5”)

190 (7 1/2”)

200 (7 7/8”)

Bottom clearance

The bottom clearance, after installation, can be reduced to 20mm. However, 200mm must be available for servicing.

Front clearance

The minimum front clearance when built into a cupboard is 50mm (2”) from the cupboard door. However 450mm (17 3/4”) overall clearance is still required, with the cupboard door open, to allow for servicing.

95 (3 3/4”)

mini HE --- Installation & Servicing

GENERAL

INTRODUCTION

mini HE C24, mini HE C28 and mini HE C32 are wall

mounted, low water content, balanced flue, condensing combination gas boilers.

Central heating (CH) output and domestic hot water (DHW) output are both fully modulating:

-- - between 10.2 (34 936) and 24.6* (83 973) kW (btu/h) for

model mini HE C24;

-- - between 12.1 (41 284) and 28.3* (96 488) kW (btu/h) for

model mini HE C28.

--- between 15.0 (51 180) and 32.2* (109 866) kW (btu/h) for

model mini HE C32.

* outputs for G31 (propane) are slightly different. See section Boiler Data at page 4 for detailed figures.

Due to the high efficiency of the boiler a plume of water vapour will form at the terminal during operation.

Theboilersaresuitableforconnectiontofullypumped, pressurised sealed water systems ONLY.

AsystembypassisnotrequiredwhenTRV’sarefittedtoall radiators (see Frame 5). The boiler incorporates an automatic bypass.

A circulating pump, pressure gauge, safety valve and heating expansion vessel are provided.

The CH flow temperature is controlled by a temperature probe. In DHW mode the boiler modulates to sustain a nominal adjustable water flow temperature of 55 ûC.

The boiler casing is of white painted mild steel with a drop --- down controls access door.

The boiler temperature control is located behind the control panel door.

The main heat exchanger is made of copper.

The condensing heat exchanger (recuperator) and the DHW heat exchanger are stainless steel.

The system pipework must include drain cocks in appropriate places. Pipework may be taken downwards.

For upwards pipework installation an additional frame (optional) must be used (see frame 25).

OPTIONAL EXTRA KITS

Programmer Kit fits neatly within the casing. Separate fitting instructions are included with the kit. Note. If using an alternative programmer read Frame 33 first.

Horizontal Concentric Extension Ducts

Up to 2,7 m (8’ 10”) for mini HE C24, mini HE C28 models.

Upto1,8m(5’11”)formini HE C32 model.

Other available kits are listed in frame 9.

SAFE HANDLING

This boiler may require 2 or more operatives to move it to its installation site, remove it from its packaging base 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:

F Grip the boiler at the base. F Be physically capable. F Use PPE as appropriate, e.g. gloves, safety footwear.

mini HE --- Installation & Servicing

During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoidable and/or the weight is light.

F Keep back straight. F Avoid twisting at the waist. F Avoid upper body/top heavy bending. F Always grip with the palm of the hand. F Use designated hand holds. F Keep load as dose to the body as possible. F Always use assistance if required.

DHW OPERATION

With no call for CH the boiler fires only when DHW is drawn off. When there is a call for CH, the heating system is supplied at the selected temperature until DHW is drawn off. The output is then directed by the diverter valve to heat the secondary heat exchanger and supply a maximum draw ---off of:

mini HE C24 10.0 (2.2) l/min (gpm) at 35 degree rise.

mini HE C28 11.7 (2.6) l/min (gpm) at 35 degree rise.

mini HE C32 13.1 (2.9) l/min (gpm) at 35 degree rise.

The nominal DHW temperature is 55 ûC, but water drawn off when the boiler has been on for central heating may be hotter than this, for a short period of time.

GAS SAFETY

Current Gas Safety (Installation and Use) Regulations or rules in force

The appliance is suitable only for installation in GB and IE and should be installed in accordance with the rules in force. In GB, the installation must be carried out by a CORGI Registered Installer. It must be carried out in accordance with the relevant requirements of the:

F Gas Safety (Installation and Use) Regulations F The appropriate Building Regulations either The Building

Regulations, The Building Regulations (Scotland), Building Regulations (Northern Ireland).

F The Water Fittings Regulations or Water byelaws in

Scotland.

F The Current I.E.E. Wiring Regulations.

Where no specific instructions are given, reference should be made to the relevant British Standard Code of Practice.

In IE , the installation must be carried out by a Competent Person and installed in accordance with the current edition of I.S.813 ”Domestic Gas Installations”, the current Building Regulations and reference should be made to the current ETCI rules for electrical installation.

Detailed recommendations are contained in the following British Standard Codes of Practice:

BS 5440:1 Flues (for gas appliances of rated input not

exceeding 70 kW).

BS 5440:2 Ventilation (for gas appliances of rated input

not exceeding 70 kW).

BS. 5449 Forced circulation hot water systems.

BS. 5546 Installation of gas hot water supplies for

domestic purposes (2nd Family Gases)

BS 6700 Design, installation testing and maintenance of

services supplying hot water for domestic use.

BS. 6798 Installation of gas fired hot water boilers of

rated input not exceeding 70 kW.

BS. 6891 Low pressure installation pipes.

Health & Safety Document No. 635.

GENERAL

The Electricity at Work Regulations, 1989.

The manufacturers notes must NOT be taken, in any way, as overriding statutory obligations.

IMPORTANT These appliances are CE certificated for safety and performance. It is, therefore,importantthatnoexternal controldevices,e.g.fluedampers,economisersetc.,are directly connected to these appliances unless covered by these Installation and Servicing Instructions or as otherwise recommended by Caradon Ideal Ltd. in writing. If in doubt please enquire.

Any direct connection of a control device not approved by Caradon Ideal Ltd. could invalidate the certification and the normal appliance warranty. It could also infringe the Gas Safety Regulations and the above regulations.

SAFE HANDLING OF SUBSTANCES

Care should be taken when handling the boiler insulation panels, which can cause irritation to the skin. No asbestos, mercury or CFCs are included in any part of the boiler in its manufacture.

LOCATION OF BOILER AND FLUE OUTLET

The boiler must be installed on a flat and vertical wall, capable of adequately supporting the weight of the boiler and any ancillary equipment.

The boiler may be fitted on a combustible wall and insulation between the wall and the boiler is not necessary, unless required by the local authority.

The boiler must not be fitted outside.

Timber Framed Buildings

If the boiler is to be fitted in a timber framed building it should be fitted in accordance with the Institute of Gas Engineers document IGE/UP/7, 1998.

Bathroom Installations

The boiler may be installed in any room or internal space, although particular attention is drawn to the requirements of the current I.E.E. (BS.7671) Wiring Regulations and, in Scotland, the electrical provisions of the building regulations applicable in Scotland with respect to the installation of the boiler in a room or internal space containing a bath or shower.

For Ireland reference should be made to the current ETCI rules for electrical installations and I.S.813:2002

Where a room sealed appliance is installed in a room containing a bath or shower then the appliance and any electrical switch or appliance control utilising mains electricity should be so situated that it cannot be touched by a person using the bath or shower.

Note. It is not permissible to install a mains socket in a bathroom.

Where installation will be in an unusual location, special procedures may be necessary and BS 6798 gives detailed guidance on this aspect.

Compartment Installations

A compartment used to enclose the boiler should be designed and constructed specially for this purpose. An existing cupboard or compartment may be used, provided that it is modified for the purpose.

In both cases details of essential features of cupboard / compartment design, including air cupboard installation, are to conform to the following:

F BS 6798 (No cupboard ventilation is required - -- see “Air

supply” for details)

F The position selected for installation MUST allow

adequate space for servicing in front of the boiler .

F For the minimum clearances required for safety and

subsequent service, see the wall mounting template and frame 2. In addition, sufficient space may be required to allow lifting access to the wall mounting plate.

GAS SUPPLY

The local gas supplier should be consulted, at the installation stage, in order to establish the availability of an adequate supply of gas. An existing service pipe must NOT be used without prior consultation with the local gas supplier. Natural gas boilers must be installed on a gas supply with a governed meter. A gas meter can only be connected by the local gas supplier or by a registered CORGI engineer.

Propane gas boilers MUST be installed with pipes, cylinders and pressure regulators fitted in accordance with BS.5482.1. Bulk tank installations MUST comply with the Home Office code of practice for storage of liquefied petroleum gas at fixed installations. The complete installation MUST be tested for gas tightness and purged as described in the above code.

The boiler is adjusted at the factory for use with the relevant supply gas. A working gas pressure equal to that stated in Table 1 MUST be available at the boiler inlet.

Where applicable, the appliance can be converted for G 2 0 --- N a t u r a l G a s o r G3 1 --- P r o p a n e Ga s b y u s in g t h e appropriate conversion kit.

IMPORTANT Installation pipes MUST be fitted in accordance with BS. 6891. In IE refer to I.S. 813.2002. Pipework from the meter to the boiler MUST be of an adequatesize,i.e.notlessthan22mmO.D.copperor3/4” BSP iron.

FLUE INSTALLATION REQUIREMENTS

Thefluemustbeinstalledinaccordancewiththe recommendations of BS. 5440--- 1 2000. In IE refer to I.S. 813.2002.

The following notes are intended for general guidance.

1 The boiler MUST be installed so that the terminal is

exposed to external air.

2 It is important that the position of the terminal allows the

free passage of air across it at all times.

3 Minimum acceptable spacing from the terminal to

obstructions and ventilation openings are specified in Tab l e 4.

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

(6’6”) above a balcony, above ground or above a flat roof to which people have access then the terminal MUST be protected by a purpose designed guard. Ensure that the guard is fitted centrally.

5 Where the terminal is fitted within 850mm (34”) of a plastic

or painted gutter or 450mm (18”) of painted eaves then an aluminium shield at least 750mm (30”) long should be fitted to the underside of the gutter or painted surface fitted centrally above the flue.

6 The air inlet/products outlet duct and the terminal of the

boiler MUST NOT be closer than 25mm (1”) to combustible material. Detailed recommendations on the protection of combustible material are given in BS. 5440---1:2000. In IE refer to I.S. 813.2002.

Table 4 --- Balanced flue terminal position

Terminal position

1 Directly below, above or along side

of an openable window, air vent or other ventilation opening

2 Below guttering, drain pipes or soil

pipes

3 Below eaves 25 mm ( 1”) ***

4 Below balconies or a car port roof 25 mm ( 1”) ***

Minimum spacing

300 mm (12”)

25 mm ( 1”) ***

mini HE --- Installation & Servicing

GENERAL

5 From vertical drain pipes or soil

pipes*

6 Fr om an internal or external corner

or to a boundary along side the terminal

7 Above adjacent ground, roof or

balcony level

8 From a surface or a boundary

facing the terminal.

9 From a terminal facing a terminal 1200 mm (48”)

10 From an opening in a car port (e.g.

door or window) into dwelling

11 Vertically from a terminal on the

same wall

12 Horizontally from a terminal on the

wall

* If the terminal is within 150mm of any vertical soil or drain pipe, an aluminium shield at least 400mm (15 3/4”) long should be fitted equi--- distant from the terminal and close to the pipe.

*** Only 1 spacing down to 25mm is allowable per installation.

Vertical Terminals

13 Above the roof pitch with roof

slope of all angles.

Above flat roof

14 From single wall face

From corner wall faces

Twin Flue Applications

15 Centre distance between air inlet

and flue outlet ducts

** Where the twin flue ducts are positioned at or near the above minimum centres the wall sealing gaskets should be trimmed to allow them to fit flat to the wall. This should be done for both inside and outside wall gaskets

Terminals guards are available from boiler suppliers --- ask for Tower Flue Guard, Model K6. In case of difficulty seek advice from:

Grasslin UK Ltd.,To wer house, Vale Rise, Tonbridge, Kent TN9 1TB T el. +44 (0) 1732 359 888 Fax No. +44 (0) 1732 354 455 www.tfc---group.co.uk

IMPORTANT It is absolutely ESSENTIAL to ensure, in practice, that products of combustion discharging from the terminal cannot re --- enter the building or any other adjacent building through ventilators, windows, doors other sources of natural air infiltration, or forced ventilation / air conditioning.

If this should occur the appliance MUST be turned OFF, labelled as “unsafe” until corrective action taken.

25 mm ( 1”) ***

300 mm (12”)

600 mm (24”)

1200 mm (48”)

1500 mm (60”)

300 mm (12”)

600 mm (24”)

1000 mm (40”)

120mm (5”) **

AIR SUPPLY

It is NOT necessary to have a purpose---provided air vent in the room or internal space in which the boiler is installed. Neither is it necessary to ventilate a cupboard or compartment in which the boiler is installed, due to the low surface temperatures of the boiler casing during operation; therefore the requirements of BS6798, Clause 12, BS 5440:2 and in IE I.S. 813:2002 may be disregarded.

mini HE --- Installation & Servicing

WATER CIRCULATION SYSTEM

The boilers are designed for connection to pressurised, fully pumped, sealed water central heating systems ONLY. The domestic hot water (DHW) calorifier is incorporated within the combi boiler and only requires connection to the mains water supply.

Additional Pumps.

The boiler is supplied with an integral circulating pump. If the boiler is to be used in conjunction with any additional circulating pumps, please contact the Technic al Helpline for advice on application.

IMPORTANT

A minimum length of 1m of copper pipe MUST be fitted to both flow and return connections from the boiler before connection to any plastic piping.

Ensure that the mains water supply pressure is adequate to provide the required DHW flow rate. Refer to Table 1 on page 4.

The central heating system should be in accordance with BS. 6798 and, in addition, for smallbore and microbore systems BS. 5449.

The domestic hot water system should be in accordance with BS. 5546 and BS. 6700.

Copper tubing to BS 2871:1 is recommended for water carrying pipework and MUST be used for pipework carrying potable water.

Any soldered joints on potable water pipework MUST NOT be made with solder containing lead.

Ancillary pipework not forming part of the useful heating surface should be lagged to prevent heat loss and any possible freezing - -- particularly where pipes run through roof spaces or ventilated underfloor spaces.

Draining taps should be at least 1/2” BSP nominal size and be in accordance with BS 2879.

WATER TREATMENT

Central Heating

Antifreeze fluid, corrosion and scale inhibitor fluids suitable for use with boilers having copper heat exchangers may be used in the central heating system.

IMPORTANT

The application of any other treatment to this product may render the guarantee of Caradon Ideal Limited INVALID.

Caradon I deal Limited recommend Water Treatment in accordance with the Benchmark Guidance Notes on Water T r eatment in Central Heating Systems.

Caradon Ideal Limited recommend the use of Fernox, GE Betz Sentinel or Salamander water treatment products, which must be used in accordance with the manufacturers instructions.

Notes.

1. It is most important that the correct concentration of the water treatment products is maintained in accordance with the manufacturers’ instructions.

2. If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing. BS 7593:2006 details the steps necessary to clean a domestic heating system.

3. In hard water areas, treatment to prevent lime scale may be necessary --- however, the use of artificially softened water is NOT permitted.

4. Under no circumstances should the boiler be fired before the system has been thoroughly flushed.

GENERAL

Domestic Hot Water

In hard water areas where mains water can exceed 200ppm Total Hardness (as defined by BS 7593:2006 Table 2) a scale reducing device should be fitted into the boiler cold supply within the requirements of the local water company. The use of artificially softened water, however, is NOT permitted.

Caradon Ideal Limited recommend the use of Fernox Qantomat, Sentinel Combiguard and Calmag CalPhos I scale reducing devices, which must be used in accordance with the manufacturers’ instructions.

For further information contact:

3 ELECTRICAL SUPPLY

Warning. This appliance must be efficiently earthed.

Wiring external to the appliance MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations and any local regulations which apply. For Ireland reference should be made to the current ETCI rules for electrical installations.

Fernox Cookson Electronics Forsyth Road Sheerwater Woking Surrey GU21 5RZ +44 (0) 1799 550811

Salamander (Eng) Ltd Reddicap Trading Estate Sutton Coldfield West Midlands B75 7BY

+44 (0) 121 378 0952

The point of connection to the mains should be readily accessible and adjacent to the boiler , except for bathroom installations where the point of connection to the mains MUST be situated outside of the bathroom.

Note. Where a room sealed appliance is installed in a room containing a bath or shower then the appliance and any electrical switch or appliance control utilising mains electricity should be so situated that it cannot be touched by a person using the bath or shower.

Calmag Ltd. Unit 4---6 Crown Works Bradford Road Sandbeds Keighley West Yorkshire BD20 5LN +44 (0) 1535 210320

Sentinel Performance Solutions The Heath Business & Technical Park Runcorn Cheshire WA7 4QX +44 (0) 800 389 4670

4 SEALED SYSTEM REQUIREMENTS

Central Heating

Note. mini HE boilers are suitable for fully pumped pressurised sealed systems only.

REQUIREMENTS

1 General

The installation must comply with the requirements of BS. 6798 and BS. 5449.

2 Flow Temperature

The installation should be designed to work with flow temperatures of up to 90 ûC.

3 Working Pressure

All components of the system must be suitable for a working pressureof3bar(45lb/in care should be taken in making all connections so that the risk of leakage is minimised.

The following components are incorporated within the appliance:

a. Circulating pump.

b. Safety valve; with a non ---adjustable pre--- set lift pressure of 3bar(45lb/in

c. Pressure gauge; covering a range of 0 --- 4 bar.

d1. 6 litre expansion vessel; with an initial charge pressure of

0.7 bar (10.5 lb/in

d2. 7 litre expansion vessel; with an initial charge pressure of

1.0bar(15lb/in

For further details refer to BS.5449:1 and the British Gas Corporation publication ’Specifications for Domestic Central Heating and Hot Water’.

)formini HE C32.

) and temperature of 110 ûC. Extra

)formini HE C24 and mini HE C28.

4 Filling the system

Fill the system through a temporary hose connection from a draw---off tap supplied from a service pipe under mains pressure. Where the mains pressure is excessive a pressure reducing valve shall be used to facilitate filling.

When installing the filling connection provided with the boiler an additional WRAS approved valve must be fitted to the mains water supply upstream of the double check valve to fully comply the Water Regulations

Stop valve Additional stop valve

CH return

Temporary hose (disconnect after filling)

System filling and make ---up

Proceed with the following:

F Thoroughly flush out the whole of the system with cold

water before fitting the boiler.

F Fill and vent the system until the pressure gauge registers

1.5bar(22lb/in

F Release water from the system until a pressure of 1 bar

(15 lb/in

To av oid getting debris on the valve seat, do not use the safety valve to do this.

F Light the boiler and heat the system to the maximum

working temperature. Examine for leaks.

F Turn off the boiler and drain the system while still hot. F Refill and vent the system. F Re --- pressurise the system to the desired charge pressure

(see Table 5).

) is reached.

Hose unions

). Examine for leaks.

Mains Water Supply

Double check valve assembly Note direction of f low

mini HE --- Installation & Servicing

GENERAL

Table 5 mini HE C24, mini HE C28

System charge pressure (bar)

Safety valve setting 3.0

Vessel pre ---charge pressure (bar)

System volume (litres) V o lume of expansion vessel

75 --- --- ---

100 0.3 0.8 1.4

125 1.8 2.5 3.2

150 3.4 4.2 5.0

175 5.0 6.0 7.0

200 6.5 7.6 8.7

225 8.1 9.3 10.6

250 9.6 11.1 12.4

275 11.2 12.8 14.3

300 12.8 14.5 16.1

Multiply this factor by system volume and deduct 6 litres to obtain size of additional vessel for other system volumes.

0.5 0.7 1.0

0.7

in addition to 6 litre unit

fitted to boiler

0.063 0.069 0.074

Ta b l e 6 mi n i H E C 3 2

System charge pressure

0.5 0.7 1.0

(bar)

Safety valve setting 3.0

Vessel pre ---charge pressure

0.7

(bar)

System volume (litres) Volume of expansion vessel

in addition to 7 litre unit

fitted to boiler

75 --- --- ---

100 --- --- 0.4

125 0.8 1.6 2.3

150 2.5 3.4 4.1

175 4.0 5.1 6.0

200 5.6 6.8 7.8

225 7.2 8.6 9.7

250 8.8 10.3 11.5

275 10.3 12.0 13.4

300 11.9 13.7 15.2

Multiply this factor by

0.063 0.069 0.074 system volume and deduct 7 litres to obtain size of additional vessel for other system volumes.

5 Size of expansion vessel

For the system water expansion to be contained by the 6 litre expansion vessel fitted to the following models:

mini HE C24, mini HE C28

the cold system volume must not exceed:

96 litres when pressurised to 0.5 bar (cold)

88 litres when pressurised to 0.7 bar (cold)

81 litres when pressurised to 1.0 bar (cold)

If the pressure exceeds 2.65 bar when the boiler is up to temperature with all radiators in use then an additional expansion vessel MUST be installed on the return pipework.

For expansion volumes see Table 5.

6 Hydraulic Loss Remaining pump capacity

mH2O

For the system water expansion to be contained by the 7 litre expansion vessel fitted to the following model:

mini HE C32

the cold system volume must not exceed:

111 litres when pressurised to 0.5 bar (cold)

101 litres when pressurised to 0.7 bar (cold)

95 litres when pressurised to 1.0 bar (cold)

If the pressure exceeds 2.65 bar when the boiler is up to temperature with all radiators in use then an additional expansion vessel MUST be installed on the return pipework.

For expansion volumes see Table 6.

Guidance on vessel sizing is given in BS 7074:1 and BS 5449

For IE refer to the current edition of I.S. 813.

7 Draining the system

Draining taps MUST be located in accessible positions to permit the draining of the whole central heating system, including the central heating side of the boiler. The taps should be at least 1/2” BSP nominal size and be in accordance with BS 2879.

0 200 400 600 800 1000 1200 1400

Flow rate l/hour

mini HE --- Installation & Servicing

GENERAL

5 BOILER CONTROL INTERLOCKS

Thermostatic radiator valves.

Caradon Ideal Ltd. support the recommendations made by

leading manufacturers of domestic heating controls that heating systems utilising full thermostatic radiator valve control of temperature in individual rooms should also be fitted with a room thermostat controlling the temperature in a space served by radiators not fitted with such a valve as stated in BS5449. Such an arrangement will provide for a more efficient control of the environment and will also avoid the continuous running of the circulation pump during programmed heating ON periods, saving electrical energy.

It is therefore strongly recommended that, when thermostatic radiator valves are used, the space heating temperature control over a living/dining area or a hallway, having a heat requirement of at least 10% of the boiler output, is achieved using a room thermostat whilst other rooms are individually controlled by thermostatic radiator valves as stated in BS5449.

6 DOMESTIC HOT WATER

REQUIREMENTS

1 The domestic hot water service must be in accordance

with BS 5546 and BS 6700.

2 For the minimum and maximum working pressures of the

mini HE C24, mini HE C28 and mini HE C32 domestic hot water circuit refer to Table 1, page 4.

3 The cold water supply pipe should be flushed before

fitting the boiler.

4 The boilers are suitable for connection to most types of

washing machine and dishwashing appliances.

For further information refer to “Good Practise Guide 143” a publication of the energy efficiency office, available from the building research establishment Garston Watford WD2 7JR tel: +44 (0) 1923 664258

The boiler is fitted with an automatic internal bypass. No further system bypass is required.

Typical installation

TRV

5 When connecting to suitable showers,i.e.thosedesigned

for modulating domestic hot water, ensure that:

a. The cold inlet to the boiler is fitted with an approved

anti---vacuum or syphon non --- return valve.

b. Hot and cold supplies are of equal pressure.

6 Hard water areas

In areas where the water is ’hard’ it is recommended that a proprietary scale---reducing device is fitted into the boiler cold supply, within the requirements of the local water company.

Room T/stat

Balancing valve

mini HE --- Installation & Servicing

GENERAL

7BOILERWATERCIRCUITDIAGRAM

1 Domestic hot water (DHW) heat exchanger 2 Domestic hot water (DHW) flow switch 3 Domestic hot water (DHW) outlet pipe 4 Domestic cold water inlet cock 5 Three--- way diverter valve 6 Main circuit drainage cock

7 Cent ral heating flow cock 8 B y --- p a s s v a l v e 9 Central heating (CH) return cock 10 3 bar pressure relief valve 11 Gas cock 12 Expansion vessel 13 Gas valve inlet pressure tap 14 Modulating gas valve 15 Burner pressure tap 16 Flame detection electrode 17 Ignition electrodes 18 Burner 19 Combustion chamber 20 Primary heat exchanger 21 Fan 22 Air pressure switch 23 Venturi device 24 Flue outlet pipe 25 Air intake pipe 26 Automatic air vent 27 Overheat thermostat 28 Pump 29 Pump vent plug 30 CH temperature probe 31 CH flow switch 32 DHW temperature probe 33 CH circuit temperature/pressure gauge 34 Recuperator 35 Flue temperature probe 36 Condensate trap 37 Condensate drain pipe

mini HE --- Installation & Servicing

8 B O I L E R A S S E M B LY ---

Exploded View

INSTALLATION

9 10 11

14 15

1 Air pressure switch 2 Recuperator 3Condensatetrap 4 Overheat thermostat 5Condensingtomainheat

exchanger connection pipe 6 Primary heat exchanger 7 Inner case cover 8 Flame detection electrode 9 Ignition electrodes 10 Heat exchanger return pipe 11 Auto air vent 12 Main circuit drainage cock 13 Pump

14 DHW flow switch 15 DHW temperature probe 16 Right hand panel 17 Boiler front panel 18 Appliance data badge (inside) 19 Left hand panel 20 CH circuit pressure gauge 21 Model identification & instructions 22 Control panel door 23 Electronic control pcb 24 CH temperature probe 25 CH flow switch 26 Heat exchanger flow pipe 27 Return manifold

28 3 way diverter valve

29 DHW heat exchanger

30 Bypass pipe

31 3 bar pressure relief valve

32 Gas valve

33 Gas valve outlet pipe

34 Injector manifold

35 Burner

36 Flue hood

37 Fan

38 Expansion vessel

39 Venturi

40 Flue temperature probe

mini HE --- Installation & Servicing

INSTALLATION

9 UNPACKING

The boiler is supplied fully assembled in one pack A, together with a standard flue assembly for lengths up to 960 mm (37” 3/4), rear or side flue outlet, in pack B.

Unpack and check the contents.

Pack A contents

ATheboiler.

B Hardware pack C Wall mounting plate

D Wall mounting template

E User’s, Installation & Servicing instructions.

F Filling loop assembly

Hardware pack contents

F 22 mm CH connection pipe --- 2 off. F 22 mm Gas supply connection pipe --- 1 off. F 15 mm DHW cold inlet connection pipe --- 1 off. F 15 mm DHW hot outlet connection pipe --- 1 off. F 1/2” connection nut --- 2 off. F 1/2” sealing washer --- 3 off. F 3/4” sealing washer --- 6 off. F 3/4” Gas supply isolating valve --- 1 off. F 3/4” CH circuit isolating valve --- 2 off. F 1/2” DHW cold inlet isolating valve --- 1 off.

Pack B contents

G Air intake pipe ø 100 mm (4”), flue pipe ø 60 mm (2” 3/8)

with terminal grille assembly

H Centring spring

I Turret--- air pipe gasket J Fluepipegasket K Boiler--- turret gasket L Flue turret M Self tapping screws 4,8x13 --- 4 off N Wall finishing gasket --- internal (plastic) O Wall finishing gasket --- external (rubber)

Optional extras, if ordered, are available in separate boxes.

F Electronic programmer kits --- 24 hrs & 7 day F Extension duct kit pack D (ø 60/100) F Flue support kits ø 80, 100, 125 F Vertical outlet flue kit with elbow (ø 60/100) F 90û Elbow kit (ø 60/100) F 45û Elbow kit (ø 60/100) F Roof flue kit (ø 80/125) F Universal weather collar (for roof flue kit) F Flat roof weather collar (for roof flue kit) F Extension duct kit (ø 80/125) F 90û Elbow kit (ø 80/125) F 45û Elbow kit (ø 80/125) F Condense drain vertical (ø 80/125) F Twin pipe kit (ø 80) with air and flue terminals F Extension duct kit (ø 80) F 90û Elbow kit (ø 80) male---female F 45û Elbow kit (ø 80) male---female F Vertical condense drain (ø 80) F Horizontal condense drain (ø 80) F Condense trap F Stand---off bracket F Natural gas to LPG conversion kit F LPG to natural gas conversion kit F Condensate pump kit F High level flue outlet kit (mini HE C24, mini HE C28 only) F Pre---piping frame

INSTALLATION

10 PACKAGING

To unpack the boiler refer to the instructions on carton end flap.

mini HE --- Installation & Servicing

INSTALLATION

11 FITTING THE FLUE SYSTEM

The minimum and maximum equivalent length for c o --- a x i a l p i p e s ø 6 0 --- 1 0 0 a n d ø 8 0 --- 1 2 5 m m a r e g i v e n i n Table 7 for mini HE C24 and mini HE C28 and in Table 8 for mini HE C32 .

The minimum and maximum equivalent length for ø 80 mm twin pipe systems are given in Table 9 for mini HE C24 and mini HE C28 and in Table 10 for mini HE C32.

For roof flue systems having a flue length greater than 3m and all twin pipe systems, a condensate drain kit must be fitted at the lowest point in the system. See the list of optional extras (frame 9) for available drain kits.

Refer to the assembly instructions contained within the

INSTALLATION

chosen flue kit packaging for the correct assembly and installation.

The horizontal sections of flue pipes must have a slope not less than 1.5 deg. (25 mm per metre) towards the boiler.

In the flue kit of pack B the flue pipe is angled within the air duct therefore the air duct must be horizontally installed.

If one or more extensions need to be used they must be adequately supported so that there is no sag in the flue pipe and a minimum fall of 1.5 deg. (25 mm per metre) over the whole length towards the boiler is ensured.

Table 7 mini HE C24, mini HE C28

Minimum Maximum

C o --- a x i a l 6 0 --- 1 0 0 0.3 (11.8”) 2.7 (8’ 10”)

C o --- a x i a l 8 0 --- 1 2 5 0.5 (19.7”) 8.5 (27’ 10”)

Ta b l e 8 mi n i H E C 3 2

Minimum Maximum

C o --- a x i a l 6 0 --- 1 0 0 0.3 (11.8”) 1.8 (5’ 11”)

C o --- a x i a l 8 0 --- 1 2 5 0.5 (19.7”) 6.0 (19’ 8”)

Cuttheflueductatthesameleveloftheairductedge.

Cut this end

Groove

Horizontal Concentric

Air duct

Rear Outlet Wall thickness + 125 mm

Rear outlet+Stand --- off Wall thickness + 160 mm

Side Outlet --- RH Wall thickness + Gap +62 mm

Side Outlet --- LH Wall thickness + Gap +208 mm

Twin pipe flue kits

For calculation of total flue length, the distance MUST be measured from the centreline of the flue duct/air duct connection to the end of the flue outlet grille/air inlet duct.

For each additional 45û M&F and 90û M&F flue bend used, themaximumpermissiblelengthoffluesystemmustbe reduced by 0,9m or 1,65m respectively.

The restrictor to be used and the lengths of allowable equivalent flue outlet / air inlet ducts are indicated in Table 9 for mini HE C24, mini HE C28,inTable10formini HE C32 and in the following graph.

The restrictor size is marked on its body.

N.B.: The air intake and the flue outlet must not terminate on opposite sides of the building.

Air intake adapter

Restrictor

Gasket

Co---axial Flue kits.

Horizontal. For calculation of total flue length, the distance MUST be measured from the centreline of the concentric elbow to the end of the terminal.

Vertical outlet For calculation of total flue length, the distance MUST be measured from the centreline of the outlet connector at the boiler top panel to the end of the terminal grille.

For each additional 45û and 90û flue bend used, the maximum permissible length of flue system must be reduced by1mor1,5mrespectively.

Cutting lengths of flue and air ducts

Measure the wall thickness and, when using a side outlet, the gapbetweentheinnerwallandtheboilersidecasing. Use the following chart to calculate the cutting length of air duct.

Mark the air duct making reference on the groove.

Table 9mini HE C24, mini HE C28

Equivalent pipe length (air duct + flue duct)

Between 1 (39“) and 15 m (49’ 2”) ø50mm

More than 15 m (49’ 2”) up to 30 m (98’ 5”) ø55mm

Table 10mini HE C32

Equivalent pipe length (air duct + flue duct)

Between 1 (39“) and 24 m (78’ 9”) ø50mm

Restrictor

mini HE --- Installation & Servicing

INSTALLATION

For the correct use of the restrictors with twin pipes refer to the following diagram for the models mini HE C24,andmini HE C28.

Flue exhaust ”a”

Restrictor

50 mm

0 2 4 6 8 101214161820222426283032

Restrictor

55 mm

Allowed values

Air intake ”b”

Refer to the following diagram for the model mini HE C32.

Flue exhaust ”a”

Restrictor

50 mm

0 2 4 6 8 101214161820222426283032

Allowed values

Air intake ”b”

Cutting lengths of flue and air ducts

Measure the wall thickness and, when using a side outlet, the gap between the inner wall and the boiler side casing. Use the following chart to calculate the cutting lengths of both flue and air ducts.

Marktheairductandflueduct making reference on the groove.

Groove

Twi n P ipe

Air duct

Rear Outlet Wall thickness + 130 mm

Rear outlet+Stand --- off Wall thickness + 165 mm

Side Outlet --- RH Wall thickness + Gap + 187 mm

Side Outlet --- LH Wall thickness + Gap + 93 mm

Flue Duct

Rear Outlet Wall thickness + 130 mm

Rear outlet+Stand --- off Wall thickness + 165 mm

Side Outlet --- RH Wall thickness + Gap +67 mm

Side Outlet --- LH Wall thickness + Gap + 213 mm

INSTALLATION

12 REAR FLUE ASSEMBLY

Legend

1 Wall finishing gasket - -- external (rubber) 2 Self tapping screw 4,2x13 3 Flue turret 4 Boiler---turret gasket 5 Fluepipegasket 6 Turret --- air pipe gasket 7 Centring spring 8 Air/flue pipe with terminal grille assembly 9 Wall finishing gasket --- internal (plastic)

mini HE --- Installation & Servicing

INSTALLATION

13 WALL MOUNTING TEMPLATE

(rear flue)

IMPORTANT

Detailed installation steps are given directly on the wall mounting template

1 Tape the template into the selected position. 2 Ensure squareness by hanging a plumbline. 3 Mark onto the wall the following:

a. the wall mounting plate screw positions

b. the position of the flue duct.

(Mark the centre of the hole as well as the circumference) 4 Remove the template from the wall

INSTALLATION

14 WALL MOUNTING TEMPLATE

(side flue)

IMPORTANT

Detailed installation steps are given directly on the wall mounting template

1 Tape the template into the selected position.

2 Ensure squareness by hanging a plumbline.

3 Mark onto the wall the following:

a. the wall mounting plate screw position

b. Extend the centre line as shown.

Mark the flue duct centre from the corner (see diagram

and template)

Extended centre

Spirit level

Note. mark the centre of the hole as well as the circumference. If extension duct kit pack D has to be used, the pipes must have the correct slope as detailed in frame 11.

4 Remove the template from the wall

15 DRILLING THE WALL

Rear flue shown

IMPORTANT

Ensure that, during the cutting operation, masonry falling outside the building does not cause damage or personal injury.

1 Cut the flue hole (preferably with a 5” core boring tool),

ensuringthattheholeissquaretothewall. 2 Drill the fixing holes with an 8mm (5/16”) masonry drill.

Fit suitable wall plugs (not provided).

Note. If the teminal is to be sited within 25---40 mm of a corner or vertical pipe (refer to Table 4) then the hole MUST be acc urately cut and the rubber weather seal trimmed.

5” diameter flue hole

Section through wall

Note: Check all of the hole positions before drilling.

mini HE --- Installation & Servicing

INSTALLATION

16 CUTTING THE FLUE

Notes.

A If using the extension ducts go to Frame 17.

B If stand---off frame is used it is essential this is taken into

consideration when marking the flue (see Frame 11).

1 Measure and note the wall thickness. 2 Fo r side flues measure and note the gap between the

casing and wall. 3 From the table in Frame 11, determine the flue length

required. Mark and cut both outer and inner tube.

Ensure the support spring clip is in position to facilitate

cutting. 4 Toensurethetubeiscutsquare,markthefluealltheway

around.

17 FITTING THE EXTENSION KITS

Measure from

this

RING

INSTALLATION

1 Fittheinnerflueextensionductontotheinnerflueduct.

2 Fit the outer flue extension duct onto the outer air duct.

3 Repeat steps 1 and 2 if a second flue extension is

required.

4 Measure and mark the flue length required onto the flue,

measuring from the ring near the terminal. (Refer to Frame

11 for the detail of flue length calculation).

5 To ensure a square cut, mark the flue all the way around.

6 D e --- b u r r t h e c u t e d g e s.

Measure from

this

RING

mini HE --- Installation & Servicing

INSTALLATION

18 FITTING THE OPTIONAL ROOF FLUE

KIT (Flat or Pitched)

Note.

A flat or pitched roof flashing plate (not supplied) is required before proceeding with the installation of this kit.

This kit is suitable for both flat and pitched roof terminations, using a concentric flue to run vertically from the top of the boiler and terminating above roof level.

Connection to the top of the boiler is made using a separately supplied vertical connector.

WEATHER PROOFING

INSTALLATION

Where the flue passes through the roof line an adequate seal must be made. This is achieved by using either:

--- Flat roof weather collar

-- - Universal weather collar.

ACCESSORIES

Flue Duct Extension Kits are available for flue lengths extending beyond 1m. These packs contain 1m extension ducts and may be cut to the desired length.

19 ROOF FLUE KIT

CONTENTS/OPTIONS

A Flue assembly with terminal B Flue seal collar C3,5X13screw D Pitched roof tile/flat roof tile weather collar E Vertical connector (80/125) F Retention screws G Roof flue extension duct kit (80/125) H90û elbow kit (80/125) I45û elbow kit (80/125)

If the offset vertical option is used an elbow Kit is required. For a full accessories list refer to Frame 9, Optional Extras.

mini HE --- Installation & Servicing

INSTALLATION

20 FLUE TERMINAL POSITION

The terminal should be positioned so that products of combustion can safely disperse at all times.

Pluming may occur at the termination so, where possible, terminal positions where this could cause a nuisance should be avoided.

Minimum dimensions are shown below.

610 mm

min.

610 mm

min.

21 FLUE ARRANGEMENT

80/125

Part No. Description

n/a Maximum Flue Length

(m)

201 548 Flue ext. 80/125 7 7 5

201 547 Terminal Vertical Roof

80/125

158 431 WeatherCollarPitched

Roof

158 432 Weather Collar Flat

Roof

201 550 90û Elbow kit (80/125) 4 4 4 201 551 45û Elbow kit (80/125) 4 4 4

202 708 Vertical Connector 1 1 1

Note.

The equivalent flue length resistance of the 90û elbow kit (80/125) is 1.5 m and the 45û elbow kit (80/125) is 1.0 m.

Quantity

C24 C28 C32

8.5 8.5 6

1 1 1

Terminal Position Minimum Dimension

Directly below an opening,

airbrick,windows,etc.

Below plastic / painted

gutters

Painted surface 300 mm

Below eaves or balcony 500 mm

300 mm

INSTALLATION

mini HE --- Installation & Servicing

+ 47 hidden pages

Mamiya C32, C28, C24 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual