Ambirad VCHE 50, VCHE 40, VCHE 30, VCHE 60, VCHE 75 Installation Servicing & Operating Instructions

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0408--CHEAMEN

Floor Standing Gas Fired Heaters

VCHE - HCHE

Mk 2

approved

Installation, servicing

Operating Instructions

Please read this document carefully before commencing installation commissioning and/or servicing.

Leave it with the user or attached to the appliance or gas service meter after installation.

WARNING

Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury,

or death. All work must be carried out by appropriately qualified persons.

Subject to modifications

Ambi-Rad Limited, Fens Pool Avenue, Brierley Hill, West Midlands DY5 1QA (United Kingdom)

Tel : 01384 489700

fax : 01384 489707

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INDEX

1.0 Introduction

1.1 General Information

1.2 Quality Products

1.3 CE Approved European Directives

1.4 Product Information

1.5 Warning

2.0 Technical Specifications

2.1 Data Sheets

2.2 Dimensions

3.0 Mechanical/Electrical Services

3.1 Gas Connection

3.2 Electrical Connection

3.3 Ventilation Requirement

4.0 Installation

4.1 Location

4.2 Heater Clearances

4.3 Flue

4.4 Nozzled Heaters

4.5 Ducted Heaters

4.6 Filters

4.7 Controls

5.0 Commissioning

5.1 Pre-Commissioning Checks

5.2 Commissioning Procedure

5.3 Commissioning Outlets

5.4 User Instructions

6.0 Instructions for Servicing

6.1 Frequency

6.2 Procedures

6.3 Re-Commissioning

7.0 Fault Finding

8.0 Spare Parts

9.1 3D Drawing

9.2 Parts List

9.0 Reference Standards

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1.0 Introduction

1.1 General

1.1.1 Before installation check that the appliance as described on the packaging label is in accordance with the correct type and model specified on the data plate and complies with your customer order.

1.1.2 The heater is delivered wrapped in heavy duty polythene and should be checked to ensure that it has been delivered undamaged.

1.1.3 Please read this document before commencing installation. The onus rests with the installer to ensure that all relevant manuals are read and understood, especially with regard to any safety instructions stipulated by the manufacturer.

1.1.4 These instructions are only valid for the country of use indicated on the appliance, i.e. GB - IE. If these symbols are not shown it is necessary to obtain appropriate technical instructions which will provide information concerning the necessary modification of the appliance for use in the country concerned. Such instructions may be obtained from your supplier upon request.

1.1.5 Check that the local distribution conditions of electricity supply, type of gas and pressure and adjustment of the appliance are compatible.

1.1.6 When installed in Great Britain the total installation must comply with the requirements and recommendations of British Standard BS 6230 "Installation of Gas Fired Forced Convection Air Heaters for Commercial and Industrial Space Heating". The installation must also be in accordance with the relevant requirements of "The Gas Safety (Installation and Use Regulations) and (Amendment Regulations) and The "Building" and "Electrical Regulations" (in GB the IEE Regulations). Installation, commissioning and servicing must be carried out by competent CORGI registered gas installers.

1.1.7 Warning! Unauthorised modification of this appliance or departure from use in the manner for which it was intended by the manufacturer, or installation in a manner contrary to these instructions may constitute a hazard and jeopardise all warranties. Deviations should only be carried out after formal consent has been obtained from the manufacturer.

1.1.8 Caution! Ensure that the environment in which the air heater is to be installed will not create a hazard, i.e. where excessive (volatile) dust, flammable or corrosive substances and/or vapours and combustible materials may be present. Suitable protection should be given to prevent damage to the appliance, for example from fork lift trucks.

1.1.9 These appliances have been tested and set according to the data plate before leaving the factory.

1.2 Quality Products

1.2.1 The Ambi-Rad range of gas fired cabinet heaters is manufactured in the EC and supplied in accordance with BS EN 9002: Quality Assurance System.

1.2.2 Certificates of conformity are available from the Quality Control department at Ambi-Rad Limited.

1.3 CE-Approval-European Directives

1.3.1 Ambi-Rad cabinet heaters have been fully assessed and tested and meet the following EC Directives:

- Gas Appliance Directive

(90/396/EEG)

- Machinery Directive

(89/392/EEC)

- Low Voltage Directive

(73/23/EEC & 93/68/EEC)

- Electromagnetic Compatibility

Directive (89/336/EEC & 91/36 EEC)

- Product Liability Directive (65/379/EEC)

1.3.2 In addition Ambi-Rad gas fired cabinet heaters conform to the followi ng harmonised standards:

BS EN 676 :

Automatic forced draught burners for

gaseous fuels. EN 1020 :

Requirements for non domestic gas fired forced convection air heaters for space heating incorporating a fan to assist transportation of combustion air and/or combustion products.

BS EN 292 - Part 1 : Safety of Machinery - Basic Concepts, General Principles for terminology, methodology

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BS EN 292 - Part 2:

Safety of Machinery - Basic Concepts, General Principles for Design Technical Principles and Specifications.

BS EN 60204 - Part 1: Safety of Machinery - Electrical Equipment for Machine Specification for General Requirements.

BS EN 60335 - Part 1: Safety of Household and Similar Electrical Appliances General Requirements.

BS EN 55014 Limits and methods of measurement of radio disturbance characteristics of electrical motor-operated and thermal appliances for household and similar purposes, electric tools and similar electric apparatus.

prEN 50165 Electrical equipment of non-electric heating appliances for household and similar purposes, safety requirements.

1.4. Product Information

1.4.1 Ambi-Rad cabinet heaters are available with burner outputs from 30kW to 270kW and can be floor mounted (VCHE units) or suspended (HCHE units). Cabinet heaters can be used in free blowing or ducted applications. Each heater must have its own individual open flue.

1.4.2 All cabinet heaters are fitted with a pretested and set forced draught burner. A sequential control box is fitted to each burner to provide safety. Note: No asbestos or soldered joints are present in the construction of the heater.

1.4.3 All the materials selected can withstand the range of chemical, mechanical and thermal demands expected during the foreseen and normal use of the product, as stipulated by manufacturers' instructions and recommendations.

1.4.4 Before final location of the product the following criteria should always be considered in placing the heater:-

• Flue outlet access

• Placing for efficient distribution of warm air

• Gas supply

• Electrical services

• Fresh air supply (when applicable)

• Service access and maintenance

requirements

1.5 Warning

Heaters should not be installed in a corrosive or solvent atmosphere (i.e. near plating or degreasing plants), in areas where there is a fire risk, or any other environment which is detrimental to the heater or its operation. Consult BS 6230 for further information on hazardous areas.

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2.0 Technical Specifications

2.1 Natural Gas – Single Stage (table 1a)

VCHE/HCHE Model

FRAME size

Heat input (gross)

Heat output

Burner type Riello

kW Btu/h kW Btu/h

30 40 50 60 75 90 120 140 150 180 215 250

I II III IV

36,6 49,1 62,2 76,6 91,1 108,6 145,3 169,7 185,3 215,4 262,0 298,8

124883,9 167685,3 212234,4 261369 310844,9 370557,1 495782,2 579038,2 632267,4 734972,4 893977,6 1019544

30,4 40,2 51,5 63,3 75,0 89,3 119,2 140,0 153,0 178,0 216,7 248,2

103728,7 137290,2 175724,6 215987,7 255909,6 304703,1 406725,7 477698 522055,6 607358,8 739408,2 846890,2

40 40 40 40 40 40 40 40 40 40

GS5 GS5 GS5* GS10 GS10 GS10* GS20 GS20* GS20* GS20*

RS28.1 RS28.1

Gas consumption (1) m³/hr Minimum gas inlet mbar 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20 17.5/20

pressure ins WG 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 Burner head pressure Head setting (at o

flue resistance) Air shutter setting (at 0 flue resistance) Flow pressure switch setting

CO2 (3) Gross flue

temperature (20°C °C ambient)

(1) : G20 : 10.48 kWh/m³– 1013 mbar – 15°C – G.C.V. (2) : CO2 figure measured by reference condition with reference gas (this figure can be subject to fluctuations in different installations on site (see § 6.2.1 /g)

(*) : extended head

mbar 2,1 2,9 4,7 4,5 4,1 5,2 3,4 4,0 5,1 6,0 5,6 8,0 ins WG 0,84 1,16 1,89 1,81 1,65 2,09 1,36 1,61 2,05 2,41 2,25 3,21

Number

mbar

3,49 4,68 5,94 7,30 8,69 10,36 13,86 16,19

1,53,54,51,42,0

2,75 3,5

3,35 4,7 3,3

9,7 10,0 9,3

190 218 217 229 246 232 227 198 192 190 210 185

5,0 2,8

4,1 5,1

3,5 3,7

9,69,9

3,8 2,0 3,0

2,9

5,7 5,16,7 4,4

9,7 9,3 9,9 9,09,5

3,7 5,7 5,9

17,66 25,00 28,51

20,55

4,03,5

6,0

6,0 3,0

2,0

9,2 9,3

4,0

8,05,1

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(

)

(

)

2.1 Natural Gas – Single Stage (table 1b)

VCHE/HCHE Model

FRAME size I II III IV V Nominal air flow Available outlet pressure

ducted outlet

Air throw (approx.) (1) Temperature rise throu

heater

nominal Sound level (2) (for guidance only) Flue spigot outside diameter

Main fan motor size Total absorbed

electrical power

h°K

m³/hr ft³/min

Pa m

°F dB(A)

Electrical supply

Inlet gas connection

ins BSP

Weight kg

30 40 50 60 75 90 120 140 150 180 215 250

2500 2500 5180 5180 5180 7140 8750 10500 11500 12800 14100 17330 1488 1488 3083 3083 3083 4250 5208 6250 6845 7619 8393 10315

95 95 130 130 130 125 150 200 250 18 18 21 21 21 20 25 25 27 30

59 59 69 69 69 66 82 82 88 98

215 250 160

25 30

82 98 36 50 29 36 42 37 40 39 39 41 45 42 65 90 52 65 76 67 72 70 70 74 81 76

52 52 53 53 53 59 61 61 62 65 63 67

125 125 150

0,9 0,9 1,6

178 178 178 178

2,2 3,0

178 223

4,00,55 0,55 0,74 0,74 0,74 1,5

223223 223

4,0 4,0 5,5

8,44,6 5,1 5,8 5,51,6 1,6 2,4 2,8

230/240V - 1N ~ 50 Hz 400/415V - 3N ~ 50 Hz

1/2 3/4 1 1/4

1/2 3/4 3/4 3/4 3/4 3/4 1 1/4 1 1/4

1 1/4

190 190 225 225 225 280 292 300 320 320 360 380

(1) : unobstructed in still air with a terminal velocity of 0.25m/s (2) : Condition r=5m; Q=2; A=160; louvres in neutral position

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2.2 Dimensions

Figure 1a : unit with discharge nozzle

Vertical heater range

Front view

Figure 1b : unit with discharge plenum

Front view

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Figure 1c – Side view

Figure 1d

air inlet

Figure 1e

Figure 1f : burner mounting flange

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Figure 2a – Side view

Horizontal heater range

Figure 2b – Front view

Remark : The fixation eyes (4x dia 22.5) may only be used to put the unit into horizontal p osition a fter del ivery . It is strict ly forb idden to use the fixation eyes for suspending the unit.

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Dimensions (mm) (table 2)

VCHE/HCHE 30 40 50 60/75 90 120 140 150/180 215 250 Frame size I II III IV V

A1/A2 613 613 859 859 1158 1158 1305 1305 1504 1504 C1/C2/C3 865 865 865 865 795 795 1186 1186 1186 1186

D1/D2/D3 1007 1007 1019 1019 1041 1041 1184 1184 1111.5 1111.5 E1/E2/E3 1441 1441 1465 1465 1637 1637 1750 1750 1677.5 1677.5

outside dia 2 (flue outlet)

F1/F2/F3 1804 1804 1804 1804 2012 2012 2073 2073 2012 2012 inside dia 1

(burner inlet) H1 2088 2088 2168 2168 2376 2378 2477 2477 2466 2466

H2 2164 2164 2114 2114 2400 2400 2395 2395 2334 2334 K1/K2 35.5 35.5 107.5 35.5 32 32 105.5 33.5 32.7 32.7 L 520 520 591 591 675 675 786 786 675 675 M 1284 1284 1213 1213 1337 1337 1287 1287 1337 1337 P1 284 284 364 364 364 366 404 404 454 454 P2 360 360 310 310 388 388 322 322 322 322 dia BC 142 142 145 145 162 162 180 224 180 224 R M8 M8 M8 M8 M8 M8 M8 M8 M8 M8 S 100.4 100.4 102.5 102.5 114.5 114.5 127.3 158.4 127.3 158.4

2.3 Number of nozzles on heaters (figure 3)

125 125 150 150 178 178 178 223 223 223

110 110 120 120 140 140 155 155 155 155

30/40 50/60/75 90/120/140/180/215/250

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3.0 Mechanical/Electrical Services

3.1 Gas connection

3.1.1 Connection to a gas service may only be carried by suitably qualified persons. The gas installation must comply with the rules in force using materials appropriate for gas service installations.

3.1.2 Check that the gas category is in accordance with the data described on the air heater.

3.1.3 An adequate gas supply sized to provide the dynamic pressure for the volume required by the air heater(s) is essential to maintain the nominal heat input.

3.1.4 A 90° action gas service tap and, to facilitate servicing, a disconnect union fitting must be provided adjacent to the appliance.

3.1.5 Ensure that a gas service includes a filter and has been tested and purged in accordance with prescribed practice prior to commissioning and taking the air heater into service.

Warning: Never use a flame to test for gas soundness.

3.2 Electrical connection

3.2.1 The electrical installation may only be carried out by suitably qualified persons observing the rules in force.

3.2.2 Check that the electrical specification is in accordance with the specified d ata on the air heater. A unique appliance wiring diagram is supplied as a separate document attached to this one, plus an additional copy attached to the air heater.

3.2.3 These appliances must

3.2.4 A lockable main switch must be installed adjacent to each appliance and in view when facing the service compartment. The isolator must have a contact separation of at least 3.0mm on all poles.

3.2.5 The cabinet heaters are foreseen with a control unit supplied by Ambi-Rad.

3.2.6 Ensure when planning the external appliance control circuitry that power will be supplied at all times to the air heater, even when it is control switched in the ‘heat-off’ mode. This is necessary to ensure that the fan can operate independently of the heating control. Therefore never automatic controls that electrically isolate the appliance.

be earthed.

incorporate

Figure 4 :

Legend

c Control unit d Fuse

3.3 Ventilation requirements

3.3.1 It is essential that sufficient fresh air is provided for combustion and room ventilation. Most traditional building constructions have a natural air change rate of at least 0.5/h.

Where it is know n that the air change rate is

at least 0.5/h and the volume of the heated space is greater than 4.7m

per kW of total rated heat input, additional ventilation is not required.

3.3.2 Building volume limits for Ambi-Rad

cabinet heaters based upon 4.7m

per kW of rated heat input for one air heater only (table 3)

Room

Volume

Frame Model

III

30 36.6 175 40 52.2 245

50 62.2 295 60 76.6 360 75 91.1 430

90 108.6 510 120 145.3 685 140 169.7 800 150 185.3 870 180 215.4 1015 215 262.0 1230 250 298.8 1405

Heat

Input

If the minimum volumes stated above exist together with appropriate similar allowances for other combustion plant that may be installed in the same space or zone, then additional ventilation is not required.

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3.3.3 Where it is known that the air change rate is less than 0.5/h or where the building volume is less than 4.7m ventilation grilles must be provided at low level, i.e. below the level of the appliance flue connection. In cases where doubt exists over the air change rate ventilation should be provided. For air heaters of heat input less than 60kW the total minimum free area shall not be less than 4.5 cm for low level inlet and 2.25cm² for high level inlet. For our heaters of heat input 60kW or more the total minimum free area shall not be less than 540cm of the 60kW rated heat input for low level grills and 270cm² plus 2.25cm² per kW in excess of the 60kW rated heat input for high level outlet grills.

3.3.4 Air Supply Requirement for Combustion

and Ventilation (table 4).

VCHE Model

Frame

30 36.6 165 82

40 52.2 235 117 50 62.2 820 410 60 76.6 885 442

75 91.1 950 472

III

90 108.6 1030 515 120 145.3 1195 597 140 169.7 1305 652 150 185.3 1375 687 180 215.4 1510 755 215 262.0 1720 860 250 298.8 1885 942

Note: Ventilation grilles must be installed so that air is drawn directly from outdoors. In the event that communication from the space where the heater is installed to outdoors is via another room then the route to outdoors must be ducted through the communicating area. The grille velocity for all air supply must not exceed 2.0 m/s. Grilles should be sited where they cannot easily be blocked or flooded. Notices should be provided advising about the need to keep air supply grilles unobstructed.

3.3.5 Where mechanical ventilation is used it shall be by mechanical inlet with either mechanical or natural extraction. Automatic means of control such as interlocks must be provided. The function of other ventilation plant in the zone must be taken into account. At no time should it be possible to create a negative pressure in the zone as this will lead to a hazardous situation whereby the air heater flue will act as a pressure relief.

per kW of heat input

per kW of total rated heat input

plus 4.5cm2 per kW in excess

Heat

Input

Low

Level

Grill cm²

High

Level

Grill cm

3.3.6 Normally cabinet air heaters, which are used in the free, blowing mode, i.e. without discharge air ducting, are installed w ithin th e room to be heated. If it is necessary to install the air heater in a separate room and blow the air into an adjoining room then a short duct may be used to connect the appliance to the air discharge louvre. A return air grille must be provided to ensure that an unobstructed path for recirculation air back to the air heater is maintained. This is to ensure that a negative pressure cannot develop within the space where the air heater is installed. Grilles sized in accordance with table below must be installed at low level. Sizes stated must be regarded as the minimum free area size to be fitted. Such grilles should be situated as low as possible in the dividing wall and in a location where they are un likely to become obstructed. It is recommended that a guard be fitted to prevent obstruction, i.e. stored materials. Permanent notices should be fitted in a prominent location on either side of the grille worded "This grille must be kept clean and unobstructed at all times".

Return air grille sizes based upon the appliance operated at standard airflow. (table 5)

VCHE HCHE

Frame

III

120 8750 12160 140 10500 14600 150 11500 16000

180 12800 17800 215 14100 19500

250 17330 24000

Air Volume

30 2500 3480 40 2500 3480 50 5180 7200 60 5180 7200 75 5180 7200 90 7140 9900

Grille Size cm2

For spigot connection sizes to heater see fig. 10 & table 10 in section 5. For appliances operating at higher air volumes the size should be calculated to ensure that the grille velocity does not exceed 2.0 metres per second.

3.3.7 Where ducted cabinet heaters are installed within a separate room from the space bein g heated and the appliance does not have a direct supply connection to the outside, a return air grille must be provided to ensure that an unobstructed path for recirculation of air back to the heater is maintained. This is to ensure that a negative pressure cannot develop within the space where the air heater is installed.

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4.0 Installation

4.1 Location

4.1.1 Ensure the structural elements of the building are adequate to carry the weight of the appliance and its ancillary components, i.e. the flue system, and that the surface on which the heater is located is level in all plains and non-combustible.

4.1.2 Sufficient space must be maintained around the heater for servicing and the appliance should not be sited where it may suffer damage, e.g. forklift trucks or traffic.

4.1.3 The location must also allow for fitting an effective flue system and for adequate clearance for the air supply, return air, circulation, gas and electrical supplies whilst providing good and safe working access.

4.1.4 When moving the heater it is strongly advised that the lifting eyes are used. Adequate clearance from combustible materials must be maintained between the appliance and its flue system.

4.1.5 The horizontal cabinet heater (HCHE) must be suspended as illustrated in figure 5. When suspending the horizontal units, ensure the structural elements of the building are adequate to carry the weight of the appliance and its ancillary components (e.g. : flue system, duct system, ...). Unit may only be suspended by means of a frame on which the unit must be installed. It is strictly forbidden to make use of the fixation eyes to suspend the unit!

When unit is installed as a ducted heater, the duct connections must be installed as described in § 4.5.3. Ensure the dimensions of inlet & outlet duct are the same. When the air intake is installed without a grille at the backside of the unit, ensure that a protection grille IP20 is installed to avoid the penetration of objects into the blower compartment.

Figure 5 :

4.2 Heater clearances

4.2.1 The following minimum clearances must be observed when installing the heater to enable easy access to the heater:

Minimum clearance around a vertical

heater

(table 6)

VCHE

Frame

Front *

30 800 500 500 500 1200 40 50 800 500 500 500 1500 60 800 500 500 500 1500 75

90 900 600 600 600 1500 120 140 1000 800 800 600 1750 150 1000 800 800 600 1750 180 215 1000 1000 1000 2000 2000 250

* Measured from front panel. ** Measured from top of outlet nozzle All dimensions in mm. Front is when looking at the burner.

800 500 500 500 1200

800 500 500 500 1500

III

900 600 600 600 1500

1000 800 800 600 1750

1000 1000 1000 2000 2000

LHS

RHS

Rear

Top**

Minimum clearance around a horizontal

heater

(table 7)

HCHE

30 800 500 500 500 40 50 800 500 500 500 60 800 500 500 500 75 90 900 600 600 600 120 140 1000 600 800 800 150 1000 600 800 800 180 215 1000 2000 1000 1000 250

Frame

III

front*

800 500 500 500

900 600 600 600

1000 600 800 800

1000 2000 1000 1000

Rear

side

Bottom

Top

* Measured from front panel

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4.3 Flue

4.3.1 Ambi-Rad cabinet heaters must be connected to a flue system venting the products of combustion directly to outdoors.

Flue systems must be installed in accordance with the rules in force taking into account the location of flue termination relative to the construction elements of the building, i.e. windows, roof levels, etc., and in accordance with statutory requirements.

4.3.2 Ambi-Rad recommends that appliances are connected to individual flues sized in accordance with the diameter appropriate to the appliance flue connection socket.

Flues must be terminated with an approved

terminal fitting.

Figure 6

Attention : ensure that the connection of

the flue to the cabinet heater is completely air tight or sealed.

4.3.3 A minimum length of 2.0m is required to ensure a good flue draught condition.

4.3.4 Install the flue elbow or T-with drip pan directly into the appliance flue socket and secure firmly using self-tapping screws. Seal the joint with high temperature sealant or fibreglass rope and fire clay.

4.3.5 The use of twin wall flue should be considered if condensation in the flue system is a possibility.

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4.4 Free blowing nozzled Heaters

4.4.1 Nozzle boxes (options 203 / 203.2) When the unit is ordered with option 203 or

option 203.2 (nozzle boxes), the nozzle top plate is installed on the unit. The nozzle boxes are supplied loose and must be installed on the top plate of the heater, as shown in figure 7

Each nozzle box must be correctly positioned in order to obtain the desired air distribution The louvers can be adjusted. It is forbidden to close all louvers at a time as overheating could occur. For safety reaso ns it is recommended to wear gloves & glasses when adjusting the louvers.

(*) :Quantity of nozzle boxes & fixing screws 2 for types 30 & 40 + 4 fixing screws 3 for types 50/60/75 + 6 fixing screws 4 for types 90→250 + 8 fixing screws

It is recommended to fix the nozzle boxes to

the top panel using 2 fixing screws. This will secure the nozzle boxes particularly when applied on horizontal units

Figure 7 : Nozzle box

4.4.2 Discharge plenum (option 203.3) (figure 8) The discharge plenum is designed to be

installed on top of the VCHE series. When ordered with this option, the unit is delivered without top plate so that the discharge plenum can easily be pushed in the top outlet of the unit. A plastic bag contains the needed fixing screws (qty 12 for the sizes 30 & 40 / qty 14 for the sizes 50, 60 & 75 / qty 16 for the sizes 90 & 120 / qty 16 for the sizes 140, 150 & 180 and qty 18 for the sizes 215 &

250) (see fig. 8).

The horizontal louvers may be adjusted to

obtain proper deflection and air pattern.

For safety reasons, it is recommended to wear

gloves and glasses when adjusting the louvers.

Tabl e 8a: Number of horizontal louvers per

side :

VCHE

N° of

sides

Hor. louvers

30/40 4 4 50/60/75 4 3 90/120 4 5 140/150/180 4 3

215/250

2 2

The different “Open/Closed” combinations of

the louvers :

- during heating all louvers may be fully opened

- 1 fully open & 3 fully closed louvers (all directions)

- 2 fully open & 2 fully closed louvers (all directions)

- for protection of fan motor and proper heater operation do not close all louvers at a time

- a minimum of 2 open louvers per direction must always be respected

4.4.3 Vertical louvers (option 207.1) (fig. 9) The discharge plenum (option 203.3) can be

equipped with vertical louvers thus enabling a horizontal deflection of the air (max. ! 150°). The vertical louver frame must be securely screwed in the openings (outlets) foreseen in the bottom and upper side of the plenum).

When adjusting the vertical louvers wear

gloves and glasses.

Closing all the vertical louvers at a time is

forbidden as this could result into an air obstruction influencing the LC3 (maximum temperature thermostat).

The number of vertical louver assemblies, the

vertical louvers and the fixing screws vary per model. See table 8b below.

VCHE Vertical

30/40 4 6 24 50/60/75 4 8 24

90/120 140/150/180 4 8 14 215/250

louvers

assy

2 2

4 2

Vertical louvers

2x3

Fixing

screws

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Figure 8 : Nozzle plenum

Figure 9 : Vertical louvres

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4.5 Ducted Heaters

4.5.1 The Ambi-Rad ducted cabinet heater is designed to be used with discharge ducting.

Remark

fixation method applies for ducted air outlet

Figure 10

A positive seal should be made between any ducting and the air heater. A flexible connection is desirable to eliminate transmission of noise and to take account of thermal expansion.

4.5.2 Consideration should be given to the application of duct fittings directly connected to the appliance. Air outlet elbows, transitions etc. should be designed to ensure an unrestricted and turbulent free air flow. This requirement is to ensure than an even air temperature is maintained when leaving the appliance thus eliminating heat exchanger "hot-spots" and nuisance shutdown of the burner due to over heating.

4.5.3 Figures 8 and. 10 illustrate the principle and the method of fixing duct channels to the heater

- ducts must have adequate duct flanges to

fit into the frame structure of the heater

- the dimensions DA1/DA2/DA3/DA4 refer to

the duct flange; the dimensions DB1/DB2/DB3/DB4 refer to the duct.

Attention must be given to the motor load when applying discharge ducting. Duct outlets must be adjusted when necessary to meet the values mentioned in table 9.

- duct flanges must be screwed to the frame

structure; holes are provided in the frame

Table 9

Frame Model Nominal

airflow

Available outlet

static pressure

Motor load

(maximum)

m³/h Pa (A) (A) (V)

Standard airflow conditions

II 50/60/75 5180 130 9.00 7.8 230V – 1N

III

30/40 2500 95 4.00 3.4 230V – 1N

90 7140 125 3.20 2.3 400V – 3N 120 8750 150 5.08 3.7 400V – 3N 140 10500 200 6.60 5.4 400V – 3N 150 11500 215 8.00 7.8 400V – 3N 180 12800 250 8.50 8.4 400V – 3N 215 14100 160 9.00 7.0 400V – 3N 250 17330 250

: fig. 10 shows ducted air inlet fixation – same

DA3

Motor current

DB3

Voltage

normal use (*)

11.50 11.0 400V – 3N

High airflow conditions (when option 403 is applied)

Frame III 90 8750 150 5.08 3.7 400V – 3N Frame IV 140/150 12800 250 8.50 8.4 400V – 3N

Frame V 215 17330 230 11.50 11.0 400V – 3N

High outlet static pressure conditions (when option 404 is applied)

Frame III 90 7140 205 5.08 3.7 400V – 3N

Frame IV

Frame V 215 14100 330 11.50 11.0 400V – 3N

(*) Current is measured in cold air conditions (heating off) while unit is working at standard air flow. However, measuring motor

We strongly recommend respecting the figures given in table 9.

140 10500 350 8.50 8.4 400V – 3N 150 11500 310 8.50 8.4 400V – 3N

current of 10% lower than the figures mentioned in table 9, means that the air flow will be lower and the ∆T higher. In this case overheating can occur. To avoid this problem, larger outlets must be provided. In case motor current is greater than the maximum motor load (mentioned in table 9) duct outlet openings must be decreased so that motor load becomes lower.

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4.5.4 Ducted air outlet on VCHE/HCHE units (std. option 206.1) In this situation, the unit is delivered without nozzle boxes (option 203) or outlet discharge plenum (option 203.3). The ducts must be connected to the air outlet

Table 10a (refer to fig. 8) : duct dimensions required for ducted outlet on VERTI CAL model (VCHE)

VERTICAL MODEL VCHE

Frame Model

I 30/40 761 509 721 469

II 50/60/75 761 755 721 715 III 90/120 691 1054 651 1014 IV 140/150/180 1082 1201 1042 1161 V 215/250 1082 1400 1042 1360

Duct flange dimensions

(mm)

Width DA1 Depth DA2 Width DB1 Depth DB2

Table 10b (refer to fig. 8) : duct dimensions required for ducted outlet on HORIZONTAL model (HCHE)

HORIZONTAL MODEL HCHE

Frame Model

Duct flange dimensions

Height DA1 Depth DA2 Height DB1 Depth DB2

I 30/40 761 509 721 469

II 50/60/75 761 755 721 715 III 90/120 691 1054 651 1014 IV 140/150/180 1082 1201 1042 1161 V 215/250 1082 1400 1042 1360

Attention must be given to the motor load when applying discharge ducting. Duct outlets must be adjusted when necessary to meet the values mentioned in table 9.

(mm)

4.5.5 Ducted air inlet on VCHE/HCHE units The unit is designed so that it can be

installed with inlet air ducts.

Vertical units

: Option 541.1 = left Option 541.2 = right Option 541.3 = rear Horizontal units

: Option 541.4 = end Option 541.5 = top Option 541.6 = rear Option 541.7 = bottom

Table 11a (refer to fig. 10)

VERTICAL MODELS VCHE

Frame Model Option

I 30/40

II 50/60/75

III 90/120

IV 140/150/180

V 215/250

541.1 (left

541.2 (right)

541.3 (rear) 441 761 401 721

541.1 (left)

541.2 (right)

541.3 (rear) 512 761 472 721

541.1 (left)

541.2 (right)

541.3(rear) 596 691 556 651

541.1 (left)

541.2 (right)

541.3 (rear) 707 1082 667 1042

541.1 (left)

541.2 (right)

541.3 (rear) 596 1082 556 1042

Duct flange dimensions

Height DA3 Width DA4 Height DB3 Width DB4

441 509 401 469

512 755 472 715

596 1054 556 1014

707 1201 667 1161

596 1400 556 1360

(on top of the heater for vertical model or at the left side of the heater for horizontal models). Respect the dimensions for the duct air outlet and for the flange as indicated in table 10a & 10b.

Duct channel dimensions

(mm)

To enable free blowing of the air into the blower system, it is forbidden to install air

baffles or elbows in the last part ( !0.75m) of the duct connected to the heater.

Respect the normal motor current as shown in table 9 as a normal motor current guarantees a normal airflow and a normal ∆T. Respect dimensions for duct air inlet and for the flange as indicated in table 11a & 11b

Attention : Never install the inlet air ducts in combination with the standard protection air inlet grille. This situation may constitute a hazard & jeopardise all warranties.

(mm)

Duct channel dimensions

(mm)

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Table 11b (refer to fig. 10)

Frame Model Option

541.5 (top)

I 30/40

II 50/60/75

III 90/120

IV 140/150/180

V 215/250

541.7 (bottom)

541.6 (rear) 761 441 721 401

541.4 (end) 761 509 721 469

541.5 (top)

541.7 (bottom)

541.6 (rear) 761 712 721 672

541.4 (end) 761 755 721 715

541.5 (top)

541.7 (bottom)

541.6 (rear) 1054 596 1014 556

541.4 (end) 691 1054 651 1014

541.5 (top)

541.7 (bottom)

541.6 (rear) 1082 707 1042 667

541.4 (end) 1082 1201 1042 1161

541.5 (top)

541.7 (bottom)

541.6 (rear) 1082 596 1042 556

541.4 (end) 1082 1400 1042 1360

HORIZONTAL MODELS HCHE

Duct flange dimensions

Height (1)

Depth (2)

DA3

509 441 469 401

755 512 715 472

1054 596 1014 556

1201 707 1161 667

1400 596 1360 556

(mm)

Width

DA4

Duct channel dimensions

Height (1)

Depth (2)

DB3

(mm)

Width

DB4

(1) : Depth : top/bottom

(2) : Height: end/rear

4.5.6 Air inlet via an air inlet duct with extra

filter cabinet (option 501.x) (fig. 11).

The cabinet is equipped with sliding rails for installing the flat filter elements. EU4 panel filters (1”) can be used.

Figure 11

The filter elements can be replaced without removing the duct. The tables 12a & 12b on next page show the different possibilities and option numbers.

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Table 12a

VERTICAL MODEL

Frame Model Option Location Dimensions

(mm)

I 30/40 501.7 Rear 622x394 2 443 763 466 I 50/60/75 501.7 Rear 622x394 3 514 763 471 III 90/120 501.7 Left 495x495 6 598 1056 465 IV 140/150/180 501.7 Left 495x495 6 709 1203 560 V 215/250 501.7 left 622x495 6 598 1402 567

Table 12b

HORIZONTAL MODEL

Frame Model Option Location Dimensions

(mm)

I 30/40 501.8 End 622x394 1 763 511 176 I 50/60/75 501.8 End 622x394 3 763 757 446 III 90/120 501.8 End 495x495 6 693 1056 454 IV 140/150/180 501.8 End 495x495 6 1084 1203 502 V 215/250 501.8 End 622x495 6 1084 1402 502

4.6 Filters (

(only for vertical heater model VCHE)

The cabinet heaters can be equipped with panels with sliding rails for filter elements (option 501.1) EU4 panel filter (1”) can be fitted to this heater (option 502.1). Refer to table 13a/13b for more details. Filters must be inspected on a regular basis as dirty filters can affect the safe working of the unit.

options 501.1 / 502.1) (fig. 12)

For safety reasons it is recommended to wear gloves & glasses when inspecting the filters. Dirty filters should be carefully handled and must be packed in plastic bags – never throw them in the usual dustbin.

Attention : It is forbidden to use filters with standard air intake panels. The pressure drop would become too high resulting into overheating of the heater.

Table 13a : Panel filters for vertical units

Frame Mod Location Qty Dim (mm)

side 0 no filters rear 1 394x622 side 2 394x622 rear 1 394x622 side 2x2 495x394 rear 1 495x622 side 2x2 495x495

rear side 2x2 495x622

rear 2 495x394 front 1 495x622

495x495

495x394

III

50 60 75

90 120

140 150 180

215 250

Table 13b : Panel filters for horizontal units

Frame Mod Location Qty Dim (mm)

III

Qty DX

(mm)

Qty DX

(mm)

right (end) 1 394x622

30 40

top 0 no filters

right 2 394x622

top 1 394x622

right

90 120

top 2 394x495

140

top 2 495x495

150

right (end) 4 495x495

180

top 2 495x622

215

front 1 495x622

250

right (end) 4 495x622

DY (mm)

1 1

394x495 622x495

DZ (mm)

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Figure 12 : Filters Legend

1. standard

2. duct left

3. duct right

4. duct rear

Figure 13a : Overview of the VCHE options

Note : When filters (option 502.1) are required, then the standard air intake panels must be replaced by the panels included

in option 501.1

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Figure 13b : Overview of the HCHE options

1 Standard 2 Ducted inlet end 3 Ducted inlet bottom 4 Ducted inlet top 5 Ducted inlet rear 6 Ducted outlet

Note : When the option 541.4 (ducted inlet end) is required, the standard perforated end panel is not required

4.7 Controls

4.7.1 Vertical heaters are supplied with a pre-

wired control unit, comprising :

1. time control

2. day/night temperature control

3. heat-vent facility Horizontal heaters are supplied with a remote panel. Refer also to § 3.2 ‘Electrical connections’.

5.0 Commissioning

5.1 Only suitably trained personnel or specialist

commissioning engineers should be used to carry out the commissioning of the installed equipment. Ensure that all relevant manuals and user instructions are available before the commissioning engineer proceeds.

Although the heater is test fired at the factory, each installation has a different set of site conditions. Therefore commissioning is very important. Note: The heater should not just be switched on and left to function.

The correct type of combustion analysis equipment, correctly calibrated, should be used at all times.

Pre-Commissioning Checks

Always ensure electrical safety and soundness of the gas installation before

(a) Ensure electrical supply has been

switched off. (b) Ensure the gas supply is switched off. (c) Check that the heater has been

installed on a suitable level base and is

supported correctly with adequate

clearance around the inlet grilles. (d) Fully open louvres on nozzled outlets

or ductwork grilles. (e) Ensure the flue system is adequately

supported with correct termination and

sealing of the joints. (f) Check that all heater panels are

securely fastened and correctly fitted. (g) Locate gas sampling point and ensure

this can be resealed on completion of

commissioning. (h) Check fan and limit stat Fan off 30°C Fan on 60°C Overheat Limit see table 14 Ensure white button is pulled out and

red button has been reset. (i) Where applicable check pulley

alignment and belt tension. (j) Test for earth continuity between the

heater, control panels, burner and gas

pipe work. (k) Turn on the electrical supply and

ventilation manual switch. The fan will

start enabling the direction of the fan

impeller to be verified. (l) Switch off electrical supply. (m) At the heater control panel or remote

panel set the required positions of the

thermostats and time clock.

commencing, then proceed with the following checks:-

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Table 14

VCHE HCHE 30 40 50 60/75 90 120 140 150/180 215 250

5.2 Commissioning Procedure

5.2.1 Do not proceed with this section unless all parts of section 6.1.2 have been successfully completed. In the event that one part does not comply DO NOT PROCEED. Seek assistance from the supplier. Refer to the burner manual, supplied separately, ensuring all setting data is known before commencing. (a) Turn on electrical supply and adjust

panel to ‘heat’ mode.

(b) Check that burner goes through

correct ignition sequence and goes to ’lock-out’.

burner does not go to lockout DO NOT PROCEED until the fault has been correctly identified and repaired.

(d) Switch on the gas supply and

connect a suitable manometer to the test point on the burner prior to the combustion head.

(e) Adjust panel to ‘heat’ mode and reset

the control box from lockout. The burner will start and a head gas pressure will be indicated on the manometer. Check this value is in line with the technical specification in section 2. If not adjust governor on gas valve accordingly. See burner manual accompanying this manual.

(f) Using approved and calibrated

combustion analysis equipment to measure the percentage CO gross flue temperature and ambient temperature.

(g) If the CO

to the technical specification in section 2 adjust the primary air damper, more open for less CO more closed for more CO correct level has been obtained. The CO2 level on the site must be lower than 10% & higher than 8.5%.

(h) Re-check all readings and enter on

the commissioning sheet.

(i) From readings calculate the net

efficiency of the unit. This is not to be less than 84%.

(j) The operation of the fan/limit stat is

checked as follows : *for types 30-75 (direct driven blowers) : by depressing and holding the main fan starter overload button. *for types 90-250 (V-belt driven) : by removing the red wire of the fan stat.

This will stop the main fan without

stopping the burner. After 3 minutes the burner will stop.

Working point

Rt 25°C

!52°C !55°C !40°C !51°C !77°C !84°C !50°C !53°C !52°C !60°C

levels do not correspond

Switching

point 100°C 100°C

90°C

90°C 100°C 100°C

90°C

. CO,

and

, until the

(k) If the burner has not stopped release the

button and allow the main fan to cool down the heater. Then check the following:-

- Fan & limit stat settings are correct.

- The bi-metal strip has not been

damaged.

- The bi-metal strip casing is not in contact with the heat exchanger body.

(l) Adjust temperatures and time periods to

ensure that the burner operates when required by the controls.

(m) Adjust panel to ‘off’ mode’. The burner

will stop. Note the time it takes for the fan to stop, approximately two minutes, thus ensuring the fan side of the fan/limit stat is operating correctly.

(n) Complete the commissioning sheet and

return a copy to the Service Department.

In the event of any problems occurring during the commissioning process, which cannot be properly, rectified please consult the Technical Department of Ambi-Rad Limited.

5.3 Commissioning Outlets

For free standing heaters it is essential to ensure that the nozzled outlet louvres (discharge or plenum louvres) have been adjusted to the required angle of discharge and have been rotated to give the optimum distribution of air throughout the premises. Take care to avoid the short cutting of hot air back into the fan system, i.e. when installed close to a wall, as this can lead to a nuisance overheating condition. Securely fix all nozzle outlets after final adjustments have been made. Outlets for ducted systems are generally adjusted by the ductwork-commissioning engineer. On completion ensure that the static pressure at the top of the heater does not exceed that as quoted in the technical specification in section 2 of this manual This can be achieved by the use of a manometer taking a pressure reading in the plenum of the ductwork. Also check the running current of the main fan motor. If the ductwork pressure is correct then the running current will be as quoted on the data plate. If the static pressure is too low this will be verified by a high running current, which could lead to premature failure of the fan motor. Consequently, the ductwork outlet grilles will have to be closed to increase the static pressure. If the static pressure is too high this will be verified by a low running current of the motor, which could lead to overheating of the heater. The limiter will trip out. Consequently the duct grilles will have to be opened.

5.4 User Instructions

(a) Complete all commissioning data on the

commissioning sheet.

(b) Instruct end user in correct operation and

function of heater and ancillary controls. Particular awareness should be made to start up and shut down of the equipment.

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heater.

(d) Hand over to the end user a copy of

the ‘User Instructions’ complete with a copy of the commissioning sheet.

(e) Advise on the need for regular

servicing of the equipment. In particular that the fan belts will require tensioning after the first 100 hours of running.

6.0 Instructions for Servicing

Servicing should be carried out on a regular basis (minimum once a year) by a suitably qualified engineer or fully trained competent personnel. More frequent servicing may be required dependent upon the environmental circumstances where the air heater is installed. Regular inspection is necessary, especially in dirty areas. Failure to undertake this servicing could lead to premature failure of various components and invalidation of the warranty for individual parts or the heater as a whole.

Only approved spares or replacement parts may be used. Failure to comply with requirement could lead to an unsafe condition within the heater and invalidate any warranty claim.

Reference should also be made to the appropriate burner manual accompanying this manual before the commencement of any work.

For safety reasons no service should commence before isolating both the electrical and gas supplies to the heater and the heater has been allowed to cool down until the heat exchanger is completely cold.

6.1 Frequency

In order to maintain a safe, reliable and efficient operation of the heater we recommend that the following planned service maintenance programme is adopted by the end user. First 100 hours of use:Inspect fan belts and retention if required.

After 3 months:- (a) Visual inspection of outer panels (b) Visual inspection of burner (c) Clean and check position of

(d) Check operation of burner lock-out. (e) Check operation of safety overheat

After 6 months:

(a) Same as after 3 months

(b) Carry out check on all combustion

Annual inspection

(a) Same as after 6 months

(b) Heat exchanger inspection and

ionisation and ignition probes.

and device.

readings.

cleaning. (c) Burner maintenance. (d) Main fan and motor. (e) Pulley and belts. (f) Flue. system (g) Control panel and electrical connections. (h) Gas supply connections.

6.2 Procedures

Heat Exchanger

a) Access to the heat exchanger is made via

the top rear panels, i.e. the panels opposite to the burner. Loosen the 8 hex head screws on the back panel of the heater and remove the panel.. The rear panel and heat shield can now be lifted off The cover plate over the end assembly will now be exposed and can be removed by undoing the brass nuts around the periphery of the cover, thus exposing all the heater exchanger tubes.

Attention For safety reasons it is forbidden to remove the explosion relief panel and its 4 bolts and springs.

Inspect for deposits and clean, using a strong flue brush suitable for 51mm diameter tubes. The loose deposits can now be vacuumed up using an industrial vacuum cleaner. During the inspection of these parts the deposit can also be vacuumed out.

b) Remove the burner to inspect and clean

the combustion chamber.

The whole of the heat exchanger and combustion chamber should be given a good inspection ensuring there are no slots, cracks or severe distortion. If the condition of

either the heat exchanger or the combustion chamber gives cause for concern please notify the end user and the Ambi-Rad UK Limited Service De partme nt immediately.

Replace access cover plate ensuring the new gasket material is used. The outer panels can also be replaced Retighten the hex screws on the top of the heater.

When removing side panels (qty 2 for models 30→120 & qty 4 for the models 140 →250) be aware that the inner skin plate of the side panels has a 90° air deflector being very important for the good operation (efficiency) of the heater. Be careful not to remove or damaging the air deflector. The location of the fixing holes in the side panels ensures an exact position of the air deflector even after removing the side panels.

Burner Maintenance Remove the burner from the heater and carry

out the following procedures:(a) Clean burner head with a stiff brush,

24/30

removing any deposits.

(b) Clean and check positions of

ionisation and ignition probes. (c) Check airways for any obstructions. (d) Check ionisation and ignition probes

for wear or burning. Replace if

necessary. (e) Clean the blades of the burner fan

impeller with a stiff brush to remove

any dust. (f) Check settings of pressure switches. (g) Inspect condition of sequence

controller and ensure the blade

terminals are clean and tight. (h) Fit new gasket to burner and replace

to combustion chamber.

Refer to burner manual for any other specific instruction.

Main fan and motor Remove the access panels to the fan

section and clean by removing any foreign matter and dust with a vacuum cleaner or compressed air. The blades of the fan impeller should also be cleaned free of dust and dirt by means of a stiff brush and a vacuum cleaner.

The following inspection routine should be carried out:-

(a) Check the fan bearing resilient

mounts for signs of distortion or

excessive wear.

Change for new rubber mountings if

required.

(b) Check bearings for any signs of

excessive play in the housing.

Replace if required.

straightness and rusting. Realign,

replace or oil where necessary.

(d) Check the bearings locking collars for

correct fitting and tightness.

(e) Check all screws and nuts holding

the fan and motor for tightness.

(f) For indirect drive systems check that

the locking nut on the adjustment bolt

is securely fastened.

Pulleys and Belts

Using a straight edge check that the fan and motor pulleys are in line and are as close to the bearings as possible. If necessary adjust the position of the pulleys to achieve this. Check the condition of the belts for splits or fraying; if one belt in any set appears to have worn excessively then change the whole set immediately. DO NOT MIX

BELTS OF DIFFERENT AGES OR BATCHES. As the belts stretch at a

different rate according the batch curing number and age, premature failure could occur if they are mixed.

Ensure that the belts are correctly tensioned.

6.3 Re-Commissioning

This can be confirmed when the mid point of the belt is displaced to a maximum of a6mm when a force of 3kg is applied in a plane perpendicular to the belt.

Check the pulleys for signs of wear in the grooves and replace where required, also ensure the keys.

Flue connection

Remove the flue elbow or T-piece with drip pan. Inspect for signs of wear or leakage. Repair or replace where necessary. Using a vacuum cleaner clean out any deposits remaining when the heat exchanger tubes were cleaned. Replace elbow (or T-piece with drip pan) guard & nuts and ensure of the correct installation.

Inspect the flue and terminal for water ingress, if any found reseal where necessary.

Control Panel and Electrical Connections Check all electrical connections to ensure they

are tight and free from corrosion. Any connections that have signs of loose strands that may come into contact with adjacent terminals should be removed and a new connection made. Check the operation and correct functioning of the control panel. Ensure the settings are in accordance with the end users requirement.

Gas Supply Connections Inspect the supply pipes and joints for any

signs of wear and corrosion. Ensure any support brackets are secure and correctly adjusted. Any suspect joints should be checked for soundness in accordance with the appropriate standard.

On completion of the service work the heater and burner are to be re-commissioned in accordance with the manual section 6.2. A record of the service work carried out, any recommendations and commissioning details are to be completed as a report and issued to the end user.

25/30

7.0 Fault Finding

Burner will not start

Burner starts but goes to lockout

No electricity

Check time clock

Check stat setting

Check gas supply

Flame probe failure

Ignition failure

ir pressure switch

failure

Check fused isolator

Check control panel

Check burner

Main gas cock open

ir in gas line

Faulty probe

Bad earth

Wrong position

Faulty control box

Faulty ignition transforme

Faulty electrode

Check settings to manual

26/30

Check switched on

Check fuses

Check fuse

Check supply voltage Check control circuit Check overheat reset

Check lockout

Check flame probe

Check air pressure switch

Check gas pressure switch

Check burner motor

Gas train gas cock open

Gas pilot valve open

Purge gas line

Replace probe

Check earth connections

Check position to manual

Replace control box

Check H.T. lead

Check gap

Burner lights but will not hold on main flame

Gas pressure

Excess combustion air

Combustion air too low

Check flame probe

Check control box Signal

Insufficient air

High inlet Pressure

Fan limit stat

Incorrect gas pressure

Check head pressure as per manual

Check setting of air flap

Check head setting

Position

ir inlets blocked

Outlet nozzles closed

Duct resistance too high

Fan belts slipping

Warm air recirculation

Faulty

Incorrect settings

Mains pressure

Head pressure

Check inlet pressure

Check CO2 level at flue

djust air flap

djust head setting

Check main gas actuator

Remove obstruction

Clean filters

Open louvres on nozzles

Open duct Grilles

djust fan belts

djust nozzle position

Replace

Reset

djust to manual

settin

27/30

8.0 Spare Parts & part numbers

Figure 14

Legend

1. bottom plate

2. bottom brackets

3. direct driven fan unit (frame I & II) belt driven fan unit (frame III, IV & V)

4. electric motor

5. fan baffle plate

6. basic frame skeleton

7. lower corner profile

8. heat exchanger fixation profiles

9. combustion chamber (CC) air deflector

10. fixation plate HE

11. sliding bracket HE

12. over-pressure relief panel

13. heat exchanger (combustion chamber)

14. side air deflectors

15. side inner skins

16. top side panels

17. lower side panels

18. lower control panel

19. top front panel

20. top rear panel

21. front inner skin

22. rear inner skin

23. Honeywell thermostat

24. burner unit

25. control unit

26. control unit cover

27. nozzle panel

28. nozzles

29. plenum assy (optional)

30. vertical louvers (optional)

28/30

Overview of most important part numbers

Description Mfgs ref. PN Application

FC limit stat Honeywell 03 24963 N1157B all sizes

Nicotra DDC 270-270 02 26012 100150 sizes 30/40 Motor & direct driven blower

Nicotra DDC 321-321 02 26012 200300 sizes 50/60/75 Contactor 60 61679 D910M5 sizes 90/120/140/150

180/215

Contactor 60 61679 D1210M size 250

60 61703 02-04 size 90

60 61703 04-06 size 120 Overload

protection

Motortype

Size Motor type

60 61703 05-09 size 140

60 61703 07010 sizes 150/180/215

60 61703 09-13 size 250

Direct Driven Blower Belt Driven Blower

30/40 50/60/75 90 120 140 150/180 215 250

0.55 kW 1ph

0.75 kW 1 ph

1.5 kW 3 ph

2.2 kW 3 ph

3.0 kW 3 ph

4.0 kW 3 ph

5.5 kW 3 ph

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9.0 Reference Standards

EN1020

Non Domestic Gas Fired Forced Convection Air Heaters for Space Heating.

BSEN292

Parts 1 & 2 : Safety of Machinery.

BSEN 60335

Part 1: Safety of Electrical Appliances.

BSEN 60204

Part 1: Safety of Machinery Electrical.

BSEN 676

Automatic forced draught burners for gaseous fuels

BSEN 55014

Electromagnetic Compatibility

BSEN 50165

Safety of Electrical Equipment

BS 5991

Indirect Gas Fired Heaters less than 2MW.

BS 5440

Part 1: Specification/Installation of Flues.

Part2: Ventilation Requirements of Gas Appliances.

BS 6320

Installation of Gas Fired Heaters.

BS 5854

Code of Practice – Flues/Flue Structures.

BS 715

Metal Flue Pipes & Fittings.

UP/1

Installation of Gas Appliances.

UP/2

Installation of Gas Appliances.

BS 6891

Installation of Pipe Work.

ISO 7/1

Specification for Metric Pipe Threads.

ISO 228/1

Pipe Threads Seals and Couplings.

Subject to modifications

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Ambirad VCHE 50, VCHE 40, VCHE 30, VCHE 60, VCHE 75 Installation Servicing & Operating Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual