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Ambirad VCHE Series Installation Servicing & Operating Instructions

Floor standing gas fired heaters
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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
1/30

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Summary of Contents for Ambirad VCHE Series

  • Page 1 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.

  • Page 2: Table Of Contents

    INDEX Introduction General Information Quality Products CE Approved European Directives Product Information Warning Technical Specifications Data Sheets Dimensions Mechanical/Electrical Services Gas Connection Electrical Connection Ventilation Requirement Installation Location Heater Clearances Flue Nozzled Heaters Ducted Heaters Filters Controls Commissioning Pre-Commissioning Checks Commissioning Procedure Commissioning Outlets User Instructions...

  • Page 3: Introduction

    Introduction General 1.1.8 Caution! Ensure that the environment in 1.1.1 Before installation check that the appliance which the air heater is to be installed will not as described on the packaging label is in create a hazard, i.e. where excessive accordance with the correct type and model (volatile) dust, flammable or corrosive specified on the data plate and complies...

  • Page 4: Product Information

    BS EN 292 - Part 2: 1.4.2 All cabinet heaters are fitted with a pre- Safety of Machinery - Basic Concepts, tested and set forced draught burner. A General Principles for Design Technical sequential control box is fitted to each Principles and Specifications.

  • Page 5: Technical Specifications

    Technical Specifications 2.1 Natural Gas – Single Stage (table 1a) VCHE/HCHE Model FRAME size 36,6 49,1 62,2 76,6 91,1 108,6 145,3 169,7 185,3 215,4 262,0 298,8 Heat input (gross) Btu/h 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...
  • Page 6 2.1 Natural Gas – Single Stage (table 1b) VCHE/HCHE Model FRAME size m³/hr 2500 2500 5180 5180 5180 7140 8750 10500 11500 12800 14100 17330 Nominal air flow ft³/min 1488 1488 3083 3083 3083 4250 5208 6250 6845 7619 8393 10315 Available outlet pressure (ducted outlet)

  • Page 7: Dimensions

    2.2 Dimensions Vertical heater range Figure 1a : unit with discharge nozzle Front view Figure 1b : unit with discharge plenum Front view 7/30...
  • Page 8 Figure 1d Figure 1c – Side view air inlet air inlet Figure 1f : burner mounting flange Figure 1e 8/30...
  • Page 9 Horizontal heater range Figure 2a – Side view Figure 2b – Front view Remark : The fixation eyes (4x dia 22.5) may only be used to put the unit into horizontal position after delivery. It is strictly forbidden to use the fixation eyes for suspending the unit. 9/30...
  • Page 10 Dimensions (mm) (table 2) VCHE/HCHE 60/75 150/180 Frame size A1/A2 1158 1158 1305 1305 1504 1504 C1/C2/C3 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...

  • Page 11: Mechanical/Electrical Services

    Figure 4 : Mechanical/Electrical Services 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.
  • Page 12 3.3.3 Where it is known that the air change rate is 3.3.6 Normally cabinet air heaters, which are used less than 0.5/h or where the building volume in the free, blowing mode, i.e. without is less than 4.7m per kW of heat input discharge air ducting, are installed within the ventilation grilles must be provided at low room to be heated.

  • Page 13: Installation

    Heater clearances Installation 4.2.1 The following minimum clearances must be Location observed when installing the heater to enable easy access to the heater: 4.1.1 Ensure the structural elements of the building are adequate to carry the weight of the appliance and Minimum clearance around a vertical heater its ancillary components, i.e.
  • Page 14 Flue Attention : ensure that the connection of 4.3.1 Ambi-Rad cabinet heaters must connected to a flue system venting the the flue to the cabinet heater is products of combustion directly to outdoors. completely air tight or sealed. Flue systems must installed 4.3.3...

  • Page 15: Nozzled Heaters

    Discharge plenum (option 203.3) (figure 8) assy The discharge plenum is designed to be 30/40 installed on top of the VCHE series. When ordered with this option, the unit is delivered 50/60/75 without top plate so that the discharge 90/120 plenum can easily be pushed in the top outlet of the unit.
  • Page 16 Figure 8 : Nozzle plenum Figure 9 : Vertical louvres 16/30...

  • Page 17: Ducted Heaters

    Ducted Heaters Remark : fig. 10 shows ducted air inlet fixation – same fixation method applies for ducted air outlet 4.5.1 The Ambi-Rad ducted cabinet heater is designed to be used with discharge ducting. Figure 10 A positive seal should be made between any ducting and the air heater.
  • Page 18 4.5.4 Ducted air outlet on VCHE/HCHE units (on top of the heater for vertical model or at the left side of the heater for horizontal (std. option 206.1) models). Respect the dimensions for the In this situation, the unit is delivered duct air outlet and for the flange as without nozzle boxes (option 203) or outlet discharge plenum (option 203.3).
  • Page 19 Table 11b (refer to fig. 10) HORIZONTAL MODELS HCHE Duct flange dimensions Duct channel dimensions (mm) (mm) Frame Model Option Height (1) Height (1) Depth (2) Width Depth (2) Width 541.5 (top) 541.7 (bottom) 30/40 541.6 (rear) 541.4 (end) 541.5 (top) 541.7 (bottom) 50/60/75 541.6 (rear)
  • Page 20 Table 12a VERTICAL MODEL Frame Model Option Location Dimensions (mm) (mm) (mm) (mm) 30/40 501.7 Rear 622x394 50/60/75 501.7 Rear 622x394 90/120 501.7 Left 495x495 1056 140/150/180 501.7 Left 495x495 1203 215/250 501.7 left 622x495 1402 Table 12b HORIZONTAL MODEL Frame Model Option...
  • Page 21 Figure 12 : Filters Legend standard duct left duct right 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 21/30...

  • Page 22: Commissioning

    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 Controls Ensure electrical supply has been switched off.

  • Page 23: Commissioning Procedure

    Table 14 If the burner has not stopped release the button and allow the main fan to cool VCHE Working point Switching HCHE Rt 25°C point down the heater. Then check the !52°C 100°C following:- !55°C 100°C Fan & limit stat settings are correct. !40°C 90°C The bi-metal strip has not been...

  • Page 24: Instructions For Servicing

    Instruct on the safety features of the cleaning. heater. Burner maintenance. Hand over to the end user a copy of Main fan and motor. the ‘User Instructions’ complete with Pulley and belts. a copy of the commissioning sheet. Flue. system Advise on the need for regular Control panel and electrical connections.

  • Page 25: Re-Commissioning

    Clean check positions This can be confirmed when the mid point of ionisation and ignition probes. the belt is displaced to a maximum of a6mm Check airways for any obstructions. when a force of 3kg is applied in a plane Check ionisation and ignition probes perpendicular to the belt.

  • Page 26: Fault Finding

    Fault Finding No electricity Check fused isolator Check switched on Check time clock Check fuses Burner will not Check control panel Check fuse start Check control circuit Check overheat reset Check supply voltage Check stat setting Check burner Check lockout Check flame probe Check air pressure switch...
  • Page 27 Check head pressure as Gas pressure Check inlet pressure per manual Excess combustion air Check setting of air flap Check CO level at flue Burner lights but will not hold Combustion air too low Check head setting Adjust air flap on main flame Check flame probe Position...

  • Page 28: Spare Parts

    8.0 Spare Parts & part numbers Figure 14 side inner skins Legend top side panels bottom plate lower side panels bottom brackets lower control panel direct driven unit (frame & top front panel belt driven fan unit (frame III, IV & V) top rear panel electric motor front inner skin...
  • Page 29 Overview of most important part numbers Description Mfgs ref. 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...

  • Page 30: Reference Standards

    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...

This manual is also suitable for:

Hche seriesVche 40Vche 30Vche 50Vche 60Vche 75 ... Show all

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