Ambirad VISION VT Series Installation And Operation Manual

Radiant tube heaters

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MBI

NSTALLATION

INDEX

Introduction and Document Index

Installation Requirements -------------------------------------------------- 1

Assembly Instructions ------------------------------------------------------- 2

Commissioning Instructions ----------------------------------------------- 3

Servicing Instructions -------------------------------------------------------- 4

Spare Parts -------------------------------------------------------------------- 5

Fault Finding Guide ---------------------------------------------------------- 6

Replacing Parts --------------------------------------------------------------- 7

User and Operating Instructions ------------------------------------------ 8

WARNINGS

Nortek Global HVAC (UK) Ltd equipment must be installed and maintained in accordance with

the relevant provisions of the Gas Safety (Installations and Use) Regulations 1998 for gas ﬁred

products. Due account should also be taken of any obligations arising from the Health and Safe-

ty at Works Act 1974 or relevant codes of practice. In addition the installation must be carried

out in accordance with the current IEE wiring regulations (BS 7671), BS 6896 (Industrial & Com-

mercial) and any other relevant British Standards and Codes of Practice by a qualiﬁed installer.

All external wiring MUST comply with the current IEE wiring regulations.

Nortek Global HVAC (UK) Limited, Fens Pool Avenue, Brierley Hill, West Midlands, DY5 1QA

ISION

ADIANT

AND

VT R

UBE

EATERS

PERATING

ANGE

ANUAL

Section

Part No. 700025

Doc No. 700025 Page of 32

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Summary of Contents for Ambirad VISION VT Series

Page 1: Table Of Contents
® VT R VT R ISION ISION ANGE ANGE ADIANT ADIANT EATERS EATERS NSTALLATION NSTALLATION PERATING PERATING ANUAL ANUAL INDEX Section Introduction and Document Index Installation Requirements -------------------------------------------------- 1 Assembly Instructions ------------------------------------------------------- 2 Commissioning Instructions ----------------------------------------------- 3 Servicing Instructions -------------------------------------------------------- 4 Spare Parts -------------------------------------------------------------------- 5 Fault Finding Guide ---------------------------------------------------------- 6 Replacing Parts --------------------------------------------------------------- 7...
Page 2 Introduction. Welcome to the new range of high efficiency and attention is required to ensure that working AmbiRad Vision Hi/Low radiant tube heaters. at height regulations are adhered to at the mounting heights specified. Local regulations may vary in the country of use...
Page 3: Installation Requirements
Eyebolt Chain Eyebolt Size angle length position length position VTUT = AmbiRad Vision U Tube heater with 30-35° 10 links 7 links painted forced two stage burner, stainless steel 45° 13 links 9 links reflector & end caps. VTLF = AmbiRad Vision Single Linear heater with painted forced two stage burner, stainless Figure 1.a.
Page 4 Figure 1.b. Recommended Methods of Heater Suspension. Doc No. 700025 Page 4 of 32...
Page 5 Clearance to Combustibles. The minimum clearances to combustible materials are given in the tables below. These minimum distances MUST be adhered to at all times. Figure 2.a Diagram illustrating the clearance to combustibles VTUT / VTAUT / VTCUT Above Reflector Above Burner / Heater Outlet To the Sides 1000...
Page 6 Figure 2.b Diagram illustrating the clearance to combustibles G/G1 VTLF / VTALF / VTCLF Above Reflector Above Burner To the Sides Below Tubes 1700 Horizontally from Heater Outlet 1200 (UNFLUED) End Wall Above Heater Outlet (FLUED) Above Heater Outlet (UNFLUED) Doc No.
Page 7 AmbiRad and must only be carried out by a qualified/competent gas Take care when making a gas connection engineer. Figure 3. Correct Installation of Flexible Gas Connection fig.c...
Page 8 The electrical connection to the heater is made by means of a four pin plug-in We recommend use of AmbiRad approved power connector. Live, neutral earth & high fire controls. Please refer to control manual for connections should be made via a flexible siting and installation details.
Page 9 Figure 5. Internal Burner Wiring Diagram. 230V AC FAN HIGH FIRE 230V AC TERMINAL TERMINALS SUPPLY EMC FILTER Power ON (red) Low Fire (amber) High Fire Relay High Fire (amber) COIL Gas Control Pressure Switch Doc No. 700025 Page 9 of 32...
Page 10 1.7 Electrical Connections cont`d Note: AmbiRad Smartcom MZ controller shown. If an AmbiRad controller is NOT used, then any third party controller must capable VT models: disconnecting all outputs to the burner in the event These models are supplied with a loose four of a fault.
Page 11 Figure 5b. VTC Models. VTC models (carwash): These models require a four core flying lead to be connected to the controller as shown in the diagram below. SmartCom Mulitizone 1/L 2/N LIVE S/R0S/R1 D0 D1 BLACK BULB SENSOR NEUT NEUTRAL CUSTOMER LIVE 230V AC...
Page 12 Mechanical Ventilation Mechanical ventilation must be installed to meet a minimum of 0.5 air changes per hour using AmbiRad tube heaters can be operated as appropriately sized fans and interlocked with the flued or unflued appliances in accordance with heaters.
Page 13 If the flue passes through a wall, ceiling, or 1.9.4 Flue Connection roof made from combustible material then it has to be sleeved so as to provide a minimum pipe lengths flue carrying of a 50mm void between the exterior of the flue components are joined together by a twist lock, and the internal wall of the sleeve.
Page 14 1.10 Technical Details. Table 3 - General No of Injectors Gas Connection ½ in BSP Internal thread Flue Nominal Bore mm (in) 125 (5) Fan Type 202490 Fan Motor Details 230 volt 1 phase 50Hz Fan Rating (A) Table 4 - Natural Gas (G20) Injector Injector Heat Input kW...
Page 15 Figure 6. Option 1. Flue Attachment U Tube Burners Figure 7. Flue/Terminal Attachment Linear Burners Products of Combustion For unflued installation, fit standard terminal supplied using grub screw provided Flued Installation Flange fitted on VTC models only. Flexible hose for ducted air should be fitted here to prevent water...
Page 16 Figure 7a. Fit standard terminal supplied using grub screw Standard end terminal (unflued)201866-SUB provided Tube to Flue Coupler 75mm 201813 Flue Bend 202662 Two Stage Burner Figure 7b. Products of Combustion 127mm (5ins) Twin Wall Flue System Tube to Flue Coupler 75mm 201813 Flue Bend 202662 Two Stage Burner Tube to Flue Adaptor 75mm 201881...
Page 17: Assembly Instructions
2. Assembly Instructions. PLEASE READ this section prior to Please ensure that all packaging is assembly to familiarise yourself with the disposed of in a safe environmentally components and tools you require at the friendly way. various stages of assembly. Carefully open the packaging and check the contents against the For your own safety we recommend the parts and check list.
Page 18 2.2.4 Couplers. Slide the next reflector through the brackets and overlap the existing reflector until the locating slots line up with the same bracket fixing points For VTLF tube heaters only For joining Secure overlapped reflectors to bracket using radiant tubes, locate and position tube couplers M6 nuts, bolts and flat mud washers.
Page 19 End Cap 2 x ‘Z’ clips On VTUT Flued installations, fit flue bend to heater tube with coupler supplied. Fit adapter to flue bend then fit twin wall flue to adapter. Do 2.2.8 Burner Assembly. not silicone seal! On VTUT only, slide the burner assembly onto the RIGHT HAND TUBE when viewed from above, ensuring it is fully engaged.
Page 20 Figure 7. Vision Heater Assembly: Models VTUT/VTAUT/VTCUT U tube 25kW. Doc No. 700025 Page 20 of 32...
Page 21 Figure 8. Vision Heater Assembly: Models VTLF/VTALF/VTCLF 25kW 8m - 75mm (3ins) Nom Dia. Doc No. 700025 Page 21 of 32...
Page 22 Figure 9. Vision Heater Assembly: Models VTLF/VTALF/VTCLF 25kW 10.5m - 75mm (3ins) Nom Dia. Doc No. 700025 Page 22 of 32...
Page 23: Commissioning Instructions
3. Commissioning Instructions. These appliances should be commissioned by a qualified engineer. Tools Required. to complete the tasks laid out in this manual. Suitable alternative tools may be used. The following tools & equipment are advisable Large Adjustable Small Flat Leather Pozidrive Spanners or 22, 26 &...
Page 24: Servicing Instructions
4. Servicing Instructions. These appliances should be serviced annually by a competent person to ensure safe and efficient operation. In exceptional dusty or polluted conditions more frequent servicing may be required. The manufacturer offers a maintenance service. Details available on request Tools Required.
Page 25 4.3 Burner Removal Step 1 Isolate power and gas supplies. Step 2 Disconnect the external power/control connections as shown (VTC only). Disconnect external 4 way power/control plug from burner housing (VT only) Step 6 Remove the burner and position the burner in a safe area to prevent the burner or components attached to the burner from falling to the ground.
Page 26 When replacing the gas injector ensure Step 4 Remove fan orifice plate. approved thread sealant is used. Step 5 Inspect the impeller and remove any Step 3 Reconnect ignition leads and silicone dust with a soft brush. tube to test nipple. Refit gasket and support casting.
Page 27 Step 4 Refit the electrode assembly and Step 5 The turbulators should be cleaned with ensure the connections are secure to prevent a soft brush. incorrect sparking of the spark electrode. Step 5 Check the positions and spark gap as shown in diagram below.
Page 28: Spare Parts
5. Spare Parts. Required Spares Note Any spare part components that are not approved by AmbiRad could invalidate In order to aid troubleshooting and servicing we the approval of the appliance and validity of the recommend that the components shown in this warranty.
Page 29: Fault Finding Guide
1. Burner controller If the heater still fails to valve open? 2. Replace gas valve operate normally, please contact the AmbiRad service department. Check: 1. Burner inlet pressure 2. Burner nozzle pressure 3. Check live & neutral polarity 4. Check presence of good earth...
Page 30: Replacing Parts
7. Replacing Parts. 7.1 Burner Controller Replacement to wiring harness. Step 1 Remove the four screws securing the Step 7 Close access door and test product . lower burner access lid. Step 2 Remove the two external screws 7.2 Air Pressure Switch Replacement attaching the controller to the burner housing and remove complete with bracket.
Page 31 Step 4 Remove spade terminal connections. Step 4 Detach the four screws securing the front of the gas valve. The air pressure switch can now be removed. Step 5 Remove the four screws holding the rear burner plate in position. Step 5 Fit the new air pressure switch ensuring Step 6 Remove the rear plate.
Page 32: User And Operating Instructions
7. If lockout occurs three times consecutively switch off and isolate the gas and The manufacturer offers a maintenance electricity supplies. service. Details are available on request. Contact the AmbiRad Service department. For Service requirements, please contact AmbiRad. 8.2. To Switch Off Heater 1.

This manual is also suitable for:

Vision vtut 25 Vision vtaut 25 Vision vtcut 25 Vision vtlf 25 Vision vtalf 25 Vision vtclf 25