Powrmatic LNVx15, LNVx20, LNVx40, LNVx35, LNVx45 User, Installation & Servicing Instructions

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LNVx

User, Installation & Servicing Manual

Issue 1.0 September 2018

Doc Ref: M104 Issue 1.0 Sep 2018

ErP COMPLIANT

SEPTEMBER 2018

Page 2

page no. 2 of 48

LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Important: This certificate

must be kept with the appliance

Failure to provide a copy of the commissioning sheet invalidates the heater warranty

----------------------------------------------------

Powrmatic Ltd, Hort Bridge, Ilminster, Somerset, TA19 9PS Tel: 01460 53535 Fax: 01460 52341 Web: www.powrmatic.co.uk e-mail: warranty@powrmatic.co.uk

This is to certify that this heater is guaranteed for two years parts and one year labour from the date of original commissioning. The heater must be commissioned within 4 weeks of installation.

To make a claim

In the first instance you must contact your appliance supplier, or installer and provide:-

1. The appliance type and serial number.

2. The original commissioning documentation. As much detail as possible on the fault.

3. Your supplier, or installer, will then contact Powrmatic to make a guarantee claim on your behalf.

Conditions of Guarantee

1. The heater must have been installed by a competent qualified installer, and in accordance with the manufacturer’s instructions, building regulations and local regulations.

2. The heater has been professionally commissioned, within 4 weeks of installation, and a copy of the commissioning sheet returned to Powrmatic.

3. The heater has been maintained on a yearly basis by a competent and qualified servicing company.

4. The heater has been used in accordance with the manufacturer’s instructions.

5. The correct specification fuel has been used.

6. No unauthorised repairs of modifications have been made. Powrmatic ‘General Conditions of Sales’ have been observed.

7. Except for the obligation of Powrmatic Ltd to perform warranty repairs during the guarantee period, Powrmatic will not be liable in respect of any claim for direct or indirect consequential losses, including loss of profits or increased cost arising from loss of use of the heater, or any event arising there from.

Exclusions

Consumables such as gaskets, ignition electrodes, flame rectification electrodes, drive belts, fusible links, control batteries are all excluded from guarantee.

Certificate Of Guarantee

Certificate of Guarantee

Page 3

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Title Section Contents Page

User Instructions 4

Pre Installation

1.1 Introduction 5 Duties 6 Dimensions 7 Options & Accessories 12

1.2 Technical data 14

1.3 General Requirements 15

Installation

2.1 Fitting the unit 19

2.2 Flue/Combustion Air Duct System 22

2.3 General Identification of Electrical Items 24

2.4 Electrical Cable Installation 25

2.5 Wiring Diagrams 28

2.6 Commissioning and Testing 30

2.7 Servicing 34

Additional Documents

3.1 Fault Finding Flow Chart 38

3.2 Short List of Parts 41

3.3 Gas Conversion 44

Appendices Information required for ecodesign (ErP) Directive 2009/125 46

Users, Installation and Servicing Instructions

CONTENTS

Contents

Page 4

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

D) Description of Operation

Important: The heater must NOT be controlled by switching ON and OFF the main electrical supply to it.

1) Standard Units

The ignition sequence commences each time the external controls e.g. time clock, room thermostat, controller etc. call for heat. The internal exhaust fan will run and, when sufficient combustion airflow is proved by the air pressure switch, the ignition spark will be generated, the main gas valve opens and the burners will light on HIGH FIRE for the first 30 seconds irrespective of the requirements of the external control. The green ‘ON’ indicator will be illuminated. The heater fan will automatically start 30 seconds after the burners light. After the first 30 seconds, the heat output will then be controlled either to high fire or low fire depending on the requirements of the space being heated and the external controls fitted. When the external controls are satisfied the burners will be turned off and 2½ minutes later the heater fan will automatically stop. If the burners fail to light the control box will make another four attempts at ignition before going into burner lockout. The amber ‘Lockout’ indicator/reset switch will be illuminated.

2) Modulating Units

When the burners are alight, the heat output will be controlled to any point between high and low fire; depending on the requirements of the space being heated and the external controls fitted.

3) Summer / Winter Modes

Certain types of external controls will provide for two modes of operation i.e: Summer: The heater fan alone will run at the dictate of the external controls to provide air movement. Winter: The heater will operate normally.

4) Overheat Thermostat

This operates if high temperatures within the heater are detected, the burners are turned off and a Red indicator lamp on the front panel is illuminated. LNVx15 - 70 units have a single thermostat located inside the heater. LNVx35 & 90 - 140 units have an additional thermostat on the side of the unit at the opposite end to the controls (either thermostat can go to limit and shut off the burners). The fault condition must be identified and rectified and the thermostat manually reset via the red high limit reset switch. When the unit has cooled, identify the limit stat, remove the black cap and press the reset button. The red indicator lamp will go out and the unit is operational again.

If the heater has not been left operational proceed as follows.

A) Checks before operating the Air Heater

The following preliminary checks should be made before lighting the heater(s)

a) Ensure that the ELECTRICAL supply to the heater is switched OFF. b) Check that any warm air delivery outlets are open. c) Check that the thermostat is set. d) Check that the clock control is set to an ON period. e) Check that any other controls are calling for heat.

B) Operating the Air Heater

1. Switch on the electrical supply at the isolator

2. If the Red Limit indicator lamp is illuminated, identify the limit stat, remove the black cap and press the reset button.

3. The startup sequence will commence. After a short delay the burners will light and the green ‘ON’ indicator on the front of the heater will be illuminated.

4. If the burners fail to light the control box will automatically restart the ignition sequence. If after 5 attempts at ignition the burners have still failed to light the control box will go to lockout and the Amber lockout lamp on the front of the heater (or on the low level remote reset, or MC200/MC300 if fitted) will be illuminated. To restart the ignition sequence depress the reset button on the low level reset for about 1-2 seconds.

WARNING: If it is not possible to light the heater after several attempts, contact the installer or local service company.

C) To Shut Down the Air Heater

1) For Short Periods:

Turn the room thermostat to the OFF, or set to 'Summer Mode'.

2) For Long Periods:

Complete step 1 above. Wait for 5 minutes and then turn OFF the electrical supply at the isolator.

User Instructions

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Note: The limit thermostat(s) can only be reset once the unit has cooled down. Unless the cause of the fault condition is readily obvious, for example a power cut whilst the heater was

operating, a service engineer should be contacted.

E) Maintenance

To maintain efficient, reliable and safe operation of the heater it must serviced annually by a qualified person.

F) IMPORTANT

Free access must be maintained to and around the heater for servicing purposes and the air supply to the heater must not be restricted in any way. Combustible materials must not be stored adjacent to the heater.

If at any time a gas leak is suspected, turn OFF the gas supply at the meter and contact the local gas undertaking immediately.

All Powrmatic heaters use gas and electricity to power them, they may also contain moving parts such as pulleys and belts. It would be hazardous to tamper with or attempt to service unless you are a competent person in the field of Gas and Electrical work.

If you have any safety questions reference the servicing and installation of any of our heaters please do not hesitate to contact our head office for expert advice. Your safety is paramount to us.

Gas Safety (Installation & Use) (Amendment) Regulations 2018

It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the

current issue of the above regulations. Failure to install appliances correctly can lead to prosecution. It is in your own interests and that of safety to ensure that the law is complied with.

* Gas Safe Registered Engineer

The LNVx range are highly efficient, gas fired, fanned circulation air heaters that cover heat outputs of 15kW to 140kW, have a closed combustion circuit and are supplied complete with a flue system.

LNVx heaters are certified for use on Natural Gas, Group H - G20, and Propane - G31 only. Appliance Categories are Cat II2H3P (GB, IE). All LNVx heaters are CE certified and conform to all the European directives stated in section 1.3.1

LNVx heaters are designed to be suspended from suitable roof points or alternatively to be mounted on purpose designed brackets and are intended primarily for heating commercial or industrial premises. All variants are for internal use only.

LNVx heaters feature a closed combustion circuit and have an internal exhaust fan, mounted downstream of the heat exchanger, to evacuate the products of combustion and draw in air for combustion. The air heater must be connected to a flue system that is approved by Powrmatic Ltd.

LNVx heaters may be used where the atmosphere inside the premises could be contaminated e.g. Dust, oil mist etc. but the heaters are not airtight and therefore may not be used in areas classified as hazardous as defined in

BS 5345: Part 2 or areas subjected to significant negative pressures due to extract systems.

LNVx F, LNVx Duo and LNVx V heaters have an axial fan assembly fitted to circulate the air being heated through the formed tube heat exchanger. LNVx CCF units are supplied with a centrifugal fan and LNVx D units for use with ducted systems where the air moving fan is by others or a centrifugal fan section is used adjacent to or remote from the heater. LNVx DH units are for use in air handling units.

Heaters are fitted as standard with inshot burners, a fully automatic control for ignition, flame sensing, gas supply control and safety functions, an internal exhaust fan, main air fan (F and CCF models), and fan/limit thermostat.

Options include High/Low or Modulating burner controls, inlet duct connection, outlet duct connection, 30°, 45° head, 90° outlet bend, vertical/horizontal outlet louvre assembly and a full range of modular duct components.

IMPORTANT Service and Maintenance Engineers shall

ensure that replacement items are fitted,

adjusted and set in accordance with the data and detail set out in these instructions. If in doubt consult Powrmatic Technical Department.

1.1 Introduction

User Instructions

Page 6

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Model 15 20 25 35 40 45 50 60 70 90 120 140

Output (nominal)

High Fire (max)

kW 14.5 19.0 24.0 34.0 37.5 44.0 50.5 60.0 70.5 90.0 118.5 137.0

Low Fire (min)

kW 8.6 12.7 16.3 23.8 25.5 29.8 33.9 40.8 47.8 65.3 83.5 93.3

Input (nett CV)

High Fire (max)

kW 15.5 20.5 26.0 36.5 40.5 47.0 54.5 65.0 76.5 97.5 127.0 146.0

Low Fire (min) kW 9.53 14.07 18.16 26.08 28.17 32.46 37.41 45.07 52.91 71.65 90.83 101.16

Airflow Volume

LNVx F/CCF/V m

/s 0.42 0.56 0.78 1.11 1.18 1.51 1.51 1.83 1.94 2.81 3.56 3.75

LNVx D

Min m

/s 0.42 0.56 0.78 1.11 1.18 1.51 1.51 1.83 1.94 2.81 3.56 3.75

Max m

/s 0.46 0.62 0.86 1.22 1.30 1.67 1.67 2.02 2.14 3.09 3.91 4.13

Airflow

Throw LNVx F m 10.0 14.0 20.0 28.0 30.0 35.0 35.0 38.0

42.0 44.0 45.0 45.0

Fan Static

LNVx CCF Pa 220 320 220 N/A 150 250 250 250 250 180 290 250

Electrics

Supply

Standard V/ph/Hz 230/1/50

Optional* V/ph/Hz 400/3/50 *on Centrifugal Units Only. 3Ph units shown in brackets ()

LNVx F Run amp 0.40 0.45 0.52 1.14 0.85 1.53 1.57 2.30 2.20 3.06 4.35 4.45

LNVx CCF

Start amp 5.0 8.5 13.3 N/A 18.0 26.3 26.3 29(16.5) 38(18) 31.0 40(14.9) 44(16.8)

Run amp 2.0 3.1 4.2 N/A 5.8 7.6 7.6 10(4.8) 11(5.3) 12.8 17(4.6) 20(4.9)

Fuel

Connection BSP/Rc ¾"

Nominal Inlet Pressure

Nat Gas mbar 20.0

LPG mbar 37.0

Consumption

Nat Gas m

/h 1.64 2.17 2.75 3.86 4.29 4.97 5.77 6.88 8.10 10.32 13.44 15.45

LPG m

/h 0.63 0.83 1.06 1.52 1.66 1.90 2.20 2.65 3.16 4.01 5.10 5.90

Mounting Height

LNVx F/Duo Crossflow

Min m 2.5 3.0

Max m 3.0 5.0

LNVx V Downflow

Min m

4.0 5.0 6.0

Max m 6.0 7.0 8.0 10.0 12.0

Overall Dims

LNVx F

Height mm 430 500 570 532 720 684 684 760 912 810 975 1140

Width mm 997 997 997 1325 997 1325 1325 1325 1325 1950 1950 1950

Depth mm 800 869 819 918 839 938 938 915 915 938 915 915

Install Clearance

LNVx F

Top mm 200

LH Side mm 200

RH Side mm 1000

Rear mm 400

Flue

Diameter mm Ø 80 80 80 100 100 100 100 130 130 130 130 130

Max Length

Flue Only m 12

Room Sealed m 6

Combustion Air Spigot mm Ø 80 80 80 100 100 100 100 130 130 130 130 130

Noise Levels

LNVx F dB(A) 48 47 47 50 58 59 59 60 60 63 64 64

LNVx CCF dB(A) 55 55 54 N/A 60 60 61 62 62 66

67 67

Nett Weight

LNVx F kg 59.5 73.0 76.5 84.0 103 122 122 135 149 202 238 286

LNVx CCF kg 71.0 83.6 86.4 N /A 122 143 143 170 213 329 364 430

Model 15 20 25 35 40 45 50 60 70 90 120 140

Notes:

Fuel Consumption and input figures ba sed upon nett calorific values as follows: Natural Gas (G20) nett CV 34.02 MJ/m

- Propane (G31) nett CV 88.00

MJ/m

• Heaters have efficiency levels which meet with the minimum heater efficiency requirements of UK Part L Building Regulations.

• LNVx heaters comply with the seasonal efficiency and NOx

limits requirements of the Ecodesign regulation (EU) 2015/1188, Directive 2009/125/EC – Lot 21 Tier 1

• Standard heaters configured as High/Low. Optional modulation

available.

• Air handling data is assessed at room ambient conditions

• Throw figures provide the distance to the point where the terminal velocity degrades to 0.25m/s

• Dimensions, weights and clearance data in the table above refer to LNVx F units only - for data on all other models refer to the dimensions page and/or the installation instructions.

• Noise levels are applicable to standard LNVx F and LNVx V models and are measured 5m from appliance in a free field.

• Motor kW, run and start amps apply to standard electrical supply as stated. For optional data contact sales office.

• Optional 3 phase direct drive centrifugal blowers shown in italics within brackets().

• Connection of combustion air duct is not required for ‘flue only’ applications.

• It is the responsibility of the installing contractor to ensure that ductwork is correctly sized and balanced when installing LNVx Centrifugal units.

Technical Specification

LNVx

Page 7

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Dimensions

LNVx F- Freeblowing

Model

15 20 25 35 40 45 50 60 70 90 120 140

A mm 997 997 997 1325 997 1325 1325 1325 1325 1950 1950 1950

B mm 700 730 730 819 730 819 819 819 819 819 819 819

C mm 430 500 570 532 720 684 684 760 912 810 975 1140

DØ mm 80 80 80 100 100 100 100 130 130 130 130 130

E mm 248 268 268 357 268 357 357 357 357 337.5 337.5 337.5

F mm 198.5 248 318 225 446 320 325 325 476 457 622 787

G mm 120 120 120 142 142 142 142 220 220 220 220 220

H mm 317 317 317 347 317 347 347 347 347 347 347 347

J mm 450 450 450 700 450 700

700 700 700 662.5 662.5 662.5

K mm 230 230 230 278 230 278 278 278 278 278 278 278

L mm 800 869 819 918 839 938 938 915 915 938 915 915

M mm 217.5 217.5 217.5 247.5 217.5 247.5 251 237 237 247 247 247

N mm 117 117 117 145.5 117 145.5 145.5 145.5 145.5 90 90 90

P mm 175 172 245 220 285 221.5 221.5 298 373.5 412 413 481

Q mm 86 125 75 85 95 105 105 82 82 105 82 82

14 B



J CRS

J CRS J CRS

SUSPENSION POINTS M10

GAS ENTRY POINT

ELEC ENTRY

Page 8

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Dimensions

LNVx Duo- Axial Fan Bi-directional Units

Model

90 120 140

A mm 1950 1950 1950

B mm 819 819 819

C mm 810 975 1140

DØ mm 130 130 130

E mm 337.5 337.5 337.5

F mm 457 622 787

G mm 220 220 220

H mm 347 347 347

J mm 662.5 662.5 662.5

K mm 278 278 278

L mm 1150 1150 1150

M mm 247 247 247

N mm 90 90 90

P mm 412 413 481

Q mm 105 82 82

ELEC ENTRY

GAS ENTRY POINT

J CRSJ CRS

M10 SUSPENSION POINTS

ØD

Page 9

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Dimensions

LNVx V - Axial Fan Downflow

Model

15 20 25 35 40 45 50 60 70 90 120 140

A mm 997 997 997 1325 997 1325 1325 1325 1325 1950 1950 1950

B mm 700 730 730 819 730 819 819 819 819 819 819 819

C mm 430 500 570 532 720 684 684 760 912 810 975 1140

DØ mm 80 80 80 100 100 100 100 130 130 130 130 130

E mm 248 268 268 357 268 357 357 357 357 337.5 337.5 337.5

F mm 198.5 248 318 225 446 320 325 325 476 457 622 787

G mm 120 120 120 142 142 142 142 220 220 220 220 220

H mm 289.5 289.5 289.5 319.5 289.5 319.5 319.5 319.5 319.5 319.5 319.5 319.5

J mm 260 260 260 385 260 385

385 385 385 460 460 460

K mm 202.5 202.5 202.5 250.5 202.5 250.5 250.5 250.5 250.5 250.5 250.5 250.5

L mm 820 885 835 934 855 954 954 929 929 954 929 929

M mm 217.5 217.5 217.5 247.5 217.5 247.5 251 237 237 247 247 247

N mm 117 117 117 145.5 117 145.5 145.5 145.5 145.5 90 90 90

P mm 175 172 245 220 285 221.5 221.5 298 373.5 412 413 481



J CRS J CRS

DROP ROD

SUSPENSION POINTS M10

ELEC ENTRY

GAS ENTRY POINT

J CRS J CRS J CRS

ELEC ENTRY

GAS ENTRY POINT

DROP ROD

SUSPENSION POINTS M10

Page 10

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Dimensions

LNVx CCF- Centrifugal Close Coupled Fan Units

Model

15 20 25 35 40 45 50 60 70 90 120 140

A mm 997 997 997 N/A 997 1325 1325 1325 1325 1950 1950 1950

B mm 700 730 730 N /A 730 819 819 819 819 819 819 819

C mm 430 500 570 N/A 720 684 684 760 912 810 975 1140

DØ mm 80 80 80 N/A 100 100 100 130 130 130 130 130

E mm 248 268 268 N/A 268 357 357 357 357 337.5 337.5 337.5

F mm 198.5 248 318 N/A 446 320 325 325 476 457 622 787

G mm 120 120 120 N /A 142 142 142 220 220 220 220 220

H mm 317 317 317 N/A 317 347 347 347 347 347 347 347

J mm 450 450 450 N/A 450 700

700 700 700 662.5 662.5 662.5

K mm 230 230 230 N/A 230 278 278 278 278 278 278 278

L mm 1130 1205 1205 N/A 1275 1450 1450 1450 1450 1365 1450 1450

M mm 217.5 217.5 217.5 N/A 217.5 247.5 251 237 237 247 247 247

N mm 117 117 117 N/A 117 145.5 145.5 145.5 145.5 90 90 90

P mm 175 172 245 285 285 221.5 221.5 298 373.5 412 413 481

S mm 630 630 630 630 630 927 927 927 927 1552 1552 1552

T mm 376 446 516 666 666 631 631 707 858 757 922 1087



ELEC ENTRY

GAS ENTRY POINT

J CRS

SUSPENSION POINTS M10

K H

J CRS J CRS

SUSPENSION POINTS M10

35.0

Page 11

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Dimensions

LNVx D Ducted Heat Module (No fan)

Model

15 20 25 40 45 50 60 70 90 120 140

A mm 997 997 997 997 1325 1325 1325 1325 1950 1950 1950

B mm 700 730 730 730 819 819 819 819 819 819 819

C mm 430 500 570 720 684 684 760 912 810 975 1140

DØ mm 80 80 80 100 100 100 130 130 130 130 130

E mm 248 268 268 268 357 357 357 357 337.5 337.5 337.5

F mm 198.5 248 318 446 320 325 325 476 457 622 787

G mm 120 120 120 142 142 142 220 220 220 220 220

H mm 317 317 317 317 347 347 347 347 347 347 347

J mm 450 450 450 450 700 700 700 700 662.5 662.5 662.5

K mm 230 230 230

230 278 278 278 278 278 278 278

L mm 804 834 834 834 924 924 924 924 924 924 924

M mm 217.5 217.5 217.5 217.5 247.5 251 237 237 247 247 247

N mm 117 117 117 117 145.5 145.5 145.5 145.5 90 90 90

P mm 175 172 245 285 221.5 221.5 298 373.5 412 413 481

S mm 630 630 630 630 927 927 927 927 1552 1552 1552

T mm 376 446 516 666 631 631 707 858 757 922 1087

GAS ENTRY POINT

ELEC ENTRY

J CRS

J CRS J CRS



SUSPENSION POINTS M10 SUSPENSION POINTS M10

35.035.0

Page 12

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Fan Plenum Box - (LNVx CCF Models Only)

Mixing Box - (LNVx CCF Models Only)

Model Part Number

Dimensions (mm)

A B C D E F

LNVx 15/20/25 LNVx15/MB 1160 730 696 600 498 570

LNVx 40 LNVx40/MB 1160 880 696 600 648 720

LNVx 45/50 LNVx50/MB 1285 845 994 900 613 685

LNVx 60 LNVx60/MB 1285 920 994 900 688 760

LNVx 70 LNVx70/MB 1285 1070 994 900 838 910

LNVx 90 LNVx90/MB 1285 970 1620 1526 738 810

LNVx 120 LNVx120/MB 1285 1135 1620 1526 903 975

LNVx 140 LNVx140/MB 1455 1300 1620 1526 1068 1140

Model Part Number

Dimensions (mm)

A B C D E

LNVx 15/20/25 LNVx15/FS 750 696 570 480 622

LNVx 40 LNVx40/FS 750 696 720 630 622

LNVx 45/50 LNVx50/FS 850 994 685 595 920

LNVx 60 LNVx60/FS 850 994 760 670 920

LNVx 70 LNVx70/FS 850 994 910 820 920

LNVx 90 LNVx90/FS 850 1620 810 720 1546

LNVx 120 LNVx120/FS 850 1620 975 885 1546

LNVx 140 LNVx140/FS 850 1620 1140 1050 1546

Accessories

30° Downflow Head - (LNVx F Models Only)

90° Downflow Head - (LNVx CCF Models Only)

Heater Options

Model Part Number

Dimensions (mm)

A B C D E

LNVx 15 LNVx15-30DH 376 305 630 280 494

LNVx 20 LNVx20-30DH 446 340 630 350 494

LNVx 25 LNVx25-30DH 516 375 630 420 494

LNVx 35 LNVx35-30DH 478 340 927 350 660

LNVx 40 LNVx40-30DH 666 450 630 570 494

LNVx 45/50 LNVx50-30DH 631 415 927 500 660

LNVx 60 LNVx60-30DH 707 415 927 500 660

LNVx 70 LNVx70-30DH 858 480 927 630 660

LNVx 90 LNVx90-30DH 757 450 757 570 660

LNVx 120 LNVx120-30DH 922 520 757 710 660

LNVx 140 LNVx140-30DH 1087 590 757 850 660

Model Part Number

Dimensions (mm)

A B C D E

LNVx 15 LNVx15-90DH 376 430 630 280 494

LNVx 20 LNVx20-90DH 446 500 630 350 494

LNVx 25 LNVx25-90DH 516 570 630 420 494

LNVx 40 LNVx40-90DH 666 720 630 570 494

LNVx 45/50 LNVx50-90DH 631 650 927 500 660

LNVx 60 LNVx60-90DH 707 650 927 500 660

LNVx 75 LNVx70-90DH 858 780 927 630 660

LNVx 90 LNVx90-90DH 757 720 757 570 660

LNVx 120 LNVx120-90DH 922 860 757 710 660

LNVx 140 LNVx140-90DH 1087 1000 757 850 660

Page 13

page no. 13 of 48

LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Swivel Wall Bracket - ( LNVx F Models Only)

Cantilever Wall Bracket - (LNVx F Models Only)

Notes:

- Dimensions for the swivel and cantilever brackets remain the same for all LNVx models

- Swivel Brackets can not be used with double units

Model Part Number

LNVx 15 - 70 LNVx15-70WB

LNVx 90 - 140 LNVx90-140WB

Model Part Number

LNVx 15 - 70 LNVx15-70SWB

LNVx 90 - 140 N/A

Vertical Louvres (For Use On All Models)

Model Part Number

Dimensions (mm)

A B C

LNVx 15 LNVx15-VL 630 376 65

LNVx 20 LNVx20-VL 630 446 65

LNVx 25 LNVx25-VL 630 516 65

LNVx 35 LNVx35-VL 927 478 65

LNVx 40 LNVx40-VL 630 666 65

LNVx 45/50 LNVx50-VL 927 631 65

LNVx 60 LNVx60-VL 927 707 65

LNVx 70 LNVx70-VL 927 858 65

LNVx 90 LNVx90-VL 757 757 65

LNVx 120 LNVx120-VL 757 922 65

LNVx 140 LNVx140-VL 757 1087 65

Filter Box - (LNVx CCF Models Only)

A D

Model Part Number

Dimensions (mm)

A B C D E

LNVx 15/20/25 LNVx15-FB 696 570 120 626 500

LNVx 40 LNVx40-FB 696 720 120 626 650

LNVx 45/50 LNVx45-FB 994 685 120 924 615

LNVx 60 LNVx60-FB 994 760 120 924 690

LNVx 70 LNVx70-FB 994 910 120 924 840

LNVx 90 LNVx90-FB 1620 810 120 1550 740

LNVx 120 LNVx120-FB 1620 975 120 1550 905

LNVx 140 LNVx140-FB 1620 1140 120 1550 1070

Accessories

Page 14

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

(All variants)

High Fire Low Fire

Injectors

Burner

Pressure

Gas Rate

Burner

Pressure

Gas Rate

MODEL No. Size (mm) Marked mbar m³/h mbar m³/h

LNVx15 3 1.94 500 13 .1 1.64 5.0 1.01

LNVx20 4 1.94 500 12.3 2 .17 6.0 1.49

LNVx25 5 1.94 500 13.5 2.75 6.5 1.92

LNVx35 5 2.26 580 13.2 3.86 5.8 2.76

LNVx40 8 1.94 500 12.3 4.29 6.0 2.98

LNVx45 10 2.54 750 7. 4 4.97 3.5 3.43

LNVx50 10 2.54 750 9.5 5.77 4.5 3.96

LNVx60 8 2.54 750 10.6 6.88 5.2 4.77

LNVx70 10 2.54 750 9.4 8.1 0 4.6 5.60

LNVx90 8 3.5 1500 6.0 10.32 3.0 7.5 8

LNVx120 10 3.5 1500 6.7 13.44 3.3 9.61

LNVx140 12 3.5 1500 6.2 15.45 2.9 10.7

Injector Sizes & Burner Pressures - Natural Gas - Group H - G20 Net CV (Hi = 34.02MJ/m³)

Nominal Inlet Pressure = 20mbar

Minimum Inlet Pressure = 17.5mbar

(All variants)

High Fire Low Fire

Injectors

Burner

Pressure

Gas Rate

Burner

Pressure

Gas Rate

MODEL No. Size (mm) Marked mbar m³/h mbar m³/h

LNVx15 3 1.36 240 21.3 0.6 8.0 0.39

LNVx20 4 1.36 240 19.8 0.8 9.5 0.57

LNVx25 5 1.36 240 21.3 1.1 10.2 0.74

LNVx35 5 1.6 160 22.5 1.5 11.5 1.1

LNVx40 8 1.36 240 19.5 1.7 9.6 1.17

LNVx45 10 1.6 160 18.4 1.9 8.8 1.31

LNVx50 10 1.6 160 24.2 2.3 12.2 1.6

LNVx60 8 1.6 160 25.4 2.6 12.3 1.85

LNVx70 10 1.6 160 22.9 3.2 11.3 2.15

LNVx90 8 2.26 580 13.5 4.0 7. 2 2.91

LNVx120 10 2.26 580 14.6 5 .1 7.2 3.69

LNVx140 12 2.26 580 13.4 5.9 6.4 4.11

Injector Sizes & Burner Pressures - Propane G31 Net CV (Hi = 88.00MJ/m³)

Nominal Inlet Pressure = 37mbar

Minimum Inlet Pressure = 25mbar

1.2 Technical Data

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1.3.1. Related Documents

All LNVx heaters comply with the following European Directives:

Energy Related Product Directive: 2009/125/EC* Gas Appliance Directive: 2009/142/EC Electromagnetic Compatibility Directive: 2004/108/EC Low Voltage Directive: 2006/95/EC Machinery Directive: 2006/42/EC

Air heater(s) must be installed in accordance with BS6230 and BS5440 plus any relevant requirements of local and national building codes. * where appropriate.

1.3.2 Location

Powrmatic LNVx units are designed to operate within an ambient temperature range of -10 to 25°C.

LNVx heaters can be installed in several ways: i) suspended from ‘drop rods’ via purpose designed M10 suspension fixing points on the heater, ii) attached to our optional wall support brackets or iii) positioned on a level, non-combustible base. In all cases, it is important that all supporting structures have been assessed with regard to the relevant weight loadings.

Consideration should be given to flue routes and points of exit, gas, electrical and control connections. Consideration should also be given to the throw characteristics of the heater, issues of public access and siting of environmental control stations and/or remote temperature sensors where the position needs to be representative of the zone temperature to which they refer.

Where the location of the air heater is such that it might suffer external mechanical damage e.g. from overhead cranes, fork lift trucks, it must be suitably protected.

Heaters should not be installed in hazardous areas or areas where there is a foreseeable risk of flammable or corrosion inducing particles, gases or vapours being drawn into the combustion air or main fan circuits.

Areas where special consideration or advice may be required could include but is not limited to –

• Where de-greasing solvents are present, even in minute concentrations

• Where paint spraying is carried out

• Where styrenes or other laminating products are used

• Where airborne silicone is present

• Where petrol engine vehicles are stored or maintained

• Where dust is present (i.e. wood working or joinery shops)

• Where high levels of extract persist.

Installation in such areas may be possible under specific conditions. Please consult our Technical Department for further information.

1.3.2.1 Sizing of the heater

The heater should be correctly sized for the area that it is heating, Full calculations need to be preformed to ensure the correct KW output heater is fitted (CIBSE elemental methodology can be used, or the Powrmatic Technical Department can provide guidelines).

1.3.3 Electrical Supply

Wiring external to the air heater must be installed in accordance with the I.E.E. Regulations for Electrical Installations and any local regulations which apply. All standard heaters are supplied by 230V - 1ph, 50Hz. The method of connection to the main electricity supply must:-

- facilitate the complete electrical isolation of the unit(s) via a suitable fused isolator (see section 2.4.5 for ratings)

- be in a readily accessible position adjacent to the unit(s)

- serve only the unit(s)

- have a contact separation of at least 3mm in all poles. See the accompanying wiring diagram for the heater electrical connections

LNVx CCF and fan/silencer units can also be supplied for 400V 3N, 50Hz.

1.3.4 Gas Supply

A servicing valve and union to facilitate servicing must be fitted to the gas inlet pipe work of the heater. The gas supply must be completed in solid pipe work and be adequately supported.

Heaters suspended by drop rods, straps or chains must have a flexible connection as the final link between the gas supply pipe work and the heater. Sufficient slack must be left in the connection to take account of normal movement of the heater.

WARNING: When completing the final gas connection to the heater do not place undue strain on the gas pipe work of the heater.

1.3.4.1 Service Pipes

The local gas undertaking should be consulted at the installation planning stage in order to establish the availability of an adequate supply of gas to suit the

1.3 General Requirements

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

building requirements. An existing service pipe must not be used without prior consultation with the local gas undertaking.

1.3.4.2 Meters

An existing meter should be checked, preferably by the gas undertaking, to ensure that the meter is adequate to deal with the total rate of gas supply required by all connected equipment.

1.3.4.3. Installation Pipes

Installation pipes should be fitted in accordance with IGE/ UP/2. Pipe work from the meter to the air heater must be of adequate size.

Do not use pipes of a smaller size than the inlet gas connection of the heater.

The complete installation must be tested for soundness as described in the above Code.

1.3.5 Flue System

Only flue systems supplied through Powrmatic Ltd may be used with LNVx units. Several configurations of flue and combustion air ducts are available.

The flue must terminate in a freely exposed position and be sited to prevent the products of combustion entering any opening in a building in such concentration as to be prejudicial to health or a nuisance.

Type B22 Installation.

Type C12 or C32 Installation.

1.3.6 Ventilation Requirements

Type B flued installations.

Where LNVx heaters are installed within the heated

space (ie not in a plant room or an enclosure) and having

a building design air change rate of greater than 0.5/h, additional provision for ventilation is not required.

If the building design air change rate is less than 0.5/h, additional provision for natural or mechanical ventilation

is required. These being:

• Natural Ventilation:

Grilles having a free area of at least 2cm² per kW of rated heat input shall be provided at low level i.e. below the level of the heater flue connection.

• Mechanical Ventilation:

Must ensure that the space air change rate is at least

0.5/h, must be of the ‘input’ type and interlocked to

ensure the heaters cannot work if the input system is not working.

Type B flued installations.

Where LNVx heaters are installed in a plant room or

an enclosure (i.e. not within the heated space) having

combustion air drawn directly from the room and connected to a flue that evacuates the products of combustion directly from the room additional provision for natural or mechanical ventilation is required.

Option 2: Combustion Air Entry

(ﬁtted with inlet gri lle)

Op tion 1: Combustion Air Entry

(ﬁtted with inlet gri lle)

Combustion Air Socket

1.3 General Requirements

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Typ e B22 Installation (these refer to section 2.2 of

these instructions)

Air vents shall be permanently open. In all cases figures are per heater installed. For multi heater installations the appropriate

values for each heater must be added together

Typ e C

12 or C32 Installation (these refer to section 2.2

of these instructions)

Air vents shall be permanently open. Figures are for heaters in plant rooms or

enclosures ONLY In all cases figures are per heater installed. For multi heater installations the appropriate

values for each heater must be added together.

LNVx

Input kW

In the

heated

space

In a plant room,

ventilation to

outside

In an enclosure,

ventilation to

outside

In the

heated

space

Ventilation is to a

room or internal

space

Ventilation is to a

outside air

Low level

grille.

Free area

cm²

Low level

grille.

Free area

cm²

High level

grille.

Free area

cm²

Low level

grille.

Free area

cm²

High level

grille.

Free area

cm²

Free area grille cm²

Low level

grille.

Free area

cm²

High level

grille.

Free area

cm²

Low level

grille.

Free area

cm²

High level

grille.

Free area

cm²

15 15.5 31.0 62.0 31.0 155.0 77. 5 n/a 155.0 155.0 77.5 7 7. 5

20 20.5 41. 0 82.0 41.0 205.0 102.5 n/a 205.0 205.0 102.5 102.5

25 26.0 52.0 104.0 52.0 260.0 130.0 n/a 260.0 260.0 130.0 130.0

35 36.5 73.0 146.0 73.0 365.0 182.5 n/a 365.0

365.0 182.5 182.5

40 40.5 81.0 162.0 81.0 405.0 202.5 n/a 405.0 405.0 202.5 202.5

45 47.0 94.0 188.0 94.0 470.0 235.0 n/a 470.0 470.0 235.0 235.0

50 54.5 109.0 218.0 109.0 545.0 272.5 n/a 545.0 545.0 272.5 272.5

60 65.0 130.0 260.0 130.0 650.0 325.0 n/a 650.0 650.0 325.0 325.0

70 76.5 153.0 306.0 153.0 765.0 382.5 n/a 765.0 765.0 382.5 382.5

90 97.5 195.0 390.0 195.0 975.0 487. 5 n/a 975.0 975.0 4 8 7. 5 4 8 7.5

120 127.0 254.0 508.0 254.0 1270.0 635.0 n/a 1270.0 1270.0 635.0 635.0

140 146.0 292.0 584.0 292.0 1460.0 730.0 n/a 1460.0 1460.0 730.0 730.0

These being:

• Natural Ventilation:

There must be permanent air vents communicating directly with the outside air, at high level and at low level.

Plant Rooms

Low level (inlet) 4cm²/kw of total rated net heat input High level (outlet) 2cm²/kw of total rated net heat input

Enclosures

Low level (inlet) 10cm²/kw of total rated net heat input High level (outlet) 5cm²/kw of total rated net heat input

• Mechanical Ventilation:

The minimum flow rate of ventilation shall be 4.14m³/h per kilowatt of total rated heat input.

Type C flued installations.

Where LNVx heaters are Installed within the heated

space (i.e. not in a plant room or an enclosure) having

combustion air ducted to the appliance and combustion

products ducted to the outside air, NO additional

provision for the supply of either combustion air or for combustion products dilution or additional provision for the supply of air is necessary.

Type C flued installations.

Where LNVx heaters are installed in a plant room or

an enclosure (i.e. not within the heated space) having

combustion air ducted to the appliance and combustion products ducted to the outside, air vents shall be

provided and be permanently open.

To room or internal space

Low level (inlet) 10cm²/kw of total rated net heat input High level (outlet) 10cm²/kw of total rated net heat input

Direct to outside air

Low level (inlet) 5cm²/kw of total rated net heat input High level (outlet) 5cm²/kw of total rated net heat input.

1.3 General Requirements

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

1.3.7 Air Distribution System

Where LNVx F units are required to cover a large floor area, and in buildings with high roof or ceiling heights Calecon thermal economiser units may be considered to ensure even heat distribution and minimise stratification. Care should be taken to avoid impeding the air throw with racking, partitions, plant or machinery etc. Various outlet configurations are available as optional extras to modify the air throw pattern to suit particular site conditions.

For LNVx CCF units, the duct work must comply to current regulations and be correctly calculated to match the particular heaters resistance and air flow.

A full and unobstructed return air path to the air heater(s) must be provided.

If the air heater(s) are installed in a plant room, the return air intake(s) and the warm air outlet(s) from the heater(s) must be fully ducted, into and out of the plant room to avoid interference with the operation of the heater.

The openings in the structure of the plant room/enclosure through which the ducting passes must be fire stopped.

Care must be taken to ensure that return-air intakes are kept clear of sources of smells and fumes, and where there is any possibility of pollution of the air by dust, shavings etc., precautions must be taken to prevent contamination.

If necessary, suitable barrier rails should be provided to prevent any combustible material being placed within 900mm of the outlets.

Model Air Volume m³/h Maximum Duct Resistance (Pa)

LNVx15CCF 1500 220

LNVx20CCF 2020 320

LNVx25CCF 2808 220

LNVx40CCF 4250 150

LNVx45CCF 5450 250

LNVx50CCF 5450 250

LNVx60CCF 6600 250

LNVx70CCF 9200 250

LNVx90CCF 10100 180

LNVx120CCF 128 0 0 250

LNVx140CCF 13500 250

1.3.7.1 Ducting Requirements

LNVxCCF Heater Unit

It is recommended that you have a

minimum of 2000mm from the heater

outlet prior to any restriction

Airflow

1.3 General Requirements

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R/H Side Views

LNVx CCF

LNVx Duo

Front View

R/H Side Views

2.1.1 Fitting space requirement

LNVx F / CCF

Front View

LNVx V LNVx Duo

LNVx F

2.1 Fitting the Unit

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Distance from outside of heater to closest obstacle Distance

A RHS Clearance (when viewed at front of heater) mm 1000

B LHS Clearance (when viewed at front of heater) mm 200

C Top of heater mm 200

D Rear of heater (dependent on flue system) mm 400

Recommended mounting heights (floor level to underside of unit)

LNVx15F-30F / Duo M 2.5-3.0

LNVx35F-140F / Duo M 3.0-5.0

LNVx D M N/A

LNVx15V M 3.0

LNVx20-30V M 4.0-6.0

LNVx40V M 4.0-7.0

LNVx45-70V M 5.0-8.0

LNVx90V M 6.0-10.0

LN Vx120/14 0V M 6.0-12.0

For multi air heater installations the following minimum distances between units must be observed

Between units, side to side/back to back M 3.0

Note: All models must not be installed at a height of less than 2.5m to the base of the unit.

Note: For LNVx D units the normal air flow direction is from right to left when viewing the heater from the burner/controls end with the fan unit upstream.

Note: The minimum clearances must be observed for installation and servicing.

Warning: Any combustible material adjacent to the air heater and the flue system must be so placed or shielded as to ensure that its temperature does not exceed 65 °C.

Warning: When LNVx modular components are used in conjunction with the heater each component must be individually supported.

Note: The access door to the controls section may be removed to improve access. Open the door to 90°, remove the earth cable at the

bottom, and then lift the door vertically upwards to disengage the hinge plates. Refit in reverse order. Ensure that the earth cable is refitted.

2.1.2 Suspending the heater

The air heater may be installed either: a) suspended from suitable vertical drop rods (recommended maximum length is 1.8m). b) on specifically designed cantilever brackets from a non combustible wall. c) on a level noncombustible surface. The surface must not extend past the front edge of LNVx F heaters.

The method of installation must be capable of adequately supporting the weight of the unit (See section 1.2) and any ancillary equipment. Before installing the heater the existing structure must be inspected to ensure it is suitable. All supports should be protected against the effects of rust or corrosion.

Raise the heater up to the point of installation using suitable and safe means and connect to the means of suspension.

Note: Each heater is provided with additional central suspension points (suspension points running along the front and back are for

permanent connection, suspension points running left to right in the centre are for temporary support) that can be used to provide temporary support, using suitable means, whilst the unit is being installed. Under no circumstances must these points be used as the final means of suspension.

2.1 Fitting the Unit

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Temporary supports

Threaded drop rods must have lock nuts fitted that are tightened down onto the 10mm fixings in the heater.

All thread rod

Locknuts

Suspension

point

Recommended maximum drop rod length is 1.8m.

Permanent

suspension

supports

If reducing noise levels is important the heater should be insulated from the structure by installing it on suitable anti-vibration mountings. In all such cases and when the heater is suspended it is essential that all gas, duct, and

electrical connections to the heater are made with flexible connections to maintain continuity of connection.

2.1.3 Air Distribution System

2.1.3.1 General

LNVx Duo discharges air in two directions, significantly enhancing the effective coverage of the heater and leading to a more even warmth distribution especially within modern well insulated buildings. This in-turn offers a potential saving on both capital and installation costs.

LNVx D and LNVx CCF models are designed for use with duct work to more precisely define the point of air delivery, and /or provide ducted return air or ducted fresh air inlet. All ducting must be independently supported of the air heater. Joints and seams of supply ducts and joints between LNVx ancillary components must be securely fastened and made airtight using appropriate sealants or sealing strips. If required the duct work should be insulated to reduce heat loss.

2.1.3.2 Noise Reduction

Ducting should be connected to the heater spigots via an airtight flexible coupling of noncombustible material.

Before fitting the coupling it must be ensured that a minimum clearance of approximately 15mm will be maintained between the ends of the ducting and the heater spigots.

Sound attenuators may be fitted in inlet and outlet ducts to reduce airborne fan noise. If sound attenuators are used then these must be factored into the total static resistance of the ductwork. Materials used in outlet sound attenuators must be capable of withstanding 100°C air temperature without any deterioration.

2.1.4 Room Thermostat Siting

The room thermostat should be fitted at a point which will be generally representative of the heated area as far as temperature is concerned. Draughty areas, areas subjected to direct heat e.g. from the sun, and areas where the air movement is relatively stagnant e.g. in recesses, should be avoided. The thermostat should be mounted approximately 1.5m from the floor.

Any room thermostat, frost thermostat, time clock etc. must be suitable for switching 230V, 5A and must be of the 'snap action' type to minimise contact bounce.

For electrical connections of external controls see section

2.5 or the accompanying wiring diagram.

2.1 Fitting the Unit

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The minimum distance between surfaces of the flue pipe and any surfaces made from combustible materials is 300mm. If it is necessary for the flue pipe to pass through a structure made from combustible materials a metal sleeve must be used so that the minimum clearance of 300mm is maintained.

The flue and combustion air ducts supplied with the heater are capable of withstanding their own weight over the allowable flue lengths. Wall bands and bracing brackets, or equivalent, must be used to provide lateral stability and should be used at centres not exceeding 2.5 metres.

All models are supplied as standard with a rear flue outlet and the flue outlet and combustion air sockets temporarily fitted.

2.2.1 Conversion to Top Flue Outlet

1. Remove the two blanking plates from the flue / combustion air openings at the top of the unit.

2. Remove the four screws from the exhaust fan outlet flange.

3. Remove the screws securing the fan mounting box to the exhaust header plate.

4. Remove fan assembly and rotate the assembly 90° anticlockwise.

5 Refit the fan assembly to the exhaust header plate ensuring that the gasket is not damaged, if necessary replace or make good with silicon sealant.

6. Secure the exhaust fan outlet flange to the underside of the top panel and fit the blanking plates to the rear panel.

2.2.2. Fitting Flue/Combustion Air Sockets

1. Apply a bead of silicon sealant around the face of the flange on the exhaust fan outlet tube that can be seen from the outside of the heater. Place the flue socket on the outside of the heater to mate with this flange and clamp the two flanges together, on either side of the heater panel using the screws provided. Ensure that the silicon sealant has sealed between the two flanges.

2. Apply silicon sealant and refit blanking plates as required to seal unused panel holes.

2.2.3. General Requirements

See Figures 1a to 2b for the different types of flue installation. In all cases the flue outlet socket must be connected via the provided flue system to outside air.

The maximum permitted length of flue system is 6m, or 12m if the flue outlet only is used. If an offset is required two sets of 45° bends should be used each set being equivalent to 0.5m of flue length. 90° bends may be used but each set will be equivalent to 1.0m of flue length.

All outer joints must be finished with the provided locking bands. A smear of silicon grease to the inside of sockets will assist in fitting components together. All flue and combustion air ducts must be supported independently of the air heater. The flue or flue/combustion air terminal must not be installed so as to be less than:

- 300mm below an opening e.g. window, air brick etc.

- 200mm below eaves or gutter.

- 300mm from an internal or external corner.

- 1200mm from a surface facing the terminal.

- 1500mm vertically from another terminal on the same wall.

- 300mm horizontally from another terminal on the same wall.

- 2000mm from ground level.

2.2.4. Installation of Flue System

Note: A terminal guard, as supplied by

Powrmatic Ltd, must be fitted to horizontal

flue terminals.

Notes for all systems.

i) Final overall length of adjustable

disconnection piece must be between 360 -

415m m . ii) 45° offsets may be used if required. Each set is equivalent to 0.5m of flue length. iii) Where LNVx heaters are used in clean environments it is permissible to take the combustion air directly from the heated space.

2.2.4.1. Horizontal System - Rear Outlet

Note: If the outlet is required to the side of the

unit 90° bends may be fitted directly onto the

inlet/outlet spigots on the heater.

1. Locate the position of the flue terminal, allowing for a slight gradient running down from the heater to the terminal of 2° - 3° and cut a hole to suit.

2. Fit the flue terminal, securing via the wall plate and

2.2 Flue/Combustion Air Duct System

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weather with silicon sealant or similar.

3. Fit the twin to concentric adapter to the terminal section and extend the flue and combustion air ducts to the heater using straight lengths.

Fit an adjustable length prior to the unit, to facilitate flue disconnection for servicing. Extend the adjustable lengths to make the final connection to the appropriate heater inlet/outlet spigots.

4. Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home. Secure concentric lengths with the locking bands provided.

Fig 1a. Individual system - Type C12 horizontal

Flue Socket

Adjustable Lengths

Lengths

Terminal

Combustion Air Socket

Single to Twin Adaptor

Maximum 6m, Minimum 980mm

2.2.4.2. Vertical System - Top Outlet

1. Locate the position of the flue terminal cut a hole in the roof to suit.

2. Fit the flashing and the flue terminal so that the lower edge of the outer case is over the top of the flashing. Weather with silicon sealant or similar. Fit a condensate drain length into the flue socket on the heater and an equivalent straight length onto the combustion air socket.

3. Fit the twin to concentric adapter to the terminal section and then extend down to the heater using straight lengths.

Fit adjustable lengths as the final connection pieces, to facilitate flue disconnection for servicing. Extend the adjustable lengths to make the final connection but do not exceed the maximum extended length so as to maintain joint integrity.

Extend the drainage off take of the condensate drainage length to a suitable gully or drain.

4. Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home. Secure concentric lengths with the locking bands provided.

Fig 1b . Individual system - Type C32 vertical

Terminal

Single to Twin Adaptor

Lengths

Adjustable Lengths

Combustion Air Socket

Flue Socket

Flashing

Condsensate Drain Lengths

Maximum 6m, Minimum 80 Ø=1480 mm; 10 0Ø=1560 mm; 130Ø =1560mm

2.2.4.3. Internal Combustion Air System

1. Complete the run of flue sections from the terminal spigot to the flue outlet socket of the heater generally as described in 2.2.4.1. and 2.2.4.2., ensuring that the internal silicon sealing rings are in place.

2. It is recommended that both air inlets are utilized and that both are fitted with the mesh inlet plates supplied. In addition a 90° bend should be fitted to the rear inlet, the inlet opening of the bend facing to the side of the heater i.e. away from the main air fan.

Fig 2a. Exhaust only system -Type B22 horizontal

Flue Socket

Adjustable Lengths

Lengths

Terminal

Option 1: Combustion Air Entr y

(ﬁtted with inlet g rille)

Maximum 12m

Option 2: Combustion Air Entry

(ﬁtted with inlet g rille)

2.2 Flue/Combustion Air Duct System

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Fig 2b. Exhaust only system - Type B22 vertical

Terminal

Flashing

Lengths

Adjustable Lengths

Flue Socket

Condsensate Drain Lengths

Maximum 12m, Minimu m 80Ø=14 80mm; 100Ø=1560mm; 130Ø=1560mm

Op tion 1: Combustion Air Entry

(ﬁtted with inlet g rille)

Option 2: Combustion Air Entry

(ﬁtted with inlet g rille)

2.2.5. Condense Length

We recommend installing an inline condense flue drain when flued vertically, due to the lower flue gas temperatures experienced when the heater is operating at low firing rates.

Other relevant factors include installations where significant length of the flue is used which may cause chilling, or if heater may be exposed to high winds and heavy rain, which may ingress the flue.

We would always recommend fitting the inline condense drain even if the drain point is capped, should the drain be required in the future. Any clarification can be achieved by consulting with Powrmatic.

The condensate drainage pipe should be run in a standard drain pipe material and have a fall of at least 2.5° in every 50m. Copper or copper based alloy shall not be used for condensate drains. See BS 6896.

Condensate drainage pipe should run and terminate internally to a soil and vent stack or a waste pipe. Alternatively, the condensate can be discharged into the rainwater system or a purpose-made soakway.

GAS VALVE PRESSURE SWITCH

FAN COMMAND MODULE

PACTROL

BOARD

EXHAUST FAN

INTERFACE BOARD (Modulation only)

ENGINEERS SWITCH

MAINS

INPUT

CONTRACTORS

TERMINALS

BURNER LOCKOUT RESET

HIGH LIMIT RESET

HIGH LIMIT INDICATION

BURNER ON INDICATION

SECOND HIGH LIMIT RESET. 90-140 only

2.3 General Identification of Electrical Items

2.2 Flue/Combustion Air Duct System

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2.4.1. Electrical Connections

Warning: THIS APPLIANCE MUST BE EARTHED.

Warning: Lockout reset is by a switched Neutral to the controls in the heater.

Warning: Wiring external to the unit must be carried out by an appropriately qualified

person to current IEE regulations for Electrical Installations and any local regulations which apply.

The local electrical supply must be run to a point adjacent to the heater and be suitably terminated to provide an isolation point that will prevent remote activation of the unit during servicing. Wiring should be completed in flexible conduit.

The local electrical supply conditions must be compatible with the electrical data given on the appliance data plate.

Heaters are for use with 230V, 1N, 50Hz supplies.

The method of connection to the main electricity supply must:-

- facilitate the complete electrical isolation of the heater(s) via a suitable fused isolator that will prevent remote activation of the heater during servicing (see section 2.4.5 for ratings).

- be in a readily accessible position adjacent to the heater(s).

- serve only the heater(s).

- have a contact separation of at least 3mm in all poles. See section 2.5 or the accompanying wiring diagram for

the heater electrical connections.

All units, (with the exception of units supplied with a centrifugal fan/silencer duct section) are fully prewired and only require final connections for the incoming mains supply and completion of the control circuit (230V).

Reference must be made to Section 2.4.5 to ascertain the electrical loading of the unit(s) being installed so that cables of adequate cross-sectional area are used for the electrical installation. The length of the conductors between the cord anchorage and the terminals must be such that the current carrying conductors become taut before the earth conductor if the cable or cord slips out of the cord anchorage. All external controls must be of an approved type.

Models supplied with a centrifugal fan/silencer duct section require wiring to be completed between the heater and fan. Refer to supplied wiring diagram.

Warning: LNVx D models supplied less fan must be electrically interlocked to the air

movement system so that this is started in the same manner as the air heater fan would be. Refer to supplied wiring diagram.

Note: To achieve maximum system efficiency it is recommended that LNVx units are controlled by an MC200 or MC300 unit.

Simple room thermostat and thermostat/time clock control systems will not provide optimum system efficiency and fuel savings.

Wiring drawings and instructions are supplied with the respective controller.

2.4.2. Initial Wiring Installation

Key: Mains supply = 2 core and earth MC200 Controller = 8 core and earth alt. MC300 Controller = 6 core screened + LNE Optional MC200 sensor = Screened 2 core* * (screen must be grounded only at the MC200, See

instructions supplied with controller for wiring sizing, Max. 100m)

Fused

Isolator

Controller

(MC200 shown)

Remote Sensor

(optional)

230V

Supply

Typical wiring

installation

2.4 Electrical Cable Installation

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.4.4. Wiring Connections

* when used

F - Free Blowing Unit CCF - Centrifugal Unit

Model

Running

Current (A)

Fuse/MCB Rating (A)

Running

Current (A)

Fuse/MCB Rating (A)

(motor rated Protection Device)

LNVx15

0.4 3 / 6 2.0 3 / 6

LNVx20

0.45 3 / 6 3.1 6 / 6

LNVx25

0.6 3 / 6 4.2 6 / 6

LNVx35

1.1 3 / 6 N/A N/A

LNVx40

0.85 3 / 6 5.8 10 / 10

LNVx45

1.53 3 / 6 7.6 10 / 10

LNVx50

1.6 3 / 6 7.6 10 / 10

LNVx60

2.3 3 / 6 10.0 (4.8) 13 / 13 (6 / 6)

LNVx70

2.2 3 / 6 11.0 (5.3) 13 / 13 (10 / 10)

LNVx90

3.1 5 / 6 17.0 (4.6) 20 / 20 (10 / 10)

LNVx120

4.4 5 / 6 20.0 (4.9) 25 / 32 (10 / 10)

LNVx140

4.5 5 / 6 20.0 (5.0) 25 / 32 (10 / 10)

2.4.3. External Wiring

The wiring terminals are located on the electrical panel behind the side door of the heater which firstly has to be opened.

Mains input 230V 50Hz 1Ph supply connections are via a separate LNE terminal block. For input power refer to table below. Control circuitry / external control mains connections are via a numbered terminal strip. These

being:

2.4.5. External Fuses

*Modulating signal

0-10Vdc

*Modulating signal

0Vdc

Lockout Reset

(Switched Neutral)

Lockout Indication

230V

Output 230V

*High Fire Circuit

Input 230V

Fan Only Signal

230V

230V Mains Output

Heat On Signal

230V

Live Output

230V Supply

for Controller

Neutral

Earth

t10

t11

2.4 Electrical Cable Installation

L E N

E N

230v Supply for Controller

L Modulating (-) Modulating (+) 0-10v

Lockout Reset

Lockout Indication

- N.O. Thermostat or Relay

- 230v in. ( Delay on, Delay O)

- Accessory Terminal. 4A Fuse Protected

- 230v in. Not used on modulating heaters

High Fire

Call for Fan Only 230v Out Call for Heat

MAINS SUPPLY 230V AC 50HZ

- Momentary switch to neutral

- 230v out

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.4.6. Interconnecting Wiring:

2.4.6.1. LNVx High / Low to Powrmatic MC200

2.4.6.2. LNVx Modulation to Powrmatic MC200

Warning: External controls MUST be powered via heater terminal 10, 11 and Earth

2.4 Electrical Cable Installation

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

LNVx High / Low Internal Wiring

21 C

Yel

Main loom assembly

Wiring Legend

Wire size: 0.5mm

Wire size: 1.0mm

Loom sub-assembly

GAS

VALVE

AMBER

RESET

INDICATOR/

LIMIT

STAT

FAN

EXHAUST

MAIN

FAN(S)

AIR

PRESSURE

SWITCH

RedViBlk

G/Y 0.5

Grn

G/Y 0.5

Grn

Gry

Vi Blu

Red

G/Y 1.0

Or 1.0

Blu

Male

Female

Blu

Hi-Lo

Head

Gas Valve

Blu 1.0

Bullet connector

Spliced connection

6.3 x 0.8mm Push-on (Female)

Boot lace ferrule

21 C

Yel

Main loom assembly

Wiring Legend

Wire size: 0.5mm

Wire size: 1.0mm

Loom sub-assembly

GAS

VALVE

AMBER

RESET

INDICATOR/

LIMIT

STAT

FAN

EXHAUST

MAIN

FAN(S)

AIR

PRESSURE

SWITCH

RedViBlk

G/Y 0.5

Grn

G/Y 0.5

Grn

Gry

Vi Blu

Red

G/Y 1.0

Or 1.0

Blu

Male

Female

Blu

Hi-Lo

Head

Gas Valve

Blu 1.0

Bullet connector

Spliced connection

6.3 x 0.8mm Push-on (Female)

Boot lace ferrule

PACTROL

CON 1

MicroGas P25

CON 4

CON 5

CON 3

JT 1

CON 6 CON 7

JT 2

21 C

Yel

Main loom assembly

Wiring Legend

Wire size: 0.5mm

Wire size: 1.0mm

Loom sub-assembly

GAS

VALVE

AMBER

RESET

INDICATOR/

LIMIT

STAT

FAN

EXHAUST

MAIN

FAN(S)

1817161

AIR

PRESSURE

SWITCH

RedViBlk

G/Y 0.5

Grn

G/Y 0.5

Grn

Gry

Vi Blu

Red

Blu 1.0

Or 1.0

Br 1.0

G/Y 0.5

Blk 0.5

G/Y 1.0

Or 1.0

Blu

Grn

Blu

Yel

Male

Female

Blu

Hi-Lo

Head

Gas Valve

Blu 1.0

C NO NC

GV PACTROL

Bullet connector

Spliced connection

6.3 x 0.8mm Push-on (Female)

Boot lace ferrule

2.5 Wiring Diagrams

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

LNVx Modulation Internal Wiring

2.5 Wiring Diagrams

PACTROL

CON 1

MicroGas P25

CON 4

CON 5

CON 3

JT 1

CON 6 CON 7

JT 2

456

Yel

SWTRL

GV PACTROL

NCNOC

Main loom assembly

Wiring Legend

Wire size: 0.5mm

Wire size: 1.0mm

Loom sub-assembly

GAS

VALVE

AMBER

INDICATOR/

RESET

LIMIT

STAT

FAN

EXHAUST

MAIN

FAN(S)

16151

AIR

PRESSURE

SWITCH

Red

Blk

G/Y 0.5

Grn

G/Y 0.5

Grn

Red

Gry

Blu

Blu 1.0

Or 1.0

Br 1.0

G/Y 0.5

Blk 0.5

G/Y 1.0

Blu

Or 1.0

Blu

Grn

Blu

Yel

Male

Bullet connector

Female

Spliced connection

21 C

LIMIT

STAT1

21 C

LIMIT

STAT2

Red Neon

Terminal 1

Stat extension

connections

(when

secondary stat

is tted).

Brn

Pactrol

Blk

Gry

Red

Gry

Wht

0v-

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Gas Safety (Installation & Use) (Amendment) Regulations

It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the

current issue of the above regulations. Failure to install appliances correctly can lead to prosecution. It is in your own interests and that of safety to ensure that the law is complied with.

* Gas Safe Registered Engineer

2.6.1. Electrical Installation

Checks to ensure electrical safety must be carried out by a qualified person.

2.6.2. Gas Installation

For new installations, the whole of the gas installation, including the meter, should be inspected and tested for soundness and purged in accordance with the recommendations of IGE/UP/1 (Edition 2) or IGE/UP/2A as appropriate.

2.6.3. Air Distribution System

The system should be checked to ensure that the installation work has been carried out in accordance with the design requirements.

Particular attention should be given to the correct arrangement of delivery ducts and registers, return air ducts and grills and general adequacy of return air paths.

For LNVx D and LNVx CCF units ensure that the duct work is balanced so that the specified motor running currents are achieved See section 1.2

2.6.4. Checks before Operating the Air Heater

The following preliminary checks should be made before lighting the heater(s) a) Ensure that the ELECTRICAL supply to the heater is switched OFF.

b) Check that all warm air delivery outlets are open.

c) Check that all external controls are calling for heat.

d) If an MC200 or MC300 is being used ensure that the control is set to winter operation.

2.6.5. Operating the Air Heater

NOTE: On initial lighting of the heater(s), it may take some time to purge the internal pipe work of air.

Model 15 20 25 35 40 45 50 60 70 90 120 140

Natural Gas G20

High Fire CO2 % 8.20 8.67 8. 41 8.02 8.80 8.80 8.6 8.46 9 .15 7.50 8.40 8.72

FGT (nominal) °C 143.8 147. 6 154.5 150.5 153.2 130.7 152.0 149.7 15 8.6 132.0 153.0 128.0

Low Fire CO2 % 4.07 5.04 4.82 4.76 5 .15 5.20 4.9 4.83 5.00 4.50 5.00 4.99

FGT (nominal) °C 105.2 119 .7 123.4 124.0 12 3 .1 105.7 120.5 115.0 121.7 123.0 121.0 98.4

Propane G31

High Fire CO2 % 9.00 9.20 9.40 9.8 9.86 10.02 10.0 9.50 9.60 7. 5 0 9.40 9.31

FGT (nominal) °C 136.2 149.7 151.3 153.0 152.8 130.8 178.0 148.4 15 8.9 143.0 148.0 126.6

Low Fire CO2 % 4.54 5.90 5.43 5.9 5.92 5.93 5.90 5.64 6.07 4.80 5.60 5.97

FGT (nominal) °C 100.7 119.0 120.3 142.0 123.7 105.0 126.0 113.0 125.9 119.0 122.0 99.8

2.6 Commissioning and Testing

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

4. If it is necessary to adjust either the high fire or low fire pressures proceed as follows after levering off the plastic cover from the High/Low regulator.

Note: High fire setting must be adjusted first after which the low fire setting can be set. Any adjustment of the high fire setting alters the minimum setting.

2.6.6.1.1.1. SIT Sigma 843 Adjustment

Maximum Setting.

With the controls set to high fire, use an adjustable or 10mm spanner to screw the adjustment nut in to increase and out to decrease, until the required pressure is obtained.

Turn the burner On and OFF several times to check the pressure setting and then turn off.

Minimum Setting.

Disconnect electrical connection to the regulator and turn the burner back on and wait until the burner pressure has stabilised.

Keeping the nut stationary, use a 6 x 1 screwdriver to turn the slotted adjustment screw clockwise to increase and counter-clockwise to decrease, until the required pressure is obtained.

Reconnect high/low regulator and check high fire pressure.

Repeat both steps if necessary and then replace cover cap

Adjustment nut (10mm) for maximum pressure setting

Cap

Adjustment screw for minimum pressure setting

5. Turn off the main burner, disconnect the pressure gauge and replace the sealing screw.

IMPORTANT: The internal pipe work of the appliance has been tested for soundness before leaving the factory. After establishing the main burners test round the gas inlet

connection using a leak detection fluid.

1. Switch on the electrical supply at the isolator.

NOTES: If the red indicator illuminates, remove the adjacent black cap and press the High Limit Reset button. If the amber rocker switch illuminates, depress the switch for 2 seconds to reset the burner lockout.

2. The ignition sequence should now commence. After a delay of approximately 45 seconds the ignition spark will be generated and the main gas valves energized. The burners will then light.

3. If the burners fail to light the control box will complete a further four ignition attempts. If at the end of five attempts the burners have still not lit the control box will go to lockout and the amber rocker switch will be illuminated. To restart the ignition sequence depress the illuminated reset button for about 1-2 seconds.

4. SHUT OFF Set the external controls to OFF or MIN.

2.6.6 Adjustments

2.6.6.1. Burner Gas Pressures

This is set for the required heat input before despatch. High and low pressures should be checked in the following manner:

2.6.6.1.1. High/Low Regulation

1. Set external controls to ensure the main burner is off. Open the side access panel. Connect a pressure gauge to the burner pressure test point on the multifunctional control.

2. Set external controls to turn on the main burner and maintain high fire. Compare the measured burner gas pressure to that stated on the data plate. In addition it is advisable to check the gas rate using the gas meter dial pointer ensuring that no other appliances supplied through the meter are in operation.

3. Repeat 2 above with external controls set to maintain low fire.

2.6 Commissioning and Testing

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.6.6.1.1.2. Honeywell V4336 Adjustment

Maximum Setting

With the controls set to high fire, use an adjustable or 8mm spanner to turn the adjustment screw, clockwise to increase and counter-clockwise to decrease, until the required pressure is obtained

Turn the burner On and OFF several times to check the pressure setting and then turn off.

Minimum Setting

Disconnect electrical connection to the regulator and turn the burner back on and wait until the burner pressure has stabilised.

Use a screwdriver to turn the slotted adjustment screw clockwise to increase and counter-clockwise to decrease, until the required pressure is obtained.

Reconnect high/low regulator and check high fire pressure.

Repeat both steps if necessary and then replace cover cap.

Cover Lever point

Hexagonal adjustment screw for maximum pressure setting

Internal slotted adjustment screw for minimum pressure setting

5. Turn off the main burner, disconnect the pressure gauge and replace the sealing screw.

2.6.6.1.2. Modulating Regulation

1. Set external controls to ensure that the main burner is off. Open the side access panel. Connect a pressure gauge to the burner pressure test point on the multifunctional control.

2. Set external controls so as to turn on the main burner and maintain high fire. Compare the measured burner gas pressure to that stated on the data plate. In addition it is advisable to check the gas rate using the gas meter dial pointer ensuring that no other appliances supplied through the meter are in operation.

3. Repeat 2 above with external controls set to maintain low fire.

4. If it is necessary to adjust either the high fire or low fire pressures proceed as follows after removing the plastic cover from the Modulating regulator.

Note: Minimum fire setting must be adjusted first after which the high fire setting can be set. Any adjustment of the minimum fire setting alters the maximum setting.

Minimum Setting.

Disconnect electrical connection of modulating regulator and turn burners back on and wait until the burner pressure has stabilised.

Turn 9mm adjustment nut for low fire pressure clockwise to increase and counter-clockwise to decrease until the required pressure is obtained.

Reconnect modulating regulator and check high fire pressure, readjust if necessary.

Maximum Setting.

Disconnect electrical connection of modulating regulator and turn burners back on and wait until the burner pressure has stabilised.

Push shaft gently downwards to the maximum adjustment screw and hold there. Turn 7mm adjustment nut for high fire pressure, clockwise to increase and counter-clockwise to decrease, until the required pressure is obtained. Release shaft.

Repeat both settings if necessary and then replace cover cap.

‘O’ ring

Adjustment nut (9mm) for minimum pressure setting

Adjustment nut (7mm) for maximum pressure setting

Cap

Shaft

6.3mm AMP terminals

5. Turn off the main burner, disconnect the pressure gauge and replace the sealing screw.

2.6 Commissioning and Testing

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.6.6.1.3. Modulating Control Board

For Modulation a modulating control board is fitted (which also includes the fan command outputs). The board interfaces between a 0-10VDC control signal and the modulating regulator.

Basic operation method

1. With the 0 to 10 signal at 0, the gas valve drive signal will be de-energised.

2. When the input control signal goes to >2V, the gas valve drive output will be at its maximum output value for a preset 2 minutes.

3. An input signal from the burner controller - when received by the board continually for more than 30 seconds - will switch an output to the main heater fan.

4. After the preset 2 minutes of maximum output, the 0 to 10V input signal will take control of the gas valve drive.

5. When the 0 to 10V signal drops below 1V the signal will drop to zero and the gas valve drive signal will be deenergised.

6. The fan output will continue for a further 2.5 minutes.

2.6.6.2. Final Adjustments

1. In addition it is advisable to check the gas rate using the gas meter dial pointer. Ensure that no other appliances supplied through the meter are in operation.

2. If required, after checking or setting the burner pressures, the CO2 content in the flue gases can be checked by sampling in the first section of flue fitted to the flue outlet of the unit. Nominal CO2 values are given for guidance in the table at the bottom of the previous page.

3. Turn on the main burner as before and test for gas soundness around pressure test joint using a leak detection fluid e.g. soap solution. Replace access panel.

2.6.6.3. Flame Current

1. To measure the flame current connect a multimeter capable of measuring micro amps as shown in the following diagram.

Flame Current

Measurement

2. Minimum current reading is 0.5µA and normal value should be 1.5µA or higher.

2.6.6.4. CCF Adjustments

The running current of the centrifugal fan must be checked once the heater is running and compared with the following table.

Model

Pha

Motor

Typical

Running

Current

Max

Running

Current

LNVx15 1 0.25 2.0A 5.0A

LNVx20 1 0.42 3 .1A 4.2A

LNVx25 1 0.42 4.2A 4.2A

LNVx40 1 0.55 5.8A 8.0A

LNVx45 1 1.1 7. 6A 9.8A

LNVx50 1 1 .1 7.6A 9.8A

LNVx60 1 1.4 9.8A 10.0A

LNVx70 1 1.4 11.0A 12.0A

LNVx90 1 2 x 0.55 6.4A 8.0A*

LNV x120 1 2 x 1.4 8.5A 10.0A*

LNVx140 1 2 x 1.4 10.0A 10.0A*

* current shown for each fan

WARNING: Exceeding the MAX running current will cause the fan’s thermal overload to trip!

Adjust the balancing dampers within the airflow ductwork system to achieve a current suitable for the model in question.

2.6 Commissioning and Testing

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2. Check that the room thermostat and all automatic controls are operating satisfactorily.

2.6.8. Handing over the Air Heater

Hand these instructions to the user or purchaser for retention and instruct in the efficient and safe operation of the air heater and associated controls. Adjust the automatic controls to those values required by the User.

Finally, advise the user or purchaser that, for continued efficient and safe operation of the air heater, it is important that servicing is carried out annually.

In the event that the premises are not yet occupied turn off the gas and electricity supplies and leave instructional literature adjacent to gas meter.

2.6.6.5. Limit Thermostat

Limit Thermostat settings:-

LNVx (all) = 90°C

Note: LNVx35 & 90 - 140 units have a single limit thermostat whereas LNVx 90 to LNVx 140 units have two. The second stat is at the

opposing side of the heater to the burner/ controls end. The limit thermostats are wired in series (either thermostat will shut down the burner).

2.6.7. Air Heater Controls

1. Close the gas service tap and ensure that the gas valve is heard to close within 1 second and that the lockout light is illuminated. Note that the heater may attempt five re-ignitions before going to lockout. Open the gas service tap and reset the unit from lockout.

2.7.1. General

Full maintenance should be undertaken not less than once per year by a qualified person.

No 'specialised 'tools will be required to carry out this service.

A fault finding guide is given in section 3.1 to aid servicing.

After any servicing work has been complete, or any component replaced, the air heater(s) must be fully commissioned and tested for soundness as described in Section 2.6.

To commence servicing, firstly open the side access door by rotating the quarter turn screw(s).

2.7.2. Main Burner Assembly Removal

1. Ensure that the gas service valve is turned OFF and then unscrew the union nut situated immediately downstream of it.

2. Disconnect the spark and rectification leads from the control box and remove the electrical plug connections from the top of the gas control valve assembly.

3. Remove the burner heat shield, 3 screws.

Gas Safety (Installation & Use) (Amendment) Regulations

It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the

current issue of the above regulations. Failure to install appliances correctly can lead to prosecution. It is in your own interests and that of safety to ensure that the law is complied with.

* Gas Safe Registered Engineer.

WARNING: Always switch off and disconnect electricity supply and close the gas service valve before carrying out any servicing work or replacement of failed components.

NOTE: If a suspended air heater is to be serviced do not lean ladders against the heater.

Ensure that an access tower or equivalent is used.

NOTE: The access door to the controls section may be removed to improve access.

Open the door to 90°, remove the earth cable at the bottom, and then lift the door vertically upwards to disengage the hinge plates.

Refit in reverse order. Ensure that the earth cable is refitted.

2.6 Commissioning and Testing

2.7 Servicing

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.7 Servicing

4. Release the inlet connection flange from the gas valve by removing the four screws.

5. If required remove the manifold by removing the four screws securing it to the burner assembly.

6. Remove the two screws that secure the top of the burner assembly to the bulkhead and lift out burner assembly.

7. Using a stiff brush, not a wire brush, brush the burners to dislodge accumulated deposits. Inspect the burners both internally and externally to ensure that they are clean. Examine the injectors and if damaged or deteriorated, replace with new ones of the correct size and marking. If deemed necessary, clean the injectors. Do not broach out with wire.

8. Reassemble the injectors, manifold and burners in reverse order to that above.

2.7.3. Ignition and Rectification Electrodes

Note: The ignition electrode is located at the bottom of the burner assembly, the rectification electrode is located at the top of the burner assembly.

Inspect the electrodes, making sure that they are in a sound and clean condition. In particular check that the ignition electrode is clean and undamaged. Check that the spark gap is 2.5mm and that the rectification probe is 10 12mm forward of the burner.

2.5mm

Ignition Electrode Spark Gap

2.7.4. Exhaust Fan

1. Remove the four screws securing the flue outlet socket.

2. Disconnect the fan electrical connections from the main terminal strip

3. Remove the screws securing the fan mounting box to the exhaust header plate.

4. Clean impeller by brushing with a stiff brush.

5. Re-assemble using a new sealing gasket to the fan mounting box. Use silicon sealant around the joints.

2.7.5 Heat Exchanger

Whilst the main burner assembly is removed from the unit, check that the primary sections that the burners fire into are clean

2.7.6 Main Fan Assembly

2.7.6.1. LNVx F & CCF Models

1. Inspect the fan blades for any damage or excessive buildup of deposits that could give rise to an imbalance. Remove the assembly for cleaning as follows.

2. Slacken the cable gland on the heater casing through which the fan electrical cable passes.

3. Disconnect the fan leads from the electrical terminals.

4. Withdraw cable through entry grommet.

5. Remove the fan and motor assembly complete by removing the hexagon headed screws that secure the fan to the rear panel.

6. Reassemble in reverse order.

2.7.6.2. Centrifugal Fan/Silencer Section

1. Remove section side panel(s) and inspect the fan blades for any damage or excessive buildup of deposits that could give rise to an imbalance. Remove the assembly for cleaning as follows.

2. Slacken the cable gland on the casing through which the fan electrical cable passes.

3. Disconnect the fan leads from the electrical terminals in the contactor enclosure.

4. Withdraw cable through entry grommet.

5. Remove the complete fan assembly by removing the fixings securing the fan to the base rails.

6. Reassemble in reverse order.

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.7.7. Replacement of Faulty Components

Only parts supplied via or authorised by Powrmatic should be used. A short list of parts and part numbers are detailed in section 3.2 of this manual. If in doubt, please contact Powrmatic.

2.7.7.1 Multifunctional Control

1. Ensure that the gas service valve is turned OFF. If a flexible gas connection has been used go to step 2 otherwise unscrew the union nut situated immediately downstream of the gas service valve.

2. Remove the electrical plug connections from the top of the multifunctional control.

3. Release the flanged connections at the inlet and outlet of the multifunctional control and remove the multifunctional control.

4. Reconnect the new valve in the reverse order to that above ensuring that the valve is correctly orientated. Renew the sealing 'O' rings if necessary.

2.7.6.2. Burners

1. Remove the burner assembly as described in Section

2.7.2.

2. Remove the end plates of the burner assembly and the central burner support plate.

3. Exchange burners as required and reassemble components in reverse order.

4. Re-commission the appliance as described in Section

2.6.

2.7.6.3. Electrode Assemblies

1. Disconnect the electrode leads from the control box as appropriate.

2. Remove the screw securing the electrode assembly to the burner assembly side plate and withdraw the assembly.

3. Fit replacement and reassemble in reverse order. Check that the spark gap is 2.5mm (See section 2.7.3) and the rectification electrode is 10 - 12mm forward of the burner.

2.7.7.4. Limit Thermostat

NB. Ensure that the thermostats are set correctly before fitment

Limit Thermostat settings:-

LNVx (all) = 90°C

1. Remove the screws securing the thermostat phial mounting plate to the inner bulkhead*, withdraw assembly and unclip the phial.

2. Remove the electrical connections from the limit thermostat.

3. Remove the securing nut and remove thermostat from the front panel.

4. Fit replacement thermostat in reverse order.

Note*: LNVx35 & 90 - 140 units have a second limit stat at the opposing end of the heater to the burner/controls. Remove the two small cover plates and replace as above.

2.7.7.5. Exhaust Fan

1. Remove the four screws securing the flue outlet socket.

2. Disconnect the fan electrical connections from the main terminal strip

3. Remove the screws securing the fan mounting box to the exhaust header plate.

4. Remove fan assembly.

5. If needed, transfer the fan mounting box to the replacement fan.

6. Fit replacement exhaust fan, using new gaskets and silicon sealant as necessary, and reassemble in reverse order.

2.7 Servicing

Page 37

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

2.7 Servicing

2.7.7.6. Air Pressure Switch

1. Remove the two screws securing the cover and remove cover.

2. Disconnect electrical connections.

3. Pull off the sensing tube from the air pressure switch.

4. Note the setting of the old pressure switch.

5. Remove the screws fixing the air pressure switch and remove switch.

6. Fit replacement in reverse order refitting the sensing tube to the negative (- or L) tapping on the pressure switch. Adjust setting to that of the old pressure switch.

2.7.7.7. Control Box

1. Unplug all the electrical connections.

2. Remove the two screws that secure the control box in place.

3. Fit replacement in reverse order.

2.7.7.8. Fan Command Module

1. Unplug all the electrical connections by squeezing each side to release.

2. Using a small flat screwdriver push on the locking tab of each PCB mount and gently ease the board upwards to release.

3. Fit replacement in reverse order.

2.7.7.9. Centrifugal Fan/Motor

1. Disconnect the electrical connections to the centrifugal fan section.

2. Remove the side panels of the section for access to the fan and motor.

3. Fit replacements as appropriate and reassemble in reverse order.

Note: If a 3ph motor is being replaced ensure that the direction of rotation is correct. If it is not interchange any two of the three phases connected to the motor.

Page 38

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

3.1 Fault Finding

Is there

now 230V between

Pactrol controller terminals

CON5 - pin 1 and

pin 2?

Burner in Lockout.

Press the illuminated

amber rocker switch

Is there

continuity between

Pactrol controller terminals

CON5 - pin 1 and

pin 7?

Is there

230V bet ween

Pactrol controller terminals

CON5 - pin 3 and

Neutral?

YES

there

230V at

contractors terminal 6?

AMBER lamp will be

indicating

YES

TURN ON MAINS

ISOLATOR!

Check the

internal fuse

inside the

Pactrol

there

NOW continuity

between Pactrol controller

terminals CON5 - pin

1 and pin

Replace Pactrol!

Check for break

in BROWN cable.

YES

Is there

230V bet ween

Pactrol controller terminals

CON5 - pin 1 and

pin 2?

START

YES

Is the unit

in overheat trip?

RED lamp will be

indicating

No call for heat!

Check controller!

there

230V at

contractors

terminal

Is the exhaust fan

running?

Is there

230V on the WHITE

cable to the 'N.O' terminal

of the Pressure

switch?

Replace

Pactrol!

YES

there 230V on the YELLOW cable to the 'C' terminal of the Pressure

switch?

YES

Pressure Swirch stuck

in a closed position

Change A. P.S. !

YES

Heater in Overheat.

Remove the black cap

and press the button

YES

Check for break

in WHITE &

GREY cables.

the inpulse tube

connected to the negative

connection ofthe pressure

switch?

YES

there 230V on the YELLOW cable to the 'C' terminal of the Pressure

switch?

YES

Swap terminals

Still not

working?

Continued on

Replace Pactrol!

YES

Replace

Combustion

Fan!

YES

Page 39

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

YES

YES YES

Is there

230V bet ween

contractors terminals 14 and

15? Green lamp will be

indicating?

Continued from

Replace

Gas Valve and

Lead!

Check for break in

VIOLET & WHITE

cables.

there

NOW 230V

between contractors

terminals 14

and 15?

Replace Pactrol!

YES

Is the Gas

Solenoid Valve

energised to HIGH FIRE?

(for only 30 seconds if input

is at low fire)?

YES

Is a

spark present and

the Ignition Electrode and

flame present during the 5

second period?

• Ensure spark gap is 2.5mm

• Ensure there are no cracks on the ceramic

• Clean electrode with wire wool

• Ensure heater has a good earth

• Check cable to Pactrol

Replace

Electrode!

YES

Is the

flame sensor

sending a rectification

signal back to the

controller?

• Ensure there are no cracks on the ceramic

• Clean electrode with wire wool

• Ensure mains polarity is correct

• Check cable to Pactrol

Has the

flame rectified

NOW?

• Check flame current by connecting a sensitive

multi-meter capable of

measuring micro amps

• Minimum reading is 1.0μA a normal value should

be 1.5μA or higher.

YES

there

NOW a

spark present

at the ignition

Electrode?

Has the

flame rectified

NOW?

Replace Pactrol!

Is there

230V on the

BROWN cable from

terminal 'C' of the

Fan Comand

Module?

Replace Pactrol!

Replace Main

Fan Command

Manual!

YES

Is there

230V on the

WHITE & PURPLE cables to

terminal 'GV PACTROL' of

the Fan Command

Module?

Has the Gas Solenoid

Valve energised?

YES

Continued on

there

NOW a spark present at the ignition

Electrode?

3.1 Fault Finding

Page 40

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

YES

Burner Fired!

Has the main fan

star ted after the 30 second

delay?

Is there

230V at terminal

'SW' on the Fan Command

Module?

• Check for 230V on terminals L & N on Fan Command Module.

• Check for 230V between terminals GV on Fan Command Module.

Has

the main fan

star ted

NOW?

• Check the operation of the main fan by

connecting it to

a permanent mains

supply.

Replace Main

Fan Assembly!

YES

Replace Main

Fan Command

Manual!

Heater Working!

Does

the burner

go into high limit

trip af ter a period

of time?

• Check burner pressure for correct setting.

• Check Overheat Stat for incorrect limit setting.

• Check fan rotation.

• Remove the black cap and press the reset button

Replace

Limit Stat!

YES

Continued from

Has

the main fan

star ted

NOW?

Burner

STILL in high

limit trip?

YES

3.1 Fault Finding

3.1.1 Modulation Driver LED Indication

The unit will have a single LED indicator and will provide the following information :-

Steady on LED

Unit in standby mode (all outputs off)

1 LED Blink

Summer fan “ON” mode active.

2 LED Blinks

DC control signal received >2V, Heating mode gas valve drive at maximum.

3 LED Blinks

Fan output on, (heating mode) Heating mode gas valve drive follows DC input.

4 LED Blinks

DC control signal <2V. Heating mode now off but fan in overrun mode (2.5 mins max)

Slow on off @ 50%

Auto Time Out has occurred. (i.e. DC control signal received >2V but no trigger from sequence controller within 5 mins.

Page 41

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Item Description Usage Part No.

Gas Valve SIGMA 843 15-50 145035208HL-SIT/KIT

Gas Valve VK4105A 15-50 145035208/KIT

Gas Valve VR4605AB 60-90 145035204/KIT

Gas Valve V425AB 120/140 1413 7 8715/K IT

Ignition Electrode

15 -70 90-140

142423010 142423004

Rectification (Flame Sensor) Probe All 142423003

Burner

15 -70 90-140

142400240 142400241

Limit Stat All 142403609

Control Box (Sequence Controller)

All High/Low All Modulation

145030846 145030847

High/Low Governor Head 15-140 -/HL 142466402

3.2 List of Parts

Page 42

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Modulation Governor Head 15-140 -/MOD 142466403

Fan & Modulation Burner Controller 15-140 -/MOD 142400303M

Lockout Reset Switch All 143070276

Fan Command Module MkIII All (except /MOD) 142403603

Pressure Switch HUBA 604

15 -70 90-140

146522176 142522177

Exhaust Fan Exhaust Fan c/w Mounting Brackets

15-50 15-50

140210496 NV X1050EXH/SP

Exhaust Fan Exhaust Fan c/w Mounting Brackets

60 & 70 60 & 70

140201505 NVX6075EXH/SP

Exhaust Fan Exhaust Fan c/w Mounting Brackets

90-140 90-140

140201506 NVX90140EXH/SP

Main Air Fan - LNVx F

15 20 25 35/40 50/90 60/70/120/140

140232002/E/15 140232003/E/15 140232004/E/15 140232005/E/15 140232006/E/15 140232007/E/15

Contactor

120-140, All -/CCF 60-90, All -/CCF

143000600 143000601

3.2 List of Parts

Page 43

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Main Centrifugal Blower - LNVx CCF

20/25

40/50/90

120 /14 0

1402CFAN0 09

1402CFAN150/ T/15

1402CFAN210/T/15

1402CFAN580/T/15

1402CFAN550/T/15

1402CFAN580/T/15

3.2 List of Parts

Page 44

page no. 44 of 48

LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

3.3 Gas Conversion

Gas Safety (Installation & Use) (Amendment) Regulations

It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the

current issue of the above regulations. Failure to install appliances correctly can lead to prosecution. It is in your own interests and that of safety to ensure that the law is complied with.

* A gas safe registered Engineer.

3.3.1. General

Heater conversion between gases will require a change of burner injectors, alteration of burner pressure and re-commissioning of the heater. (Refer to section 2.6 for commissioning details.)

Ensure that the gas inlet pressure to the

heater is correct for the new gas, and that the

gas supply has been purged of the old gas.

(Refer to tables opposite for new gas inlet

pressures.)

3.3.2. Burner Conversion

1. Ensure that the gas service valve is turned OFF.

2. Remove the burner heat shield, 3 screws.

3. Release the outlet connection flange from the gas valve by removing the four screws.

4. Remove the manifold by removing the four screws securing it to the burner assembly.

5. Remove the main burner injectors and washers.

6. Replace with the new injectors/washers for the new gas ensuring a gas tight seal.

7. Refit all other components in reverse order.

3.3.3. Gas Valves

All gas valves used on the LNVx range have pressure regulators that may be set to operate on natural gas or propane (LPG).

Conversion is carried out by adjusting the high and low burner pressures to the value in the tables opposite.

(Refer to full regulator adjustment in section 2.6.6.1)

Note*: Ensure the original data badge is removed and replaced with new data badge and "change of gas" stickers.

3.3.3.1. Sigma 843 Adjustment

Adjustment nut (10mm) for maximum pressure setting

Cap

Adjustment screw for minimum pressure setting

3.3.3.2. Honeywell High/Low Adjustment

Cover Lever point

Hexagonal adjustment screw for maximum pressure setting

Internal slotted adjustment screw for minimum pressure setting

3.3.3.3. Honeywell Modulating Adjustment

‘O’ ring

Adjustment nut (9mm) for minimum pressure setting

Adjustment nut (7mm) for maximum pressure setting

Cap

Shaft

6.3mm AMP terminals

Page 45

page no. 45 of 48

LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Natural Gas to Propane (LPG) Conversion Data

Nominal Inlet Pressure = 37mbar, Minimum Inlet Pressure = 37mbar

High Fire Low Fire

Injectors

Burner

Pressure

Burner

Pressure

MODEL

Conversion Kit

part number

No. Size (mm)

Marked

Injector part

number

mbar mbar

LNVx15 NVx15LPG 4 1.36 240 142401661 21.3 8.0

LNVx20 NVx20LPG 4 1.36 240 1424 01661 19.8 9.2

LNVx25 NVx25LPG 5 1.36 240 1424 01661 21.3 10.2

LNVx35 NVx35LPG 7 1.60 160 142401678 22.5 11.5

LNVx40 NVx40LPG 8 1.36 240 142401661 19.5 25.8

LNVx45 NVx50LPG 10 1.6 160 142401678 18.4 29.3

LNVx50 NVx50LPG 10 1.6 160 142401678 24.2 12.2

LNVx60 NVx60LPG 8 1.6 160 142401678 25.4 12.3

LNVx70 NVx75LPG 10 1.6 160 142401678 22.9 11.5

LNVx90 NVx90SFLPG 8 2.26 580 142401667 13.5 7. 2

LN Vx120 NVx120SFLPG 10 2.26 580 142401667 14.6 7.2

LNVx140 NVx140SFLPG 12 2.26 580 142401667 13. 4 6.4

Propane (LPG) to Natural Gas Conversion Data

Nominal Inlet Pressure = 20mbar, Minimum Inlet Pressure = 17.5mbar

High Fire Low Fire

Injectors

Burner

Pressure

Burner

Pressure

MODEL

Conversion Kit

part number

No. Size (mm)

Marked

Injector part

number

mbar mbar

LNVx15 NVx15NG 4 1.94 500 1424 01664 13.1 5.0

LNVx20 NVx20NG 4 1.94 500 142401664 12.3 6.0

LNVx25 NVx25NG 5 1.94 500 142401664 13.5 6.5

LNVx35 NVx35NG 7 2.54 750 142401665 13.2 6.8

LNVx40 NVx40NG 8 1.94 500 142401664 12.3 6.0

LNVx45 NVx50NG 10 2.54 750 142401665 7.4 3.5

LNVx50 NVx50NG 10 2.54 750 142401665 9.5 4.5

LNVx60 NVx60NG 8 2.54 750 142401665 10.6 5.2

LNVx70 NVx75NG 10 2.54 750 142401665 9.4 4.6

LNVx90 NVx90NG 8 3.5 1500 142401666 6.0 3.0

LN Vx120 NVx120NG 10 3.5 1500 142401666 6.7 3.3

LNVx140 NVx140NG 12 3.5 1500 142401666 6.2 2.9

3.3 Gas Conversion

Page 46

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Model cont. 40 45 50 60

Rated Heat Capacity

kW 40.5 47.0 54.4 65.0

Low Heat Input

Nett CV kW 28.2 32.5 37.4 45.1

Minimum Heat Capacity

kW 25.5 29.8 33.9 40.8

Useful Efficiency

High Fire % 93% 94% 93% 92%

Low Fire % 91% 92% 91% 90%

Electrical Power Consumption*

High Fire kW 0.07 0.06 0.06 0.06

Low Fire kW 0.07 0.06 0.06 0.06

Standby kW <0.01 <0.00 <0.01 <0.01

Ignition kW

0.00 0.00 0.00 0.00

NOx Seasonal (Gross)

mg/kWh

<96.0 <96.0 <96.0 <96.0

Envelope Loss Factor

% N/A N/A N/A N/A

Emission Efficiency

% hs, flow

94% 94% 94% 94%

Seasonal Space Heating Energy Efficiency

% hs,h

72.8% 74.4% 72.8% 74.4%

Model cont. 70 90 120 140

Rated Heat Capacity

kW 76.5 97.5 126.8 146.1

Low Heat Input

Nett CV kW 52.9 71.7 90.8 101.2

Minimum Heat Capacity

kW 47.8 65.3 83.5 93.3

Useful Efficiency

High Fire % 92% 92% 93% 94%

Low Fire % 90% 81% 92% 92%

Electrical Power Consumption*

High Fire kW 0.06 0.06 0.06 0.06

Low Fire kW 0.06 0.06 0.06 0.06

Standby kW <0.01 <0.01 <0.01 <0.01

Ignition kW

0.00 0.00 0.00 0.00

NOx Seasonal (Gross)

mg/kWh

<96.0 <96.0 <96.0 <96.0

Envelope Loss Factor

% N/A N/A N/A N/A

Emission Efficiency

% hs, flow 93% 93% 93% 93%

Seasonal Space Heating Energy Efficiency

% hs,h 72.1% 72.1% 73.7% 73.7%

Model 15 20 25 35

Rated Heat Capacity

kW 15.5 20.5 26.0 36.5

Low Heat Input

Nett CV kW 9.5 14.1 18.2 26.1

Minimum Heat Capacity

kW 8.6 12.7 16.3 23.8

Useful Efficiency

High Fire % 94% 93% 92% 93%

Low Fire % 90% 90% 90% 91%

Electrical Power Consumption*

High Fire kW 0.07 0.07 0.07 0.07

Low Fire kW 0.07 0.07 0.07 0.07

Standby kW <0.01 <0.01 <0.01 <0.01

Ignition kW

0.00 0.00 0.00 0.00

NOx Seasonal (Gross)

mg/kWh

<96.0 <96.0 <96.0 <96.0

Envelope Loss Factor

% N/A N/A N/A N/A

Emission Efficiency

% hs, flow

94% 93% 94% 94%

Seasonal Space Heating Energy Efficiency

% hs,h

72.4% 72.1% 72.1% 74%

Appendices

Information required for ecodesign (ErP) Directive 2009/125

Page 47

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LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Notes:

Page 48

page no. 48 of 48

LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.

Stamm International Corporation PO Box 1929 Fort Lee, NJ 07024 Tel: 201-947-1700 Fax: 201-947-9662 E-mail: stamminc@pobox.com

Stamm International HQ

www.powrmatic.co.uk

Powrmatic Limited Hort Bridge, Ilminster Somerset TA19 9PS tel: +44 (0) 1460 53535 fax: +44 (0) 1460 52341 e-mail: info@powrmatic.co.uk web: www.powrmatic.co.uk

Powrmatic Ireland

45 Broomhill Close

Tallaght

Dublin 24

tel: +353 (0) 1452 1533

fax: +353 (0) 1452 1764

e-mail: info@powrmatic.ie

web: www.powrmatic.ie

Getting In Touch

Powrmatic pursues a policy of continues improvement in both design and performance of its products and therefore reserves the right to change, amend or

vary specifications without notice. Whilst the details contained herein are believed to be correct they do not form the basis of any contract and interested

parties should contact the Company to confirm whether any material alterations have been made since publication of this brochure.

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